NOAO >   Observing Info >   Approved Programs >   2012A-0182

Small NOAO Logo

Proposal Information for 2012A-0182


PI: Robert S. McMillan, University of Arizona, bob@lpl.arizona.edu
Address: Lunar & Planetary Lab. & Steward Obs., 1629 East University Blvd., Tucson, AZ 85721-0092

CoI: Amy Mainzer, JPL/CalTech
CoI: Jeff Larsen, U. S. Naval Academy
CoI: Jim Scotti, University of Arizona
CoI: Joe Masiero, JPL/CalTech
CoI: James Bauer, JPL/CalTech
CoI: Tommy Grav, Johns Hopkins University

Title: Astrometry and Multicolor Taxonomic Photometry of Near-Earth Objects Detected by WISE

Abstract: Telescope time is requested to do astrometry and photometry of carefully selected Near-Earth Objects (NEOs) previously detected by the WISE all-sky thermal infrared (IR) survey. As an infrared survey, WISE was more efficient at finding low albedo solar system objects than ground based surveys, nearly doubling the known population of low albedo NEOs. Albedo-outliers may represent hitherto unexplored populations and may reveal characteristics of the evolution of the solar system not yet recognized. Also, delivery of asteroids from the main belt to Earth- crossing orbits depends on physical properties such as albedo, size, & composition. Measurements of mineralogical classes will refine understanding of the filtering involved in asteroid transport. Astrometry of our targets will refine knowledge of their orbits and ensure later recovery. High signal-to-noise ratio (SNR) R-band photometry on a calibrated magnitude scale establishes the albedo near the peak of incident solar flux, which reckons centrally in modeling thermal properties. BVRI colors allow us to determine approximate taxonomic types.


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 >   2012A-0182

noaoprop-help@noao.edu

Small NOAO Logo