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U.S. Department of Energy
Office of Scientific and Technical Information

SNAP 19 Viking Program. Bimonthly technical progress report, October 1979-November 1979

Technical Report ·
DOI:https://doi.org/10.2172/5284287· OSTI ID:5284287
Monitoring and evaluation of Viking 1 Lander power system data continued. The RTG series power range as measured at the PCDA was 65 to 68 watts at fin root temperatures between 280/sup 0/F and 310/sup 0/F. The Mars landed performance history of Viking 1 include both the minimum and maximum data for each of the SOL days. Monitoring and evaluation of Viking 2 Lander power system data continued. The RTG series power range as measured at the PCDA was 71 to 72 watts at fin root temperatures between 230/sup 0/F and 260/sup 0/F. The Mars landed performance history of Viking 2 include both the minimum and maximum data for each of the SOL days. The performance of both power systems continues to be very satisfactory. Power system performance data for Pioneer 10 and Pioneer 11 spacecraft were monitored through the reporting period. The estimated RTG system net power was 116 watts for Pioneer 10 and 118 watts for Pioneer Saturn. The September 1 encounter with Saturn appears to have had no deleterious effect on the RTG's of the spacecraft power system. The telemetry signals from both spacecrafts remain satisfactory.
Research Organization:
Teledyne Energy Systems, Timonium, MD (USA)
DOE Contract Number:
AC01-80ET32066
OSTI ID:
5284287
Report Number(s):
TES-32066-1; ON: DE84010252
Country of Publication:
United States
Language:
English