Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986inns.iafct....r&link_type=abstract
IAF, International Astronautical Congress, 37th, Innsbruck, Austria, Oct. 4-11, 1986. 5 p. NASA-supported research.
Astronomy and Astrophysics
Astronomy
Comets, Deep Space Network, Ground Support Systems, International Sun Earth Explorer 3, Spacecraft Tracking, Antenna Arrays, Giacobini-Zinner Comet, International Cooperation, Radio Astronomy
Scientific paper
The tracking of the ICE spacecraft at its encounter with the comet Giacobini-Zinner posed a major problem for the Deep Space Network (DSN). At the comet, ICE was nearly 50 times as distant from the earth as it was during its designed mission. Its signal strength at the ground was diminished by almost 2500 times from its designed level. The paper describes how the DSN met this challenge by combining antennas in arrays and cooperating with the Arecibo Observatory in Puerto Rico and the Usuda 64m antenna in Japan.
Farquhar Robert
Layland James W.
Martin Lane W.
Reid Macgregor S.
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