Physics
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jhatd..23...46h&link_type=abstract
Johns Hopkins APL Technical Digest, Vol. 23, No. 1, p. 46 - 57 (January - March 2002). In: NEAR Shoemaker at Eros
Physics
Space Missions, Minor Planets
Scientific paper
The Near Earth Asteroid Rendezvous spacecraft performed a 1-year orbital mission around asteroid 433 Eros until 12 February 2001. The mission consisted of daily science data collection events and occasional orbit correction maneuvers, and culminated with a controlled descent and soft landing on the asteroid's surface. These events all required meticulously planned, simulated, and executed spacecraft pointing scenarios. An advanced guiding and control system and a high-fidelity visual planning tool were critical for these operations as was the close interaction among the imaging scientists, the guidance and control engineers, and the navigation team. These teams used detailed truth models of both the spacecraft and asteroid environments. Of particular interest was the controlled descent to Eros' surface, which consisted of pointing and thrusting events simultaneous with image collection. The unexpected survival of the spacecraft on landing permitted the collection of telemetry data pertaining to the final resting attitude.
Harch Ann P.
Heyler Gene A.
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