MPEC 2005-X56 : 2004 YG1
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M.P.E.C. 2005-X56 Issued 2005 Dec. 10, 21:48 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. Supported in part by the Brinson Foundation Supported in part by the TABASGO Foundation Prepared using the Tamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714 2004 YG1 Revision to MPEC 2004-Y28 Additional Observations: K04Y01G C2005 12 10.34116 08 19 35.72 +50 53 08.6 18.9 V EX056703 K04Y01G C2005 12 10.34965 08 19 33.70 +50 52 39.1 19.0 V EX056703 K04Y01G C2005 12 10.35823 08 19 31.65 +50 52 06.8 18.8 V EX056703 K04Y01G C2005 12 10.36673 08 19 29.56 +50 51 34.9 18.9 V EX056703 K04Y01G C2005 12 10.40740 08 19 19.66 +50 49 01.7 18.8 V EX056703 K04Y01G C2005 12 10.41539 08 19 17.65 +50 48 31.6 18.8 V EX056703 K04Y01G C2005 12 10.42338 08 19 15.67 +50 48 01.1 18.7 V EX056703 K04Y01G C2005 12 10.49493 08 18 57.96 +50 43 20.2 18.8 V EX056703 K04Y01G C2005 12 10.50446 08 18 55.62 +50 42 42.4 18.6 V EX056703 K04Y01G C2005 12 10.51390 08 18 53.24 +50 42 04.3 18.7 V EX056703 K04Y01G C2005 12 10.52331 08 18 50.94 +50 41 26.0 18.7 V EX056703 K04Y01G C2005 12 10.87428 08 17 42.72 +50 17 21.5 EX056J95 K04Y01G C2005 12 10.88129 08 17 41.24 +50 16 54.7 EX056J95 K04Y01G C2005 12 10.88827 08 17 39.69 +50 16 27.6 18.4 R EX056J95 Observer details: 703 Catalina Sky Survey. Observer R. A. Kowalski. Measurers E. C. Beshore, E. J. Christensen, G. J. Garradd, A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught. 0.68-m Schmidt + CCD. J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain + CCD. First and last observations above in comparison with prediction: Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T 051210 703 7.24+ 6.06- 051210 J95 7.53+ 6.12- MPO 77796 -0.82 day Orbital elements: 2004 YG1 Epoch 2006 Mar. 6.0 TT = JDT 2453800.5 MPC M 334.51183 (2000.0) P Q n 0.97217148 Peri. 294.15968 -0.84448036 +0.41462856 a 1.0091928 Node 271.87280 -0.27793428 -0.88035004 e 0.1585557 Incl. 19.82835 -0.45782688 -0.23036266 P 1.01 H 21.5 G 0.15 U 6 Residuals in seconds of arc 041218 704 1.5+ 0.7+ 041219 704 0.5+ 0.0 041220 704 0.1- 0.7+ 041218 704 0.0 0.8+ 041219 704 0.6+ 0.6+ 041220 699 0.0 0.2+ 041218 704 0.5+ 0.9+ 041220 J95 0.0 0.5+ 051210 703 0.8- 1.3- 041218 704 1.2+ 0.2- 041220 J95 0.4- 0.2- 051210 703 0.5- 0.5+ 041218 704 0.2- 0.0 041220 J95 0.1+ 0.3- 051210 703 0.3- 0.0 041219 854 0.1- 0.1+ 041220 699 0.6- 1.0+ 051210 703 0.5- 0.3- 041219 854 0.6- 1.0- 041220 704 0.6+ 0.3- 051210 703 0.5+ 0.2- 041219 704 0.1- 0.0 041220 704 0.1+ 0.1+ 051210 703 0.2+ 0.2+ 041219 H06 (2.6- 0.4-) 041220 699 0.0 0.6+ 051210 703 0.2+ 0.3+ 041219 H06 1.1- 0.6+ 041220 704 0.8+ 0.1+ 051210 703 0.6+ 0.1- 041219 H06 0.3- 0.8+ 041220 673 0.2- 0.1- 051210 703 0.7+ 0.3+ 041219 704 0.8+ 0.1+ 041220 673 0.1+ 0.2- 051210 703 0.1+ 0.2+ 041219 734 0.4- 0.1+ 041220 699 0.1- 0.2- 051210 703 0.2+ 0.1- 041219 734 0.8- 1.2- 041220 673 0.4+ 0.4- 051210 J95 0.4- 0.0 041219 734 0.4+ 0.8- 041220 704 1.2- 0.4- 051210 J95 0.1+ 0.2+ 041219 704 0.5+ 0.4- 041220 673 0.8+ 0.0 051210 J95 0.0 0.0 Ephemeris: 2004 YG1 a,e,i = 1.01, 0.16, 20 q = 0.8492 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2005 12 06 08 32.07 +54 37.7 0.160 1.091 127.9 45.4 19.4 2005 12 11 08 17.18 +50 09.4 0.129 1.080 135.0 40.1 18.8 2005 12 16 07 54.89 +42 32.7 0.101 1.068 145.1 31.8 18.0 2005 12 21 07 24.50 +28 54.8 0.0770 1.056 159.5 19.0 17.0 2005 12 26 06 46.60 +06 02.5 0.0632 1.044 161.4 17.5 16.5 2005 12 31 06 04.01 -21 02.0 0.0653 1.031 135.0 42.5 17.3 2006 01 05 05 21.27 -40 35.8 0.0814 1.017 112.5 63.3 18.3 2006 01 10 04 42.26 -51 37.0 0.104 1.004 98.2 75.8 19.3 2006 01 15 04 08.44 -57 46.6 0.130 0.990 89.0 83.4 20.0 2006 01 20 03 39.32 -61 27.4 0.156 0.976 82.6 88.3 20.5 2006 01 25 03 13.69 -63 48.6 0.182 0.963 77.8 91.6 21.0 2006 01 30 02 50.24 -65 23.3 0.207 0.949 74.0 93.9 21.3 2006 02 04 02 27.79 -66 28.0 0.231 0.936 70.9 95.6 21.6 2006 02 09 02 05.36 -67 09.3 0.254 0.923 68.2 96.9 21.8 2006 02 14 01 42.38 -67 28.3 0.275 0.911 66.0 98.0 22.0 Kyle E. Smalley (C) Copyright 2005 MPC M.P.E.C. 2005-X56


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