Asteroid lightcurve observations from 1981
Abstract
Results of photoelectric lightcurve observations from Table Mountain and Lowell Observatories are reported. The observations were made from May through December, 1981. We also include observations of 230 Athamantis made in 1974 from TMO and of 2100 Ra-Shalom made in 1978 from Lowell Observatory, not previously reported. In addition to this paper, we provide (on request to the first author) a machine readable file of the observations. Observations of 59 different asteroids are reported. About 15 new or significantly revised periods are reported. All lightcurve observations are in the V band; B- V color indices are included for a few objects previously lacking this information. Estimates of the mean and maximum reduced magnitudes are given for each object. Sufficient phase angle coverage was obtained for 28 objects to fit those data with the H- G magnitude relation ( Bowell, et al. 1989. In Asteroids II, (R. P. Binzel, T. Gehrels, and M. S. Mathhews, Eds.), pp. 524-556. Univ. of Arizona Press, Tucson ). Fits are generally good for objects of moderate albedo (moderate slope of the phase relation), but we continue to see poor quality fits among the highest and lowest albedo objects (shallowest and steepest sloping phase curves, respectively).
- Publication:
-
Icarus
- Pub Date:
- January 1992
- DOI:
- 10.1016/0019-1035(92)90195-D
- Bibcode:
- 1992Icar...95..115H
- Keywords:
-
- Asteroids;
- Astronomical Photometry;
- Light Curve;
- Magnitude;
- Orbital Elements;
- Phase Shift;
- Photoelectricity;
- Tables (Data)