EVALUATION OF MISSION GT 67-46

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B03817A000100010025-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: March 14, 2007
• Sequence Number: 25
• Publication Date: April 3, 1967
• Content Type: CABLE

Approved For Re ase 2007/03/14: CIA-RDP78B03817 0100010025-6
eclassific tion F,e ?ie by NG
S E C R E T 032128Z CITE
PRIORITY
0UT61600
0265 1,167 r, R 3 21 3 Z
< C 7
4 111
SUBJECT: EVALUATION OF MISSION GT 67-46
MISSION GT 67-46 WAS A TEST MISSION FLOWN ON 9 FEBRUARY
1
.
1967 EMPLOYING THE T-35 TRACKER CAMERA (NO. S-213) IN THE U-2
A/C. TYPE 3404 FILM WAS USED IN CONJUNCTION WITH A 0.075 INCH
SLIT AND o LENS SETTING OF F/3.8. THE MISSION WAS FLOWN OVER
7j
2. AN EVALUATION OF THE NEGATIVE INDICATES THE FOLLOWING:
A. THE BASIC EXPOSURE APPEARS TO HAVE BEEN ADEQUATE; THE
DENSITY OF THE NEGATIVES INDICATE MATERIAL APPEARS TO HAVE
BEEN OVER DEVELOPED.
B. THE INTERVAL OF EXPOSURE (30 SEC.) WAS CONSTANT
57 PER CENT.
THROUGHOUT THE MISSION AND THE FORWARD OVERLAP IS APPROXIMATELY
C. THE MATERIAL WAS NOT DEGRADED BY THE WINDOW FOGGING
THAT WAS PREVELANT ON EARLIER MISSIONS.
D. THE EDGES OF THE FORMAT (FORWARD AND AFT) ARE NOT
OF FOCUS; ON EARLIER MISSIONS THIS OUT-OF-FOCUS AREA EXTENDED
CRITICALLY SHARP. APPROXIMATELY 0.15" ON EITHER SIDE IS OUT
0.25 TO 0.30 INTO THE FORMAT.
 Approved For Release 2007/03/14: CIA-RDP78BO3817A000100010025-6
Im"
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E. THE MECHANICAL FRAME COUNTER AND CLOCK OPERATED
PROPERLY AND ARE ADEQUATELY RECORDED ON ALL FRAMES.
F. THE IMAGERY PROVIDES 25 TO 30 FEET OF GROUND RESOLUTION
OVER THE
I I
K PLUS 20. LESS THAN OPTIMUM PROCESSING CAUSED GRAIN CLUMPING
AND HIGHER DENSITIES THAN ARE NORMAL FOR THIS SCALE OF PHOTO-
GRAPHY. THE LOW ALTITUDE IMAGERY ACQUIRED DURING ASCENT AND
DESCENT PORTION OF THE MISSION ARE EXCEPTIONALLY GOOD. NO
SMEAR WAS DETECTED AT 15X MAGNIFICATION.
G. CLOUDS OBSCURE APPROXIMATELY 65 PER CENT OF THE
MISSION.
S E C R E T
(FRAMES 431-434) WHERE THE ALTITUDE IS