Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975aiaa.confq....s&link_type=abstract
American Institute of Aeronautics and Astronautics and American Geophysical Union, Conference on the Exploration of the Outer Pl
Astronomy and Astrophysics
Astronomy
Atmospheric Entry, Jupiter Probes, Mission Planning, Planetary Atmospheres, Spacecraft Trajectories, Flyby Missions, Measuring Instruments, Outer Planets Explorers, Payloads
Scientific paper
We have developed a statistical method for reconstructing atmospheric properties from planetary entry measurements. The objective is to determine the operational requirements of the basic science payload: accelerometer, pressure gage, temperature gage and mass spectrometer. Shallowentry trajectories into Jupiter's atmosphere are analyzed to provide illustrative examples. It was found that the important source of error in atmospheric properties profiles is the error in trajectory reconstruction. Sampling rates and quantization level were found to be only a minor influence in this respect. The overall accuracy of the instruments is improved by utilizing the doppler information in the telemetry signal to refine the trajectory determination.
Pearson D. J.
Sedwick J. L.
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