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ADVANTAGES OF SEARCHING FOR ASTEROIDS FROM LOW EARTH ORBIT: THE NEOSSat MISSION
Authors:A R HILDEBRAND  K A CARROLL  E F TEDESCO  D R FABER  R D CARDINAL  J M MATTHEWS  R KUSCHNIG  G A H WALKER  B GLADMAN  J PAZDER  P G BROWN  S M LARSON  S P WORDEN  B J WALLACE  P W CHODAS  K MUINONEN  A CHENG
Institution:(1) Department of Geology and Geophysics, University of Calgary, 2500 University Drive NW, Calgary, AB, Canada, T2N 1N4;(2) Dynacon Inc., 3565 Nashua Drive, Mississauga, ON, Canada, L4V 1R1;(3) University of New Hampshire, Space Science Center, 39 College Road, Durham, New Hampshire, 03824, USA;(4) Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC, Canada, V6T 1Z1;(5) National Research Council of Canada, Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC, Canada, V9E 2E7;(6) Department of Physics and Astronomy, The University of Western Ontario, London, Canada, ON, N6A 3K7;(7) Lunar and Planetary Laboratory, University of Arizona, Tucson, 85721, AZ, USA;(8) Department of Astronomy and Steward Observatory, , 933 Cherry Avenue, Tucson, 85721-0065, AZ, USA;(9) Defence Research & Development Canada, 3701 Carling Ave., Ottawa, ON, Canada, K1A 0Z4;(10) Jet Propulsion Laboratory, California Institute of Technology, Pasadena, 91109, CA, USA;(11) Observatory, Kopernikuksentie 1, University of Helsinki, P.O. Box 14, FIN-00014 , Finland;(12) Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, 20723, MD, USA
Abstract:Space-based observatories have several advantages over ground-based observatories in searching for asteroids and comets. In particular, the Aten and Interior to Earth’s Orbit (IEO) asteroid classes may be efficiently sought at low solar elongations along the ecliptic plane. A telescope in low Earth orbit has a sufficiently long orbital baseline to determine the parallax for all Aten and IEO class asteroids discovered with this observing strategy. The Near Earth Object Space Surveillance Satellite (NEOSSat) mission will launch a microsatellite to exploit this observing strategy complementing ground-based search programmes.
Keywords:Asteroid  asteroid searching  Aten  IEO  microsatellite mission  NEOs  NEOSSat spacecraft  NESS project  observing parallax
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