NEOWISE REACTIVATION MISSION YEAR ONE: PRELIMINARY ASTEROID DIAMETERS and ALBEDOS

C. R. Nugent, A. Mainzer, J. Masiero, J. Bauer, R. M. Cutri, T. Grav, E. Kramer, S. Sonnett, R. Stevenson, E. L. Wright

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

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.

Original languageEnglish (US)
Article number117
JournalAstrophysical Journal
Volume814
Issue number2
DOIs
StatePublished - Dec 1 2015
Externally publishedYes

Keywords

  • asteroids: general
  • minor planets

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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