UNIVERSITY OF CALIFORNIA, SAN DIEGO
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3 1822 04429 0807
ATMOSPHERIC OPTICAL SYSTEMS
TECHNICAL NOTE NO. 211
January 1989
.
Offsite
(Annex-JO
tanals)
QC
974.5
T43
no. 211
WHOLE SKY IMAGER
MANAGEMENT OF RAW DATABASE
.
M. E. Karr
J. E. Shields

1.
**
.
UNIVERSITY
OF
CALIFORNIA
SAN, DIEGO
-
.
The material contained in this note is to be considered
proprietary in nature and is not authorized for distribution
without the prior consent of the Marine Physical Laboratory
and the Air Force Geophysics Laboratory
6
PER
LIFOR
.
Contract Monitor, Dr. J. W. Snow
Atmospheric Sciences Division
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Prepared for
Air Force Geophysics Laboratory, Air Force Systems Command
United States Air Force, Hanscom AFB, Massachusetts 01731
under contract NO. F19628-K-0005.
.
www........
SCRIPPS
INSTITUTION
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MARINE PHYSICAL LAB San Diego, CA 92152-6400
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3 1822 04429 0807
TECHNICAL NOTE NO. 211
WHOLE SKY IMAGER
MANAGEMENT OF RAW DATA BASE
by.
Monette E. Karr and Janet E. Shields
ABSTRACT
This note discusses the current whole sky imager database management
procedures applied to raw field data. Before WSI data is processed for
cloud/no cloud decisions, the data tapes need to be checked in, reviewed for
data quality and registered into the WSI library. The check-in process
verifies the arrival of incoming tapes, and monitors our progress in the
quality control procedures. The quality control process helps determine
whether or not non-standard routines are needed to read or process the data.
The tape archival process maintains a record of all WSI tapes received. As
the WSI database grows the management procedures may change and this
note will be updated.
florales
B
.
TABLE OF CONTENTS
.
......
i
n
NO
VIIWA
111..................
Abstract ........
1. Introduction.
Naming conventions ........
Tape check-in.........
Quality control validations.
4.1 Tape QC Programs ..............
4.2 Quality Checks ...
4.3 Tape QC Processing...
Tape archival.........
6. Status reports ................
7. Local apparent noon image archive .......
8. Hardcopy archives .....
9. Computer archives .............
10. Future Developments .......
11. Summary .....
0 00 00 00.00 vau A w wn
APPENDIX
B.
E.
F.
G.
H.
I.
Sample control log sheet
WSI data site contacts
Sample diagnostic file
Local Apparent Noon Computation
Sample Hardware log
Sample Software log
Running the Tape QC Program
Sample catalog file sheet
Sample Tape QC Report
TABLE INDEX
4-1
Equipment used to read WSI tapes
FIGURE INDEX
1-1
1-2
1-3
1-4
4-1
6-1
6-2
WSI Pre Image Processing Stage
Tape Check-In
Quality Control Validations
Tape Archival
WSI Data Acquisition & Archival Schedule
WSI Field Station Status Chart
WSI Data Tape Status as of 30 Sep 88
wa mig
1. INTRODUCTION
This note documents the database management procedures used to handle the incoming raw
field data from the whole sky imager. These procedures enable us to find, identify,and
document problems with the whole sky imager in addition to keeping a record of all WSI
tapes. The database management procedures are separated into 3 steps: they are tape
check-in, quality control, and tape archival. The documents used to perform these tasks
along with the documents created by these tasks are discussed and included in this note.
Figure 1.1 shows the steps involved in these procedures. Reference sheets A, B, and C,
shown in Figures 1.2 - 1.4, show the tape check-in, quality control and tape archival
processes in more detail.
2. NAMING CONVENTIONS
The tape check-in process maintains 1 file, the control log, which is further discussed in
Section 3. The control log is kept to note when we received the tape, when the tape was
processed through the QC routines and anything unusual about the tape. Control log file
names have the form aaaaaaa.log. 'aaaaaaa' is the 7 letter designation for the WSI station.
For the 7 WSI stations, the call letters are:
WSMRCST = C station (White Sands Missile Range C station)
WSMRHSF = HELSTF (White Sands Missile Range HELSTF)
KAFBANM = Kirtland (Kirtland Air Force Base Albuquerque New Mexico)
CLNWCCA = China Lake (China Lake Naval Weapons Center California)
MAFBGFM = Malmstrom (Malmstrom Air Force Base, Great Falls Montana)
MALABAR = Malabar
TBN
= Columbia To be named
The quality assurance programs create 2 types of files. The files created are diagnostic files
and local apparent noon (LAN) image files. These files are further discussed in Section 4.
Diagnostic and LAN file names have the following forms: cccnnna.xxx. 'ccc' is the 3
letter station code. For the 7 WSI field sites the codes are:
WSC = C station
WSH = HELSTF
KAA = Kirtland
CLA = China Lake
MAG = Malmstrom
BAR = Malabar
TBN = Columbia To be named
'nnn' is the 3 digit id # corresponding to the tape number. For LAN files, '.xxx' is
replaced with '.LAN'. For diagnostic files, '.xxx' is replaced with '.DGN'. The letter 'a'
is a letter between A-G and indicates a day number (1-7). As an example, the diagnostic
file for the third day on a Kirtland tape (whose ID number is 5) would be called
KAA005C.DGN.
CO
The tape archival sequence maintains one file, the catalog file, discussed in Section 5. The
catalog file is a reference file used to record all tapes in the WSI library. The naming
convention used here is similar to that used in the control log. The same seven digit call
letters are used to identify the field station, however '.CAT' is used as the extension. For
example the catalog for C station is called WSMRCST.CAT.
3. TAPE CHECK-IN
In this process we monitor the arrival of incoming tapes and the results of the QC
validations. When a tape arrives the date of arrival is noted on the tape jacket for later
reference. If the field station monitor has attached a note to the tape, the WSI engineers are
notified if the note discusses any system problems. Updating the control log is part of the
check-in process. A sample control log is given in Appendix A. The following
information is entered into the control log:
1) The date of tape arrival at MPL
2) The dates of data coverage
3) Tape identification number
4) The date the quality control process was completed
5) Comments regarding anything unusual in the tape e.g. full dark images
in the middle of the day.
Identification numbers are assigned in chronological order rather than in the order the tapes
were received. The date the tape was received and dates of data coverage are noted to
quickly discover any missing tapes. If a tape appears to be missing a phone call is made to
the WSI field station. The various contacts are listed in Appendix B. If the station has sent
the tape and it appears to be lost in the mail, efforts are made to retrieve the tape and an ID
number is reserved for the tape. By looking in columns 4 and 5 of the control log a user
can determine if a tape needs any special routine to handle the data. The control log is kept
on the computer used to process the tape, and a copy of the file is kept in a folder assigned
to the field station. The organization and contents of the field station notebook and tape
processing computer will be discussed later.
4. QUALITY CONTROL VALIDATIONS
4.1 Tape QC Programs
IS
After a tape has been received and its arrival noted in the control log, the tape is run through
the quality control routines. Currently, two software routines perform the quality control
process. These programs written by J. Malo, are called READTPQC and DGN. These
programs create two files: the diagnostic file, containing results of a variety of diagnostic
checks on the data, and the LAN files, which are image files of the image acquired closest
to local apparent noon. A sample diagnostic file is shown in Appendix C. To perform the
diagnostic checks the READTPQC routine first unpacks the byte encoded header
information which is embedded at the top of each image written to tape. The header
consists of the following information:
1)
2)
3)
4)
5)
6)
7)
8)
9)
3 character field station code
Quadrant number in which the image was displayed
Latitude and longitude of field station
The date the image was taken
The time the image was taken
The position of the iris
The position of the occulter
The spectral filter setting
The neutral density (ND) setting
..
.........
.....
.
.
.
.
.
10) Software version number
11) Hardware version number
12) Ten minute image count
13) One minute image count
The field station code is extracted from the header and used to name the diagnostic and
LAN files.
4.2 Quality Checks
The first check for proper system operation is the filter check. The quadrant number and
spectral filter setting are read to confirm proper spectral filter operation. In quadrant 1 the
spectral filter setting should be 0. In quadrant 2 the spectral filter setting should read 1. In
quadrant 3, spectral filter 2 is used and in quadrant 4, spectral filter 3 is used. If there is a
mismatch in any of these combinations, a spectral filter error is flagged in the diagnostic
file. When either the spectral filter or neutral density filter times out in going into the
scheduled filter position, an error code '999' is written to the headers rather than the correct
filter position. When this happens the QC program writes an error flag to the diagnostic
file.
The latitude and longitude values are used to compute local apparent noon (LAN). The
definition of local apparent noon is given in tech memo AV87-037t, contained in Appendix
D. The LAN image is saved and then checked for correct sensor orientation and occulter
position. The occulter position is checked every hour to see that it has moved 15 degrees
per hour and is therefore accurately tracking the sun.
The neutral density setting along with the aperture setting are read to assure that the flux
control algorithms are working as they should. If the neutral density setting is greater than
1 (on a 1-4 scale), then the aperture setting should be less than or equal to 20 (on a 0-160
scale) which is about equivalent to f-stop 16. The QC program also performs a check to
make certain that the images in all 4 quadrants are always on scale. If the signal in
quadrants 1 or 2 is less than or equal to 15 (on a 0-255 scale) then an error is flagged in the
diagnostic file. If the signal in quadrant 3 or 4 is greater than or equal to 240, an error flag
is written to the diagnostic file. This check serves the double purpose of checking the flux
control algorithm and checking for proper camera on-scale bright response.
To check for proper camera dark response, several tests are made. A 3 x 3 block of pixels
in each of the lower left, lower right and upper right corners of the image is averaged. If
value in any of the corners is greater than 15 (0-255 scale) an error flag is
written to the diagnostic file. If the average pixel value in the left corner differs from the
average value in the lower right corner by more than 10, an error marker is written to the
diagnostic file. If the difference in average pixel values in the lower right and upper right
corners is more than 10, another error flag is written.
Data temporal continuity is determined using the time read from the header. If a minute or
more is missing, the time that should have been read is written to the diagnostic file as well
as the actual time read. When data is missing, it could be an indication that certain
components in the WSI may be malfunctioning, so the missing minutes are noted in the
diagnostic file. The ten minute image counts and one minute image counts are also used to
keep track of the data and insure that the data stream is uninterrupted. In the WSI field
program, the ten minute image count is incremented every time a ten minute image is
written to the Exabyte tape unit. The one minute image count is incremented every time a
one minute image is written to the Exabyte, with the exception of the one minute screen set
that is saved from each 10 minute image. Since this one minute data set is extracted from a
ten minute image set it is not used in the one minute count. So we know that there should
be 6 ten minutes images written per hour and 54 one minute images per hour. Any
deviations from these counts are noted in the diagnostic file. The normal timing sequence
is shown in Figure 4-1.
Hardware and software version numbers are extracted and written to the diagnostic file.
These numbers along with a separate hardware and software log help maintain version
control and tell us what system components and software components we have in the field
and when these components were installed. A sample of the hardware and software logs
are given in appendices E and F.
4.3 Tape QC Processing
For a full 7 day tape (12 hours per day), the QC run takes just under 5 hours.
More details on how to start a tape QC run are given in memo AV88-058t, included in
Appendix G. A summary of the hardware and software required to process the data are
given in Table 4-1.
Once the tape is run through READTPQC, the output diagnostic file is processed with the
program DGN. This program reads the diagnostic file and separates it into one diagnostic
file for each day on the tape. The DGN program also totals the error flags encountered in
each day's diagnostic file for quick reference. The errors summarized are:
1) Spectral filter setting errors
2) Occulter position errors
3) Camera dark signal errors
4) Onscale image signal errors
5) Missing minute errors
The last step in the quality control procedure is to review the diagnostic files for any errors.
If any of the above errors occur, or if any other peculiarities occur during the READTPQC
run, the appropriate WSI engineer(s) should be notified so that they may review either or
both of the diagnostic files or WSI tape.
5. TAPE ARCHIVAL
The tape archival procedure consists of 3 steps:
1) Apply final identification label to WSI tape
2) Perform tape backup
3) Update catalog file
Once the ID numbers and dates of data coverage have been established in the QC run, an
identification sticker with this information is applied to the tape.
At this time we are not performing tape back ups, however we will soon implement the
ability to copy a tape from one Exabyte tape cartridge system to another.
FIG 1 - 1
WSI MANAGEMENT PROCEDURES FOR
RAW DATABASE

TAPE CHECK IN
TAPE ARCHIVAL
QUALITY CONTROL
VALIDATIONS
FIG. 1-3
FIG. 1-2
FIG. 1-4
FIG 1 - 2
TAPE CHECK IN

RECEIVE TAPE FROM
FIELD STATION
NOTE TAPE ARRIVAL
IN APPROPRIATE
FIELD STATION
CONTROL LOG
YES
IS A PROBLEM REPORT
ATTACHED TO THE TAPE?
NOTIFY WSI
ENGINEER
NO
YES
DOES A TAPE
APPEAR TO BE
MISSING?
CALL FIELD
STATION
NO
COMPLETE CONTROL LOG
ENTRY WHEN QC IS
FINISHED
END
END
FIG 1-3
QUALITY CONTROL VALIDATIONS

CREATE DIAGNOSTIC
FILE
READ IMAGE HEADERS
READ MOGE HEADERS
PERFORM DIAGNOSTICS
"
YES
ANY ERRORS?
WRITE ERRORS TO
DIAGNOSTIC FILE
.......
......
NO
YES
IS IT LOCAL APPARENT
NOON?
73 - Save
SAVE LAN IMAGE
NO
NO
END OF DATA?
YES
REVIEW DIAGNOSTIC
FILE
YES
ANY ERRORS?
NOTIFY WSI
ENGINEERS
.............................
.............................
NO
END
FIG 1 - 4
TAPE ARCHIVAL

CREATE AND APPLY
FINAL TAPE IDENTIFICATION
STICKERS
PERFORM TAPE BACK UP
UPDATE CATALOG
REFERENCE FILE
END
Updating the catalog file is part of the archival process. A sample catalog file is given in
Appendix H. The catalog file is a reference file used to keep a record of what tapes are in
the WSI library. This file contains the following information:
1) Tape id number
2) Data start time
3) Data end time
4) Date
5) Software version number
6) Hardware version number
7) Diagnostic file name
This is the file one should use to locate a tape of interest.
6. STATUS REPORTS
Every two weeks the field station status chart is updated. This chart, shown in Figure 6-1,
indicates when all of the systems were installed and when the field team was at a particular
station for system updates or maintenance. This chart also shows the general quality of the
data and when any of the systems were down.
10.
Every month a QC and a tape check-in report are written. The QC report summarizes the
quality of the data and reports anything unique about images contained on the tapes. The
control log and catalog files are included with the report. A sample Tape QC report is given
in Appendix I.
The tape check-in report shows how many days each system was in the field along with the
number of days received here at MPL, the number of days QC'd, the number of days we
have back logged and the number of days the system was down. A sample Tape QC table
is shown in Figure 6-2.
7. LOCAL APPARENT NOON IMAGE ARCHIVE
The LAN image files are currently archived on 9 track tape. It is planned to start saving
these images using the Exabyte tape cartridge system. The latest LAN files are kept on the
tape processing computer in the appropriate directory.
8. HARDCOPY ARCHIVES
The control log, catalog and diagnostic files are all kept in a binder assigned to the field
station. The status reports are kept in a status report folder. The field station chart is
located on the wall next to the tape processing computers.
.......
......
9. COMPUTER ARCHIVES
All programs used in the tape QC process are located in the directory D:/TAPEQC. Each
WSI station has its own subdirectory under D:/TAPEQC, they are:
1) D:XTAPEQC/WSC
2) D:/TAPEQC/WSH
3) D:XTAPEQC/KAA
4) D:/TAPEQC/CLA
5) D:/TAPEQC/MAG
6) D:XTAPEQC/BAR
7) D:/TAPEQC/TBN
for C station
for HELSTF
for Kirtland
for China Lake
for Malmstrom
Malabar
Columbia to be named
These directories contain the control log, catalog, diagnostic files, LAN image files and
status reports for each station. See the attached for a sample of each of the above files.
10. FUTURE DEVELOPMENTS
This is not a final note of how we manage the WSI database. As our database grows and
we gain more experience, the way we maintain our database will change. Ideally as tapes
come in they are run through the QC process in the evening and the results are passed on to
the WSI engineers in the morning. The control log and catalog are then manually updated.
In the future the catalog files may be updated automatically during the diagnostic summary
run (using the software program DGN). This would insure that the catalog would always
be up to date and eliminate the possibility of typing errors. More columns may be added to
the catalog file to reflect different status conditions. For example, when a tape has been
processed to the cloud/no cloud decision level, an additional entry may be made in the
catalog to reflect this fact. An option in the DGN program may be added to allow the
option of plotting any of the diagnostic parameters versus time. For example the ability to
plot the camera dark signal versus time would quickly show us any anomalies in the WSI
camera operation. We may also add specific diagnostics such as histograms of sample
images. As these and more changes are made, this technical note will be updated.
11. SUMMARY
The database management of incoming whole sky imager data tapes (raw field data)
normally consists of three steps. Tape check-in, a manual procedure, includes tape
identification and entry into the control log. The second and most time-consuming task, is
quality control. This is accomplished primarily with a tape QC program, and yields
diagnostic files and sample images. The final step, tape archival, includes physical
identification and storing of tapes, as well as updating an additional catalog file. This
procedure has been reasonably effective in allowing us to monitor the incoming tapes and
the data quality.
SES
Table 4-1
EQUIPMENT USED TO READ WSI TAPES
HARDWARE
1) Texas MicroSystems Inc computer, Model 2001A (IBM PC-AT compatible)
2) Exabyte 8mm cartridge tape system, Model 8200B
3) ASC-88 SCSI host
4) Imaging Technology Inc. image processing board, Model FG100-1024-AT
SOFTWARE
The routines that drive the SCSI host, Exabyte and FG100 board are written in
assembly language. J. Fox wrote the assembly language routines that talk to
the SCSI host and Exabyte. The routines which set up the FG100 board were
also written by J. Fox. The programs that direct these routines are written in
FORTRAN. The routines used to read WSI tapes are READTPQC and DGN.
Figure 4-1
WSI DATA ACQUISITION & ARCHIVAL SCHEDULE
- TYPICAL HOURLY DATA SET
1
.
10
: 30
MINUTES
40
.
50
ARCHIVAL KEYS: Assume 12 hr day (LAN + 6 hrs)
B Once each 10 min : 2 red + 2 blue Images @ 512 x 512 :: 288 images/day @ 262k ea = 75.5 MB/day
© Once each 1 min : 2 red + 2 blue Images @ 512 x 66 :: 2880 images/day @ 33.8k ea = 97.3 MB/day
DAILY TOTAL: 3168 images/day 172.8 MB/day
(264 images/hr) (14.4 MBhr)

LAS

Figure 6-1
WSI FIELD STATION STATUS CHART
JAN FEB MAR
AMC wx of %%%%%%%%%%%%%
C-STA
APR MAY JUNE JULY AUG SEPT OCT NOV DE
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%
12 APA
3 JUN
21 JUN
INSTALLATION
MAINTENANCE
DATA QUALITY
DOWN
HELSTF
INSTALLATION
MAINTENANCE
DATA QUALITY
APA
25 APR
JUN
28 JUN
DOWN
KIRTLAND
INSTALLATION
MAINTENANCE
DATA QUALITY
17 MAY
20 JUL
1 AUG
DOWN
CHINA LAKE
INSTALLATION
MAINTENANCE
DATA QUALITY
22 JUN
DOWN
MALMSTROM
INSTALLATION
MAINTENANCE
DATA QUALITY
29 AUG
DOWN
COLUMBIA
INSTALLATION
MAINTENANCE
DATA QUALITY
DOWN
MALABAR
INSTALLATION
MAINTENANCE
DATA QUALITY
DOWN
TOTAL
GOOD DATA
= SPECIAL HANDLING REQUIRED
= SYSTEM DOWN
REMARKABLE PRODUCTS INC 187
= INSTALLATION/MAINTENANCE
DEFINITIONS
Installation/Maintenance - The entries here show when the WSI was
installed and when the field team was at the WSI site for
maintenance or upgrades.
Data Quality - The description of data quality has been divided into 2
categories. Good data means that no special handling routines are
necessary to read or process the data tape. The label special
handling required indicates that there may be some glitches or read
errors on the tape itself and a different software routine would need
to be used to read this tape. The special handling label could also
mean that a non-standard algorithm should be used for processing
the image for cloud/no cloud data. The control log should be
consulted for details concerning tape peculiarities.
System down - This column shows the periods where we have no
WSI data because the WSI system was down or the field station
monitors were not in to replace data tapes due to a holiday or
weekend. Also included in the system down category are tapes that
are deemed missing.

Figure 6-2
WSI DATA TAPE STATUS AS OF 30 SEP 88
C - STA
30 MAR 88
HELSTF KIRTLAND CHINA LAKE MALMSTROM COLUMBIA MALABAR
29 MAR 88 | 17 MAY 88 23 JUN 88 29 AUG 88
TOTAL DAYS IN FIELD
185
186
137
100
32
BI
TOTAL DAYS OF DATA
79
117
106
63
C
| FULL DATA DAYS (12 HR)
51
78
80
44
DI
PARTIAL DATA DAYS
28
26
19
4
E DAYS DOWN - NO DATA
48
15
FL
46
1
BACKLOG - NOT PROCESSED
| LATEST DATE RECEIVED
18 SEP | 2 SEPT | 15 SEPT
18 SEP |
9 SEPT
22 SEPT
H | DAYS NOT REC'D AS OF
12
l
28
15
21
8
A = B + E + F + H
. --.-.-.,
vol
. Los
...
e
roe.
.......
...
* Appendix "A
Sample Control Log Sheet
.
1
.
Station Ne: China Lake
Last update Monday, Octob1988
.
.
..... ..... ... ........... ..... .... ..............
...
..
..
....
.....
Only 10 mins. wOT
Of data on the tape...
..
Only 5 hrs of data
on this tape.
Power Failure.
Not received yet.
19
+
+
+
There was a power
SUMCE on Jul/88.
GEN
ESIS
EBAS
None.
.
Short Tipe.
Short Cape.
5/Aug/60
Q/400/88
Short Tape.
-
t
.
Short Tape.
12 Aug/13 Aug
CL4012. 1 - 2
Short Tape.
25/Aug/86
14 Aug/18 Aug
CL4015.-
Short Pape.
.
Short Tape.
29/Aug/80
24 Aug
No contrast in
Cloud Images,
failed.
.
1
11/Sep/88
14/Sep/83
Appendix B
WSI DATA SITE CONTACTS
1. C STATION
Name:
Mailing address:
Dennis Eschrich
SLCAS-AT-WS
White Sands Forecast Station
WSMR, NM 88002
(505) 678-3818, AutoVon 258-2605
Phone number:
2. HELSTF
.
Name:
Mailing address:
Hollis C. Zabriskie (Butch)
SLCAS AT-H
HELSTF Site
WSMR, NM 88002-5501
(505) 679-5107, Auto Von 349-5107
Phone number:
3. KIRTLAND AFB
Name:
Mailing address:
Lt. Josh Nall
AFWLWE
Kirtland AFB
Bldg #434, Room 102
Albuquerque, NM 87117-6008
(505) 844-0451, AutoVon 244-0451
Albe #434, Room
Phone number.
4. CHINA LAKE
Name:
Mailing address:
CPO Jeff Dille
CPOIC NOCD
Code 92
China Lake, CA 93555-6001
(619) 939-5470, AutoVon 437-5470
Phone number:
5. MALMSTROM
Name:
Mailing address:
Mstr. Sgt. Martin Torres
DET 5, 9WS
Bldg 360
Malmstrom AFB, Montana 59402-5000
(406) 731-3154, Auto Von 632-3154
Phone:
6. MALABAR
Name:
Mailing address:
Phone:
At Tracking Station:
Mr. George Nemetz
AFSTC/OS
(407) 723-3100, (407) 494-2862,
AutoVon 854-2862
Name:
Mailing address:
#1 Dr. Greg Taylor #2 Mr. Bud Parks
ENSCO, Inc.
445 Pineda Court
Melbourne, FLA 32940
Office: (407) 254-4122
FAX: (407) 254-3293
Phone:
7. COLUMBIA
Name:
Mailing address:
Mr. Bart Hagemeir
NWS Weather Facility
Columbia Regional Airport
Route 1
Columbia, MO 65201
(314) 443-1214
Phone:
Appendix c
Sample Diagnostic
(or .DGN) file
WSC049€, dan
DATE=25.JUL 36
TIME=15; 20:00
MLAN=16:10
LAN=19:10
PILAN=22:10
mai
1
15:20:00 Ten Minute Image count= 259
One Minute Image Count= 2125
13:20:00 Dark Signal Top Right:
Dark Signal Left Bottom: 00
Dark Signal Right Bottom: 06
Horizontal Difference:
Vertical Difference:
13:20:00 UD #1 Image Signal: 129.22
15:20:00 OD #2 110e Signal; 135.22
13:20:00 OD #3 Image Sional:
1.5: 20:00 OD #44 Iinage Signal: 50.59
Quad Time Is Occultor ND SP
#1 13:20:00 020
+
#3 15:20:04 020
#4. 13: 20:06 020
15: 50:00 Ten Minute Image Count: 240
One Minute Image count= 21.34
Ten Minute Image counts 241
One minute image count= 2143
13:50:00 Ten Minute Image count= 242
One Minute Image Cout
14:00:00 Ter Minute Inace count
One Minute Image count= 2161
14:10:00 Ten Minute Image count= 244
One Minute Image count: 2170
.
.
:
jani
na njeni
25
.
.
14:20:05 Ten Minute Image Count: 245
One Minute Image count= 2179
14:20:05 Dark Sional Top Right: 1.36
Dark Signal Left Bottom:
Darki Signal Right Bottom:
Horizontal Difference: .25
Vertical Difference: 1.11
17:20:05 OD #1 Inage Signal: 179.94
14:20:03 OD #2 Image Signal: 155.61
14:20:03 QD #3 Image Siqnal: 60.31
14:20:03 QD #4 Image Signal: 60.31
Quad Time Iris Occultor ND SP
1 14:20:03 020
016 0 0
1.
foto
puto
had
#3 14:20:06 020
016
#4 14:20:08 020
14:30:00 Ten Minute Image count= 246
One Minute Image count= 2188
14:40:00 Ten Minute Image Count 247
06 Minute Image count= 2197
14:50:00 Ten Minute Image count: 748
One Minute image count= 2206
15:00:00 Ten Minute Image Count= 249
One Minute Image count= 2215
Ten Minute Image count 250
One Minute Image Count= 2224
......... ---o...
..
'
N
C-2
comi.
DI
33
...
2
.
.
Day: Sia al 09ft BotCOM :
Dark Siqnal Right Bottom:
Horizontal Difference: 14
Vertical Difference: 2.47
15:20:03 OD # Image Signal: 192.64
15:20:03 OD #2 Image Signal: 161.47
15:20:0.5 QD #3 Image Signal: 67.31
15:20:0S OD #4 Image Signal: 63.22
Quad Time Iris Occultor ND SP
1 15:20:03 020
#2 15:20:04 020
031 0 1
#3 15:20:06 020
#4 15:20:08 020
031 0 3
15:30:00 Ten Minute lace count= 252
One Minute Image Count Z742
15:40:00 Ten Minute Lage count= 253
One Minute Image cout= 7251
15:50:00 Ten Minute Image count 254
One minte Image Count= 2260
16:00:00 Ten Minute Image Count: 255
One Minute mage count= 2265
16:10:00 Ten Minute Image count= 256
One Minute Image Count: 2278
.
.
.
1
.
Ci
ló: 10:00 Dart Signal Top Right:
5.78
Dark Signal Left Bottom:
Dark Signal Right Bottom:
1
1
4
4
0
0
hool
شمیم
hori
jotenie
Horizontal Diference
Vertical Difference: 3.39
16:10:00 CD #1 Im
16:10:00 OD #2 Image Signal: 93.39
16:10:00 OD #3 Image Signal: 38.25
16:10:00 OD #4 Image Signal: 35.36
Quad
( !." į5 OCCulto ND SP
#1 16:10:00 000
#2 16:10:02 000
044 0 1
#3 16:10:03 000
0.14
144. 16:10:05 000
044 0 3
.
. ----... --.
... ..... ....
16:20:03 Ter Minute Image count= 257
One Minute image count= 2287
16:20:03 Dark Signal Top Right: 5.61
Darki Signal Left Bottom: -11
Dark Signal Right Bottom: 50
Horizontal Difference: 39
Vertical Difference: 3,11
1
w ww
.....
wwwwwww
........
TO
.
16:Z0:03 00 2 Image Si903..:
16:20:03 OD #3 Image Signal :
16:20:03 QD #4 Image Sional: 36.1 1
Quad Tie Irje Occultor ND SP
#1 16: 20:03
#2 16:20:04 000
046
0.1
#3 16:20:06 000
#4 16:20:08 000
16:30:00 Ten Minute Image count= 258
One Minute (mene Count 2296
16: 40:00 Ten Minute Image count
Une Minute Image count= 2305
16:50:00 Ten Minute Image count= 260
One Minute Image count= 2514
Ten Minute Inace count:=
One Minute Image count= 2325
17:10:00 Ten Minute Image count= 262
One Minute image count= 2332
.......... -- -- -- --.-..--------
17:20:03 Ten Minute Image count= 263
One Miriuta lnage count= 2341
17:20:03 Dark Signal Top Right: 5.89
Dark Siqnal Left Bottom: 64
Dark Sional Right Bottom:
Horizontal Di Terence:
Vertical Difference: 4.55
17:20:05 OD #1 Image Signal: 120.11
17:20:03 OD #Z Image Siqnal: 102.22
17:20:03 OD #3 Image Siqnal: 41.28
17:20:03 OD #4 Image Signal: 40.61
Quad Time Iris Occulto" ND SP
#1 17:20:05 000
#2 17:20:04 000
#3 17:20:06 000
#4 17:20:06 000
061 0 3
17: 30:00 Ten minute Image count= 264
One Minute Iage count= 2350
17:40:00 Ten Minute Image count= 265
One Minute Image count= 2359
17:50:00 Ten Minute Image count: 266
One Minute Image count= 2368
18:00:00 Ten Minute Image count=
One Minute Image Count: 2377
18:10:00 Ten Minute Image count= 268
One Minute Image Count 2.386
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18:20:03 Ten Minute lage count= 269
One Minute Image Count= 2395
18:20:03 Dark Signal Top Right: 5.97
Darki Signal Left Bottom:
Dark Siqnal Right Bottom: 1.39
Horizontal Difference:
Vertical Difference: 4.58
18:20:03 QD #1 Image Sional: 122.00
18:20:03 QD #2 Image Siqnal: 105.97
18:20:03 OD #3 Image Signal: 41.92
18:20:05 OD #4 Image Signal: 41.83
Quad Time Iris Occultor ND SP
#1 18:20:03 000
#2 18:20:04 000
#3 18:20:06 000
#4 18:20:08 000
18:30:00 Ten Minute Image count= 270
One Minute Image count= 2404
min
i
jende
1
18:50:00
wwwwww
ng
1
ng
19:00:00
Ten Minute Image Count: 272
One Minute Image Count: 2422
Ten Minute image count= 273
One Minute Image count= 24.31
Ten Minute Image count= 274
One Minute Image count=
- -imit me 440
ng
19:10:00
+
1
X
-
wwwportowani
ut
19:10:00 Dark Signai Top Right:
11 13 7 10 7 8
6.83
to
Dark Signal Left Bottom:
1.08
Dark Signal Right Bottom:
1.81
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Horizontal Difference:
Vertical Difference: 5.03
19:10:00 OD #1 (age Signal: 124.11
19:10:00 QD #2 Image Signal: 107.92
19:10:00 OD #3 Image Signal: 33,44
19:10:00 OD #4 Image Signal: 43.17
Inforination For LAN
Quad Time Iris Occultor ND SP
#1 19:10:00 000
089 0 0
#2 19:10:02 000
#3 19:10:03 000 089 0 2
#4 19:10:05 000
... -- -- -- -- -- -- -- - -- --.-.--.-• -.------- ---
19:20:03 Ten Minute Image count= 275
One Minute Inage count= 2449
19:20:03 Dark Siqnal Top Right: 6.67
Darki Signal Left Bottom: 1.22
Darki Signal Right Bottom: 1.75
Horizontal Difference: 53
Vertical Difference: 4.92
19:20:03 QD #1 Image Siqnal: 125.4.4
19:20:03 OD #7 Image Siqnal: 109,33
19:20:03 OD #3 linage Signal: 44.75
19:20:05 OD #4 Image Signal: 44.03
Quad line Iris Occultor ND SA
#1 19:20:03
#2 19:20:04 000
3 19:20:06 000
#4 19:20:00 000
19:30:00 Ten Minute Image count= 276
One Minute Image count= 2458
19:40:00 Ten Minute Image count= 277
One Minute linage count 2467
19:50:00 Ten Minute Image count= 278
One Minute Image count= 2476
Ten Minute Image count= 279
One Minute Image count= 2485
mmoj general
1
One Minute Lace Count= 2194
C-5
............. ..... ...
... .....
.
prendo
20:20:05 Ten Minute Image count= 28)
One Minute Image Count= 2503
20:20:05 Dark Signal Top Right: 6.92
Darli Dal Left Bottom:
Dari Sional Rio BOTTOM
Horizontal Difference: 58
Vertical Difference: 5.1
ZO: 20:03 QD #1 Im
20:20: OK OD #
20:20:03 OD #3 mage Signal: 46.11
20:20:03 QD #4 Image Signal: 45.44.
Quad Time Tris Occultor ND SP
#1 20:20:05 000
bowie
--
-
foori
.
N
#3 20:20:06 000
#4 20:20:08 000
20:30:00 Ten Minute image count= 282
One Minute (m20e Count 2512
Ten Minute image counts 285
One Minute image count= 2521
Ten Minute Image COUD6* 284
One Minute lage count= 2530
21:00:00 Ten Minute (name Count= 285
One Minute Image Count= 2537
+
1.
One Minuts image Count- 2548
samo s
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....... ... ... ...- --- .......
...
1.
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21:20:05 Ten Minute Image count= 287
One Minute (maqe count= 2557
21:20:03 Dark Signal Top Right: 8.08
D=7k Siqnal Left Bot č017: 1.64
Dark Siqnal Hight Bottom: 2.39
Horizontal Difference: 75
Vertical Difference: 5.69
21:20:03 OD #1 Image Signal: 137.53
21:20:03 OD #2 Image Sigral: 115.25
21:20:03 OD #3 Image Signal: 48.78
21:20:03 OD #4 Image Signal: 46.81
Quad Tie Iris Occultor" ND SP
#1 21:20:03 000
121 0 0
#2 21:20:04 000
121 0 1
#3 21:20:06 000
#4 21:20:08 000
21:30:00 Ten Minute Image count= 288
One Minute image count= 2566
21:40:00 Ten Minute lnage count= 289
One Minuto (age count= 2575
21:50:00 Ten Minute image count= 290
One Minuto (age Count 2584
Ten minute Image Count = 291
One Minute Image Count: 2593
22:10:00 Ten Minute image count= 292
One Minute lage count= 2602
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LO
C
1
X
22: 10:00 Dark Sianei 100 Right:
il 16 11 10 10 9
8.56
3
5
13
13
7
7
7
4
10
10
10
1 1
Dark Si021 let B to Bottom:
www
C-6
w wwwwwwwwwwww.
SVAKO
...
WAKA
Dark Signa] Right Bottom:
3.19
SS AR
1
5
5
4
11
0
11
2
0
8
2
N
fi
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100
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one
jumang gang for
Horizontal Differences
Vertical Difference: 5.56
22:10:00 QD #1 Image Signal: 137.06
22:10:00 OD #2 Image Signal: 113.17
22:10:00 QD #3 Image Siqnal: 49.19
22:10:00 OD #4 Image Signal: 46.47
Quad Time Iris Occultor ND SP
1 22:10:00 000
#2 22:10:02 000
#3 22:10:03 000
134
#4. 22:10:05 000
------------- -... -- -- * •*. ... ... ... .. . -- -- --- --- --- --- --- ---
22:20:03 Ten Minute Image count= 293
One Minute Image count= 2611.
22:20:03 Dark Signal Top Right: 8.36
Dark Siqnal Left Bottom: 1.86
Dark Siqnal Right Bottom: 2.81
Horizontal Difference:
94.
Vertical Difference:
22:20:03 OD #1 Image Signal: 139.17
22:20:03 OD #2 Image Siqnal: 115.69
22:20:05 QD #3 Image Siqnal: 49.81
22:20:03 QD #4 Image Signal: 48.00
Quad Time Iris Occuitor NO SP
#1 22:20:03 000
136 0 0
#2 22:20:04 000
136 0 1
#3 22:20:06 000
156 0 2
#4 22:20:06 000
22:30:00 Ten Minute Image count= 294
One Minute Image count= 2620
Ten Minute Image count= 295
One Minute Image Count = 2629
Ten Minute Image Count: 296
One Minute Image Count= 26.56
23:00:00 Ten Minute Image count= 297
One Minute I:1130e count= 2647
23:10:00 Ten Minute Image count= 298
One Minute Image count= 2656
juni.
juni
tai
n
.
X
.
11
40
23:20:03 Ten Minute Image count= 299
One Minute Image count 2665
23:20:03 Darki Signal Top Right: 8.00
Darki Signal Left Bottom: 1.50
Darki Siqnal Right Bottom: 2.72
Horizontal Difference: 1.22
Vertical Difference: 5.28
23:20:03 OD #1 Image Signal: 131.75
23:20:05 00 #2 Image Signal: 200.89
23:20:03 OD #3 Image Signal: 47.67
23:20:03 OD #4 Image Signal: 86.31
Quad Time Iris Occultor ND SP
#1 23:20:03 000
151 0 0
#2 23:20:04 000
151 0 1
*3 73: 20:06 000
151
1
fundo todo
+
C-7
23:30:00 en Minute Image counts S00
One Minute Image count= 2674,
25:40:00 Ten Minute Image count= 301
One Minute Image count=
Ten Minute Image Count 302
One Minute Image count= 2692
00:00:00 Ten Minute image count= 303
One Minute Image Count 2701
00:10:00 Ten Minute Image count= 304
One Minute Image count= 2710
11
.
.
.
.
t
7
00:20:05 Ten Minute Image count= 105
One Minute Image Count= 2719
00:20:03 Dark Signal Top Right: 7.58
Dark Signal Left Bottom: 1.14
Dar! Signa] Richt Bottom: 2.39
podle
engin
an
Vertica) Diference: 5.19
00:20:03 OD #1 inage Signal: 100.11
00:20:03 OD #2 Image Siqnal: 197.03
00:20:03 OD #5 Image Gianel:
00:20:05 QD #4 Image Signal: :: .::
Quad Time (1"Occulk of ND SP
#1 00:20:03 020
#2 00:20:04 020
#3 00:20:00 020
#. 00:20:08 020
00:30:00 Ten Minute Inne Count=
One Minute Image count= 2728
00:40:00 Ten Minute Image count= 307
One Minute Tinage count
Ten Minute Image Count-
One Minute Image count= 2746
01:00:00 Ten Minute Image count= 309
One Minute Image count= 2755
01:10:00 Ten Minute Image count= 310
One Minute Image Count: 2764
01:19:00 Ten Minute Image count= 310
One Minute Image count= 2773
END TIME=01:19:00
* *
E
*
the
Spectral Errors
Occultor Errors
Signal Erfors
Minute Errors = 0
funcil and
.
"
*
*
MARINE PHYSICAL LABORATORY, P-001
of the Scripps Institution of Oceanography
San Diego, California 92152
Appendix D
Local Apparent Noon Computation
AV 87-0370
October 15, 1987
MPL File: 87.336
TECHNICAL MEMO
To:
R.W. Johnson and W.S. Hering
From: J.E. Shields
Subject: Motion of Occultor Arm
This memo discusses the required motion of the occultor arm. Two options
are given: a fixed 12 hour data period and a variable data period. The theory
is given in the appendix. For now Dick has decided to go with fixed 12 hour
days, because the occultor arm cannot currently cover the angles needed for
longer days.
1.
For a fixed 12 hour data period, we want to center these 12 hours around
local apparent noon. To do this, we would start at time t, with the
occultor at oº relative to the occultor axis, and rotate the occultor 15°/hr
for 12 hours. (We need to check the accuracy of the occultor transducer in
order to have this work.) Here time t is close to 6 am, with a correction for
longitude and the date-dependent equation of time. The time may be
calculated as follows.
t = 6 hrs - ASL 2 (Amin) - E +1 hr if daylight savings
(1)
In this equation, ASL is the zone meridian minus station meridian, where
zone meridian is 105° for mountain time, 120° for pacific. E is the
equation of time in minutes, given by
E = -106 sin L +596 sin 2L - 429 cos L / 60
(2)
where L =279° +.985 d and d =interval in days since 1 Jan 1988
(negative in 1987).
In summary, we start at a fixed position, but a variable time given by the
above equations. Table 1 shows sample start times (from the 73 almanac).
UNIVERSITY OF CALIFORNIA-(Letterhead for Interdepartmental use)
D2
AV 87-0377
Page - 2
MPL File: 87.336
's
.II. Variable Data Period
.
ll.
If we eventually go with a variable day, Wayne suggests we keep even hour
increments on day length. Again we would center the period on local
apparent noon. To do this, we would have to start at time t, at position p,
and continue for h hours, where t, p, and h are given by
t = 6 hrs - ASL 2 (4 min) - E (+1 hr) - hr
©
p =- 90° N15°
E
.
h = 12 + N
Û
where N is the data acquistion period (in hours) minus 12. The value of N
would be stored in tabular form as a function of date. We would need to
calculate the values for each latitude. A sample of computed N vs date
values are given for 35°N latitude, for the first part of the year, in Table 2.
If we decide to go this way I can generate the needed numbers.
Janet
Janet Shields
cc: CLD Group
D3
AV 87-0377
Page - 3
MPL File: 87.336
Appendix: Theory
The required motion of the occultor arm is reasonably simple, because we are
using an equatorial mount. Attached you will find an extract from Brown, which
describes the daily apparent path of the sun. Essentially the plane of this diurnal
path is tilted according to latitude, and the plane moves north and south according to
season.
Our assembly allows for the tilt of the diurnal plane by tilting the axis of rotation
of the occultor arm. The seasonal variation, characterized by the solar declination, is
allowed for by using different length arms.
Because our axis of rotation is in fact the polar axis of rotation for the earth, the
apparant motion of the sun wrt (with respect to the axis is uniform, moving 180° in
12 hours, or 15° per hour. (Thus, we need to move the occultor arm 15° per hour.)
This is all a bit hard to visualize without the occultor, but perhaps a bit of
description can help explain why the 15° /hr works. Note that when the 0° latitude
setting and 09 declination arm are used, and the occultor is moved 180° in 12 hours, it
will start at 0° elevation go directly overhead, and end at 0°. When the latitude is
changed and the same arm is used, the path will start and end at 0° elevation, but the
occultor will not go directly overhead because the plane is tilted. When a longer arm
is used, for summer and positive declination, the occultor starts and ends
automatically above the horizon if it is rotated a full 180° about the polar axis.
!
Given the 1 r rotation wrt the polar axis, the next question is when or where
to start the occultor. The earth's path of revolution about the sun is not quite
circular. As a result the position of the sun at a given time such as noon varies during
the year. This may be characterized as a variation in the time of solar noon.
The time of maximum sun elevation is defined as local apparent noon; this time
varies from standard noon by +15 minutes during the year. This difference is given by
the equation of time, shown in the attached plot. An extract from Brown on equation
of time, shown in the attached plot. An extract from Brown on equation of time and
the conversation of clock time to local apparent time is included. To calculate local
apparent time, first take standard time (ST), add 4 minutes per degree that a place is
east of its zone meridian (or -4 ASL for ASL west of meridian), add the equation of
time (E) and substract an hour if it's daylight savings.
ST + 4 ASL + E (-1)
Thus, to have a period of 12 hours centered around local apparent noon, we need to
start 6 hours before local apparent noon, thus we need to compute the standard time
corresponding to 6 am local sun time, as done in Equation 3.
I took the formula for equation of time from the 1988 Astronomical Almanac.
ence is attached. We only need about 1 minute accuracy (actually 4 minutes
is ok), so I eliminated terms in the equation with maximum values less than 20
seconds. Similarly, reducing the terms 278.895 to 279 and .9856478 to .985 introduce
D4
Page - 4
MPL File: 87-336
only a second or so of error, and using integer rather than fractional days introduces
about 5 seconds error. (Wayne, I'd appreciate your checking this). Thus the terms
shown in the reference are reduced to those given in Equation 2-3.
Finally, to allow for longer days, as in the variable length day option, if we use
even hour increments, we figure out the date at which the day length exceeds say 13
hours (from the nautical almanac or some other source). After that date then, we
would start a half hour earlier than the normally, computed time, with the occultor
rotated 742° lower, and go for 13 hours. This is what equations 3 through 5 should do
for us.
I assume you will alert me to any oversights.
D5
AV Oi-ojis
Page - 5
MPL File: 87-336
Table 1
Start Time
E
Start Time
Long = 105 100
110
Date
1/1
1/16
2/1
2/16
3/1
3/16
4/1
4/16
6:23
6:30
6:34
6:34
6:03
6:10
6:14
6:14
6:13
6:09
6:04
6:00
5:57
5:56
5:58
6:00
5:43
5:50
5:54
5:54
5:53
5:49
5:44
5:40
5:37
5:36
5:38
5:46
6:33
6:29
6:24
6:20
5/1
6:17
5/16
6/1
6/16
6:16
6:18
6:20
DO
Page - 6
MPL File: 87.336
Table 2
Variable Day Parameter
Length
of Day
(hrs)
Date
Range
9-10
10-11
11-12
12-13
13-14
Jan 1-Jan 11
Jan 11-Feb 18
Feb 18-Mar 18
Mar 18-Apr 14
Apr 14-May 14
... Om Now
D7
Attachment 1
TIME
Several kiods of time conventions are used is be world coday.
Some communities bave no clocks and measure or otimale cirae
by ebe sua ood stars Saudi Arabia keeps suo time and sis clocks
cach day at sundown. Most countries keep one time throughout
"ibeir domaio. lo some couplrics clock time approximates sun rime
· bue ia ocher countries ibere are areas in whicb clocks differ from
the suo sime by an hour or more Sioce the cbaru in this book are
based on true suo time, some explaоation is pecessary. In the United
Sures, clock time iad sua rime ao diier as much as two hours,
alebough tbe average diference is much less .
Briedy, tbe conversion of clock sime to local apparent time
in de Voited States is made us follows:
..
:
:
....
: :...
Strodard time plus emioures per degree that a place is our
of its zooe meridian equals mein solas time,
.. ........
of . ....
Scaodard time minus 4 minules per degree that a place is weer
of its zooe meridian equals mean solar time
...*
iid :19 :::
Mero solar cime plus equation of sime quals loal appareas
time (true sun rime). . .... . .
Daylight saving sime (when it is in effered coinus 1 hour equals
standard sime
• Equation of time may be richer a pomine or negative quantity. The
quantity should be added algebraically, ten ming the appropriate sisa
(Sto serion vided Equation of Tirse) .
:
:
Equation of Time
Clock-sime schedules assume that (1) every day stars the i
moment after midnigh, with the sun at its lowest point, (2) the sun .
moves with perfect regularity around the sky every day of the year,
• (3) che sun reaches the highest poine in the sky ar noon each day by :
the clock, and (4) every day has 24 hours of equal length. Actually,
most of these assumprions are not quite true. During the course
of a year's time, the sun goes through four phases, tavo of slowing .. .
down and iwo of speeding up. As a result of this irregularity, the ľ
perfece sun cime schedule. suſſers. The cardiness accumulates day' .
after day at onc season, so that the true sun is nearly 14 minutes :
'behind ius average schedulc before it gets back to normal. Then it
gous ahead by about four minutes, then behind by six, theo ahead
again by a bit over 16 minutes. Consequently, a perfectis regular
clock, locared on one of the time-zone meridians, will kccp mcan
solar time, but this will diffce from true solar time by any amount
up to 16 minutes during the course of a year.
As starod previously, the average or mcan sun schedule gives
mcan solar sime, and most time zones use the mean solar cime of
the zone meridians for their zone time. To adjust for the irregu.
Lariiy in the sun's schedule, a number of minutes, known as the
cquation of time, is introduced. By definition, the equation of time
is thac quaocity which, when added algebraically to mean solar
rime, will give true solar rime. This quanriry changes from day
to day and may be either negative or positive. When the sun is
ahead of ivs average schedule, the equation of time is positive;
when the sun is behind ils average schedule, the equation of time
is negative. Values for a mean year may be read from the appropriace
Curve in figure 3. Values more precise for any given year and hour
may be obtained from the current issue of the American Maurical
Almanac compiled and published by the U.S. Nanal Observatory,
Washington, DC
A-7
Attachment 2 .

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ATT ROVER
--
TOM
ONIGHT
.

COM TOHO Out
----------

--

MAA. Ano
CO
JUNE
• 40°N L
.

marian

OON
31
Sul. 23
NAN. 21
SEN
Veri
21
OLC 1
.
*
ANNUAL ILLUMINATION
lo studying the illumination throughout a year at a given place, This process can be visualized in another way: Philadelphia,
ic bas been found very helpful to visualize the apparent path of the i Pa. lics 10° north of the equator. As a consequence, the apparent
suo during a year as that place. The yearly pach of the sun is pach of the sun, the diurnal, makes an angle of 50° wish the
divided into daily paths (diuraals) for convenience. The sun's daily Philadelphia horizon. On 21 March, the sun riscs approximately
pasb relative to the horizon follows three simple laws:
due cast 2 approximaccly CGOO hours truc sun time, roches due
pas laws..
.
1. The plane of the diurnal makes an angle with the horizon.
south ar noon, sun rime, at an altitude of so', and sees approxie
marely duc west ac 1800 hours, roue sun cime By I May, she sun's
of a place equal to the place's co-lacicude ongo minus lacicude).
declination is 15® nonh. On this day, the sun rises about 10° norih
2 de any given place the diuroal planes a. allel through.
of case at approximately 0504, true sun cime, reaches a noon altitude
oue che year.
3. As she declination progresses from 23.5° S to 23.5°N and
of 65°, and sets around 1854 hours about 10° north of wese Note
rcturns, the diurnal also progresses along an axis which
that the whole diurnal is shifted north and up, so that the noon
passes through the place and is parallel to the polas axis
position of the sun is higher than it was on 21 March by the amount
of the carth.
of the porch declinacion The highest sbe sua cver geu ia Phila.
delphia is 73.5°. This is reached on 21 June, when the declinarioa:
Figures 7 through 10 show the progress of the diurnal throughout is 23.5* sorrb. The lowest noon position is 26.5°, when the decliaza
the year in four differené locations
cion is 23.5° south, on 21 or 22 December.
On figure 8, note that on the swo daces, 21 March and 23 The yearly illumination af four selected lacicudes the equator,
Soprembes, not only does the horizoa divide the diurnal into equal 40°N, 765°N, 2od che Nonb Pole is discussed in the ear four
day and nighs (cquinox) but the diurnal cues the horizon equally
berweca north and south. Hence, when the declioarioa is oorth, iba
diurnal moels obe borizon to the norrb of ebe E.O line Whea che
declination is souch, she sense is crve
ܘܘei
DECLI:JATION OF SU:
JAPID EQUATION OF TIME
JAN.
NO.
MAR.
16,24 . 16. 361 . 16. 16 ! 6
APR.
16
MAY
. 16
JUNE
36 10:16
ony
210
MON
161
JULY
16
16 16
16
26 11
16
16 16
16
16 16
16
16 15
15
25
T
.
.
.
.
ALA
..
.
SAME (S)
NORTH DECLINATION
for Northern latitudes this
declination is SAME (S)
for Southern lotiludes this
declination is CONTRARY.CO
DICLINATION IN DIGREES
SOUTH DECLINATION
for Northern lolitudes this
declination is CONTRARY (C)
for Southern lolitudes this
declinolion is SAME (5)
CONTRARY ICE
IIIIIIIIIIIIIIIIIIIIII
DECLINATION OF SUN,
SEQUATION OF TIME
*
. UHIAIN
IL
0
Figure 3. Decllosdon of sua and equalloa ol ime.
Attachment 3
.
.
.
60



.*..
?"
D10
Attachment 4
Astronomical Alnaroc
SUN, 1988
.
NOTES AND FORMULAE
.
!
Apparent ecliptic coordinates of the Sun
The apparent longitude may be computed from the geometric longitude tabulated on pages
C4-C18 using:
apparent longitude = tabulated longitude + nutation in longitude (Ay) - 20".496/R
where ay is tabulated on pages B24-B31 and R is the true distance; the tabulated longitude is
the geometric longitude with respect to the mean equinox of date. The apparent latitude is equal
to the geonietric latitude to the precision of tabulation.
.
Elements of 1
The mean ele
Longitude of the
on the ecliſ
Inclination of the
: on the ecli;
The mean positi
right ascen
.
.
*
Sidereal period
Mean synodic pe
These data ar
on the Sun, p. 2
#W
.
.
3
Time of transit of the Sun
The quantity tabulated as "Ephemeris Transit" on pages C5-C19 is the TDT of transit of the
Sun over the ephemeris meridian, which is at the longitude 1.002 738 AT east of the prime
(Greenwich) meridian; in this expression AT is the difference TDT-UT. The TDT of transit of
the Sun over a local meridian is obtained by interpolation where the first differences are about
24 hours. The interpolation factor p is given by:
p=-1 + 1.002 738 AT
where is the east longitude and the righthand side is expressed in days. (Divide longitude in
degrees by 360 and AT in seconds by 86 400). During 1988 it is expected that AT will be
about 57 seconds, so that the second term is about +0.000 66 days.
The UT of transit is obtained by subtracting AT from the TDT of transit obtained by
interpolation.
Heliographic
The values o
eastwards from
the central poin
semidiameter art
If pi, o are th
the disk of the S
on the solar surf
where S is the s
of the disk towa
The formula
Other feature on
.
Equation of time
The equation of time is defined so that:
local mean solar time = local apparent solar – equation of time.
To obtain the equation of time to a precision of about 1 second it is sufficient to use:
equation of time at 12h UT = 12h - tabulated value of TDT of ephemeris transit.
Alternatively it may be calculated for any instant during 1988 in seconds of time to a
precision of about 3 seconds directly from the expression:
equation of time = -105.7 sin L + 596.2 sin 2L +4,4 sin 3L - 12.7 sin 4L
429.1 cos L-2.1 cos 2L + 19.3 cos 3L
where L is the mean longitude of the Sun, given by:
L = 278°.895 + 0.985 647 d
and where d is the interval in days from 1988 January 0 at Oh UT, given by:
d = day of year (from B2-B3) + fraction of day from Oh UT
where L is meas
360° in the direc
the Earth.
19
Geocentric rectangular coordinates of the Sun
The geocentric equatorial rectangular coordinates of the Sun are given, in au, on pages
C20-C23 and are referred to the mean equator and equinox of J2000.0. The x-axis is directed
towards the equinox, the y-axis towards the point on the equator at right ascension 6h, and the z.
axis towards the north pole of the equator.
These geocentric rectangular coordinates (x, y, z) may be used to convert an object's
heliocentric rectangular coordinates (xo, Yo, 20) to the corresponding geometric geocentric
rectangular coordinates (Eo, no, 5o) by means of the formulae:
so = xo + x no = Yo + y 5o = 20 to 2
See pages B36-B39 for a rigorous method of forming an apparent place of an object in the solar
system.
Number
1797
1798
1799
1800
1801

At the date
the prime meric
w
*
*
TV
..
wt
-
situation op
W
w
.
th
20th
W
:
.
..
WWW
.
.
m
*
.
yu
WA
.
MARINE PHYSICAL LABORATORY P-001
of the Scripps Institution of Oceanography
San Diego, California 92152-6400
Appendix E
Sample Hardware Log
Me
AV88-040t
15 Aug 88
Technical Memorandum
To:
R. W. Johnson
From:
J. E. Shields
Subj:
1
Field Unit Status, August 88
Since the most recent field unit status memo on 6 July (AV88-026t), the following
changes have been made.
20 July 88
At Kirtland, the camera had been showing full dark values around 140, and been
brought home 13 July. A new camera was installed on 20 July. A new flux threshold was
determined.
Also new clocks (and com Ports) were installed at Kirtland, HELSTF, and C-station,
and surge protectors were added to all 3 stations. The new components are given for units
1 v 2D, 2 v 4C, and 3 v 2A, attached.
1 August 88
The CPU and FG100 were swapped out at Kirtland because the computer had hung
up. It turns out the BIOS on the CPU had gotten scrambled. The components are given
for Unit 3 v 2B, attached.
General Note:
It turns out that when the occultor motor subassembly was changed (Units 1 v 2B, and
2 v 4A), the occultor was replaced, so we do not know which occultor units are at those
sites.
JES:cr
Attachments
ter
E-2
S 100 GOCLETIts the pererai charides to the ED Camera Vield
Tiits. The charges it's specific corporerits are listed in the
Field Unit ajoin Coinpererts" tables Best Ori file.
New Entry in 108
1
FIELD UNIT C-STA
Versier 18, 16 Feb 88: ero AV68-075t
Fielded 16 Feb 85, at C-Staticri. Filter changer hele had been
ei:1 arged from ,042, to unknowry size. A11 other comporterts standard
at the time. Collected data were abnormal, as listed in
BV88-203t. Version 1 software iristalled, See 50ftware 103.)
FIUM Coritirol used threstolo 32300.
Version 1B, 29 Marm : MEINO AV88-0050
Charged exabyte Om 35 parch 98. Due to failure of
Login told inodors :fieis, A150 iristalled software Version 2.
Versioi 22, i39; 58: vend AV33-0055
Chariced marisducer head om! 12 April 88, Sirice filter
champ2 scretines skipped.
Nem transducer tas fiiter charger les drilled to , 270, MG
2018m. hargas. Systir. 5704 be morinal, except that no new
Fium 200ml 56cid as detersiried.
Version ZE, 5 June 88: ein0 SV38-226t
Exabyte wild and disc Failed arc were replaced.
1775alied EW scrowa: 5 see AV88-2186.
Bize made her gwiris updates:
a) Fisheye lens joider, charged to 3 set screws Famous stability.
O NEW 3!1135r. added to filter ctiargem board to preverit skipping,
fiite;" charger takem apart to realigri wheel.
Ci New timarisilatory stages in camera tousing
air Cocuitorijas ucit cim subassembly changed to additional shaft
Fiats, added pick-up points to prevent mot dig ilt.
eCharged purge system, intention is to keep it sealed.
Added dessicarit jms WLarid WCH. After a few days
pirassurization failed with this fix..
Versici 2C, 20 Juille 53; Meng 9183-0250
epiace bracker: 2xabyte12mged purge system to prepare
itirips. Which seal better.
* VESIST! 20, 20 July gö:
Put in ciock arie Clockport, new software to maridle sane.
cleared filters and aligned, replaced coculteir, ssened
150524 and Earlier 120 pegged seyorid 132 er AC sad 168.
Sealed come with RTV to prevent wačem. Baks.
porno B
V
porno
FIELD UNIT
ELSTA
Versiori i, FED 88: DVB-0815
Used in-house, Fed 55 and Mar 38.
Versiere, 29 Mar 88: AV98-0054
Freideg 29 March 68.
Dimens tinci? Version in the TIEW EPROM installed ir! Exabyte.
Filter changer hole size. 05.3", grenit 5.1.1 pped during
50ipping. Flu* ceritni hresh01d 29002.
Version 2E, 12 pr 58: mero 183-225t
0? 12 pri 35. charged Exabyts because it failed
tai mesec
ape. Also in Ealicred camera.
Versici 32, 26 Ser 58: Mero 9199-2144
Replaced video carrera due to failure of videc preard.
NEW IX corrI threshold mot determined.
Version 38. :3 ay 83: Merna AV58-14t.
m..? .go.com.mm vas, no m. bos, vodo o
en oo many compare to Tea.
.
:.:
E-3
:
:
..
?
.
SEO and Focused camera.
52 =O SOTTH21E: ST AVSE-
30.
0
1
0
ut if !
ct
t
I
3 :512y1295 01 can charged 03 50 50
Cm Stability.
B) NEW
added to Pilten Dharger Card to DIVE: skipping,
item charige;takEri apart to rea?ior wheel.
Olew trarsi latcimy stages in Camera Housing
din Occultcm motor Slibasseindly changed to additional staft
flats, added fiskemu foirts to prevent inatom tilt.
e) Charged purge systein, stays sealed We arid added dessicant
18 WLH and WCH.
Versiot 46 28 Jure 83: Meino AV88-0260
Replaced exabyte Petro ich had failed. New exabyte pas 'EW
inco2 B motors.
Charged purge system to pindpare fittings.
ein Versior 4C, 20 July 68:
Put in FiOCK and clock point arid new software for clock.
Cleared Filters and realicred. Sealed done witti RTV
to preverite water leaks.
U
FIE_) UNIT 3 KIRTLAND
Version 12, 17 Yay 38; Hero AV99-2140
fizicer 17 Yay 68. irt.270 DFB, New Mexico. Charged
Ionic Oil Filter Charger Carol Circuit. Also new styie
Stres Sa Camera housing Y translation plates, FIV
Cartneret 315 2947. Changed 71% control alacritain
to STECK Syte V3!Es 1255 ther. 40, rather than 30, tc
help reclude ea.com awr Overcast cases being too daink
1PE Blue,
Varsin 15, 20 JU17 96: YencAVSU-J25t
Replaced exabyte with YW OVE withi new mode motorns.
101 Exabyte was working, but had did notors.)
Added dessicarit, arid purge syste?ng including proparle
Fit :195.
Charged Fisheye 1995 CICEI to 3 set screws. Unlit already
tiad Lipdon es marido discussed in Unit 2 Vers 4A. Did
mot raFocus; t:9d to keep fisheye lens spacing fixed,
ie tried to get 1ers L1 to 12 spacing back to where it was.
Versiori 2A, 20 July 88:
Replaced transducer, because Camera Full dark level
had one up @Ver. 120. The grobiern was tenperature
Serisi V DUH 511. posrert Whier: cool. 15C Systein
deve1982 wae sak during a bad storin. New systein
has come sealed with #7V. SLX Cort;0. Freshold is
07. ivs it
*
Version 28, August 88:
Replaced Cabcard aria G100 board, because computer, tad
了​? in Fatt was a Scie: Nics it ,
or
FIELD UNIT 4 CHINA LAKE
ole Versici? 2E une se: Emo 789-0264
Field20 2 urte 58, Chira Lake, Ca. This unit tad
updates through rent icred in unit 2 vers 4 above.
1'520 250 CRDical Fiber rather thari 100 ft videda
Status Playmina.
I'll
JUJW.J.MIWILLIWIWwwwww.worldcatMahiwwwwwwwwww
O
wwwwwwwwwww
w wwwwwwww
E-4
FIELD UNIT #1 VERSION 2D MAJOR COMPONENTS
Changed 20 July 88, C-station
Date: 15 Aug 88
AV88-040t
Sensor Components
Item
Ident
Item #
(Table A)
Changed From
Previous Version
Sun Occultor
Filter: 4.0 ND
Filter: 4.0 ND (Spare)
Wx- Proof Lens Housing
Fisheye Lens
Filter Changer
Spec. 1 (blue)
Spec. 2 (red)
Spec. 3 (blue)
Spec. 3 trim (0.5)
Spec. 4 (red)
Spec 4 trim (0.5)
ND 1 - none
ND 2 (0.3)
ND 3 (0.7)
ND 4 (1.0)
Wx- Proof Cam Housing
Video Camera
OCC-03
M-51010-01
M-51010-02
WLH-03
FL-03
FC2
B-57330-07
R-57610-07
B-57530-08
NI
R-57610-08
NI
Bu
N-50810-05
N-50821-04
N-50830-04
WCH-03
730-87345
.
18
Control Components
Item #
(Table A)
Changed From
Previous Version
Item
Ident
17
Accessory Control Panel
TM Computer
Seagate Hard Disk
Exabyte Streamer
ACP-01
TM 1955
133988
4973
E-5
FIELD UNIT #1 Version 2D (cont.)
Date: 15 Aug 88
AV88-040t
Boards (Slot #)
Video Color Card (1)
Hayes Modem (2)
DIO 96 (3)
CPU & Co-proc (5)
FG 100 (6)
Hd. Disk Control (8)
External Drive (9)
SCSI Host (10)
Com Port
Keyboard
External Disk
Sony Monitor
Clock Radio
012185
8728
86A1543
1819
HKM389
WD1003-RA2
NR
NR
A0184802
TMI 4
26-5033091
201932
06-76836
15
Peripheral Components
Item
Item #
(Table A)
Changed From
Previous Version
Ident*
NI
NI
Stand and Shroud
Cable Set
· 19" Rack
Rack Slides
Pedestal
Air Conditioner
Heater
NI
NI
NI
NI
NI
*NI = No Ident applied, NR = Not Recorded
E-6
FIELD UNIT #2 VERSION 4C MAJOR COMPONENTS
Changed 20 July 88, Helstf
Date: 15 Aug 88
AV88-740t
Sensor Components
Item #
(Table A)
Ident
Changed From
Previous Version
Item
20
Sun Occultor
Filter: 4.0 ND
Filter: 4.0 ND (Spare)
Wx- Proof Lens Housing
Fisheye Lens
Filter Changer
Spec. 1 (blue)
Spec. 2 (red)
Spec. 3 (blue)
Spec. 3-trim (0.5)
Spec. 4 (red)
Spec 4 trim (0.5)
ND 1 - none
D 2 (0.3)
ND 3 (0.7)
ND 4 (1.0)
Wx- Proof Cam Housing
Video Camera
NR
M-51010-03
M-51010-04
WLH-02
FL-02
FC 4
B-57530-01
R-57610-01
B-57530-02
N-50812-01
R-57610-02
N-50812-03
N-50810-01
N-50821-01
N-50830-01
WCH-02
716-87059
Control Components
Item #
(Table A)
Changed From
Previous Version
Item
Ident
17
Accessory Control Panel
TM Computer
Seagate Hard Disk
Exabyte Streamer
ACP-02
TMI 2039
147136
4972
B-7
FIELD UNIT #2 Version 4C (cont.)
Date: 15 Aug 88
AV88-040t
Boards (Slot #)
Video Color Card (1)
Hayes Modem (2)
DIO 96 (3)
CPU & Co-proc (5)
FG 100 (6)
Hd. Disk Control (8)
External Drive (9)
SCSI Host (10)
Com Port
Keyboard
External Disk
Sony Monitor
Clock Radio
NR
8728
86A1406
1714
HKM369
368644
7205
75021
A0184911-A
A1612
26-5033090
2018930
08-71287
Peripheral Components
Item #
(Table A)
Changed From
Previous Version
Item
Ident*
NI
Stand and Shroud
Cable Set
19" Rack
Rack Slides
Pedestal
Air Conditioner
Heater
NI
NI
NI
NI
NI
NI
*NI = No Ident applied, NR = Not Recorded
E-8
FIELD UNIT #3, VERSION 2A, MAJOR COMPONENTS
Changed 20 July 88
Date: 15 Aug 88
AV88-040t
Sensor Components
Ident
Item #
(Table A)
Item
(Taone
Changed from
Previous Version
Sun Occultor
Filter: 4.0 ND
Filter: 4.0 ND (Spare)
Wx- Proof Lens Housing
Fisheye Lens
Filter Changer
Spec. 1 (blue)
Spec. 2 (red)
Spec. 3 (blue)
Spec. 3 trim (0.5)
Spec. 4 (red)
Spec. 4 trim (0.5)
ND 1 - none
ND 2 (0.3)
ND 3 (0.7)
ND 4 (1.0)
Wx- Proof Cam Housing
Video Camera
OCC-03
M-51010-01
M-51010-02
WLH-05
FL-05
FC06
B-57530-11
R-57610-11
B-57530-12
NI
R-57610-12
NI
N-50810-07
N-50821-06
N-50830-06
WCH-05
638-8669
18
Control Components
Item
Item #
(Table A)
Changed from
Previous Version
Ident
Accessory Control Panel
TMI Computer
Seagate Hard Disk
Exabyte Streamer
ACP-04
1944
120434
4976
E-9
FIELD UNIT #3, VERSION 2A (cont.)
Date: 15 Aug 88
AV88-040t
Item #
(Table A
Changed from
Previous Version
Item
Ident
Boards (Slot #)
Video Color Card (1)
Hayes Modem (2)
DIO 96 (3)
CPU & Co-proc (5)
FG 100 (6)
Hd. Disk Control (8)
External Drive (9)
SCSI Host (10)
Com Port
Keyboard
External Disk
Sony Monitor
Clock Radio
13946-454
A05400963591
86A1544
1986
HKM083
968607
7205
2886
A0331352-A
12522-454
4865-5029688
2012850
07-63933
Peripheral Components
Item #
(Table A)
Ident
Changed from
Previous Version
Item
NI
Stand and Shroud
Cable Set
19" Rack
Rack Slides
Pedestal
Air Conditioner
EEEEEE
Heater
*NI = No Ident applied
GWwwowth
E-10
FIELD UNIT #3, VERSION 2B, MAJOR COMPONENTS
Changed 20 July 88
Date: 15 Aug 88
AV88-040t
Sensor Components
Item
Item #
(Table A)
Ident
Changed from
Previous Version
OCC-03
M-51010-01
M-51010-02
WLH-05
FL-05
FC06
B-57530-11
R-57610-11
B-57530-12
Sun Occultor
Filter: 4.0 ND
Filter: 4.0 ND (Spare)
Wx- Proof Lens Housing
Fisheye Lens
Filter Changer
Spec. 1 (blue)
Spec. 2 (red)
Spec. 3 (blue)
Spec. 3 trim (0.5)
Spec. 4 (red)
Spec. 4 trim (0.5)
ND 1 - none
ND 2 (0.3)
ND 3 (0.7)
ND 4 (1.0)
Wx - Proof Cam Housing
Video Camera
NI
R-57610-12
NI
N-50810-07
N-50821-06
N-50830-06
WCH-05
638-8669
Control Components
Item #
(Table A
Ident
Changed from
Previous Version
Item
Accessory Control Panel
TMI Computer
Seagate Hard Disk
Exabyte Streamer
ACP-04
1944
120434
4976
E-11
FIELD UNIT #3, VERSION 2B (cont.)
Date: 15 Aug 88
AV88-040t
ek
Item
Item #
(Table A)
Changed from
Previous Version
Ident
Boards (Slot #)
Video Color Card (1)
Hayes Modem (2)
DIO 96 (3)
CPU & Co-proc (5)
FG 100 (6)
Hd. Disk Control (8)
External Drive (9)
SCSI Host (10)
Com Port
Keyboard
External Disk
Sony Monitor
Clock Radio
13946-454
A05400963591
86A1544
3969
HKM1234
968607
7205
2886
A0331352-A
12522-454
4865-5029688
2012850
07-63933
Peripheral Components
Item
Item #
(Table A)
Changed from
Previous Version
Ident
NI
NI
NI
Stand and Shroud
Cable Set
19" Rack
Rack Slides
Pedestal
Air Conditioner
Heater
NI
NI
NI
NI
*NI = No Ident applied
Appendix F
Sample Software Log
10 JUN88
AV88-0185
Technical Memorandum
To:
From:
R. W. Johnson
J. S. Fox
Subj:
Current status software at White Sands Missile Range,
HELSTF and C-Station New Mexico
The Whole Sky Camera system has the following changes to the system
software.
The table below outlines the changes, to the best of current knowledge.
1
CHANGE
I
PURPOSE/REASON
...
....
I PASSING
I VARIABLE
I OKPIX
I THIS IS USED IN THE FLUX CONTROL CALLS BEFORE IT WAS
I HARD WIRED INTO THE SUBROUTINES SO EVERYTIME WE
I CHANGE SITES OR SENSOR WE HAD TO RECODE THE CALLS
I NOW WE CAN CHANGE IT IN THE CALLING PROGRAM.
I Z-TIME
I CHANGE FROM LOCAL TIME TO Z-TIME, THE FOLLOWING
I SUBROUTINES WERE EFFECTED OCSTH ,OCSTC (PASSES START
I TIME), OCSET, CHANGED OCCULTER TRACKING TO WORK WITH
I 2-TIME.
I Z-TIME AT START UP IS DISPLAYED IN HOUR/MINUTES
I RESTART
I CHANGES
I IN THE EVENT OF A NONSTANDARD RESTART THE OCCULTER
I IS RESET BY THE CALL OCLONG, BEFORE WE ZEROED IT. NOW
I WE RESET TO CORRECT LOCATION. WE DO THIS BEFORE TAPE
I IS RESET TO GIVE THE TAPE TIME FOR IT'S SELF TEST.
I IN PAST VERSION THE TAPE WAS FIRST.
------------------------
I THE ONE MINUTE CALLS WERE CHANGED TO REFLECT
I THE NEW LOCATION.
I
I ONE MIN.
I CALLES
I UPDATES.
.
comentarios
I CALLING I LAT, LONG, LOCATION, VER# BOTH SOFTWARE AND HARDWARE
I PROGRAM I THE RESET LOGIC WAS CHANGED TO HANDLE 2-TIME.
I WE CALL OCZERO (THIS SENDS THE OCCULTER TO THE STARTING
I LOCATION) ONLY AT THE END OF THE DAY.
--- -------------------------- ---------------------------------------
As we can see we made a few changes. With these software changes
all three unit in the field are running the same software version.
The three unit being C-station , HELSTF, and KAFB.
John S. Fox
Cc:
WSH
JRV
JES
MEK
HGS
Appendix G
Running the Tape QC Program
AV88-0.58t
04 NOV 8 8
Technical Memorandum
TO: R. W. Johnson
From: John A. Malo, Jr.
Subject: READTPQC.EXE and DGN.EXE
This memo summarizes the use of READTPQC.EXE and DGN.EXE.
To execute READTPQC put a tape in the Exabyte and type READTPQC
at the prompt.
When READTPOC starts, information similar to the following will be
displayed:
Readtpac--program version 4.0.
Data Search in progress, ##
Time/Date: TIME=15:10:04 DATE=26/APR/88
Station=WSH
Please Enter Tape Number >>
At this point the tape identification number is entered. This number
should be a number that is less than 1000. If the station name can not
be identified the READTPQC will ask for it before it asks for the
identification number. The line that reads:
Data Search in progress. ##
may or may not appear. When the tape read program finishes, the
output should look similar the sample output below:
......
----------------ONE
Quad Time Iris Occultor ND SP
#1 00:55:00 156
180 0 0
#2 00:55:02 156
180 0
#3 00:55:03 156
180 0 2
#4 00:55:05 156 180 0 3
Data search in progres
....................
... Finished
00:55:00 Ten Minute Image count: 72
One Minute Image Count: 644
Stop - Program terminated.
D:\TAPEQC)
The files that will be created by READTPQC are a diagnostic file and a
LAN file for every local aparant noon on the tape. The diagnostic file
is named in the form LLL### .DGN. The "LLL" is the three letter
identification and the "## #" is the tape identification number. The LAN
files are named in the form LLL###D.LAN. The "LLL" and the "###".
correspond to the diagnostic file and the "D" in the name corresponds to
the day on the tape. The day will be a letter in the range A-G.
G-2
DGN.EXE takes the diagnostic file created by READTPOC and divides it
into seperate files for each day.
To execute DGN.EXE, type "DGN filename". More than one file name may
be listed. The file name is of the form -
LLL # # #D.DGN. The "LLL###" is the same as the diagnostic file it came
from. The "D" is the representation of the day as in the LAN files. At
the end of every file is a list of totaled diagnostic errors:
1) Spectral Errors- Occurs when the spectral filter is out of sequence.
2) Occultor Errors- Occurs when the occultor changes more or less than
15+-2 degrees per hour. If images are missing
this error could be flagged.
3) Signal Errors When the dark signal rises.
4) Image Errors When the signal in a given quadrant is too high/low.
5) Minute Errors When the time skips ahead or back.
6) Ten Count Errors-When the image count jumps forward or back on a
ten minute image.
8) One Count Errors-When the image count jumps forward of back on a
one minute image.
The attached page is a flow chart of READTPQC.EXE version 4.0.
WA
.....
..
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..
Alim.
...
www
v.. www.
NA .
....
SAV..
....
.
...
..
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w
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.....rawat
Appendix H
Sample Catalogue File Sheet
Catalog of Diagnostic Files
Station Name: Kirtland AFB, New Mexico
Last Update: Wednesday, 4 October, 1988
Updated By: Peter Pak
3
.
!
is
TAPE (D#
START TIME
•
4
DATE
SVERS HVERS
DIAGN
AVIH
make
AVIS
AVIS
AVIS
to
KAA001.1
KAA001.2
KAA001.3
KAA001.4
KAA001.5
KAA001.6
17/MAY/ 88
18/MAY/88
19/MAY/88
20/MAY/88
21/MAY/88
is
13:10:00
01:08:05
01:08:05
AVIH
AV14
AVIH
AVIH
KAA001A. DGN
KAA001B.DGN
KAA001C.DGN
KAA001D.DGN
KAAOO1E.DGN
KAA001F.DGN
KAA001G.DGN
dit
AV15
AVIS
AVIS
sematen
13:10:00
01:08:05
fummis
AVIH
4A002.1
RAA002.2
13: 10:00
13:10:00
13: 10:00
jasnio je
non
AV15
ni
in
26/MAY/88
junio
AVIH
01:08:05
01:08:05
01:08:05
01:06:05
01:08:05
01:08:05
o
joni
je mnie
KAA002A.DGN
KAA002B.DGN
KAA002C.DGN
KAA002D.DGN
TAAOOZE. DGN
KAA002F.DGN
KAA002G.DGN
a
13:10:00
funni
28/MAY/88
AVIH
to
ju mnie
ai
jaren
AVIS
AVIS
13:10:00
monike
mu
· 30/MAY/88
AVIH
KAA005, 1
نیم شه ملسم
01:08:05
01:08:05
1/ JUN/ 88
KAAOOSA. DON
KAA003B.DGN
KAA005C.DGN
KAA0O3D.DGN
13:10:00
15: 10:00
AVIH
AVIH
3/ JUN/68
AVIS
AVIH
1
je
da
KAA004.4
16:40:00
13:10:00
13:10:00
13:10:00
13:10:00
13:10:00
13:10:00
01:08:05
01:08:05
01:08:05
01:08:05
01:08:05
01:08:05
01:08:05
4/ JUN/ 88
5/JUN/88
6/ JUN/ 88
7/ JUN/88
8/ JUN/88
9/ JUN/88
KAA004A. DGN
KAA004B.DGN
KAA004C.DGN
KAA004D.DGN
KAA004E.DGN
KAA004F.DGN
KAA0046.DGN
jande
AVIS
AVIH
AVIH
AVIH
AVIH
ha
te
KAA004.6
i
jemi
b
comercio
junio
01:08:05
01:08:05
jenis juta
promiso
13:10:00
min
Jouko junak
10/ JUN/88
11/JUN/88
12 JUN/88
13/JUN: 88
14/ JUN/88
KAA005A.DGN
KAA0058. DGN
KAA0050.DGN
KAA005D.OGN
KAA005E.DGN
oceno
01:08:05
jenis
AVIH
AVIH
AVIH
AVIS
AVIS
13:10:00
janis
see
ai
j a
KAA006.1
KAA006.2
سب مهم متمسسز
pen
13:10:00
13:10:00
13:10:00
13:10:00
do in t
14/JUN/88
15/ JUN/88
163/JUN/88
17/JUN/88
18/ JUN/88
19! JUN/ 88
01:08:05
01:08:05
01:08:05
01:08:05
01:08:05
AVIH
AVIH
AVIH
AVIH
AVIH
AVIH
KAA006.4
KAA006A.DGN
KAA006B. DON
KAA006C.DGN
KAA006D.DGN
KAA006E. DGN
KAA006F.DGN
AV15
AV15
AVIS
AVIS.
منسز
min
jenis
jamais
منسي ملمسا
KAA0O6.
ن
I
H-
KAA007.1
isom..
AVIS
f
.
in
.
.
1
moves
V1:08:05
we
4A007.6
KAAOO7E.OGN
KAAOO7F.DGN
KAAOO7G. DGN
13:10:00
AVIH
KAA008.1
13:10:00
01:08:05
28/JUN/86
t...
1
Turned off
or 4outine qajntanance..
..
1
1
1
•
2.
!
i
AVIH
t
KAA009.2
juni
Remedio
13:10:00
13:10:00
Home
28/JUN/88
29/JUN/88
30/JUN/86
1/JUL 88
2/ JUL/88
KAA009.4
persino
KAA009A, DGN
KAA0098. DGN
KAA0090. DON
KAA009D, OGN
KAA009E. DON
KAA0097, DON
KAA0096.DGN
on
AVZS
-
AVIH
AV1H
AVIH
AVII-
KAA009.6
train
13:10:00
in
1
orano
47 JUL/88
.
.
.
1
س:
ne
01:18:00
نسخ منسي
on o
5/ JUL/88
6/JUL! 88
7/JUL/86
8/ JUL/88
KAAO10,5
KAA010.4
KAA010.5
AVIH
AVZS AVIH
AV2S AVIH
AVIH
AV2S - AVIH
KAAOI0A.DGN
KAA010B.DGN
KAAO10C.DGN
KAA010D.DGN
KAA010E DGN
01: 18:00
jaoks
مشر متسمم
.
KAAO11.1
journia
AVSS
perhe
19/JUN/88
20/JUN/88
21/JUN/88
AVZH
KAAOI1A.DGN
KAA0118.DGN
KAAO11C.DGN
KAA011.3
jaan
13: 10:00
.
KAA012.)
21/JUN/88
om
AVIS
8
de vorming
KAA012A.DGN
KAA012B. DGN
KAA0120.DGN
KAA0120.DGN
in
HAA012.4
24JUN/ 88
AV35
AV2H
-
1
KAA013.)
25/JUL/88
AVZH
KAAOISA. DGN
KAA0138. DON
KAA014.1
KAA014A.DGN
KAN015.1
..
*
AVSS
min
4/AUG/88
KAA015.3
KAA015,4
01:19:00
01:19:00
tuncis
AVS5
KAA015A. DGN
KAA015B. DGN
KA4015C.DGN
KAA015D.DGN
KAAO1SE. DON
KAA015F.DGN
KAA0156. DGN
kui
AUG/ 88
KAA015.6
jenis
01:19:00
13:20:00
14:20:03
jumala
8/AUG/88
AV2H
16:20:00
15:20:00
20: 10:00
9/AUG/88
10/AUG/88
11/ AUG/66
AVZH
AVZH
AVZH
AV2H
garantis
KAAO15.1
KAA016.2
KAA016.5
KAA016.4
KAA016.5
KAA016.6
KAA016.7
AVSS
01:19:00
01:19:00
01: 19:00
prijeti
KAAO16A.DGN
KAA016B.DGN
KAAO160, DGN
KAAO16D.DGN
KAA016E, DGN
KAA015F, DGN
KAA016G.DGN
13/AUG/08
14. AUG: 88
15/AUG/68
AVIS
AVIS
learnio
13:20:00
AVZH
AV2H
how to
Samir
.
.
.
A017.1
.
1 6 /AUG/88
AVZH
KAAO17A.DGN
AVSS
.
01:09:00
01:09:00
01:09:00
hari
ja
KAA018.1
KAA018.2
KAA018.3
KAA018.4
KAA018,5
KAA018.6
18/ AUG/ 88
19. AUG/ 88
20/ AUG/ 88
21/AUG/88
22/AUG/88
AV3S
AVIS
AVSS
AV3S
AVZH
AVZH
AVZH
AV2H
AVZH
AVZH
KAA018A.DGN
KAA018B. DGN
KAA018C. DON
KAA018D.DGN
KAAQ18E.DON
KAA018F.DGN
13; 10:00
01:09:00


WIE
KHAOL9.1
.
(3:10:00
.
..
H-3
KAA019A. OGN
..
20:30:00
24/AUG/88
AVSS
AVCH.

".
**
Line
..
26/AUG/88
ji
.
:
'
14: 10:00
13:10:00
13:10:00
13: 10:00
13: 10:00
13: 10:00
13: 10:00
01:09:00
01:09:00
01:09:00
01:09:00
KAA020A, DGN
KAA0208. DGN
KAA020C.DGN
W90ZOD. DGN
KAA020E, DGN
KAA020F. DGN
KAAOZOG, DGN
....
.
28/ AUG/88
29/AUG/88
30/AUG/88
31/AUG/88
AVZH
AV35
AV3S
KAA020.6
19
.
.
www
.
KAAO21.1
13: 10:00
20:50:00
1/SEP/88
AVSS
KAAOZIA, DGN
us

..
.
..
.
14: 10:00
13: 10:00
:
::
AVZH
KAA020, 1
KAA020.2
KAA020.3
KAA020.4
KAA020.5
KAA020.6
01:09:00
01:09:00
01:09:00
01:09:00
25/AUG/88
26/AUG/88
27/AUG/88
28/AUG/88
29/AUG/88
30/AUG/86
31/AUG/88
AV3S
AVIS
AV35
AV3S
AV3S
AVSS
13: 10:00
13: 10:00
13: 10:00
13:10:00
.
KAA020A. DGN
KAFO20B. DGN
KAAO20C. DGN
KAAOZOD. DGN
KAA020E.DGN
KAA020F. DGN
KAAOZOG. DGN
..
AVZH
AVZH
AV2H
AV2H
1999
01:09:00
Ol:09:00
4
W
.
KAA021.1
13:10:00
20:50:00
1/SEF/88
AV3S
AV2H
KAA021A. DON

..
..
..
KAA022.1
.
..
.
mmm...
21:20:00
13: 10:00
13: 10:00
13: 10:00
13:10:00
13: 10:00
13:10:00
KAA022.3
KAA022.4
KAMO22.5
ne for de mees
KAA022.6
01:09:00
01:09:00
01:09:00
01:09:00
01:09:00
1/SEP/88
2/SER/88
3/SEP/88
4/SEP/88
5/SEP/88
6/SEP/88
7/SEP/88
AV3S
AV3S
AV3S
AV3S
AV3S
AV35
AV3S
AV2H
AV2H
AV2H
AVZH
AVZH
AVZH
AV2H
KAA022A. DGN
KAA022B. DGN
KAA022C.DGN
KAA022D. DGN
KAAOZZE. DGN
KAA022F. DGN
KAA022G, DGN
கத்தார் தன் பக்தர்கதை கத்து கத்து தனது
இத்ததை தகத்தில் திக்கு திறக்கத் தாதை கத்து
ii.:
i
l.com
WWW.
2...*
www
13:50:00
01:09:00
8/SER/88
AVAH
KAA023A. DGN
KAA023B. DGN
w
14:00:00
13: 10:00
01:09:00
19:42:00
12/SEP/88
13/SEP/88
AV3S
AVSS
AVZH
AV2H
KAA024A. DGN
KAA0246. DGN
wwwwwwww...!
.
KAA024, 2
a
-
-
.
.
KAA025.1
KAA025, 2
16:10:00
13:10:00
01:09:00
13:34:00
14/SEP/88
15/SEP/88
AV35
AV36
AVQH
AVZH.
KAA025A, DGN
KAA025B. DGN
..
.
AF

13
13:50:00
13: 10:00
13:00:00
00
01:09:00
13:34:00
.
A
KAA026.1
KAA026.2
KAA026.3
KAA026.4
KAA026.5
KAA026.6
KAAO26.7
.
15/SEP/88
16/SEP/88
17/SEP/88
18/SEP/88
19/SEP/88
20/Sep/88
21/SEP/88
ᎦᏙᎨᎢ .
AVZH
AVZH
AVZH
AVZH
AVSS
AV3S
AV3S
AV3S
AV3S
AV35
KAA026A. DGN
KAA0268. DGN
KAAOZ6C.DGN
KAAOZ6D. DGN
KAA026E.DGN
KAA026F. DGN
KA4026G, DGN
.
..
13:00:00
13:00:00
13:00:00
00:59:00
00:59:00
00:59:00
AV2H
KAA027.1
13:00:00
20:40:00
22/SER/88
AV2H
.."
.
..
.......
..
.
கார்ப்பார்படப்பாப்பா பாப்பாரப்பாயாப்பாரப்பப்ப்ப்பப்ப்ப்பார்ப்பார்ப்பாரா

.
.
.
.
. .
WWW
..
.
".
.
A
.
..
.
.
அதைத்தால் பாதிக்கும் தத்தத்தத்தத் தத்தித் தந்தத்தத்தத்தத் தத்தத்தத் தத்துவத்துக்காக மத்தத தததத தத்தத்தத் தத் தத்தத்தத் தத்திற்கும்
.
.:
..
.
..
:
...
is
.
www
.
.
m
imowa www
w
.
.
ww.
www.
wwww
ww.
.
.www.
wwwwwwwwwwwwwwwwwwwww
wwwwwwwwwwwwwwww.
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AV88-053t
30 SEP 88
Technical Memorandum
To: R. W. Johnson
From: John Malo
Subject: Malmstrom Tape QC Update
Appendix I
Tape QC Report
This note summerizes the the tape status at Malmstrom as of
30 September 1988.
Attached to this memo are the log sheet and the computer catalog of
the tapes and their accompanying diagnostic file.
Five Tapes have been received from Malmstrom. On 8 September
incorrect occultor readings were read. It is this day or the next
that the occultor gear box jammed. It is on the 9th of September
that the ramping is great enough to flag the first signal error.
.
John Malo
1-2
...
.......
..
..
.
..
.
.
...
..
...
.
...
.
..
.
...
.
..
..
.
...
.
.
.....
..
.
..
........
....
...
....
..
...
Log Sheet
..
Station Name: Malmstrom AFB, Great Falls, Montana
Last Update: 15 September 1988
Updated By: John Malo
Last Update: 18 September388 at Falls,
Date Received
Tape Date
.
Tape Log #
Date Checked in
Comments
01/SEP/88
30/AUG-31/AUG MAG001.1-2
01/SEP/88
First field run.
Short tape. Abort
by John Fox.
08/SEP/88
31/AUG/88
MAGO02.
1
08/SEP/88
Tape stopped due to
power outage.
13/SEP/88
31/AUG-06/SEP MAG003. 1 -7
14/SEP/88
22/SEP/88
08/SEP-14/SEP MAG004.1-7
26/SEP/88
Occultor gear box
jammed on 10 SEP.
28/SEP/88
16/SEP-22/SEP MAG004.1-7
29/SEP/88
Ramping starting to
show.
I-3
..
.....
.............
................
et
Station Name: Malmstrom AFB, Great Falls, Montana
Last Update: 15 September 1988
Updated by: John Malo
TAPE ID#
START TIME
END TIME
DATE
SVERS HVERS
DIAGNOSTIC
MAG001.1
MAG001.2
20:40:00
13:30:00
01:29:00
14:58:00
30/AUG/88
31/AUG/88
MV1S MVIH
MV1S MVIH
MAG001A.DGN
MAG001B. DGN
MAG002.1
16:20:00
21:10:00
31/AUG/88
MVIS MVIH
MAGOO2A.DGN
MAGOO3.1
MAGO03.2
MAG003.3
MAG003.4
MAG003.5
MAG003.6
MAG003.7
22:00:00
13:30:00
13:30:03
13:30:00
13:30:00
13:30:00
13:30:30
01:29:00
01:29:00
01:29:00
01:29:00
01:29:00
01:29:00
01:29:00
31/AUG/88
01/SEP/88
02/SEP/88
03/SEP/88
04/SEP/88
05/SEP/88
06/SEP/88
MVIS MVIH
MVIS MVIH
MVIS MVIH
MVIS MVIH
MVIS MV1H
MVIS MVIH
MVIS MVIH
MAGOO3A. DGN
MAGO03B. DGN
MAG003C.DGN
MAGOO3D.DGN
MAGOO3E.DGN
MAGOO3F.DGN
MAGOO3G. DGN
M
MAG004.1
MAG004.2
MAGO04.3
74.4
MOOV04.5
MAG004.6
MAG004.7
16:50:00
13:30:00
13:30:00
13:30:00
13:30:00
13:20:00
13:20:00
01:29:00
01:29:00
01:29:00
01:29:00
01:29:00
01:19:00
01:19:00
08/SEP/88
09/SEP/88
10/SEP/88
11/SEP/88
12/SEP/88
13/SEP/88
14/SEP/88
MVIS
MVIS
MVIS
MVIS
MVIS
MVIS
MVIS
MVIH
MVIH
MVIH
MV1H
MVIH
MVIH
MVIH
MAGO04A.DGN
MAG004B. DGN
MAG004C. DGN
MAG004D. DGN
MAGO04E.DGN
MAG004F. DGN
MAG004G. DGN
h
MAG005.1
MAGOO5.2
MAG005.3
MAGOOS.4
MAG005.5
MAG005.6
MAG005.7
15:40:00
-13:20:00
13:20:00
13:20:00
13:20:00
13:20:00
13:20:00
01:19:00
01:19:00
01:19:00
01:19:00
01:19:00
01:19:00
01:19:00
16/SEP/88
17/SEP/88
18/SEP/88
19/SEP/88
20/SEP/88
21/SEP/88
22/SEP/88
MVIS MVIH
MVIS MVIH
MV1S MVIH
MVIS MVIH
MVIS MVIH
MV1S MVIH
MVIS MVIH
MAGOOSA. DGN
MAGOO5B. DGN
MAGOO5C.DGN
MAGOO5D. DGN
MAGOOSE. DGN
MAGOO5F. DGN
MAG005G. DGN