NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos
Abstract
We present preliminary diameters and albedos for 7956 asteroids detected in the first year of the NEOWISE Reactivation mission. Of those, 201 are near-Earth asteroids and 7755 are Main Belt or Mars-crossing asteroids. 17% of these objects have not been previously characterized using the Near-Earth Object Wide-field Infrared Survey Explorer, or “NEOWISE” thermal measurements. Diameters are determined to an accuracy of ∼20% or better. If good-quality H magnitudes are available, albedos can be determined to within ∼40% or better.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 2015
- DOI:
- 10.1088/0004-637X/814/2/117
- arXiv:
- arXiv:1509.02522
- Bibcode:
- 2015ApJ...814..117N
- Keywords:
-
- minor planets;
- asteroids: general;
- Astrophysics - Earth and Planetary Astrophysics
- E-Print:
- 42 pages, 5 figures