NOAO >   Observing Info >   Approved Programs >   2018A-0185

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Program Information for 2018A-0185


PI: Larry Lebofsky, U. of Arizona, lebofsky@lpl.arizona.edu
Address: Department of Astronomy, 933 North Cherry Avenue, Rm. N204, Tucson, AZ 85721-0065 USA

CoI: Robert W Crawford, Rincon Ranch Observatory
CoI: Mark Trueblood, Winer Observatory
CoI: David J Bell, NOAO

Title: Recovery of Potentially Hazardous Asteroids

Abstract: We seek to use the LCO 2-m telescopes to obtain astrometric observations of Virtual Impactors (VIs), which are Near Earth Objects (NEOs) that have the potential to impact Earth in future years. One VI is very large (500--1200m in diameter) and, because of its size and destructive potential, warrants recovery and continued observation during the forthcoming apparition to improve knowledge of its orbit. The second VI is large (70--160m in diameter) and likely 100 times the mass of the Chelyabinsk object. With its recovery at >=1 orbital periods from discovery, a greatly improved assessment of the Earth impact risk will be possible. Outcomes range from removing it from the VI list (the most likely outcome) to its confirmation as a VI with greatly improved orbital elements and Earth impact risk assessments by JPL and NEODyS.

Program Type: Standard/Solar System

Scheduled Nights:
Run 1 (2018A):  LCO-2m/Spectral -- 2.5hrs


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2018A-0185

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