Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm...p31a01a&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #P31A-01 INVITED
Physics
5499 General Or Miscellaneous
Scientific paper
The Mars global Surveyor spacecraft, which has returned more data about Mars than all previous missions, completed its planned mapping mission on January 31, 2001 and began a new era of continued exploration. During more than 10,000 revolutions it has returned > 75,000 images, a global topographic model better than for earth, a complementary gravity model, mapped the surface composition, and monitored the atmosphere. Our understanding of the roles of surface water, ground ice, sapping, channel formation and aeolian processes has been greatly advanced. During its extended mission priority will be placed on obtaining more detailed information on sites that may be used for the 2003 landed mission. Such information is important both to safe landing and intelligent selection of sites. The spacecraft will tilt up to 20 degrees from nadir (a ROTO) to obtain high-resolution image, altimetry, and IR mosaics over targeted areas. In addition, careful use of fuel is planned in order to provide radio relay support during the landing of the 2003 spacecraft.
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