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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The rotation period derived by Mueller and Samarasinha (Mueller, B.E.A., Samarasinha, N.H. . 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. . 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. . 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).
|Title:||Determination of a precise rotation period for the Deep Space 1 target, Comet 19P/Borrelly|
|Journal or Publication Title:||Icarus: International Journal of Solar System Studies|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 745-752|
|Keywords:||Kometen, Kern, Photometrie, 19P/Borrelly|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|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)|
|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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