Lightcurve Analysis of (8639) 1991 GR
Abstract
CCD photometry observations of the Eunomia member asteroid (8369) 1991 GR were made at the Palmer Divide Observatory and Center for Solar System Studies in 2011 March. Analysis using a single period search found a synodic period of 2.7368 ± 0.0001 h and lightcurve amplitude of 0.24 ± 0.02 mag. A dual-period search found a weak secondary period (assuming a bimodal lightcurve) of 49.24 ± 0.16 h. Subtracting this period noticeably improved the RMS fit of the short-period component.
- Publication:
-
Minor Planet Bulletin
- Pub Date:
- October 2011
- Bibcode:
- 2011MPBu...38..209W