M.P.E.C. 2011-W82 Issued 2011 Nov. 30, 02:15 UT The Minor Planet Electronic Circulars contain information on unusual minor planets and routine data on comets. They are published on behalf of Commission 20 of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Prepared using the Tamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL http://www.minorplanetcenter.net/ ISSN 1523-6714 COMET P/2010 UH55 (SPACEWATCH) Additional observations: PK10U55H KC2011 11 28.02040 10 48 55.21 -01 49 33.6 18.9 TvEW082C32 PK10U55H KC2011 11 28.02681 10 48 55.50 -01 49 36.5 18.7 TvEW082C32 PK10U55H KC2011 11 28.03329 10 48 55.82 -01 49 39.5 19.0 TvEW082C32 PK10U55H $C2011 11 28.62753 10 49 22.68 -01 53 51.7 18.2 TrEW082F65 PK10U55H $C2011 11 28.62909 10 49 22.80 -01 53 52.6 18.2 TrEW082F65 PK10U55H $C2011 11 28.63064 10 49 22.90 -01 53 54.5 18.3 TrEW082F65 Observer details: C32 Ka-Dar Observatory, TAU Station, Nizhny Arkhyz. Observer V. Gerke. Measurers A. Novichonok, D. Chestnov. 0.40-m f/8 Ritchey-Chretien + CCD. F65 Haleakala-Faulkes Telescope North. Observers G. Sostero, K. Rochowicz, N. Howes, E. Guido. 2.0-m f/10.0 Ritchey-Chretien + CCD. Orbital elements: P/2010 UH55 (Spacewatch) Epoch 2011 Apr. 29.0 TT = JDT 2455680.5 T 2011 May 10.36035 TT MPC q 2.7679685 (2000.0) P Q n 0.05926901 Peri. 221.61772 -0.11360539 -0.98578606 a 6.5150478 Node 235.26466 +0.94670025 -0.06961276 e 0.5751423 Incl. 8.66245 +0.30141740 -0.15290488 P 16.63 From 114 observations 2010 Sept. 12-2011 Nov. 28, mean residual 0".49. Residuals in seconds of arc 100912 J04 1.5+ 0.4+ 101127 G96 0.2+ 0.3- 110127 704 0.1+ 0.0 100912 J04 1.2+ 0.4+ 101127 G96 0.2+ 0.3- 110127 704 0.1- 1.1+ 100912 J04 1.1+ 0.0 101127 703 0.5+ 0.5+ 110127 704 1.4+ 1.4+ 101029 691 0.7- 0.1- 101127 703 0.6- 0.3- 110206 704 0.0 0.0 101029 691 0.1- 0.3- 101127 703 0.3- 0.2- 110206 704 0.0 0.9- 101029 691 0.2+ 0.0 101127 703 0.8- 0.3- 110206 704 0.0 0.7- 101102 691 0.6- 0.1+ 101203 704 0.3+ 0.7+ 110225 H10 0.3- 0.7- 101102 691 0.2- 0.1- 101203 704 0.1+ 0.8+ 110225 H10 0.1+ 0.6+ 101102 691 0.5- 0.0 101203 704 0.1- 0.1+ 110225 H10 0.5+ 0.4+ 101106 704 1.0+ 0.5+ 101203 704 0.0 0.1+ 110302 703 0.0 0.8+ 101106 704 0.4+ 0.2+ 101206 704 0.3+ 0.1+ 110302 703 0.0 0.7+ 101106 704 0.8+ 0.6+ 101206 704 0.9+ 0.5- 110302 703 0.1- 1.5+ 101106 704 0.3- 0.3- 101206 704 0.2+ 0.5- 110302 703 0.1- 0.4+ 101106 704 0.1+ 0.5- 101206 704 0.4+ 0.7- 110302 510 0.3+ 0.7+ 101110 G96 0.2- 0.0 101206 704 0.1+ 0.2- 110302 510 0.3+ 0.6+ 101110 G96 0.2- 0.1- 101206 704 1.0- 0.1+ 110303 704 0.2+ 0.9+ 101110 G96 0.3+ 0.2- 101206 704 0.0 0.4- 110303 704 0.1- 0.1- 101110 G96 0.2- 0.2- 101206 704 0.8+ 0.2+ 110303 704 0.1+ 0.4- 101113 704 0.0 0.4+ 101212 G96 0.2- 0.1- 111029 H06 0.2+ 0.2- 101113 704 0.3+ 1.2+ 101212 G96 0.1+ 0.5- 111029 H06 0.1+ 0.2+ 101113 704 0.3+ 0.0 101212 G96 0.2- 0.4- 111029 H06 0.3+ 0.5+ 101113 704 0.2+ 0.4- 101212 G96 0.5- 0.3- 111030 H06 0.1+ 0.5- 101113 704 0.3+ 0.5+ 101213 704 0.5+ 0.4+ 111030 H06 0.1- 0.8- 101117 H06 0.6+ 1.0+ 101213 704 0.4- 0.2+ 111030 H06 0.5- 0.0 101117 H06 0.4+ 0.7+ 101213 704 0.8+ 0.3- 111101 I89 0.4+ 0.1+ 101117 H06 0.7+ 0.9- 101213 704 0.2- 0.2- 111101 I89 0.3+ 0.0 101118 H06 0.6+ 0.1+ 101213 704 0.7- 0.5+ 111103 H06 0.5- 1.3+ 101118 H06 0.6- 0.1- 101224 H15 0.0 0.0 111103 H06 0.5- 0.2- 101118 H06 0.6- 0.4+ 101224 H15 0.2- 0.3+ 111107 H06 0.1+ 0.4- 101125 A50 0.6+ 0.4- 101224 H15 0.0 0.1- 111107 H06 0.3+ 0.2- 101125 A50 0.2+ 0.1+ 101224 H15 0.0 0.1+ 111115 204 0.7- 0.3- 101125 A50 0.0 0.5+ 110105 H10 0.2+ 0.2- 111115 204 1.1- 0.1- 101127 H15 0.8- 0.8- 110105 H10 0.5+ 0.4- 111128 C32 0.1- 0.1- 101127 H15 0.5- 0.6- 110105 H10 0.1+ 0.5- 111128 C32 0.1- 0.3- 101127 H15 0.3- 0.4- 110112 J04 0.0 0.2- 111128 C32 0.4+ 0.5- 101127 H15 0.2- 0.2- 110112 J04 0.2- 0.1- 111128 F65 0.5- 0.5+ 101127 G96 0.4+ 0.3- 110112 J04 0.1- 0.0 111128 F65 0.3+ 0.3+ 101127 G96 0.0 0.3- 110127 704 1.0- 0.0 111128 F65 0.8+ 1.0- Ephemeris: P/2010 UH55 (Spacewatch) Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2 2011 10 31 10 22 24.9 +01 52 27 3.4375 3.0749 60.6 16.3 18.6 19.0 ... 2011 11 15 10 37 49.8 -00 11 06 3.3003 3.1251 71.2 17.4 18.5 19.0 ... 2011 11 23 10 44 55.2 -01 12 47 3.2218 3.1530 77.2 17.8 18.5 19.0 ... 2011 11 29 10 49 39.3 -01 56 29 3.1613 3.1745 81.8 17.9 18.5 18.9 2011 11 30 10 50 23.6 -02 03 32 3.1511 3.1781 82.6 17.9 18.5 18.9 2011 12 01 10 51 07.0 -02 10 30 3.1409 3.1817 83.4 17.9 18.5 18.9 ... 2011 12 07 10 55 07.8 -02 50 43 3.0794 3.2036 88.2 17.9 18.5 18.9 ... 2011 12 15 10 59 34.7 -03 39 33 2.9973 3.2335 94.9 17.7 18.5 18.9 ... 2011 12 30 11 04 53.0 -04 53 28 2.8483 3.2911 108.2 16.5 18.4 18.7 Gareth V. Williams (C) Copyright 2011 MPC M.P.E.C. 2011-W82