IN GENERAL THE INFORMATION LOSS IN SHADOW AREAS OF MISSION

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04558A000400110001-5
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 1
• Document Creation Date: December 28, 2016
• Sequence Number: 1
• Content Type: CABLE

Approved For Release 2008/01/07: CIA-RDP78BO4558A000400110001-5
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1. IN GENERAL, THE INFORMATION LOSS IN SHADOW AREAS OFFS I AD
SIOIN 1026 FOR SOLAR ELEVATIONS OF 20 DEGREES AND ABOVE IS
NORMAL, SIMILIAR TO OTHER RECENT MISSIONS.
2. LOSS OF INFORMATION IN SHADOW AREAS FOR SOLAR ELEV
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3. THE CONDITION OF APPARENT GRAININESS ASSOCIATED WITH LOIlkaltlzed
EXPOSURE LEVELS IS MORE PREVALENT IN CLOUD SHADOW AREAS OF MIS-
SION 1026 THAN IN PREVIOUS MISSIONS.
4. IT IS FELT THAT THE IMAGE QUALITY OF THE AREAS WITH LEAST
EXPOSURE, WHETHER DUE TO LOW SOLAR ELEVATION, CLOUD SHADOW OR A
COMBINATION OF BOTH, WOULD HAVE BEEN ENHANCED BY MORE EXPOSURE.
FURTHERMORE, AN INCREASE IN EXPOSURE LEVEL WOULD-HAVE PERMITTED
MORE PROCESSING AT THE PRIMARY AND INTERMEDIATE LEVELS THUS
RESERVINGTHE FULL LEVEL FOR AREAS OF LEAST EXPOSURE.
S E C R E T
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Declassification Review by NGA
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Approved For Release 2008/01/07: CIA-RDP78BO4558A000400110001-5