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Infrared Radiometric Data of Venus (Digitized)


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


This collection consists of the digitization of two published papers by the principal investigator and colleagues. The papers contain results and the reduced data obtained for the IR Radiometer experiment during the flyby of Venus on 5 February 1974. The meager data obtained for Venus were mainly used for calibration of Mercury data obtained in the mission. In the publications the results are presented as graphs of (1) the 45 micrometers intensity vs Venusian longitude, (2) Venus coordinates of the viewed point on the planet, (3) temperature vs height above surface, (4) radiance measurements for both 11 and 45 micrometers channels vs longitude and vs cos phi, (5) difference between the measured radiance at 45 micrometers and the limb-darkening law vs long., (6) optical depth vs height above surface for both channels, and (7) cloud particle density vs height above the surface. Brightness temperature, opaqueness, limb-darkening, and implications are given. The two papers are: Chase, S. C., et al., Preliminary infrared radiometry of Venus from Mariner 10, Science, v. 183, pp. 1291-1292, 1974; and Taylor, F. W., Interpretation of Mariner 10 infrared observations of Venus, J. Atmos. Sci., v. 32, pp. 1101-1106, 1975. The NSSDCA reference numbers for these publications are B20755 and B30189, respectively. These and other data are also held by E. D. Miner, Jet Propulsion Laboratory, Pasadena, California, to whom requesters are referred.

For this digitization effort each frame on source microfiche PSPA-00006, which contains both papers in tandem, was scanned at a resolution of 400 dots per inch and output as one TIFF file. This collection contains the resulting TIFF files and for each paper a multipage PDF file of merged TIFF files.


  • National Space Science Data Center


  • Planetary Science: Atmospheres
  • Planetary Science: Geology and Geophysics

Additional Information



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