Reflectance characteristics of the Viking lander camera reference test charts

Details Reflectance characteristics of the Viking lander camera reference test charts Reflectance characteristics of the Viking lander camera reference test charts

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975stin...7530511w&link_type=abstract

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Physics

Spaceborne Photography, Spectral Reflectance, Viking Lander Spacecraft, Bidirectional Reflectance, Calibrating, Channels (Data Transmission), Heat Measurement, Optical Scanners, Radiometers

Scientific paper

Reference test charts provide radiometric, colorimetric, and spatial resolution references for the Viking lander cameras on Mars. Reflectance measurements of these references are described, including the absolute bidirectional reflectance of the radiometric references and the relative spectral reflectance of both radiometric and colorimetric references. Results show that the bidirection reflectance of the radiometric references is Lambertian to within + or - 7% for incidence angles between 20 deg and 60 deg, and that their spectral reflectance is constant with wavelength to within + or - 5% over the spectral range of the cameras. Estimated accuracy of the measurements is + or - 0.05 in relative spectral reflectance.

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