MPEC 2012-R39 : 2012 RH10
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M.P.E.C. 2012-R39 Issued 2012 Sept. 15, 21:32 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 https://www.minorplanetcenter.net/ ISSN 1523-6714 2012 RH10 Observations: K12R10H*QC2012 09 12.60926 23 40 17.67 -04 47 13.2 19.3 VrER039E12 K12R10H QC2012 09 12.62204 23 40 13.59 -04 46 58.3 19.2 VrER039E12 K12R10H QC2012 09 12.63482 23 40 09.53 -04 46 44.4 18.9 VrER039E12 K12R10H QC2012 09 12.64762 23 40 05.47 -04 46 28.2 19.4 VrER039E12 K12R10H QC2012 09 12.73422 23 39 38.15 -04 44 45.8 19.4 VrER039E12 K12R10H KC2012 09 12.98273 23 38 24.71 -04 40 30.8 19.0 RtER039J04 K12R10H KC2012 09 12.98465 23 38 24.09 -04 40 28.5 18.9 RtER039J04 K12R10H KC2012 09 12.98658 23 38 23.47 -04 40 26.2 18.9 RtER039J04 K12R10H KC2012 09 12.98666 23 38 22.75 -04 40 38.7 uER039J95 K12R10H KC2012 09 12.99035 23 38 21.61 -04 40 34.1 uER039J95 K12R10H KC2012 09 12.99570 23 38 19.87 -04 40 28.0 19.4 RuER039J95 K12R10H KC2012 09 13.02588 23 38 10.70 -04 39 39.0 19.9 VuER039954 K12R10H KC2012 09 13.04074 23 38 05.79 -04 39 21.6 19.8 VuER039954 K12R10H KC2012 09 13.05239 23 38 02.02 -04 39 06.8 19.3 VuER039954 K12R10H KC2012 09 13.13945223 37 36.29 -04 37 27.2 19.2 VrER039H21 K12R10H KC2012 09 13.14491723 37 34.49 -04 37 20.3 19.4 VrER039H21 K12R10H KC2012 09 13.14973623 37 32.92 -04 37 14.4 19.3 VrER039H21 K12R10H C2012 09 13.30310 23 36 43.44 -04 34 02.3 19.7 RoER039926 K12R10H C2012 09 13.31395 23 36 39.83 -04 33 49.0 19.5 RoER039926 K12R10H C2012 09 13.32594 23 36 35.87 -04 33 34.4 19.5 RoER039926 K12R10H QC2012 09 13.47511 23 35 50.14 -04 29 44.5 19.2 VrER039E12 K12R10H QC2012 09 13.72048 23 34 27.44 -04 24 35.1 19.0 VrER039E12 K12R10H QC2012 09 13.72360 23 34 26.40 -04 24 30.2 19.2 VrER039E12 K12R10H C2012 09 13.78733 23 34 08.59 -04 24 00.6 18.8 RvER039B18 K12R10H C2012 09 13.79154 23 34 07.16 -04 23 55.1 19.2 RvER039B18 K12R10H C2012 09 13.79647 23 34 05.52 -04 23 48.8 19.1 RvER039B18 K12R10H KC2012 09 13.89304 23 33 33.95 -04 21 46.2 vER039I93 K12R10H KC2012 09 13.90749 23 33 29.02 -04 21 26.5 19.3 VvER039I93 K12R10H KC2012 09 13.92286 23 33 23.79 -04 21 06.6 19.0 VvER039I93 K12R10H KC2012 09 13.96776 23 33 09.16 -04 19 59.4 19.0 RtER039J04 K12R10H KC2012 09 13.97030 23 33 08.17 -04 19 56.2 tER039J04 K12R10H KC2012 09 13.97285 23 33 07.36 -04 19 51.3 tER039J04 K12R10H KC2012 09 14.01933 23 32 50.27 -04 19 02.5 tER039204 K12R10H KC2012 09 14.02906 23 32 46.93 -04 18 50.0 19.0 RtER039204 K12R10H KC2012 09 14.03861 23 32 43.64 -04 18 37.4 tER039204 K12R10H |C2012 09 14.11311 23 32 20.80 -04 16 07.3 17.8 VuER039807 K12R10H |C2012 09 14.11629 23 32 19.69 -04 16 03.1 17.9 VuER039807 K12R10H |C2012 09 14.11955 23 32 18.55 -04 15 59.2 17.4 VuER039807 K12R10H |C2012 09 14.12278 23 32 17.43 -04 15 54.6 17.7 VuER039807 K12R10H |C2012 09 14.12595 23 32 16.32 -04 15 50.4 17.7 VuER039807 K12R10H C2012 09 14.24794 23 31 35.07 -04 13 54.2 19.9 RoER039926 K12R10H C2012 09 14.25698 23 31 31.88 -04 13 42.4 19.7 RoER039926 K12R10H C2012 09 14.25860 23 31 31.14 -04 13 40.8 19.4 cER039704 K12R10H C2012 09 14.26837 23 31 27.86 -04 13 26.9 19.7 RoER039926 K12R10H C2012 09 14.27292 23 31 26.07 -04 13 21.0 19.7 cER039704 K12R10H C2012 09 14.28725 23 31 20.97 -04 13 02.8 19.5 cER039704 K12R10H C2012 09 14.30150 23 31 15.95 -04 12 43.7 19.4 cER039704 K12R10H C2012 09 14.31574 23 31 10.86 -04 12 25.0 19.3 cER039704 K12R10H QC2012 09 14.43394 23 30 32.97 -04 08 59.2 18.9 VrER039E12 K12R10H QC2012 09 14.43883 23 30 31.26 -04 08 52.8 19.1 VrER039E12 K12R10H KC2012 09 15.01067 23 27 10.17 -03 56 30.3 18.9 RtER039J04 K12R10H KC2012 09 15.01198 23 27 09.68 -03 56 28.4 18.9 RtER039J04 K12R10H KC2012 09 15.01329 23 27 09.20 -03 56 26.6 18.9 RtER039J04 K12R10H KC2012 09 15.11421 23 26 33.42 -03 53 17.0 18.8 VuER039I39 K12R10H KC2012 09 15.13594 23 26 25.22 -03 52 47.8 18.7 VuER039I39 K12R10H KC2012 09 15.15423 23 26 18.33 -03 52 20.4 19.0 VuER039I39 K12R10H KC2012 09 15.15582323 26 18.90 -03 53 11.4 18.3 VvER039H21 K12R10H KC2012 09 15.15825623 26 18.00 -03 53 07.7 19.1 VvER039H21 K12R10H KC2012 09 15.16068723 26 17.09 -03 53 04.5 18.5 VvER039H21 K12R10H KC2012 09 15.16281823 26 16.28 -03 53 01.4 19.5 VvER039H21 K12R10H C2012 09 15.58812 23 23 40.50 -03 42 44.0 19.1 VuER039900 K12R10H C2012 09 15.59455 23 23 38.08 -03 42 34.8 19.3 VuER039900 Observer details: 204 Schiaparelli Observatory. Observer L. Buzzi. 0.38-m f/6.8 reflector + CCD. 704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, G. Spitz, R. Brungard, J. Paige, P. Festler, T. McVey, A. Valdivia, C. Gall. 1.0-m f/2.15 reflector + CCD. 807 Cerro Tololo. Observers T. Linder, R. Holmes, R. Sampson. 0.41-m f/11 Ritchey-Chretien + CCD. 900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD. 926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD. 954 Teide Observatory. Observer N. D. Diaz. 0.26-m f/11.6 reflector + CCD. B18 Terskol. Observers M. Andreev, A. Sergeev, N. Parakhin, V. Kozlov, N. Karpov. Measurer M. Andreev. 0.6-m f/13.3 Cassegrain + CCD. E12 Siding Spring Survey. Observer R. H. McNaught. Measurers A. Boattini, E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught. 0.5-m Uppsala Schmidt + CCD. H21 Astronomical Research Observatory, Westfield. Observer R. Holmes. Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov. 0.61-m f/4.0 astrograph + CCD. I39 Observatorio Cruz del Sur, San Justo. Observers A. Chapman, N. D. Diaz. 0.20-m f/4 reflector + CCD. I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/5.0 reflector + CCD. J04 ESA Optical Ground Station, Tenerife. Observers D. Abreu, P. Ruiz. Measurers D. Koschny, M. Busch, A. Knoefel, E. Schwab. 1.0-m f/4.4 reflector + CCD. J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain + CCD. Orbital elements: 2012 RH10 Earth MOID = 0.0752 AU Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC M 302.93268 (2000.0) P Q n 0.80291177 Peri. 122.90536 -0.43052168 -0.90201442 a 1.1464563 Node 352.38703 +0.72643902 -0.32527578 e 0.4703467 Incl. 13.95727 +0.53566542 -0.28384089 P 1.23 H 22.0 G 0.15 U 8 Residuals in seconds of arc 120912 E12 0.2+ 0.4+ 120913 E12 0.2+ 0.5- 120914 704 0.1+ 0.6+ 120912 E12 0.3- 0.3+ 120913 E12 0.3+ 0.4+ 120914 926 0.2- 0.0 120912 E12 0.5- 0.9- 120913 B18 0.1- 0.1- 120914 704 0.1- 1.4+ 120912 E12 0.5- 0.2+ 120913 B18 0.1- 0.1+ 120914 704 0.5- 0.6+ 120912 E12 0.2- 0.3- 120913 B18 0.3+ 0.1+ 120914 704 0.1- 0.7+ 120912 J04 0.2- 0.2+ 120913 I93 0.2- 1.0- 120914 704 0.7- 0.4+ 120912 J04 0.2- 0.2+ 120913 I93 0.4- 0.2+ 120914 E12 0.0 0.0 120912 J04 0.1- 0.1+ 120913 I93 0.1- 0.4+ 120914 E12 0.1+ 0.1- 120912 J95 0.4+ 0.3- 120913 J04 0.1- 0.1+ 120915 J04 0.3+ 0.3- 120912 J95 1.1+ 0.1- 120913 J04 1.8- 0.0 120915 J04 0.2+ 0.2- 120912 J95 0.7+ 0.5- 120913 J04 0.7- 1.6+ 120915 J04 0.3+ 0.3- 120913 954 0.0 0.2+ 120914 204 0.3- 0.1+ 120915 I39 1.2+ 0.1+ 120913 954 0.9- 0.3- 120914 204 0.1- 0.2- 120915 I39 0.0 1.6- 120913 954 0.3- 0.4+ 120914 204 0.0 0.1- 120915 I39 0.5- 0.2- 120913 H21 0.5+ 0.1+ 120914 807 0.1+ 0.3+ 120915 H21 0.2- 0.1- 120913 H21 0.0 0.4+ 120914 807 0.1+ 0.3+ 120915 H21 0.1- 0.2+ 120913 H21 0.1- 0.5+ 120914 807 0.0 0.0 120915 H21 0.1- 0.0 120913 926 0.6- 0.5+ 120914 807 0.2+ 0.4+ 120915 H21 0.4- 0.0 120913 926 0.7- 0.5+ 120914 807 0.1+ 0.4+ 120915 900 0.5- 0.3- 120913 926 0.3- 0.2+ 120914 926 0.3- 0.2- 120915 900 0.4+ 0.5- 120913 E12 0.0 0.3+ 120914 926 0.3- 0.4- Ephemeris: 2012 RH10 a,e,i = 1.15, 0.47, 14 q = 0.6072 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2012 08 16 00 37 21.8 -09 01 08 0.4688 1.3927 137.0 29.7 22.4 ... 2012 08 31 00 21 52.6 -07 29 07 0.3184 1.3035 154.3 19.7 21.1 ... 2012 09 08 00 00 05.4 -06 03 28 0.2488 1.2509 166.8 10.6 20.1 ... 2012 09 14 23 32 57.5 -04 18 56 0.2033 1.2092 178.6 1.2 19.1 2012 09 15 23 27 13.8 -03 56 22 0.1964 1.2020 178.5 1.3 19.0 2012 09 16 23 21 06.0 -03 32 01 0.1898 1.1948 176.3 3.1 19.1 ... 2012 09 22 22 34 49.3 -00 21 04 0.1555 1.1506 159.4 17.9 19.2 ... 2012 09 30 21 05 42.6 +05 57 17 0.1290 1.0888 130.0 44.8 19.5 ... 2012 10 15 18 01 39.6 +15 33 29 0.1486 0.9657 73.6 97.9 21.3 A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-R39


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