MISSION 1028 PHOTOGRAPHIC EVALUATION INTERIM REPORT (PEIR)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04558A001200010038-7
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 8
• Document Creation Date: December 28, 2016
• Document Release Date: April 29, 2008
• Sequence Number: 38
• Publication Date: January 15, 1966
• Content Type: CABLE

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T 0 P S E C R E T 150022Z
OUT5 75 ~5 Lot
JAN 15 01 25Z
1. NUMERICAL SUMMARY
MSN NO AND DATES:
1028-1 24-29 DEC 65;
1028-2 29 DEC 65 - 2 JAN 66
LAUNCH DATE:
24 DEC 65
VEHICLE NO:
1610
CAMERA SYSTEM:
J-26
PAN CAMERA NOS:
FORWARD LOOKING (MASTER)
AFT LOOKING (SLAVE)
176;
MSN 1029-1 S/I NO:
077/91/97
MSN 1028-2 S/I NO:
D74/76/95
RECOVERY REVS:
D81 AND D144
2. CAMERA SETTINGS
FORWARD-LOOKING: 0.250 INCH SLIT,
WRATTEN 25 FILTER
AFT-LOOKING: 0.175 INCH SLIT,
WRATTEN 21 FILTER
Declassification Review by
NGA/DoD
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-PERFORMANCE SUMMARY
THE IMAGE QUALITY OF THE PHOTOGRAPHY PRODUCED ON THIS MISSION
IS VERY G001` IT IS CONSIDERED BY BOTH THE PEIR TEAM AND PI
GROUPS TO BE THE BEST OBTAINED IN RECENT MONTHS. THE PI'S DE-
SCRIBE THE COVERAGE AS HAVING A CRISPNESS NOT OBTAINED SINCE
LAST WINTER. THE BEST GROUND RESOLUTION OBTAINED FROM A HIGH
CONTRAST TARGET DISPLAY WAS 7.5 FEET IN THE ALONG TRACK (IMC)
DIRECTION AND 11.5 FEET IN THE CROSS TRACK (SCAN) DIRECTION.
SINCE THERE WAS ONLY ONE TARGET COMPLEX IMAGED UNDER GOOD WEATHER
CONDITIONS THROUGH THE ENTIRE MISSION, THERE IS NO INDICATION
THAT THE BIAS BETWEEN ALONG TRACK AND CROSS TRACK VALUES IS
SYSTEMATIC IN NATURE. THE AFT CAMERA IMAGERY IS SLIGHTLY BETTER
THAN THAT OF THE FORWARD CAMERA. THIS VARIATION BETWEEN THE TWO
PAN CAMERAS HAS BEEN NOTED CONSISTENTLY FOR MANY MISSIONS.
4. ANOMALIES
ANOMALIES INCLUDING THOSE REPORTED IN THE REBIND-42 MES-
SAGES (REFS A AND B) WERE REVIEWED.
A. INTERMITTENT OPERATION OF 200 CYCLE TIMING LIGHT, VAR-
IATION OF SMEAR PULSE LINGTH, AND IN ONE INSTANCE, LOSS OF
SMEAR PULSE OCCURRED ON THE FORWARD CAMERA.
CAUSE: NEON BULB OR DRIVE TRANSISTOR 0109 WERE MARGINAL IN
OPERATION.
ACTION: REVIEW OPERATIONAL PROCEDURES AND COMPONENT SPEC-
IFICATION REQUIREMENTS.
2. HORIZON IMAGERY ON STARBOARD (SUPPLY SIDE) OF AFT CAMERA
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WAS VEILED FROM THE BEGINNING OF THE MISSION THROUGH PASS D63.
THIS VEILING CONDITION ONLY APPEARS 1728-1. IT SHOULD BE
NOTED THAT VEILING DOES NOT DEGRADE DATA REDUCTION.
CAUSE: UNKNOWN. THE CONDITION IS POSSIBLY ASSOCIATED WITH
FUEL VENTING.
ACTION: UNDER INVESTIGATION. SEE..-A OMMFNTS (PARA 5D).
C. LIGHT LEAKS
CAUSE: ALL BUT ONE OF THE LIGHT LEAKS ARE TRACED TO TWO
SOURCES: (1) FELT SEALS AT THE INSTRUMENT DRU~S, AND (2) LAM-
INATED STRIPS AT THE REAR OF THE' INSTRUMENT DRUMS. A THIRD FOG
SOURCE IS LOCATED IN THE REGION BETWEEN THE TWO PAN INSTRUMENTS
BUT THE EXACT SOURCE IS NOT KNOWN.
ACTION: (1) SUPPLEMENTARY SEALS FOR THE PAN INSTRUMENT
DRUMS ARE UNDER INVESTIGATION.
(2) A CORRECTIVE SEAL TO THE LAMINATED STRIPS HAS ALREADY
BEEN EXTABLISHED. NO ACTION NECESSARY.
(3) THE UNKNOWN THIRD FOG REGION WILL BE INVESTIGATED TO
DETERMINE MOST PROBABLE SOURCE.
D. DENDRITIC STATIC FOG IS PRESENT INTERMITTENTLY ALONG
THE EDGES OF THE FILM FROM BOTH PAN CAMERAS THROUGHOUT THE MISSION.
THE INCREASED FREQUENCY OF OCCURRENCE RELATIVE TO PREVIOUS EX-
PERIENCE PROMPTED THIS REPORTING.
CAUSE: MORE STATIC DISCHARGES WERE NOTED DURING THE PRE-
SPLI E OPERATION THAN ARE NORMALLY EXPERIENCED, INDICATING THE
FILM UNUSUALLY DRY. HOWEVER, THE NUMBER OF DISCHARGES
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DURING PRE-SPLICING WAS NOT SIGNI'ICIENT IN EXPLAINING THE IN-
CREASED FREQUENCY OF DENDRITIC STATIC FOG.
OVA: NO NEW ACTION IS REQUIRED, BUT THE TEAM WANTS TO
EMPHASIZE THE NEED TO CONTINUE TO TAKE AL f_`POSSIBLE PRECAUTIONARY
MEASURES TO MINIMIZE CONDITIONS WHICH CONTRIBUTE TO DENTRITIC
STATIC FOG. >>.
E. A MINOR REGION OF SOFT IMAGERY APPEARS THROUGHOUT
MATERIAL FROM THE AFT CAMERA IN A REGION UP TO ONE-HALF INCH
WIDE AT THE TIME TRACK EDGE OF THE FORMAT.
CAUSE: UNKNOWN. THE CONDITION IS POSSIBLY DUE TO IRREGUL-
ARITY IN TRACKING TENSION.
ACTION: CHECK "DOCTOR A" TEST HISTORY FOR POSSIBLE IN-
DICATION OF CAUSE.
F. AN EMULSION SCRATCH APPEARED INTERMITTENTLY IN FORMATS
OF BOTH CAMERAS THROUGHOUT THE MISSION.
CAUSE: UNDOUBTEDLY THE FILM WAS RUBBING WITHIN THE SYSTEM
TRACKING PATH.
ACTION: INCREASE INSPECTION OF PREFLIGHT TEST MATERIAL
TO AVOID REOCCURRENCE.
G. THE SHRINKAGE MARKERS AND DATA BLOCK EDGE OF FORMATS FROM
BOTH CAMERAS SHOW RAGGED EDGES.
CAUSE: EMULSION BUILD-UP ON FILM RAIL AT THE DATA BLOCK SIDE
WAS NOT ADEQUATELY CLEANED IN PREFLIGHT PROCEDURES.
ACTION: (1) REVIEW PREFLIGHT SAMPLES AND CURRENT EQUIPMENT
CLEANING PROCEDURES TO DETERMINE ADEQUACY.
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.(2) REVIEW FLIGHT LOADING AND CERT' ATION PRECEDURES
FOR ADEQUACY-
Re MINUS DENSITY STREAKS APPEARED INTERMITTENTLY ON
BOTH MISSIONS.
CAUSE: UNDETERMINED PARTICLE. ERE IN THE AREA OF THE FIELD
FLATTENER.
ACTION: NO ACTION REQUIRED. THE CONDITION EMPHASIZES THE
IMPORTANCE OF CLEANLINESS AND CLEANING PROCEDURES.
I. A MALFUNCTION OF THE INDEX CAMERA SHUTTER IN THE 1028-2
MISSION CAUSED EXTREME FOGGING.
CAUSE: A REVIEW OF TELEMETRY DATA AND FLIGHT MATERIAL
REVEALS THE SHUTTER OPENED WITH THE SHUTTER FIRE COMMAND AND
REMAINED OPEN UNTIL THE SHUTTER WIND COMMAND. CORRELATION OF
INDEX FRAMES VERIFIED THAT PROPER METERING OCCURRED. THE UNFOGGED
AREAS DESCRIBED IN REF B WERE MADE DURING TWO NIGHT ENGINEERING
PASSES. THE SPECIFIC CAUSE OF SHUTTER FAILURE IS NOT KNOWN.
ACTION: (1) INCREASED QUALITY CONTROL AND AN ENGINEERING
SURVEY OF THE MANUFACTURERS PROCEDURES SHOULD BE UNDERTAKEN.
(2) THE SHUTTER TELEMETRY SHOULD BE MODIFIED TO BE MORE
USEFUL F,R IN-FLIGHT DIAGNOSTIC PURPOSES.
SUCH A CHANGE WOULD PERMIT MORE EFFICIENT MISSION PROGRAMMING IN
THE EVENT OF INSTRUMENT ANOMALIES.
(3) INVESTIGATE POSSIBLE MODIFICATION TO PREFLIGHT PRO-
CEDURES TO PROVIDE GREATER CONFIDENCE ON INDEX SHUTTER OPERATION.
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J. AN OUT-OF-FOCUS CONDITION OCCURRED ON THE FORWARD CAMERA
DURING PASSES D130 AND D131.
CAUSE: A TENSION OR BIAS CONTRITION ;WAS CAUSED BY A MAN-
UFACTURERS SPLICE.
ACTION: NONE REQUIRED.
K. A SERIES OF COMET-LIKE MINUS DENSITY SPOTS WERE FOUND TO
REPEAT AT 9 3/4 INTERVALS ON PASS D53, FRAS AS TO 80, OF THE AFT
CAMERA. FREQUENTLY THE MINUS DENSITY SPOTS WERE FOUND TO HAVE A
SMALL DARK PARTICLE AT THE CENTER.
CAUSE: UNKNOWN. THIS IS PROBABLY A FILM MANUFACTURING
DEFECT.
ACTION: NONE INDICATED.
L. A CREASE APPEARS IN FORWARD INSTRUMENT MATERIAL THREE
FRAMES AFTER A SPLICE IN PASS D22. IN THE SAME AREA SMALL CRIMPS,
PRESSURE MARKS, AND MECHANICAL DAMAGE APPEAR ALONG ONE EDGE OF THE
FILM AT APPROXIMATELY 10 3/4 INCH INTERVALS.
CAUSE: UNKNOWN: FROM ANALYSIS, IT APPEARS MOST UNLIKELY
THAT THE DEFECT ORIGINATED IN THE CAMERA SYSTEM. THE PROBABLY
CAUSE APPEARS TO BE IN FILM MANUFACTURING.
ACTION: ATTEMPT TO CORRELATE DEFECT WITH FILM MANUFACTURING
AND DETERMINE WHETHER QUALITY ASSURANCE CHANGES ARE INDICATED.
AS WAS THE CASE WITH MISSION 1026, THE MEASURED DENSITY
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VALUES (D-MIN AND D-MAX) WERE LO Wft, THAN THE AVERAGE VALUES Fdf
PAST MISSIONS. THE PEIR TEAM IS CONCERNED BUT UNCERTAIN AS TO
THE SIGNIFICIENCE OF THIS FACT. SINCE THE PI'S INTERPRET FROM
DUPE POSITIVES THEY ARE RELUCTANT TO MAKE SPECIFIC STATEMENTS
ABOUT EXPOSURE AND DENSITY. IMAGE IN?PRETAB ILITY, THEREFORE,
IS DESCRIBED IN GENERAL TERMS THAT CANNOT BE RELATED TO ORIGINAL,
NEGATIVE DENSITY OR EXPOSURE. THOSE RESPONSIBLY FOR SELECTING
CAMERA EXPOSURE SETTINGS ARE ALWAYS FACED WITH WEIGHING PREDICTED
DENSITY VERSUS IMAGE DEGRADATIONS RESULTING FROM IMAGE MOTION.
CURRENTLY, EXPOSURE TIMES ARE BEING USED WHICH9 IN COMBINATION
WITH SOLAR ALTITUDE, ETC., ARE PRODUCING LOW MEASURED DENSITY
VALUES (EVEN WITH FULL DEVELOPMENT IN PROCESSING). THE PEIR
TEAM FEELS THAT ADDITIONAL DATA DESCRIBING OPERATIONAL TARGET
BRIGHTNESS ALONG WITH INCREASED FREQUENCY OF RECORDING THOSE
BRIGHTNESSES, WOULD BE HELPFUL IN VIEWING THE TRADE-OFF DE-
SCRIBED ABOVE. THEREFORE, THE TEAM RECOMMENDS THAT A STUDY
WHICH WOULD PROVIDE THESE DATA BE UNDERTAKEN. TO UNDERTAKE SUCH
A STUDY WILL REQUIRE ACTION FROM THE PROGRAM MANAGEMENT. ALSO THE
PEIR TEAM REQUESTS THAT
PROVIDE A DENSITY DATA SUMMARY FOR
THE MISSION BEING REVIEWED AT THE PEIR MEETING.
8. THE PEIR TEAM REAFFIRMS ITS INTEREST IN THE YARDLEIGH
VERSUS TRENTON TEST PROGRAM AS OUTLINED IN THE 1026 PEIR. THIS
TEST PROGRAM SHOULD BE EXECUTED AS SOON AS IS FEASIBLE.
C. EVALUATION OF THE INDEX PHOTOGRAPHY FROM MISSION 1028-1
9UGGESTED.8!TTER THAN AVERAGE ATMOSPHERIC CONDITIONS. THE CORN
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TARGET DISPLAYS WERE ADVERSLY EFFEf D SY POOR WEATHER CONDITIONS.
D. THE FOLLOWING AREAS WILL BE INVESTIGATED IN AN EFFORT TO
EITHER CORRELATE OR DISASSOCIATE THE VEHICLE FUEL VENTING WITH
THE H. 0. VEILING AND STELLAR PARTICLE PREMS:
(1) FUEL VENTING SEQUENCE TIME.
(2) DURATION OF VENTING.
(3) POSITION OF VENT.
(4) PREDICTED PATTERN
(5) EARLIEST POSSIBLE "CAMERA ON" TIMF.
THE A- ROVE ITEMS WILL BE PRESENTED AT THE PEIR TEAM MEETING
SCHEDULED FOR THE NEXT MISSION.
E. ACTION ITEMS RESULTING FROM PEIR TEAM ACTIVITIES ARE,
AS A MATTER OF PROCEDURE, FOLLOWED TO COMPLETION OR RESOLUTION B Y
THE PEIR TEAM AND THE RESULTS OF THE ACTIONS ARE ROUTINELY
RECORDED IN ONE OR MORE OF THE VARIOUS DOCUMENTS ASSOCIATED WITH
MISSION READINESS, OPERATIONS, AND EXPLOITATION FUNCTIONS. FOR
RECORDING AND MANAGEMENT PURPOSES, EFFECTIVE WITH MISSION 1029 THE
PEIR WILL INCLUDE A REPORT ON ACTION ITEMS ASSIGNED BY THE PEIR
TEAMS OF PRECEDING MISSIONS. EFFECTIVE WITH PEIR TEAM ACTIVITIES
OF MISSION 1028, EACH ACTION ITEM WILL HAVE ASSIGNED TO IT ONE OR
MORE MEMBERS OF THE PEIR TEAM WHO WILL MONITOR PROGRESS AND FOR-
MALLY REPORT RESULTS AT THE NEXT PEIR TEAM MEETING. THESE REPORTS
WILL APPEAR IN THE PEIR UNDER THE HEADING "REPORT ON PREVIOUSLY
ASSIGNED ACTION ITEMS.
T S E C R E T -END OF MESSAGE-
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