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    • MPEC 2003-U45 : 2003 UR12

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    M.P.E.C. 2003-U45                                Issued 2003 Oct. 22, 15:06 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 Steven and Michele Kirsch Foundation
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2003 UR12

Observations:
     K03U12R* C2003 10 21.16380 20 41 52.39 +07 52 34.4          18.8        704
     K03U12R  C2003 10 21.17539 20 41 56.94 +07 51 01.3          18.8        704
     K03U12R  C2003 10 21.18692 20 42 01.40 +07 49 28.9          18.7        704
     K03U12R  C2003 10 21.19878 20 42 06.01 +07 47 54.8          19.3        704
     K03U12R 5C2003 10 22.14907 20 48 15.01 +05 42 06.2          18.2 R      673
     K03U12R 5C2003 10 22.15046 20 48 15.51 +05 41 55.8                      673
     K03U12R 5C2003 10 22.15174 20 48 15.99 +05 41 45.8                      673
     K03U12R 5C2003 10 22.15301 20 48 16.49 +05 41 34.8                      673
     K03U12R 5C2003 10 22.15428 20 48 16.96 +05 41 24.7                      673
     K03U12R 5C2003 10 22.15556 20 48 17.46 +05 41 14.6                      673
     K03U12R  C2003 10 22.22467 20 48 43.25 +05 32 14.3          18.5 R      448
     K03U12R  C2003 10 22.22833 20 48 44.63 +05 31 45.6          18.4 R      448
     K03U12R  C2003 10 22.23430 20 48 46.89 +05 30 58.9          18.7 R      448

Observer details:
448 Desert Moon Observatory.  Observer B. L. Stevens.  0.3-m
    Schmidt-Cassegrain + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer J. Young.  0.6-m
    reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, D. Torres, R. Kracke, M. McCleary,
    H. Stange.  Measurers J. Stuart, R. Sayer, J. Evans, J. Kommers.  1.0-m
    f/2.15 reflector + CCD.

Orbital elements:
2003 UR12
Epoch 2003 Oct. 8.0 TT = JDT 2452920.5                  MPC
M   8.32517              (2000.0)            P               Q
n   0.27651747     Peri.  124.84642     +0.65962436     +0.71991694
a   2.3333918      Node   194.59721     -0.52341253     +0.64615734
e   0.5453742      Incl.   58.94730     +0.53938393     -0.25337777
P   3.56           H   18.3           G   0.15
From 13 observations 2003 Oct. 21-22.

Ephemeris:
2003 UR12                a,e,i = 2.33, 0.55, 59                  q = 1.0608
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2003 10 18    20 20.25   +15 09.9    0.407    1.167   104.6    55.7    18.7
2003 10 28    21 22.66   -05 44.4    0.476    1.220   106.9    51.2    19.0
2003 11 07    22 09.86   -18 52.2    0.612    1.280   103.5    48.8    19.6
2003 11 17    22 46.49   -25 58.0    0.778    1.346    98.5    46.6    20.2
2003 11 27    23 16.38   -29 38.6    0.958    1.414    93.3    44.2    20.7
2003 12 07    23 42.08   -31 24.3    1.141    1.485    88.3    41.5    21.1
2003 12 17    00 05.10   -32 02.1    1.323    1.558    83.5    38.9    21.4
2003 12 27    00 26.44   -31 57.5    1.502    1.631    79.0    36.3    21.7
2004 01 06    00 46.71   -31 25.5    1.674    1.704    74.8    33.8    22.0

Timothy B. Spahr             (C) Copyright 2003 MPC           M.P.E.C. 2003-U45

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