Computer Science – Sound
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990plr....10c...5b&link_type=abstract
Planetary Report (ISSN 0736-3680), vol. 10, May-June 1990, p. 5-8.
Computer Science
Sound
Balloons, Mars Observer, Radio Relay Systems, Balloon Sounding, Cameras, Gondolas, Infrared Reflection, Spacecraft Power Supplies
Scientific paper
The characteristics of the French Mars Balloon designed to fly on the Soviet Mars 1994 mission is described, with particular attention given to the relay system to be carried by the Mars Observer orbiting the planet. The balloon will carry an instrumented gondola to measure the atmosphere and to image the surface. During the day (as sunlight warms the gases within the balloon) the balloon will ascend and drift with the winds, covering more ground than is possible with a robotic surface rover, and at night, it will sit on the ground. The operational outline of the Mars Balloon relay system, which will pass information from the Mars Balloon back to earth, is similar to that of the EOLE project: the French box on the Mars Observer will send a signal that will trigger the electronic package aboard the balloon, which will reply at 128 kilobits/sec. The balloon gondola will empty its 32-megabit memory of data collected since the last pass and will then send images of what it is seeing at that moment.
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