M.P.E.C. 2013-A34 Issued 2013 Jan. 7, 19:02 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 2013 AN20 Observations: K13A20N* C2013 01 06.14039 02 56 33.94 -03 10 54.0 18.2 cEA034704 K13A20N C2013 01 06.15413 02 56 31.49 -03 06 33.3 18.2 cEA034704 K13A20N C2013 01 06.16719 02 56 29.13 -03 02 26.1 18.3 cEA034704 K13A20N C2013 01 06.18057 02 56 26.80 -02 58 11.7 18.2 cEA034704 K13A20N C2013 01 06.19393 02 56 24.43 -02 53 57.7 18.3 cEA034704 K13A20N C2013 01 07.11451 02 54 18.10 +02 04 33.8 17.9 VrEA034703 K13A20N C2013 01 07.12012 02 54 17.10 +02 06 24.4 18.1 VrEA034703 K13A20N C2013 01 07.12579 02 54 16.12 +02 08 17.0 17.6 VrEA034703 K13A20N C2013 01 07.13138 02 54 15.01 +02 10 08.4 18.1 VrEA034703 K13A20N C2013 01 07.43980 02 53 31.69 +03 52 54.7 18.2 RoEA034300 K13A20N C2013 01 07.44214 02 53 31.27 +03 53 42.2 18.2 RoEA034300 K13A20N C2013 01 07.44449 02 53 30.84 +03 54 29.6 18.2 RoEA034300 K13A20N C2013 01 07.44683 02 53 30.40 +03 55 16.1 18.2 RoEA034300 K13A20N C2013 01 07.44915 02 53 29.99 +03 56 03.2 18.2 RoEA034300 K13A20N C2013 01 07.45149 02 53 29.57 +03 56 50.6 18.1 RoEA034300 K13A20N C2013 01 07.46028 02 53 27.70 +03 59 47.1 18.1 VuEA034900 K13A20N C2013 01 07.46530 02 53 26.79 +04 01 28.5 18.2 VuEA034900 K13A20N C2013 01 07.47034 02 53 25.88 +04 03 09.7 18.2 VuEA034900 K13A20N 2C2013 01 07.53265 02 53 13.39 +04 26 06.5 18.4 RoEA034E10 K13A20N 2C2013 01 07.53596 02 53 12.82 +04 27 13.1 18.2 RoEA034E10 K13A20N KC2013 01 07.67894 02 52 59.67 +05 13 04.6 18.0 RoEA034461 K13A20N KC2013 01 07.68000 02 52 59.54 +05 13 26.5 17.8 RoEA034461 K13A20N KC2013 01 07.68106 02 52 59.32 +05 13 48.4 17.3 RoEA034461 K13A20N KC2013 01 07.68214 02 52 59.14 +05 14 10.0 17.6 RoEA034461 K13A20N KC2013 01 07.74646 02 52 48.61 +05 35 59.1 uEA034595 K13A20N KC2013 01 07.75185 02 52 47.70 +05 37 48.8 uEA034595 K13A20N KC2013 01 07.75726 02 52 46.71 +05 39 39.1 18.1 VuEA034595 Observer details: 300 Bisei Spaceguard Center--BATTeRS. Observers S. Okumura, N. Hashimoto. 1.0-m f/3.0 reflector + CCD. 461 University of Szeged, Piszkesteto Stn. (Konkoly). Observer K. Sarneczky. 0.60-m Schmidt + CCD. 595 Farra d'Isonzo. Observers E. Pettarin, F. Piani. Measurer E. Pettarin. 0.40-m f/4.5 reflector + CCD. 703 Catalina Sky Survey. Observer A. D. Grauer. Measurers A. Boattini, E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson, R. A. Kowalski, S. M. Larson, R. H. McNaught. 0.68-m Schmidt + 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. 900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD. E10 Siding Spring-Faulkes Telescope South. Observers K. Rochowicz, E. Guido, N. Howes. 2.0-m f/10.0 Ritchey-Chretien + CCD. Orbital elements: 2013 AN20 PHA, Earth MOID = 0.0363 AU Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC M 305.66870 (2000.0) P Q n 0.55610605 Peri. 355.72443 -0.19854789 -0.90426533 a 1.4645278 Node 105.39141 +0.91044291 -0.31296144 e 0.3048883 Incl. 23.08272 +0.36286697 +0.29044681 P 1.77 H 21.5 G 0.15 U 7 Residuals in seconds of arc 130106 704 0.4+ 0.2- 130107 300 0.3+ 0.7- 130107 E10 0.2- 0.1+ 130106 704 0.3+ 0.1+ 130107 300 0.4+ 0.2- 130107 E10 0.2- 0.0 130106 704 0.4- 0.3- 130107 300 0.3+ 0.1- 130107 461 0.6- 0.2- 130106 704 0.0 0.1+ 130107 300 0.1+ 0.7- 130107 461 0.2+ 0.2+ 130106 704 0.4- 0.3+ 130107 300 0.3+ 0.3- 130107 461 0.4- 0.5+ 130107 703 0.4- 0.9+ 130107 300 0.4+ 0.0 130107 461 0.3- 0.2+ 130107 703 0.1- 0.0 130107 900 0.2+ 0.1+ 130107 595 0.2- 0.2- 130107 703 0.6+ 0.2- 130107 900 0.2+ 0.5+ 130107 595 0.4+ 0.1- 130107 703 0.8- 0.1+ 130107 900 0.2+ 0.2+ 130107 595 0.2- 0.2+ Ephemeris: 2013 AN20 a,e,i = 1.46, 0.30, 23 q = 1.0180 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2012 12 08 03 53 05.2 -57 07 11 0.2482 1.0526 98.9 67.6 21.0 ... 2012 12 23 03 26 16.0 -45 30 36 0.1516 1.0261 102.1 69.6 19.9 ... 2012 12 31 03 10 11.7 -28 42 10 0.1044 1.0194 107.4 67.0 19.0 ... 2013 01 06 02 56 54.2 -03 54 10 0.08079 1.0180 113.3 62.5 18.3 2013 01 07 02 54 33.7 +01 27 24 0.07880 1.0181 114.1 61.8 18.2 2013 01 08 02 52 11.1 +07 03 05 0.07752 1.0183 114.7 61.3 18.2 ... 2013 01 14 02 37 09.1 +39 41 49 0.08567 1.0210 113.6 61.9 18.4 ... 2013 01 22 02 14 48.3 +66 01 07 0.1256 1.0295 107.8 65.6 19.4 ... 2013 02 06 01 17 44.2 +84 26 34 0.2246 1.0589 102.8 65.2 20.7 A. U. Tomatic (C) Copyright 2013 MPC M.P.E.C. 2013-A34