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Determination of a precise rotation period for the Deep Space 1 target, Comet 19P/Borrelly

Mueller, Béatrice E. A. and Samarasinha, Nalin H. and Rauer, Heike and Helbert, Jörn (2010) Determination of a precise rotation period for the Deep Space 1 target, Comet 19P/Borrelly. Icarus: International Journal of Solar System Studies, 209 (2), pp. 745-752. ELSEVIER. DOI: 10.1016/j.icarus.2010.05.004.

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Abstract

The rotation period derived by Mueller and Samarasinha (Mueller, B.E.A., Samarasinha, N.H. [2002]. Earth Moon Planets 90, 463–471) of the Deep Space 1 (DS1) mission target, Comet 19P/Borrelly, using ground-based data from July 28 to August 1, 2000, is improved by two orders of magnitude. This precision is reached in a multistep process. Combining all available ground-based data in 2000 decreases the error by an order of magnitude. Next, assuming that the rotation period did not change between 2000 and 2001, constraints from the HST 2001 data (Weaver, H.A., Stern, S.A., Parker, J.Wm. [2003]. Astron. J. 126, 444–451) yield three possible rotation periods: P = 1.088 ± 0.003 days, P = 1.108 ± 0.002 days, and P = 1.135 ± 0.003 days, which are consistent with our initial derivation of P = 1.08 ± 0.04 days (Mueller, B.E.A., Samarasinha, N.H. [2002]. Earth Moon Planets 90, 463–471). These three periods are further refined and the error bars further improved by another order of magnitude by linking the combined ground-based data from 2000 to the nuclear orientation of Borrelly at the DS1 encounter in 2001 (see ). Due to aliasing, there are seven possible rotation periods around P = 1.088 days, five possible periods around P = 1.108 days, and six possible periods around P = 1.135 days, with precisions of the order of 0.0002 days (≈17 s).

Document Type:Article
Title: Determination of a precise rotation period for the Deep Space 1 target, Comet 19P/Borrelly
Authors:
AuthorsInstitution or Email of Authors
Mueller, Béatrice E. A.Planetary Science Institute, 1700 E. Ft. Lowell Rd., Suite 106, Tucson, AZ 85719, United States
Samarasinha, Nalin H.Planetary Science Institute, 1700 E. Ft. Lowell Rd., Suite 106, Tucson, AZ 85719, United States
Rauer, Heikeheike.rauer@dlr.de
Helbert, Jörnjoern.helbert@dlr.de
Date:October 2010
Journal or Publication Title:Icarus: International Journal of Solar System Studies
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:209
DOI:10.1016/j.icarus.2010.05.004
Page Range:pp. 745-752
Publisher:ELSEVIER
Status:Published
Keywords:Kometen, Kern, Photometrie, 19P/Borrelly
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Asteroiden und Kometen (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Terahertz and Infrared Sensors
Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Ulrike Stiebeler
Deposited On:12 Jan 2011 11:23
Last Modified:26 Mar 2013 13:20

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