M.P.E.C. 2012-C55 Issued 2012 Feb. 15, 12:57 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 2012 CD29 Observations: K12C29D* C2012 02 13.94524 11 59 40.54 +10 45 23.1 18.7 VrEC055J75 K12C29D C2012 02 13.95375 11 59 40.48 +10 45 56.3 18.6 VrEC055J75 K12C29D C2012 02 13.96228 11 59 40.44 +10 46 27.2 18.5 VrEC055J75 K12C29D C2012 02 14.10109311 59 39.10 +10 55 11.3 18.6 VrEC055J75 K12C29D C2012 02 14.10952911 59 39.02 +10 55 43.1 18.7 VrEC055J75 K12C29D |C2012 02 14.37459 11 59 37.58 +11 13 07.1 19.2 VoEC055807 K12C29D |C2012 02 14.37872 11 59 37.53 +11 13 22.7 19.1 VoEC055807 K12C29D |C2012 02 14.38285 11 59 37.49 +11 13 38.8 19.1 VoEC055807 K12C29D |C2012 02 14.38491 11 59 37.46 +11 13 46.5 19.1 VoEC055807 K12C29D |C2012 02 14.38903 11 59 37.43 +11 14 02.3 18.9 VoEC055807 K12C29D |C2012 02 14.39109 11 59 37.39 +11 14 10.3 19.1 VoEC055807 K12C29D |C2012 02 14.39313 11 59 37.36 +11 14 18.2 19.1 VoEC055807 K12C29D |C2012 02 14.39588 11 59 37.33 +11 14 28.9 18.9 VoEC055807 K12C29D KC2012 02 14.41213511 59 37.82 +11 15 01.3 18.2 RuEC055H36 K12C29D KC2012 02 14.41463111 59 37.80 +11 15 11.0 18.2 RuEC055H36 K12C29D KC2012 02 14.42236011 59 37.71 +11 15 41.0 18.3 RuEC055H36 K12C29D KC2012 02 14.43296 11 59 37.79 +11 16 24.7 19.0 RuEC055H15 K12C29D $C2012 02 14.43956 11 59 39.17 +11 16 55.4 18.3 RoEC055F65 K12C29D $C2012 02 14.44088 11 59 39.15 +11 17 00.6 18.4 RoEC055F65 K12C29D KC2012 02 14.44148 11 59 37.68 +11 16 58.0 18.9 RuEC055H15 K12C29D $C2012 02 14.44294 11 59 39.09 +11 17 08.5 18.1 RoEC055F65 K12C29D KC2012 02 14.45001 11 59 37.57 +11 17 30.9 19.0 RuEC055H15 K12C29D KC2012 02 14.45858 11 59 37.47 +11 18 03.9 19.3 RuEC055H15 K12C29D KC2012 02 14.96535 11 59 36.79 +11 51 28.9 18.8 RcEC055A24 K12C29D KC2012 02 14.96794 11 59 36.73 +11 51 39.7 18.9 RcEC055A24 K12C29D KC2012 02 14.97053 11 59 36.74 +11 51 50.4 18.9 RcEC055A24 K12C29D C2012 02 15.47888 11 59 31.71 +12 26 59.3 oEC055291 K12C29D C2012 02 15.48003 11 59 31.72 +12 27 03.7 oEC055291 K12C29D C2012 02 15.48211 11 59 31.67 +12 27 11.9 oEC055291 Observer details: 291 LPL/Spacewatch II. Observer J. V. Scotti. 1.8-m f/2.7 reflector + CCD. 807 Cerro Tololo. Observers R. Holmes, T. Linder, V. Hoette. Measurers R. Holmes, T. Linder. 0.41-m f/11 Ritchey-Chretien + CCD. A24 New Millennium Observatory, Mozzate. Observer E. Cozzi. 0.36-m f/11 Schmidt-Cassegrain + CCD. F65 Haleakala-Faulkes Telescope North. Observers K. Rochowicz, G. Sostero, E. Guido, N. Howes. 2.0-m f/10.0 Ritchey-Chretien + CCD. H15 ISON-NM Observatory, Mayhill. Observer L. Elenin. 0.45-m f/2.8 astrograph + CCD. H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD. J75 OAM Observatory, La Sagra. Observers S. Sanchez, J. Nomen, M. Hurtado, J. A. Jaume, W. K. Y. Yeung, P. Rios, F. Serra. 0.45-m f/2.8 reflector + CCD. Orbital elements: 2012 CD29 Earth MOID = 0.1298 AU Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC M 310.86614 (2000.0) P Q n 0.94865974 Peri. 152.32407 +0.47127356 +0.86101007 a 1.0257993 Node 144.81224 -0.85806271 +0.49773837 e 0.6476913 Incl. 19.37932 -0.20403338 -0.10449003 P 1.04 H 19.8 G 0.15 U 9 Residuals in seconds of arc 120213 J75 0.3- 0.5- 120214 807 0.0 0.3- 120214 F65 0.5- 0.1+ 120213 J75 0.4- 0.8+ 120214 807 0.1- 0.2- 120214 H15 0.1+ 0.2+ 120213 J75 0.1- 0.4- 120214 807 0.1- 0.1- 120214 H15 0.2+ 0.0 120214 J75 0.1- 0.2+ 120214 H36 0.0 0.1+ 120214 A24 0.9+ 0.3- 120214 J75 0.1+ 0.0 120214 H36 0.1+ 0.1+ 120214 A24 0.5+ 0.0 120214 807 0.2- 0.1+ 120214 H36 0.2+ 0.2+ 120214 A24 1.1+ 0.2+ 120214 807 0.1- 0.2- 120214 H15 0.1+ 0.1+ 120215 291 0.4- 0.5+ 120214 807 0.0 0.0 120214 F65 0.0 0.1+ 120215 291 0.1+ 0.0 120214 807 0.1- 0.3- 120214 F65 0.0 0.2+ 120215 291 0.1- 0.5- 120214 807 0.2+ 0.4- 120214 H15 0.1+ 0.4+ Ephemeris: 2012 CD29 a,e,i = 1.03, 0.65, 19 q = 0.3614 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2012 01 16 11 44 14.6 -01 27 50 0.7220 1.4688 118.1 36.2 21.4 ... 2012 01 31 11 55 20.6 +01 49 17 0.5023 1.3734 132.1 32.1 20.4 ... 2012 02 08 11 58 47.9 +05 48 51 0.3932 1.3145 140.7 28.3 19.6 ... 2012 02 14 11 59 39.2 +10 49 00 0.3171 1.2665 147.6 24.7 19.0 2012 02 15 11 59 35.7 +11 54 03 0.3050 1.2581 148.6 24.1 18.8 2012 02 16 11 59 27.8 +13 04 32 0.2931 1.2496 149.7 23.5 18.7 ... 2012 02 22 11 56 41.0 +22 34 50 0.2272 1.1968 153.6 21.6 18.0 ... 2012 03 01 11 41 28.7 +45 28 50 0.1621 1.1205 140.4 34.3 17.5 ... 2012 03 16 01 29 00.2 +69 03 25 0.1771 0.9581 73.0 96.8 19.4 A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-C55