Paetzold, M., Andert, T. P., Asmar, S. W., Anderson, J. D., Barriot, J. -P., Bird, M. K., Haeusler, B., Hahn, M., Tellmann, S., Sierks, H., Lamy, P. and Weiss, B. P. (2011). Asteroid 21 Lutetia: Low Mass, High Density. Science, 334 (6055). S. 491 - 493. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203

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Abstract

Asteroid 21 Lutetia was approached by the Rosetta spacecraft on 10 July 2010. The additional Doppler shift of the spacecraft radio signals imposed by 21 Lutetia's gravitational perturbation on the flyby trajectory were used to determine the mass of the asteroid. Calibrating and correcting for all Doppler contributions not associated with Lutetia, a least-squares fit to the residual frequency observations from 4 hours before to 6 hours after closest approach yields a mass of (1.700 +/- 0.017) x 10(18) kilograms. Using the volume model of Lutetia determined by the Rosetta Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) camera, the bulk density, an important parameter for clues to its composition and interior, is (3.4 +/- 0.3) x 10(3) kilograms per cubic meter.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Paetzold, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Andert, T. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Asmar, S. W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Anderson, J. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Barriot, J. -P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bird, M. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Haeusler, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hahn, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tellmann, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sierks, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lamy, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weiss, B. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-486979
DOI: 10.1126/science.1209389
Journal or Publication Title: Science
Volume: 334
Number: 6055
Page Range: S. 491 - 493
Date: 2011
Publisher: AMER ASSOC ADVANCEMENT SCIENCE
Place of Publication: WASHINGTON
ISSN: 1095-9203
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
Multidisciplinary SciencesMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/48697

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