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Atmospheric Structure Instrument (ASI)

NSSDC ID: 1989-084E-02
Mission Name: Galileo Probe
Principal Investigator: Dr. Alvin Seiff

Description

The objective of this investigation is to determine temperature, pressure, density, and molecular weight over an altitude range from a threshold of about 1000 km above the cloud deck down to Probe failure (deeper than 10-bar pressure). The instrument package consists of acceleration, temperature, and pressure sensors and associated electronics. The package is mounted in the Probe with the accelerometers near the Probe's center of gravity. The temperature-sensing head and pressure inlet are deployed outside the Probe boundary layer. The total mass is 1.9 kg and the total continuous power is 5.5 W.

Facts in Brief

Mass: 0.54 kg
Power (avg): 3.8 W
Bit rate (avg): 0.018 bps

Discipline

  • Planetary Science: Atmospheres

Additional Information

Questions or comments about this experiment can be directed to: Dr. Edwin V. Bell, II.

 

Personnel

Name Role Original Affiliation E-mail
Dr. Alvin Seiff General Contact NASA Ames Research Center aseiff@mail.arc.nasa.gov
Dr. Gerald Schubert Co-Investigator University of California, Los Angeles gschubert@astemis.ucla.edu
Mr. John D. Mihalov Co-Investigator NASA Ames Research Center mihalov@windee.arc.nasa.gov
Mr. S. C. Sommer Co-Investigator NASA Ames Research Center  
Dr. Donn B. Kirk Co-Investigator NASA Ames Research Center  
Mr. Robert C. Blanchard Co-Investigator NASA Langley Research Center r.c.blanchard@larc.nasa.gov
Dr. Richard E. Young Co-Investigator NASA Ames Research Center reyoung@mail.arc.nasa.gov
Mr. Tony C.D. Knight Co-Investigator Martin-Marietta Aerospace  

Selected References

Pollack, J. B., et al., Retrieval of a wind profile from the Galileo probe telemetry signal, Space Sci. Rev., 60, No. 1/4, 143-178, May 1992.

Seiff, A., and T. C. D. Knight, The Galileo probe atmosphere structure instrument, Space Sci. Rev., 60, No. 1/4, 203-232, May 1992.

Seiff, A., et al., Structure of the atmosphere of Jupiter: Galileo probe measurements, Science, 272, No. 5263, 844-845, May 1996.

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