Instrumentation and some results of photographic study on board the Mars-4 and Mars-5 automatic stations

Details Instrumentation and some results of photographic study on board the Mars-4 and Mars-5 automatic stations Instrumentation and some results of photographic study on board the Mars-4 and Mars-5 automatic stations

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975stin...7524623s&link_type=abstract

Instrumentation and some results of photographic study on board the Mars-4 and Mars-5 automatic stations NASA Transl. into ENGLI

Computer Science

Mars Probes, Mars Surface, Photographic Equipment, Television Cameras, Equipment Specifications, Image Filters, Photographic Processing, Spectrum Analysis

Scientific paper

The phototelevision system of the Mars-4 and Mars-5 planetary probes and the results obtained are described. The system contains two phototelevision units which differ only by the focal lengths of their camera -- 50 and 350 mm -- to operate with resolutions of 700 and 100 m, respectively. The short-focal-length camera was equipped with four interchangeable filters: red, green, blue, and orange; while the long focal length camera had an orange filter only. Functionally, each unit contains operational programs with commands from the earth. Composition of the phototelevision unit is shown schematically, and its operation is explained. All technical parameters are tabulated. The photographs obtained (frame size: 23 x 22.5 sq mm) were transmitted for preliminary viewing with a scanning resolution of 250 x 250, and some had a nominal scanning resolution of 1000 x 1000. A table is included for all photographs made by the various units and resolutions transmitted, as well as two sample photographs.

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