1. Asteroid 243 ida: groundbased photometry and a pre-Galileo physical model
- Author
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Binzel, R.P., Slivan, S.M., Magnusson, P., Wisniewski, W.Z., Drummond, J., Lumme, K., Barucci, M.A., Dotto, E., Angeli, C., Lazzaro, D., Mottola, S., Gonano-Beurer, M., Michalowski, T., De Angelis, G., Tholen, D.J., Di Martino, M., Hoffmann, M., Geyer, E.H., and Velichko, F.
- Subjects
Asteroids -- Research ,Photometry -- Usage ,Astronomy ,Earth sciences - Abstract
Spin vector and shape of the asteroid 243 Ida were obtained from groundbased photometric observations of the asteroid over seven apparitions from 1980 to 1993. The solutions for the spin vector at ecliptic coordinates are also obtained. The required angles for the study of the low orbital inclination of Ida is restricted by the spin vector ambiguity. The rotation of the asteroid is retrograde and has a sidereal period of 4.6336 hours. The axial ratios are 1.82 and 1.15, as revealed by the ellipsoid model.
- Published
- 1993