MISSION 1102 (CR-2) PHOTOGRAPHIC EVALUATION INTERIM REPORT (PEIR)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04549A000500040011-1
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 4
• Document Creation Date: December 28, 2016
• Document Release Date: January 22, 2007
• Sequence Number: 11
• Publication Date: January 13, 1968
• Content Type: CABLE

Approved Foelease 2007/Q112
T 0 P S E C R E T 130034Z CITE
.- fAll 17 Al 19Z 25X1
CORO NA
SUBJ: MISSION 1102 (CR-2) PHOTOGRAPHIC EVALUATION INTERIM
REPORT, (PT TR'
REF: A
B
1. NUMERICAL SUMMARY
MSN NO AND DATES:
LAUNCH DATE AND TIME:
VEHICLE NO :
CAMERA SYSTEM:
PAN CAMERA NOS:
DISIC NO:
STELLAR LENS HOS :
TERRAIN LENS NO:
RECOVERY REVS:
2. CAMERA SETTINGS
FWD-LOOKING
11,02-1j, 9- 14 DECEMBER 1967
1102-2, 15-22 DECEMBER 1967
9 DECEMBER 1967/2226Z
1642
CR -2
FORWARD-LOOKING, 305
AFT-LOOKING, 304
4, 4P
101
MSN 1102-1, 93
MSN 1102-2, 212
WRATTEt"' 25 FILTER (PRIMARY) SF
inn 'cnn^-^n not nn T71^n\ Crt T^D
!x.270, 0.340, AND A FAIL SAFE . ' T
0.340 ITCH
~WWRATTEN 2 1 FILTER (PRIMARY) . SF 05 Adrnnc.C.py
"if"`
(MODIFIED WRATTEN 57) FILTER
(ALTERNATE). SLIT WIDTHS: 0.134, Wob Tom
5.170, 0.215, 0.270 WITH FAIL SAFE SLIT
OF 0.230 INCH
3. PERFORMANCE SUMMARY
A. PAN CAMERAS: THE GROUP AND PHOTOINTERPRETERS AGREE 25X1
THAT THE BEST PHOTOGRAPHY OF MISSION 1102 IS BETTER THAN ANY
PREVIOUS CORONA PHOTOGRAPHY. THE PERFORMANCE OF THE FORWARD-
LOOKING CAMERA APPEARS TO BE SLIGHTLY BETTER THAN THE AFT-LOOKING
CAMERA. THE FORWARD-LOOKING CAMERA, HOWEVER, CONTAINED A SECOND
GENERATION LENS WHICH HAD A SLIGHTLY HIGHER PREFLIGHT PERFORMANCE
THAN THE FIRST GENERATION LENS IN THE AFT-LOOKING CAMERA. NINE
MOBILE AND FIXED CORN TARGETS WERE RECORDED. THE BEST TARGETS
OBSERVED IN THE 0. MEG YIELDED F_ I
RESOLVED DISTANCE ALONG THE LINE OF FLIGHT (FMC DIREC ION)
ACROSS THE LINE OF FLIGHT (SCAN DIRECTION) FOR THE API-
LOOKING CAMERA; THE FORWARD-LOOKING CAMERA YIELDED APPROXIMATELY
IN BOTH DIRECTIONS. SEVERAL VERY FAVORABLE FACTORS COMBINED
TO PRODUCE THE BEST CORONA MISSION TO DATE. THE PRIMARY FACTORS
WERE GOOD ATMOSPHERIC CONDITIONS, INCREASED SCALE THROUGH LOWER
ALTITUDE AND IMPROVED CAMERA PERFORMANCE.
B. DISIC STELLAR CAMERA PERFORMANCE: THE STELLAR CAMERA
UNCTIONED PROPERLY THROUGHOUT THE MISSION AND RECORDED A FULL
-FIELD OF STARS ON BOTH THE PORT AND STARBOARD CAMERAS. THE STARBOARD
CAMERA WAS MORE AFFECTED BY MISSION PARAMETERS (INCREASED FLARE)
qND OCCASIONALLY WAS INHIBITED BY THE AUTOMATIC SUN SENSING CIRCUITRY
AS DESIGNED. THE MODIFIED `WAFFLES AND REDUCED RESEAU FOGGING LAMP
ILLUMINATION LEVELS IMPROVED PERFORMANCE TO THE EXTENT THAT STARS
'DIMMER THAN 6.5 MAGNITUDE WERE RECORDED. EVERY PORT AND STARBOARD
FORMAT IS SLIGHTLY VIGNETTED AND/OR FLARED BY THE BOOT BAFFLES.
THE FLARE APPEARS AS NARROW BARS ALONG THE LEADING AND TRAILING
25X1
25X1
25X1
7eclass. Peview by NG
78B04 000500040011-1
12711. 25X1
 Approved ForR lease 2007/01/22 ;,CIA-RDP78B04 000500040011-1
1w
EDGES OF THE FORMATS. TYPE 3401 FILM WAS USED THROUGHOUT THE ENTIRE
MISSION.
C. TERRAIN EVALUATION: THE IMAGE QUALITY IS FAIR TO GOOD AND
CF SIGNIFICANTLY BETTER DEFINITION THAN THAT OBTAINED ON MISSION
1101. THE MATERIAL IS CONSIDERED SUITABLE FOR ATTITUDE DETERMINATION
AND AUXILIARY MAP MAKING. A SHUTTER ANOMALY NEGATED THE VALUE OF
MOST OF THE PHOTOGRAPHY AFTER REVOLUTION 152. FOR THE ENTIRE MISSION
THE EXPOSURE TIME WAS 1/500 SECOND, AND THE FILM TYPE WAS 3400.
4. PAN CAMERA ANOMALIES:
A. ANOMALY: CROSS TRACK SMEAR.
CAUSE: FOR THE FIRST TIME THERE IS IDENTIFIABLE EVIDENCE
OF IMAGE DEGRADATION DUE TO THE UNCOMPENSATED CROSS TRACK SMEAR
AND THAT CAUSED BY LIFT ABOVE THE RAILS. THE FORWARD-LOOKING
CAMERA EXHIBITED ADDITIONAL SMEARING. THIS ADDED SMEAR OCCURRED ON
THE TAKE-UP SIDE ONLY AND IS ATTRIBUTED TO ANN UNIDENTIFIED TRANSIENT
WHICH CAUSED FILM DISTURBANCE IN THE SCAM DIRECTION.
ACTION: (1) CONTINUE CURRENT TEST ENDEAVORS TO 2
DETERMINE SOURCE OF THANSIENTS FOR EARLY IMPLEMENTATION. (2)
I?JILL INVESTIGATE AND PROPOSE A LONG ;~ NGE APPROACH FOR SOLUTION OF
THE BASIC UNCOMPENSATED SMEAR. (31I TO INSURE THAT FUTURE CR 25X1
FLIGHTS WILL HAVE A PAINT PATTERN WHICH WILL ALLOW PAYLOAD ON-ORBIT
OPERATION BETWEEN 60 DEGREES AND 90 DEGREES FAHRENHEIT. (MONITORS:
25X1
ACKNOWLEDGEMENT IS MADE OF THE POST OPERATIONAL FAILURE OF THE
FORWARD-CAMERA. THE IMAGE SMEAR DISCUSSED ABOVE HAS NO KNOWN OR
PERCEIVED CORRELATION TO THIS FAILURE. INVESTIGATION OF THIS
ANOMALY IS STILL UNDERWAY.
B. ANOMALY: IT WAS REPORTED THAT THE PAN GEOMETRY TRACE WAS
GENERALLY SHARP AND WELL DEFINED ON BOTH INSTRUMENTS; HOWEVER,
NEAR THE END OF BUCKET ONE AND THROUGHOUT BUCKET TWO, THE TRACE ON
THE BINARY EDGE OF THE AFT CAMERA IS BROKEN. THIS ANOMALY ALSO
OCCURS ON THE FWD CAMERA MIDWAY THROUGH BUCKET TWO.
CAUSE: THIS ANOMALY IS ANALOGOUS TO THE RAGGED FORMAT
EDGE EXHIBITED OCCASIONALLY ON THE J-1 SYSTEM, AND IS CAUSED BY A
CLUMPING OF SMALL PARTICLES OF EMULSION ALONG THE RAIL EDGE. THIS
PARTICLE CLUMPING EXTENDS INTO THE PAN GEOMETRY TRACE AREA CAUSING
THE TRACE IMAGE TO BE OBSCURED.
ACTION: NONE
C. ANOMALY: LIGHT FOG FROM MISSION 1102-1 WAS OBSERVED ON THE
THIRD AND EIGHTH FRAME FROM THE END OF MANY FORWARD-LOOKING CAMERA
OPERATIONS OF INSTRUMENT 305 AND ON THE SECOND AND SEVENTH FRAME
FROM THE END OF MANY AFT-LOOKING CAMERA OPERATIONS (INSTRUMENT 394).
MINOR IMAGE DEGRADATION OCCURRED.
CAUSE: THE THIRD FRAME FROM THE END OF INSTRUMENT 305
OPERATIONS AND THE SECOND FRAME FROM THE END OF INSTRUMENT 304
OPERATIONS APPEAR TO BE FOGGED BY LIGHT FROM THE DRUM AREA OF
INSTRUMENT 304. PRIOR TO FLIGHT, PHOTO MULTIPLIER TESTS REVEALED
NOTICEABLE LIGHT LEAKAGE PAST THE DRUM OF INSTRUMENT 304. WHILE
THE DRUM LIGHT LEAK WAS SIGNIFICANTLY REDUCED BY CORRECTIVE
APPLICATIONS OF RTV, THE LIGHT LEAK WAS NOT ENTIRELY ELIMINATED.
FOG ON THE EIGHTH FRAME FROM THE END OF PASS ON INSTRUMENT 305 AND
ON THE SEVENTH FROM THE END OF PASS ON INSTRUMENT 304 IS
ATTRIBUTED TO A SPACE STRUCTURE LIGHT LEAK IN THE VICINITY OF THE
NUMBER ONE SRV/FAIRING INTERFACE.
ACTION: THE PRESENT LIGHT LEAK TEST PROCEDURE WILL BE
RE-EXAMINED AND APPRO 'F FIED TO MINIMIZE OR ELIMINATE
LIGHT LEAKS. (MONITOR 25X1
D. SCRATCHES IN THE FORMA AREA: THE AFT CAMERA HAD SEVERAL
SCRATCHES IN THE FORMAT AREA. THESE WERE NOTED TO OCCUR INTER-
 Approved ForR lease 2007/01/22 jCIA-RDP78BO4 r-ADA
000500040011-1
MITTENTLY AND BECAME LESS SEVERE AS THE FLIGHT PROGRESSED. THEY
ARE NOT ASSOCIATED WITH FRAME TO FRAME PROGRESSION.
CAUSE: THE PREFLIGHT FILM SHOWED NO SCRATCHES OF THIS
NATURE AND THEREFORE IT IS CONCLUDED TO BE ASSOCIATED WITH IN-
FLIGHT CONDITIONS.
ACTION: REVIEW SYSTEM CLEARANCES, AND APPLY THE FIELD F.J.
TO ALL NEARBY WIRE TIES, CONTINUE ACTION AS OUTLINED Ii! CR-1 PEIR
REPORT. (MONITOR: 25X1
E. ANOMALY: _ THAT OCCASIONALLY THE INDEX
COLUMN OR BOTH THE INDEX AND TIME WORD COLUMNS FAILED TO BE IMAGED
(BOTH PAN CAMERAS).
CAUSE: THIS ANOMALY WAS NOTED DURING THE FLIGHT PREPARATIONS
AND WAS SUBSEQUENTLY REPORTED PRE-MISSION BY THIS PROBLEM 25X1
WAS INDUCED BY ELECTRICAL T )ANSIENTS ON THE POWER L IN" (PAYLOAD
SYSTEM GENERATED) AND ACTUALLY REPRESENTS AN INTERROGATION OF THE
CLOCK JUST PRIOE FILM BECOMING STATIONARY.
ACTION 1IS CURRENTLY IMPLEMENTING A CHANGE TO THE 25X1
INTERROGATION CIRCUITRY WHICH WILL CORRECT THIS PROBLEM PRIOR TO
MISSION 11.3. (10lITO?: 25X1
F. ANOMALY: IT WAS REPORTED THAT THE FREQUENCY MARKS WERE
OCCASIONALLY WEAK OR PARTIALLY MISSING OR COMPLETELY MISSING ON
SOME FRAMES (BOTH PAN CAMERAS).
CAUSE: THIS PROBLEM HAS BEE' L ;P ;IENCED ON OTHER SYSTEMS
AND IS ATTRIBUTED TO THE STARTINIG CHARACTERISTICS OF THE NEON 3ULB
(DARK EFFECT POSSIBLE AGGRAVATED BY LOW TEMPERATURE).
ACT IOI,1: DIS CURRENTLY TESTING A CIRCUIT CHA;JGE WHICH
25X1
WILL ! EEP THE NEON' BULBS ON DURING ALL CAMERA OPERATIONS THIS
CHANGE SHOULD CORRECT THIS PROBLEM. (MO?.NITOR: 25X1
5. DISIC ANOMALIES
A. ANOMALY: FLARE 10 FORtIAT EDGE OF STELLAR RECORDS. ON ALL
I?%!-FLIGHT FRAMES OF BOTH CAMERAS, FLARE PATTERNS APPEAR ALONG THE
ENTIRE FORMAT EDGES AND EXTEND APPROXIMATELY 1/16 TO 3/32 OF AN
INCH INTO THE ACTIVE FORMAT. STAR IMAGES ARE GENERALLY NOT DETECTABLE
IN THESE AREAS. OVERALL FOGGING IS SIGNIFICANTLY LESS THAN WITH CR-1
INDICATING THAT THE INTERIM BAFFLE FIX, IN CR-2 MET ITS BASIC
OBJECTIVES.
CAUSE: IT IS LIKELY THAT THE APERTURE IN THE NEW BAFFLE
LOCATED IN THE FIBER-GLASS BOOT WAS TOO CLOSE TO THE CAMERA FIELD
OF VIEW. THIS RESULTED I N REFLECTED LIGHT FROM THE B
ENTERING THE LENS AND CAUSING THE FOGGING
AFFLE EDGE
.
ACTION: BASED ON CSR-2 RESULTS, PERMANENT J-3
25X1
BAFFLE DESIGNS WILL BE REVIEWED AND APPROVED ON 16 JANUARY 25X1
1968. (MONITORS 25X1
B. ANOMALY: PRESSURE MARKS OUTSIDE FORMAT OF STELLAR RECORD.
PRESSURE INDUCED FOG MARKINGS ARE PRESENT I NJ THE BORDERS ALONG BOTH
FILM EDGES OF THE ENTIRE STELLAR RECORD. NEITHER THE FORMATS NOR
DATA RECORDINGS ARE AFFECTED.
CAUSE: SKEW BEADS. THIS IS A SYSTEM CHARACTERISTIC THAT IS
NOT CONSIDERED OBJECTIONABLE AS LONG AS THE MARKS ARE CLEAR OF THE
FORMATS AN'D DATA.
ACTION: NONE
C. ANOMALY: ELECTROSTATIC DISCHARGES ON STELLAR RECORDS.
ELECTROSTATIC MARKINGS OF THE DENDRITIC AND CORONA TYPES ARE
PRESENT I"!TERMITTENLY THROUGHOUT THE : ISSION.
CAUSE: THE GREATEST OCCURE'1CE IN FREQUENCY AND EXTENT
RESULTS FROM THE PRESSURE/METERING ROLLERS.
ACTION: ELIMINATION OF PR' SSURE/METEERING ROLLER MARKING
DURING ALTITUDE TESTING HAS BEEN REALIZED BY INCORPORATION ON 25X1
ROLLER MATERIAL AND ROLLER FORCE CHANGES. EFFECTIVENESS OF THESE
 Approved For Release 2007/01/22 : CIA-RDP78B04 000500040011-1
CHARGES I1' HIVOS TESTING WILL BE DETERMINED IN FEBRUARY 1969.
(MONITORS:
D. ANOMALY: ALL PORT STELLAR CAMERA FRAME; CONTAIN' REPEATING
PATTERNS OF MINUS DENSITY SPOTS 1.'1HICH APPEAR TO BE CAUSED BY DIRT ON
THE RESEAU PLATE.
CAUSE: DIRT AND FILM/EMULSION PARTICLES CARRIED TO FOCAL
PLANE PLATE BY THE FILM.
ACTION: CONTINUED ATTENTION TO CLEAHLI:'ESS PRIOR TO FLIGHT.
PARTICLES CARRIED BY FILM CAUNOT BE COMPLETELY ELIMINATED.
E. ANOMALY: BEGINN'INJG WITH REVOLUTION 182 OF 1102-2, MOST
TERRAIN FRAMES ARE SERIOUSLY DEGRADED BY WHAT APPEARS TO BE
MULTIPLE EXPOSURES AT A LEVEL SIGNIFICANTLY LESS THAN NORMAL EXPOSURE
BETWIEEN REVOLUTIONS 149 AND 132 SOME SLIGHT DEG~?ADATION WAS NOTED
INTERMITTENTLY. MEASURED SEPARATIONS OF EXPOSURES IN THE FLIGHT AND
FILf,1 TRANSPORT DIRECTIONS ARE CONSISTENT WITH IMAGE, FILM TRANSPORT
A'ID SHUTTER DISC VELOCITIES. THIS INDICATES INCOMPLETE CLOSING OF
THE CAPPING SHUTTER AS THE LIKELY FAILURE. FAILURE WAS INITIALLY
QUITE INTERMITTENT, 3ECOMING PROGRESSIVELY MORE FRE`1.UE"NT UNTIL, AT
THE END OF THE MISSION IT WAS PREVALENT. ANALYSIS INDICATES THAT THE
TERRAIN CAPPING SHUTTER WAS SLIGHTLY OPEN DURING THE TIMED WHEN IT
WAS COMMANDED CLOSED.
POSSIBLE CAUSES:
(1) ELECTRICAL: FAILURES IN ANY ONE OF FOUR ELECTRICAL
COMPONENTS OF THE TERRAIN CAPPING SOLENOID CIRCUIT WOULD PRESENT
A VOLTAGE ACROSS THE SOLENOID DURING NORMAL OFF PERIODS THAT
WOULD PROVIDE A FORCE OPPOSING THE SPRING RETURN SHUTTER CLOSING.
TESTS AT INDICATE THAT THIS WOULD RESULT IN BOTH THE SLIGHT
CRACKING CAPPING SHUTTER AND THE INTERMITTENT NATURE OF THE
FAILURE. ALTHOUGH INITIAL ANALYSIS OF T/M INDICATED THAT A FAILURE
OF THIS NATURE DID NOT OCCUR, INVESTIGATIO?? OF THIS POSSIBLE
FAILURE MODE AND MORE DETAILED ANALYSIS OF THE CORRESPONDING T/M
WILL CONTINUE.
(2) MECHANICAL: NO MEASUREMENTS ARE AVAILABLE THAT WOULD
PINPOINT A PARTICULAR TYPE OF MECHANICAL FAILURE. OF THE SEVERAL
POSSIBLE FAILURES CONSIDERED, CONTAMINATION BY DIRT OR LUBE
BREAKDOWN OR DAMAGE TO THE SOLENOID BALLS AND RACES APPEARED MOST
LIKELY.
ACTION: WILL CONTINUE ANALYSIS TO DETERMINE IF T/M
OVERALL ACCURACY AND SAMPLING ARE ADEcIUATE TO INDICATE WHETHER AN
ELECTRICAL FAILURE CAN BE DETECTED. WILL ALSO INVESTIGATE
ALTERNATE LUBES AND CAPPING SHUTTER ACTUATION METHODS. (MONITOR:
6. COMMENTS N SPECIAL EXPERIMENTS
A. FILTER TESTS: A GREEN SF 05 FILTER ARID A POLARIZING FILTER
WERE FLOWN IN THE ALTERNATE FILTER POSITIONS. SINCE is
CHARGED WITH A DETAILED ANALYSIS AND REPORT OF THE POLARIZER AND
BI-SPECTRAL FILTER EXPERIMENTS, THEE==]LIMITED ITS ANALYSIS TO
CONCLUDE THE GENERALIZATION THAT WHEN THESE FILTERS WERE USED THERE
WAS NO MAJOR DEGRADATION IN IMAGE QUALITY; HOWEVER, THERE WERE
NOTICEABLE DIFFERENCES IN SCENE CONTRAST AND INFORMATION CONTENT.
B. USE OF SO-230: A COMPARATIVE ANALYSIS OF SIMILAR TARGETS ON
SO-230 AND TYPE 3474 FILM SHOWED LITTLE DIFFERENCE IN IMAGE QUALITY.
~fIILL PERFORM A DETAILED ANALYSIS AND REPORT ON THE USE OF
50-230 IN THE CORONA J-3 PAYLOAD.
C. THROUGH EXPOSURE RUN: A THROUGH EXPOSURE RUN WAS MADE
DURING DO32. EVALUATION OF THE IMAGE QUALITY ON FRAMES PRODUCED
UNDER THE MAXIMUM AND MINIMUM SLIT CONDITION INDICATED PERCEPTIVELY
IMPROVED IMAGERY. AGAIN ILL SUBMIT A DETAILED REPORT ON
CORONA J-3 EXPOSURE INCLUDING HIS THROUGH EXPOSURE RUN.
T 0 P S E C R E T
END OF MESSAGE