Probing Titan's atmosphere with a stellar occultation

Details Probing Titan's atmosphere with a stellar occultation Probing Titan's atmosphere with a stellar occultation

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991plas.rept..161h&link_type=abstract

In NASA, Washington, Reports of Planetary Astronomy, 1991 p 161 (SEE N92-12792 03-89)

Astronomy and Astrophysics

Astronomy

Aerobraking, Cassini Mission, Satellite Atmospheres, Scintillation, Stars, Stellar Occultation, Titan, Charts, Observatories, Universal Time

Scientific paper

The 3 July, 1989 occultation of 28 Sgr by Titan is discussed. The star was readily detectable throughout the occultation, reaching a minimum normalized flux of about 0.05. The occultation probed Titan's atmosphere in a region not studied by the Voyager spacecraft. The region is important for the aerobraking of Titan entry probes, and direct information about its properties is important for the Cassini mission. Occultation data (normalized stellar flux vs universal time) is shown in chart form for NASA supported stations, along with data from a collaborating group at the Wise observatory in Israel. Strong scintillation data of the star is noticeable in the data records, and provides information on waves/turbulence in Titan's high atmosphere.

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