Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):
orbital data, primary (osculating elements) [JPL]:
orbital data, secondary:
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other data, primary:
other data, secondary:
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--2008 BT18--discovery and notes:
Primary discovered 31 January 2008 by the LINEAR program; linked to pre-discovery observations from 14 March 1955.Companion discovered by L. A. M. Benner, M. C. Nolan, E. S. Howell, C. Magri, J. D. Giorgini, S. J. Ostro, M. Brozovic, M. W. Busch, J. L. Margot, P. A. Taylor, M. K. Shepard, L. M. Carter, and T. M. Becker from radar observations obtained 6-7 July 2008 from Arecibo and Goldstone; reported 29 July 2008.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2008, 2009 by Wm. Robert Johnston.
Last modified 6 December 2009.
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