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Digitally Processed 35-mm Negative Photography


Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)

Time span: 1967-09-12 to 1967-09-24


This data set consists of fifty-seven 35-mm first generation negatives produced after analog-to-digital conversion of data transmitted by the satellite. The majority of negatives show the magnet, but views of the footpad imprint, the area under vernier three, the alpha-scattering device, the area of crush block three, and the texture of the lunar surface are also included. Eight negatives are from the deblock and register (D+R) program, and 49 are from the sine wave response filter (SWRF) program. The D+R program adapts the analog-to-digital conversion output to a form more easily adaptable to processing operations. The program consists of 600 digital records written on magnetic tape at 800 bpi representing 600 picture lines. Each record normally contains 684 characters corresponding to the picture elements (pixels) within a line. This image is digitized only. The SWRF program is applied to the raw image and restores high frequency data (fine detail in picture) both in the horizontal directional along the camera scan lines and in the vertical direction. Pictures processed by SWRF will appear more noisy than the originals but will also be much sharper and show more detail.

Alternate Names

  • Photos, Processed 35mm


  • Planetary Science: Geology and Geophysics


  • 67-084A-01B

Additional Information



Questions and comments about this data collection can be directed to: Dr. David R. Williams



NameRoleOriginal AffiliationE-mail
Mr. J. Leon StrandGeneral ContactNASA Jet Propulsion Laboratory
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