NASA NTRS · 20230003067
Asteroid Lightcurves From the Moa-Ii Survey: A Pilot Study
Abstract
The Microlensing Observations in Astrophysics (MOA-II) survey has performed high cadence, wide field observations of the Galactic Bulge from New Zealand since 2005. The hourly cadence of the survey during eight months of the year, across nearly 50 deg 2 of sky, provides an opportunity to sample asteroid lightcurves in the broad MOA-R filter. We perform photometry of a subset of bright asteroids numbered observed by the survey. We obtain 26 asteroid rotation periods, including for two asteroids where no prior data exist, and present evidence for the possible non-principal axis rotation of (2011) Veteraniya. This archival search could be extended to several thousands of asteroids brighter than 22nd magnitude.
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A J Cordwell, N J Rattenbury, M T Bannister, P Cowan, Fumio Abe, Richard Barry, David P Bennett, Aparna Bhattacharya, Ian A Bond, Hirosane Fujii, Akihiko Fukui, Yoshitaka Itow, Stela Ishitani Silva, Yuki Hirao, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Yasushi Muraki, Shota Miyazaki, Arisa Okamura, Clément Ranc, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Paul J Tristram, Taiga Toda, Hibiki Yama, Atsunori Yonehara. 2022-03-12. Asteroid Lightcurves From the Moa-Ii Survey: A Pilot Study. https://ntrs.nasa.gov/citations/20230003067
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