MISSION 1105 PHOTOGRAPHIC EVALUATION INTERIM REPORT (PEIR)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04549A001100030123-7
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 7
• Document Creation Date: December 28, 2016
• Document Release Date: August 8, 2008
• Sequence Number: 123
• Publication Date: December 10, 1968
• Content Type: CABLE

Approved For Release 2008/08/08: CIA-RDP78BO4549AO01100030123-7 (d S
T .0 P S
PRIORITY
C R E T 100338Z DEC 68 CITE
CORONA -
SUBJECT : MISSION 1105?, PHOTOGRAPHIC EVALUATION INTERIM REPORT
REF.: A. 12 13
13. 1236
1. NUMERICAL SUM'li M'MAR Y :
MSiJ NO AND DATES : 1 105- 1 , 3- 1 1 NOVEMBER 1968
1105-2, 11-21 'NOVEMBER 1966
LAUNCH DATE ANDTIME.: 3 NOVEi''iBER 1968/21312
VEHICLE NUMBER: 1646
CAMERA SYSTEEN: CR-'5:
PAN CAMERA ENO.: FORWARD LOOKING, .311
AFT LOOKING, 310
DISIC CAMERA NO: THER-E WAS iODISIC CAMERA
RECOVERY REVS: NSN 1105-1, 131 -
MSN 1105-2, 292
CAMERA SETTINGS
FWD-LOOKING: WRATTEN_25 FILTER (PRIMARY).
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WRATIENT- 23A FILTER (ALTERNATE)
SLIT WIDTHS: 0.180, vv.229, 0.3
FAILSAFE SLIT 0.305 INCH
AFT-LOOKING: WRATTEN 21 FILTER (PRIi'r1ARY)
W/2E' PLUS CC2 C PLUS 0.4N.D. (ALTERNATE, FOR.SO-
SLIT WIDTHS: 0.138, 0.149, 0.192, 0.271 ANDA
FAILSAFE SLIT 00.195 Ii'CH -
3. PERFORMANCE SUMMARY THE PET FEELS THAT THE. IMAGERY FROM
MISSION, IN GENERAL, IS SIGNIFICANTLY DEGRADED WHEN COMPARED
MISSION 1 1 0 4 THE IMAGE. QUALITY IS EXTREMELY VARIABLE
CES
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MISSION 1105 IS EQUIVALENT JO THE BEST PHOTOGRAPHY FROM MISS
H"WEVEP THE A[ iMOUKT OF SUCH HIGH QUALITY IMAGERY IS LIMITED.
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GENERAL, . THE. OVERALL QUALITY-I" ABOUT COMPARABLE.. TO THE J-1
-11 TIr A Al n1n{71An1 ! V
WITH THE WORST QUALITY U I NU UUNZDJULtcxbLL ruuiiEn IHAN ivv11IIn1-a-,
EXPERIENCED WITH. A J-1 CAMERA. THE PET. ASS'E'SSMENT IS IN. GENERAL ~~~
S.~iViTI`Z~b
AGREEMENT WITH THAT.'OF THE PHOTO INTERPRETERS.THE PI'S REPORTED TwYT T
THE PET THAT, "THE IMAGERY PROVIDED BY MISSION, 1105 IS GENERALLY
SOFT AND INTERN1TTENLY DISPLAYS AREAS OF IMAGE SMEAR. THE IMAGE
DEGRADATION ON THIS. 'MISSION RESULTED IN THE INTERPRETABILITY (OF
PAGE 3 52 12 T 0 P S E C R 'E T
MISSION 1105) BEING GE VE,RALLY SIMILAR TO THAT OF A NORMAL J-1.
HOWEVER, THE BEST QUALITY, PHOTOGRAPHY OF MISSION 1105 IS BETTER
THAN THE BEST OF ANY J-1 MISSION, WHILE THE MORE DEGRADED IMAGERY
IS WORSE. THAN THAT OF 'A' NORMAL J-1 dMISSION.
THE OVERALL IMAGE QUALITY OF MISSION 1105-2 WAS BETTER THAN THAT
OF MISSION 1105-1. THIS IS ATTRIBUTABLE TO THE FACT THAT FWD CAMERA
PERFORMANCE WAS LESS VARIABLE IJ 1105-2 THAN ON 1105-1, WHILE THE
AFT CAMERA IMAGERY GENERALLY REMAINED CONSTANT THROUGHOUT BOTH
PORT IONS. FURTHER EVIDENCE OF THIS UNUSUAL CONDIT ION IS OBTAINED .BY
NOTING THAT THE NIP FRAME FOR MISSION 1105-1 WAS CHOSEN FROM THE AFT
CAMERA, WHEREAS THE r'!IP FRAME FROM MISSION 1105-2 WAS CHOSEN FROM,
THE FWD CAMERA. MISSION .1105 WAS THE FIRST - CORONA SYSTEM TO FLY WITH
A FULL LOAD OF SO-3B0 (ULTRA- THIN BASE - UTI ). FILM. THE IMAGE -
QUALITY VARIATIONS ARE DIRECTLY ATTRIBUTABLE.-TO THE INTERACTION OF
THE UTB WITH THE CR-5 SYSTEM (SEE NEXT SECTION) MODIFICATIONS WERE
MADE TO' CR-5 T.O' ENABLE RELIABLE HANDLING OF UTB. THE MAJOR tr1ODIFI
(.PEIR)
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CATION WAS A REDUCTION IN SYiTEN FILM TE:NSIONS.. IT WOULD APPEAR THAT
THIS REDUCTION IN TENSION CAUSED AN IN FLIGHT VARIABILITY- IN FILM
LIFT AND DYNAMICS IN THE SCAN HEAD AREA DURING EXPOSURE. THIS .
VARIABILITY WAS NOT OBSERVED If' EXTENSIVE SIMULATED ENVIRONMENTAL
PAGE 4 5212 T O P S E C R
`
TESTING.
SEVERAL FAVORABLE PHOTOGRAPHIC. COL',,DITIO?vS WERE EVIDENT WHICH
HELPED TO MITIGATE THE DEGRADING EFFECTS. FOR EXAMPLE, THE MISSION
EXPERIENCED GENERALLY CLEAR. WEATHER OVER DENIED AREAS.. FURTHER,
THERE. WAS A LARGE PERCEJTAGE OF LIGHT SNOW COVER WHICH RESULTED IN
FAVORABLE' HIGH CONTRAST IMAGERY WITH LONG SHADOWS.
A GOOD WAY TO ILLUSTRATE THE VARIABILITY EXPERIENCED ONJ MISSION'
1105 IS TO -EXAMINE: THE FIXED CORN TARGETS AT EDWARDS AFB ON REV D161.
THE BEST TARGET OBSERVED RESOLVED 5 FEET GRD, WHEREAS THE RESOLUTION'
TARGET 10 MILES AWAY (APPROXIMATELY 2 INCHES ON THE FILM)-WAS BADLY
SMEARED AND BARELY RESOLVED 25 FEET GRD...
4. DISCUSSION OF THE'UTB ANOMALY: WHILE ALL ASPECTS OF THE UTB PRO=
BLEW EXPERIENCED ON CR-5 ARE NOT COMPLETELY' UNDERSTOOD, SEVERAL
FACTORS, HELF' TO 'EXPLAI N THE PROBLEM.
A. UT13 HAS RECEIVED EXTENSIVE TESTING WITH THE J-3 CAMERA SERIES.
THIS TESTING HAS INCLUDED FILM HANDLING, TRACKING ENVIRONMENTAL AI4D.
FILM FLATNESS EVALUATIONS. IN PARTICULAR, CR-5 WAS SUBJECTED TO
"DR. A" (FILM FLATNESS) TESTING IN THE HIVOS' (HIGH VACUUM ORBITAL
SIMULATOR) CHAMBER. IN FULL FLIGHT CONFIGURATION. THIS WAS THE FIRST
TIME THAT FILil FLATNESS TESTING . HAD BEEN UNDERTAKEN AT F] IN A
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SIMULATED ENVIRONNJMENT'. THE -RESULTS OF THESE TESTS WERE CONSIDERED
ACCEPTABLE. THir MI:SSION IMAGE QUALITY VARIATIONS INDICATE.
SIG NIFICAIJT:LY. -REATER FILM PLANE E.(CURSIONS -THAN WERE EXPERIENCED
IN THIS SIMULATED ENVIRONMENTAL TESTING. _ THERE IS NOT, AT THE MOMENT,
A CLEAR UNDERSTANDING OF WHY THE FLIGHT ,RESULTS W uE INCOMPATIBLE
WITH THE SIMULATED ENVIRONMENTAL TESTS.
B. FILM TENSIONS OW CR-5 WERE SET LOWER THAN ANY. PREVIOUS CORONA
SYSTEM, BEING SET AT 36 OZ. STATIC TENSION VICE 46 OZ. FOR THE
NORMAL CASE. (OTHER FACTORS SUCH AS THERMAL. A+iOMALIES AND EXCESSIVE
FRICTION IN THE .SYSTEM MAY HAVE FURTHER INFLUENCED CR-5 SYSTEM
TENSIONS) FILM TENSIONS WERE SET LOWER AS A .RESULT OF SYSTEM TESTING.
THIS TESTING INDICATED THAT UTB HAD SEVEREST CAI J SENSITIVITY THAT
-CAUSED SERIOUS PLUS DENSITY' MARKS ON THE FILM. THIS 4iARKI'WG TOOK THE
SHAPE OF LOTH CONTINUOUS ' bJAVY" LINES THROUGH THE CENTER OF THE
FORMAT AND SPERM SHAPED MARKS. THIS i;Ag](IWG WAS SERIOUS WITH NORMAL
(I.E., 46 OZ.) TENSIONS AND COi"SIDERABLY REDUCED WITH T;f.E LOWER
TENSIONS.
C. THE DIFFERENC=E IN IMAGE QUALITY VARIABILITY BETWEEN THE FWD
AND AFT INSTRUMENTS IS READILY EXPLAINABLE. THE FWD CAMERA (UNIT. 311)
CONTAINED A THIRD GENERATION LENS, WHEREAS THE AFT CAMERA (UNIT 10)
HAD A SECOND i _`? .RATION LENS. WHILE THE MAXIMUM RESOLUTION OF THE I
THIRD GENERATION LENS IS HIGHER. THAN THAT OF THE SECOND, ITS DEPTH
OF FOCUS"-I `C'014S"Iu'EIABLY ~~JOIiE CRITICAL. FOR EXAMPLE, IN ORDER' TO
MAINTAIN 80 PE} CENT .OF MAXIMUM SYSTEM RESOLUTION (140 L/NM - LOW
CONTRAST) WITH UNIT 310, -THE FILM PLANE ?1UST BE MAINTAINED TO
WITHIN PLUS 0.0032 INCH. THIS IS OPPOSED TO UNIT 311, WHERE THE FILM
PLANE HAD TO BE MAINTAINED TO WITHIN PLUS 0.00.03 INCH TO PRODUCE .
80 PERCENT OF PEA-K RESOLUTION .(.190 L/NM-LOW CONTRAST). THAT IS9 THE
SECOND GENERATION LENS HAS A -SIG NIFICA?NTLY-GREATER TOLERANCE TO
VARIATIONS IN FILM EXCURSIONS. SINCE THE DEPTH OF FOCUS' IS GREATER
THAN THAT OF THE- THIRD GENERATION LENS.
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D. A RE-EXAMINATION WAS MADE. OF THE- MISSION 1103 UTS TEST. THIS
EXAMINATION INCLUDED EVALUATING COMPARABLE REVS--FROM THE TWO MISSIONS.
THE CONCLUSION WAS THAT .MISSION. 1103 DID -i40t EXHIBIT THE VARIABILITY
EXPERIENCED ON' MISSION 1105. EVEN IN RETROSPECT, THERE ARE NO
INDICATIONS FROM THE 1103 TEST THAT WOULD HAVE PRECLUDED FLYING
SO-380 ON MISSION 1105..
5. PAN CAMERA ANOMALIES:
A. ANOMALY: THE FIFTH FRAME OF THE AFT CAMERA HAS A 0.5 INCH WIDE
OUT -OF FOCUS BAND ALONG THE BINARY EDGE. CAUSE: THE BINARY EDGE OF
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THE FIFTH FRAME OF MANY OPERATES SHOWS SEVERE VARIATION IN 'IMAGE
QUALITY. THE IMAGE UNDULATES FROM GOOD TO BAD ON 1105-1 BUT WAS
NOTICEABLY IMPROVED ON l liu5-2. DURING CAMERA SHUTDOWN, FRAME. FIVE
OF THE NEXT OPERATION IS I N A TWIST CONDITION -THUS CAUSING FILM
DEFORMATION ALONG THE INBOARD EDGE. THE LACK OF.THIS ANOMALY IN
PART 2 SUGGESTS A FILM TENSION CHANGE A.ND/OR LESS FILM CURL (WEB
DIFFERENTIAL). ACTION: EFFECTIVE ON CR-S MODIFICATIONS WHICH
LENGTHEN THE AIR TWISTS ARE EXPECTED TO REDUCE THIS EFFECT. NO
FURTHER ACTION IS RECOMMENDED.
B. ANOMALY: BASE RUB REPORTED THROUGHOUT 1105-2. CAUSE: THE
BASE RUB IS FAINTLY VISIBLE ON THE 0/N MATERIAL ONLY WHEN VIEWED BY
GRAZING LIGHT. THE ACTUAL CAUSE Or THIS MINOR ANOMALY IS UNKNOWN.
ACTION: DEGRADATION ~IS SO MINOR THAT NO ACTION IS RECOMMENDED.
C. ANOMALY: A PLUS DENSITY. (PLUS D) STREAK.. 0. 1 INCH WIDE LOCATED
ALONG THE TIME-TRACK EDGE OF THE FILM BEGINS IN FWD FRAME 10 OF PASS
D 197 AND ENDS AT A MANUFACTURER'S SPLICE FRAME .73, PASS D 198. THIS
STREAK IS OUTSIDE THE ACTIVE FORMAT AREA -FRAMES 10 TO 19, PASS
D197 EXHIBIT EDGE FLUTING ALONG WITH THE PLUS D- STREAK. CAUSE: THE
ULTRA THIN BASE. WAS APPARENTLY RUBBING AGAINST A FLANGE. VARIATIONS.
IN EDGE TENSION ARE CONSIDERED THE CAUSE OF THE FILM PATH CHANGE.
PAGE 3 5212 T 0--.P S E C R E T
ACTION': THIS IS A NORMAL -.CHARACTERISTIC OF ULTRA THIN BASE FILM. NO
ACTION REQUIRED.
D. ANOMALY: THERE IS AN INTERMITTENT EMULSION SCRATCH LOCATED ONE
HALF INCH FROM THE DATA .BLOCK EDGE BEGINNING -IN PASS D64 AND CONTIN-
UING TO THE END OF THE MISSION. THIS SCRATCH IS UP-TO TEN INCHES LONG
AND IS PRESENT AT THE TAKE-UP END-OF THE FRAMES.-CAUSE: THE MOST
PROBABLE CAUSE OF THIS INTERMITTENT EMULSION SCRATCH WAS . A
-STICKING DRUM ROLLER. ACTION: CONTINUING ATTENTION TO GENERAL
INSTRUMENT ROLLER CONDITION DURING PRE-LAUNCH TESTING.
E. ANOMALY: FILM DEPLETION; CAMERA FAILURES. CAUSE: BOTH
PANORAMIC CAMERA FAILURES WERE IN THE FILM TRANSPORT SYSTEM AND WERE
DIRECTLY RELATED TO. FILM DEPLETION. IN THE AFT LOOKING UNIT A' FILM -
WRAP UP ON THE FRAME METERING ROLLER OCCURRED., WHICH SHEARED THE DRIVE
PIN, BUT APPARENTLY ENOUGH DRAG WAS RETAINED IN THE GEAR DRIVE TO STALL
THE UNIT. THIS STALLED CONDITION CAUSED AN ABNORMAL POWER CONSUMPTION.
THE FORWARD LOOKING UNIT FAILED IN A SIMILAR. MANNER BUT THE UNIT WAS
FREE ENOUGH TO CONTINUE ROTATION. FILM WRAP-UP FOLLOWING
FILM DEPLETION APPEAR.S TO BE A CHARACTERISTIC. POSSIBLE FAILURE
MODE-FOR THE PANORAMIC CAMERAS. ACTION': THE PRIMARY ADVERSE
EFFECT OF THIS ANOMALY IS THE CONTINUOUS POWER USAGE.
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A MODIFICATION TO THE INTERNAL CAMERA OPERATE COMMAND IS
BEING INCORPORATED IN ALL FUTURE CR SYSTEMS. THIS MODIFICATION
.,WILL REMOVE POWER AND ELIMINATE THE POSSIBILITY OF THIS ANOMALY
OCCURING.
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F.. : ANOMALY:. VEILING OF THE PORT HORIZON IMAGERY
FROM BOTH PAN CAMERAS' GRADUALLY DEVELOPEI AS. THE MISSION
PROGRESSED.. IMAGERY APPEARED SHARP AT THE BEGINNING OF MISSION
1105-1. THE HORIZON IMAGERY WAS STILL 'JELL DEFINED AND USABLE
THROUGHOUT BOTH MISSION SEGMENTS. CAUSE: THIS IS THE FIRST
11010 SERIES MISSION TO EXHIBIT VEILED HORIZON 'IMAGERY AND THE
FIRST MISSION INCLUDING THE 100O SERIES TO. PRODUCE VEILED
IMAGERY ON THE PORT SIDE. : INVESTIGATION HAS FAILED- TO REVEAL ANY
KNOWN) CAUSE. ACTION: NO'_''4'vw ACTION IS CONTEMPLATED AT THIS TIME.
G. ANOMALY : HOLES WERE TORN I N THE' FILM FROM BOTH CAMERAS
NEAR THE WATER SEAL CUTS OF MISSION 1105-20 A HOLE,, ABOUT ONE-
QUARTER INCH BY ONE EIGHTH I NCH.9 WAS 'TOR N IN THE SO- 121 FILM
'(AFT (",AMERA) ABOUT 23 3/4 I NCHES FROM THE WATER SEAL CUT.
ADDITIONALLY, AN -EMULSION SCRATCH, ABOUT ONE SIXTEENTH INCH BY
TWO INCHES, IS LOCATED ABOUT 16 INCHES FROM THE WATER SEAL CUT.
ON THE SO-380 . F ILM (F',JD CAiIERA) THERE ARE TWO HOLES: OftE IS
ABOUT 1. 5/8 INCHES B.Y ONE-EIGHTH INCH, AND.. IS LOCATED 61
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INCHES FROM THE WATER SEAL CUT; THE OTI{ER HOLE IS THIAtNGULAR,
ABOUT ONE-QUARTER INCH ON A SIDE, AND IS 30 .1/2 INCHES FROM THE
WATER SEAL CUT. THERE IS NO TRACE OF OTHER MECHANICAL DAMAGE
IN THE VICINITY OF THE -HOLES ON EITHER rILM.. A CREASE. ABOUT
10 INCHES LONG FOLLOWING THE LARGER HOLE- Of THE SO-38'Vj
FILM,-OCCURRED DURING PROCESSING. A THO-WUGH SEARCH OF THE
RECOVERY BUCKET PRODUCED NO. TORN PIECES OF FILM. CAUSE:
A THOROUGH. ANALYSIS OF SYSTEM O-PERATIOdN HAS PROVIDED NO CLUE TO
THE CAUSE. ACTION: THESE ANOMALIES ARE.UNIQUE IN THE HISTORY
OF THE PROGRAM. 0H0: FURTHER ACTION IS KNOWN OR RECOMMENDED.
H. ANNO+MALY: PLUS DENSITY r` ARKS APPROXIMATELY X .01 TO 0.02
INCHES IN SIZE ARE PRESENT IN THE AFT LOOKING CAMERA RECORD
FROM BOTH' MISSION SEGMENTS. THE MARKS OCCUR WITH A REPEATING
PATTERN NEAR T HIE CENTER=OF THE FILM WITH A.. SPACING' OF APPROXIMATELY
6 1/4 INCHES. A SECOND SEQUENCE OF MARKS 'OCCURS 3/3 INCHES IN FROM
THE TIME TRACK. WITH A PATTERN REPETITION AT INTERVALS OF APPROX-
ItNIATELY 1 9/ 16 INCHES.. USUALLY THE MARKS HAVE A CHARACTERISTIC
..SPIDER LIKE APPEARANCE OF FINE LINES EMANATING FROM A COP ]11101J
CENTER. THE MARKS ARE OFTEN ASSOCIATED WITH ASINGLE FINE
EMULSION SCRATCH THAT-BEGINS WEAR THE START OF SCAN AND TERMINATES
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JUST BEFORE THE END OF SCAN. ,THE SCRATCH IS INTERRUPTED BY THE
SPIDER MARKS.
THE MARKS AND SCRATCHES ARE-NOT OBSERVED IN THE HORIZON
FORMAT AREA. IN ADDITION, THE FWD-LOOKING CAMERA RECORD
EXHIBITS A PLUS DENSITY MARK-APPROXIMATELY 0.0.1 INCH IN SIZE
REPEATING AT INTERVALS OF 25/16 INCHES. SIMILAR MARKS IN
THE FWD LOOKING CAMERA RECORD'ARE SOFT IN APPEARANCE AND ARE
NOT ASSOCIATED WITH A COMMON SCRATCH. ALL MARKING HAS OCCURRED
RANDOMLY THROUGHOUT BOTH MISSION SEGMENTS. AT THE START OF THE
MISSION, NO MARKS WERE PRESENT IN EITHER THE FWD OR AFT CAMERA
PHOTOGRAPHY. CAUSE: MARKING APPEARS TO BE AN ELECTRO-STATIC
DISCHARGE ASSOCIATED WITH FOREIGN PARTICLE BUILD-UP ON VARIOUS
ROLLER SURFACES. THE'SCRATCHES NOTED IN THE AFT CAMERA RECORD
APPEAR TO BE RELATED TO THE STATIC DISCHARGE MARKS. ACTION:
.CONTINUED ATTENTION TO CLEANLINESS. PRIOR TO FLIGHT. PARTICLES CARRIED
BY FILM CANNOT BE COMPLETELY ELIMINATED.
'I. ANOMALY: A WAVY PLUS DENSITY (PLUS D) STREAK IS PRESENT
INTERMITTENTLY THROUGHOUT THE MATERIAL FROM THE FWD AND AFT
CAMERAS FROM MISSIONS 1105-1 AND 2. THE STREAK IS APPROXIMATELY
0.2 TO 0.3 INCHES WIDE. IN ADDITION, PHOTOGRAPHY FROM THE FWD
CAMERA, NSN. 1105-2, CONTAINED AN INTERMITTENT MINUS DENSITY
(MINUS D) STREAK APPROXIMATELY 0.2 INCHES WIDE.'DEGRADATION TO
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THE.IMAGERY IS MINOR IN BOTH CASES. CAUSE: NORMAL AIR TWISTS
IN THE CAMERA FILM PATH INDUCE BUCKLES IN THE FILM THAT CAUSE
STRAIN SENSITIZATION-AND DESENSITIZATION. IN PARTICULAR,
THE AIR TWIST FROM THE SUPPLY CASSETTE TO THE INPUT NOD ROLLER
ON THE FWD INSTRUMENT AND THE SHORT FILM TWIST LOCATED ON THE
OUTPUT SIDE OF THE SHUTTLE ASEMBLIES, ARE CONSIDERED THE MOST
LIKELY AREAS OF STRAIN INDUCED MARKING.. THIS ANOMALY IS PECULIAR
TO THE' USE OF (UTB) SO-380 FILM. ACTION: LENGTHENING THE AIR
TWIST ON THE OUTPUT SIDE OF THE SHUTTLE ASSEMBLY AND INCREASING
PATCH LENGTH IN THE AREA OF THE WING BRACKET AND CONSTANT
TENSION ASSEMBLY ON THE FWD LOOKING INSTRUMENT WITH EFFECTIVITY
ON CR-8 AND UP IS EXPECTED TO ELIMINATE FILM STREAKING WITH
UTB FILM. PLUS DENSITY STREAKING WAS CHARACTERISTIC OF THE
FWD AND AFT LOOKING CAMERAS DURING PRE-FLIGHT TESTING WITH SO-380
UTB FILM.
-J. ANOMALY: DENDRITIC STATIC IS PRESENT ALONG THE FILM
EDGES OF A YEW FRAMES OF THE FWD AND AFT LOOKING CAMERA RECORDS OF.
BOTH MISSION SEGMENTS. IN MOST CASES, STATIC MARKING IS OUTSIDE
THE ACTIVE FORMAT AREA. CAUSE: THESE.MARKS ARE CHARACTERISTICS OF
STATIC DISCHARGE BETWEEN THE FILM EDGE AND EITHER ROLLER OR SPOOL'
FLANGES DURING SYSTEM OPERATION OF DEFILMING.
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ACTION: THIS STATIC IS CHARACTERISTIC OF THE SYSTEM AND REQUIRES
CONTINUAL MONITORING TO MINIMIZE ITS EFFECT.
K. ANOMALY:. A MINOR LIGHT LEAK FOG BAND LOCATED WITHIN TWO
INCHES OF THE TAKE-UPEND OF THE FORMAT.APPEARS ON THE FIRST
FRAME OF BOTH PAN CAMERAS ON A FEW PASSES. OCCASIONALLY OTHER
FRAMES WITHIN A PASS WERE SIMILARLY AFFECTED. THE DEGRADATION
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IS VERY MINOR. CAUSE: THESE FOG PATTERNS..RESULT FROM THE
UNIQUE LOCATION OF THE STEERING ROLLERS AT THE ENDS OF THE.
FORMATS ON THIS SYSTEM (CR-5). IMAGE-FORMING LIGHT PASSED
THROUGH THE FILM IN THE PLATEN AND STRUCK FILM OF THE FOLLOWING
FRAME JUST ABOVE THE HORIZON CAMERA GUIDE ROLLERS. ACTION:
NO ACTION IS REQUIRED.
L. ANOMALY: MINUS DENSITY SPOTS ON ORIGINAL NEGATIVE
OF 1105-2. CAUSE: INFREQUENT, RANDOM MINUS DENSITY SPOTS
RANGING IN SIZE FROM .025 TO .050 INCH WERE.OBSERVED ON BOTH THE
SO-380 AND 3404 FILM. THESE SPOTS. CONTAIN NO IMAGERY.
THE CAUSE OF THIS ANOMALY IS CURRENTLY UNKNOWN. PROBABLE
CAUSES INCLUDE DESENSITIZATION WITHIN THESE AREAS, OR FOREIGN
MATERIAL ON THE SURFACE OF THE-FILM-PREVENTING-PENETRATION
OF THE VISCOUS DEVELOPER. ACTION: F____]CONTINUE EVALUATING
PAGE 4 5212 T O P S E C R E T.
POTENTIAL- CAUSES OF THIS ANOMALY.
.6. COMMENTS:
A. THE MISSION CONTAINED 500 FEET OF AERIAL COLOR FILM TYPE
SO-121 AT THE END OF THE AFT CAMERA SUPPLY. THE EXPOSURE AND COLOR
BALANCE OF THE SO-121-WERE GOOD. THE IMAGE QUALITY.OF THE SO-121
RECORD WAS EXTREMELY VARIABLE, AND RANGED FROM GOOD TO VERY POOR..
THE AMOUNT OF GOOD QUALITY IMAGERY-IS LIMITED AND IS GENERALLY
RESTRICTED TO THE EDGES AND ENDS OF-THE FORMAT. -THE CENTER
PORTION OF THE FORMAT IS GENERALLY POOR. THIS CONDITION WOULD
APPEAR TO HAVE BEEN CAUSED BY THE FILM BEING CURLED AWAY FROM
THE FOCAL PLANE DURING EXPOSURE. THE BEST IMAGERY APPEARS TO
BE COMPARABLE TO THE BEST THAT COULD BE ACHIEVED WITH THE
CORONA CAMERA AND SO-121 FILM.-'THE BEST GROUND RESOLVED
DISTANCE IS ESTIMATED TO BE ABOUT 15 TO 20 FEET. PRE-LAUNCH
SYSTEM TESTING INDICATED THAT A POTENTIAL 15 FEET GRD (LOW CONTRAST)
COULD HAVE BEEN ACHIEVED. WHILE BOTH GLOW AND DENDRITIC TYPE STATIC
MARKING-PATTERNS WERE EVIDENT ON THE SO-121, THEY ARE EXTREMELY
MINOR IN NATURE. -
B. A 50 FOOT STRIP OF.FILM TYPE 3404 WAS INCLUDED
BETWEEN THE SO-380 AND SO-121. THE PURPOSE OF INCLUDING THIS
STRIP WAS TO PROVIDE A MORE GRADUAL CHANGE IN FILM THICKNESS
WHEN PROCEEDING FROM THE UTB TO THE THICKER SO-121. UNFORTUNATELY,
THE 34.04 STRIP DOESE NOT PROVIDE ANY CONCLUSIVE. EVIDENCE THAT
PAGE 5 52 12 TF 0 P S E C R E T
WILL ASSIST IN THE ANALYSIS OF THE UTB ANOMALY. WHILE THE IMAGE
QUALITY VARIABILITY OF THE 3404 STRIP WAS LESS THAN THAT OF, THE
.SO-380, ITS GENERAL IMAGE QUALITY WAS COMPARABLE..- FURTHER,
ANALYSIS OF THE 3404 WAS HAMPERED BY FILM TENSION CONSIDERATIONS;
BY A LACK OF CULTURAL IMAGERY; AND BY AN APPARENT HAZE CONDITION
OVER THE ENTIRE AREA EXPOSED ON THE.3404. IN.ADDITION,
IT CANNOT BE STATED THAT THE 3404.SHOULD HAVE BEEN CONSIDERABLY BETTER,
IN ANY EVENT, AS IT WAS LOADED ON THE AFT CAMERA SUPPLY.
AS WAS POINTED OUT IN SECTION 4, THE AFT-CAMERA HAD A SECOND
GENERATION LENS WHICH POSSES SIGNIFICANTLY GREATER TOLERANCE
TO FILM LIFT CHANGES.
C. OBSERVATIONS SUGGEST FILM PLANE VARIATIONS DURING
FLIGHT BUT THESE ARE NOT FULLY VERIFIED
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(1) A FILM TENSION CHANGE BETWEEN 1105-1 AND 1105-2
MAY. HAVE CAUSED THE NOTICEABLE.IMPROVEMENT OF 1105-2 FWD
IMAGERY, E.G., THE FIFTH FRAME ANOMALY DISAPPEARED.
(2) RUB MARKINGS'ON THE BACK OF THE FILM BASE INDICATES
GREATER THAN NORMAL BUCKING.
(3) IMAGE QUALITY CHANGE ACROSS THE WEB SUGGEST GREATER
LIFT AT THE FORMAT CENTER LINE.
(4) REDUCED SMEARING-OF IMAGERY ON THE 50 FOOT .340/4'
FILM SECTION WHEN COMPARED WITH ADJOINING UTB WAS APPARENT.
(5) A DIFFERENTIAL MOISTURE LOSS ACROSS THE FILM WEB,
DUE TO OUTGASSING OF THE FILM MAY HAVE CAUSED FILM BUCKLE.-
(6) RAIL SCRATCHING WAS SIGNIFICANTLY LESS THAN NORMALLY
ENCOUNTERED.
T 0 P S E C R E T
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