TD-4001 C RESEAU GRID FOR TERRAIN LENS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP66B00728R000400030012-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 1
• Document Creation Date: November 16, 2016
• Document Release Date: March 17, 2000
• Sequence Number: 12
• Publication Date: August 21, 1963
• Content Type: CABLE

Approved For felease 2000/05/04: CIA-RDP66d0728R000400030012-0
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SUBJ TD-4001 C RESEAU GRID FOR TERRAIN LENS
1. TD-4"101C HAS BEEN PREPARED TO INCORPORATE A RESEAU GRID PAT-
TERN TO, EE IMAGED ONTO TERr'AIN PHOTOGRAPHY DURING TERRAIN EXPOSURE.
2 . TD-4501 C DIRT CTS K`~)A.RFOR TO PRODUCE ONE RESEAL' GRID MEC-
ANIS'; FOR TERRAIN CAMERA USE TO BE INCORPORATED ON A-16 SYSTEM.
A. THE ?ESEAU GRID CHANISM'SHALL GENERATE A FIDUCIAL
PATTERN ON TERRAIN PHOTOGRAPHY BY- PROJECTING LIGHT ONTO THE
^AC{SIDE OF THE FILM FROM THE VACUUM PLATEN DURING TERRAIN EX-
P0SURE. i
R-. INA~G'ED FIDUCIALS SHALL NOT EXCEED 35 TO 500 MICRONS IN
DIAMETER 0`a FLIGHT FILM.
FICATI TO RECOVER POST EXPOSURE DIMENSIONAL CHANGES
I4 FILM FOR IMPROVED GROUND POSITIONAL ACCURACY.
25X1A 4. REQUESTS OU H ORDER OF MAGNITUDE COST (ROM) FROM
25X1A.
25X1A 5. - REQUESTS TECHNICAL APPROVAL OF TD-4001C FROM AFCCB
?tiEiinE:RS
25X1A
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DOCUMENT NO.
NO CHANGE tN CLASS.
E DECLASSIFIED
CLASS. CHANGED TO: TS S 0,.ad //
NEXT REVIEW DATE:
AUTH: HR 0.2
DATE: __" ' REVIEWEB::064544j
Approved For Release.2000/05/04: CIA-RDP66B00728R000400030012-0