CAMERA INFORMATION FOR KEYHOLE MISSION 9009

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP78T04751A000600010007-2
Release Decision: 
RIPPUB
Original Classification: 
T
Document Page Count: 
9
Document Creation Date: 
December 28, 2016
Document Release Date: 
October 31, 2001
Sequence Number: 
7
Case Number: 
Publication Date: 
September 1, 1960
Content Type: 
REPORT
File: 
AttachmentSize
PDF icon CIA-RDP78T04751A000600010007-2.pdf366.28 KB
Body: 
No. Pages 8 TOP SECRET Copy No. ~9, Declass Review by NIMA / DoD PUBLISHED AND DISSEMINATED BY CENTRAL INTELLIGENCE AGENCY PHOTOGRAPHIC INTELLIGENCE CENTER Handle Via T~eLENT-KEYHOLE Control Channel Only WARNING This document contains classified information affecting the national security of the United States within the meaning of the espionage laws U.S. Code Title 18, Sections 793, 794, and 798. The law prohibits its transmission or the revelation of its contents in any manner to an unauthorized person, as well as its use in any manner prejudicial to the safety or interest of The United States or for the benefit of any foreign government to the detriment of the United States. It is to be seen only by U.S. Personnel especially indoctrinated and authorized to receive TALENT-KEYHOLE information. Its security must be maintained in accordance with KEYHOLE and TALENT regu- lations. ARCI'~.iVAL RECORD PLEASE RE ' '' ' TOP SECRET Approved For Release 2002/01/10 :CIA-RDP78T04751A000600~A10.,,~~=~~...%` SPECIAL HANDLING REQUIRED September 1960 Technical Publication CAMERA INFORMATION FOR KEYHOLE MISSION 9009 PIC/TP-5/60 Approved For Release ~O~1~1/1~:~78T04751A000600010007-2 SPECIAL HANDLING REQUIRED DISSEMINATION RESTRICTION This publication is to be disseminated only on a "MUST-KNOW" basis, in keeping with the provisions of TCS 3237-58 (ARC-M-82) as indicated by the SPECIAL HANDLING REQUIRED control stamp. The use of this publication is limited to personnel who require the information for mensuration purposes. Approved For Release 2002/01/10 :CIA-RDP78T04751A000600010007-2 Approved For Release 200~0~ P78T04751A000600010007-2 SPECIAL HANDLING REQUIRED CAMERA INFORMATION FOR KEYHOLE MISSION 9009 PIC/TP-5/60 SEPTEMBER 1960 Approved For Release 2002/01/10 :CIA-RDP78T04751A000600010007-2 Handle ,a TOP SECRET c ~+ o"Chan e" o~ y SPECIAL HANDLING REQUIRED Approved For Release 2 / DP78T04751A000600010007-2 SPECIAL HANDLING REQUIRED ' PIClTP-5/00 CAMERA INFORMATION FOR KEYHOLE MISSION 9009 This publication presents the technical information necessary for the reduction of quantitative data obtained from photography of Mission 9009. It is planned that a similar publication will be prepared for each future mission. This photography involves the use of three cameras: amain camera, a port horizon camera, and a starboard horizon camera. Thr. ee illustrations (Figures 1, 2, and 3) are included as pictorial supplements to the information in the text. The dimensions shown on Figure 3 may be used for film-shrinkage studies. The sign convention used is that in which the nadir offset will be provided. 1. Operational Focal Lengths A. Main lens 23.989 inches B. Port horizon lens 89.30 mm C. Starboard horizon lens 90.35 mm Definition: "Operational focal length" is defined as the distance from the main lens nodal point to the film plane as measured on the lens bench, and the data reduced for a vacuum condition. (Operational focal length is equivalent focal length corrected fo1- environment. ) 2. Lens Distortion A. Main lens -- at 3? radial, plus 0.012 mm. B. Port horizon lens -- at 10? radial, .000 mm; at 20` radial, plus .009 mm. C. Starboard horizon lens -- at 10? radial, .000 mm; at 20? ~-a- dial, plus .003 mm. 3. Depression Angle of Horizon Cameras A. Port horizon camera 14? 52' B. Starboard horizon camera 15? 00` Handl~~iOVed For Release 20~I1~~~I~,~DP78T04751A000600010007-2 c ~r o"Chan e"o~1y SPECIAL HANDLING REQUIRED Approved For Release 2002/r1~'~ :~t~78T04751A000600010007-2 SPECIAL HANDLING REQUIRED PIC!TP-5/60 Approved For Release 2002/01/10 :CIA-RDP78T04751A000600010007-2 T?P SECRET Control Chonnel Qnly SPECIAL HANDLING REQUIRED Approved For Release 20~/'SOEI~DP78T04751A000600010007-2 SPECIAL ;~IANDLIrlG REQUIRED PIC;'TP-5; b0 ------~ 15 c. 4. Image Motion Compensation Forward motion compensation is accomplished mechanically during the scan by causing the lens system to move opposite to the direction of flight during the scan and returning for the next cycle. The camera drive mechanism is such that there is a fixed me- chanical relationship between the forward motion compensation, the cycling rate, and the scanning rate. The relationship between the forward motion compensation and the cycling rate has been established fora 10% overlap condition at the nadir. Camera cycle time 2.402 seconds Ap~roved For Release 20~/1~E~DP78T04751A000600010007-2 Handle is c ~t o"Channel Only SPECIAL HANDLING REQUIRED Approved For Release 2002/~~ ~}~~78T04751A000600010007-2 SPECIAL HANDLING REQUIRED PIC/TP-5/60 Scan rate (constant) 71.628 inches/second IMC rate (parallel to flight direction) in inches /second = .787 Cos e where e is the displacement (expressed in degrees of arc) normal to the flight direction. For example, e will be zero degrees at the nadir and 35 ? at either end of the format. 5. Filter and Exposure Data A. B. Main lens - - filter, W ratten 21; aperture, f/5; exposure, 1 / 1, 000 second. Horizon lenses -- filter, Wratten 25; aperture, f/8; exposure, 1/200 second. 6. Resolution Capabilities A. Main lens -- at zero degrees, 100 lines per mm; at 18?, 97 lines per mm. B. Port horizon lens -- at zero degrees, 51 lines per mm; at 7.5?, 39 lines per mm; at 15?, 37 lines per mm. C. Starboard horizon lens -- at zero degrees, 44 lines per mm; at 7.5?, 39 lines per mm; at 15?, 34 lines per mm. -6- Approved For Release 2002/01/10 :CIA-RDP78T04751A000600010007-2 Handle Via TALENT-KEYHOLE TOP SECRET Control Channel Only SPECIAL HANDLING REQUIRED Approved For Release 2002101110 :CIA-RDP78T04751A000600010007-2 i t t TOP SECRET SPECIAL HANDLING REQUIRED FILM SUPPLY FILM POSITIVE EMULSION UP 1.024 ? 002" FILM TAKE UP Handle Via TALENT?KEYHOLE Control Channel Only VEHICLE MOTION PIC/TP-5/60 2., a' WIDTH OF FORMAT FILM TAB TI~SE FORMAT FOR FRAME SHOWN FILM SUPPLY TOP SECRET SPECIAL HANDLING REQUIRED Approved For Release 2002101110 :CIA-RDP78T04751A000600010007-2 TOP SECRET SPECIAL HANDLING REQUIRED ~~// TOP SECRET r SPECIAL HANDLING REQUIRED Ap roved For Release 2002/01/10 :CIA-RDP78T04751A000600010007-2 '