International Near-Earth Asteroid Survey

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International Near-Earth Asteroid Survey
Survey typeAstronomical survey Edit this on Wikidata
TargetAsteroid, Near-Earth object Edit this on Wikidata

The International Near-Earth Asteroid Survey (INAS) was an astronomical survey, organized and co-ordinated by prolific American astronomer Eleanor Helin during the 1980s. It is considered to be the international extension of the Planet-Crossing Asteroid Survey (PCAS). While PCAS operated exclusively from the U.S. Palomar Observatory in California, INAS attempted to encourage and stimulate worldwide interest in asteroids, and to expand the sky coverage and the discovery and recovery of near-Earth objects around the world.[1][2]

The IAU's Minor Planet Center credits INAS with the discovery of 8 minor planets in 1986 (compared to 20 discoveries made by PCAS during 1993–1994).[3] One of the discoveries was the 7-kilometer sized main-belt asteroid 4121 Carlin.[4]

See also[edit]


  1. ^ "Featured profile: Eleanor Francis Helin". WITI Hall of Fame. Retrieved 15 March 2016.
  2. ^ Helin, Eleanor (March 2000). "The NEAT Asteroid Search Program". "BIG BEAR" - Photometry and CCD Symposium - May 20-22 (79): 19". Bibcode:2000IAPPP..79...19H. Retrieved 15 March 2016.
  3. ^ "Minor Planet Discoverers (by number)". Minor Planet Center. 24 February 2016. Retrieved 15 March 2016.
  4. ^ "4121 Carlin (1986 JH)". Minor Planet Center. Retrieved 15 March 2016.

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