Hubble Investigation of Asteroid 21 Lutetia in Support of the Rosetta Mission Flyby
HST Proposal 11957

Hal Weaver (publications @ ADS)
The Johns Hopkins University Applied Physics Laboratory

Cycle: 16
Category:
Proposal type: GO/DD
Status: completed

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Proposal Abstract

The Rosetta mission is gearing up for a flyby encounter with the large, main belt asteroid 21 Lutetia, with closest approach on 2010 June 10. The next opposition, on 2008 December 1, is our last opportunity to make observations in time to affect the planning of the Rosetta program. We request a total of 5 orbits of Hubble observing time {2 using ACS/SBC and 3 using WFPC2} to characterize the UV albedo of Lutetia, to search for any dust debris near the main body, and to perform a deep search for companions. Even one orbit of Hubble time would provide valuable data for planning the Rosetta-Alice ultraviolet spectrometer observations, and 2 orbits are sufficient to characterize the far-UV albedo, but a 5-orbit program provides a richer scientific investigation with potentially much broader implications, both scientifically and for Rosetta planning.

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Publications referencing this proposal

1. Ultraviolet and visible photometry of asteroid (21) Lutetia using the Hubble Space Telescope
   Weaver, H. A. et al. 2010A&A...518A...4W
   

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