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    • MPEC 2003-U46 : 2003 US12

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    M.P.E.C. 2003-U46                                Issued 2003 Oct. 22, 15:11 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 US12

Observations:
     K03U12S* C2003 10 21.22325 22 58 47.61 +06 39 50.4          18.6        704
     K03U12S  C2003 10 21.23511 22 58 40.73 +06 40 09.3          19.3        704
     K03U12S  C2003 10 21.24659 22 58 34.13 +06 40 27.7          18.8        704
     K03U12S  C2003 10 21.25824 22 58 27.41 +06 40 46.9          18.8        704
     K03U12S  C2003 10 21.26994 22 58 20.74 +06 41 05.3          18.5        704
     K03U12S  C2003 10 22.15079 22 51 34.75 +07 01 54.8          18.7 R      649
     K03U12S  C2003 10 22.15257 22 51 33.97 +07 01 56.9          18.5 R      649
     K03U12S  C2003 10 22.15435 22 51 33.14 +07 01 59.4          18.7 R      649
     K03U12S  C2003 10 22.15976 22 51 32.12 +07 02 18.2          18.9 R      448
     K03U12S  C2003 10 22.16154 22 51 31.32 +07 02 20.5          18.8 R      448
     K03U12S  C2003 10 22.16676 22 51 28.95 +07 02 27.0          18.8 R      448
     K03U12S 5C2003 10 22.16794 22 51 29.77 +07 02 25.0          18.0 R      673
     K03U12S 5C2003 10 22.16956 22 51 28.96 +07 02 27.0                      673
     K03U12S 5C2003 10 22.17101 22 51 28.37 +07 02 28.6                      673
     K03U12S 5C2003 10 22.17257 22 51 27.70 +07 02 30.1                      673
     K03U12S 5C2003 10 22.17350 22 51 27.24 +07 02 31.5                      673
     K03U12S 5C2003 10 22.17500 22 51 26.60 +07 02 33.4                      673

Observer details:
448 Desert Moon Observatory.  Observer B. L. Stevens.  0.3-m
    Schmidt-Cassegrain + CCD.
649 Powell Observatory, Louisburg.  Observer R. Fredrick.  0.75-m Newtonian
    + 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 US12
Epoch 2003 Oct. 8.0 TT = JDT 2452920.5                  MPC
M 102.30865              (2000.0)            P               Q
n   1.68311233     Peri.  200.55541     -0.73119186     +0.67272337
a   0.6999397      Node    22.95065     -0.57833604     -0.52334696
e   0.6016620      Incl.   16.86758     -0.36178155     -0.52302125
P   0.59           H   23.1           G   0.15
From 17 observations 2003 Oct. 21-22.

Ephemeris:
2003 US12                a,e,i = 0.70, 0.60, 17                  q = 0.2788
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2003 10 18    23 53.05   +03 48.6    0.033    1.027   155.4    23.8    16.9
2003 10 19    23 28.41   +05 08.8    0.042    1.032   148.7    30.1    17.6
2003 10 20    23 12.21   +05 59.8    0.050    1.037   144.0    34.4    18.1
2003 10 21    23 00.90   +06 34.6    0.059    1.042   140.3    37.6    18.6
2003 10 22    22 52.65   +06 59.8    0.068    1.047   137.4    40.1    19.0
2003 10 23    22 46.41   +07 18.8    0.077    1.051   135.0    42.0    19.3
2003 10 24    22 41.58   +07 33.8    0.087    1.056   132.9    43.6    19.6
2003 10 25    22 37.76   +07 45.9    0.096    1.060   131.1    45.0    19.9
2003 10 26    22 34.70   +07 56.0    0.105    1.064   129.4    46.2    20.1
2003 10 27    22 32.22   +08 04.6    0.115    1.068   127.9    47.2    20.3
2003 10 28    22 30.20   +08 12.1    0.124    1.072   126.5    48.2    20.5
2003 10 29    22 28.55   +08 18.8    0.133    1.076   125.2    49.0    20.7
2003 10 30    22 27.21   +08 24.8    0.143    1.079   123.9    49.8    20.9
2003 10 31    22 26.11   +08 30.3    0.152    1.083   122.8    50.5    21.1
2003 11 01    22 25.22   +08 35.4    0.161    1.086   121.6    51.1    21.2
2003 11 02    22 24.51   +08 40.2    0.171    1.089   120.5    51.7    21.4
2003 11 03    22 23.96   +08 44.7    0.180    1.092   119.5    52.3    21.5
2003 11 04    22 23.54   +08 49.1    0.190    1.095   118.4    52.8    21.6
2003 11 05    22 23.23   +08 53.3    0.199    1.098   117.4    53.3    21.8
2003 11 06    22 23.03   +08 57.4    0.208    1.100   116.5    53.8    21.9
2003 11 07    22 22.92   +09 01.5    0.218    1.102   115.5    54.2    22.0

Timothy B. Spahr             (C) Copyright 2003 MPC           M.P.E.C. 2003-U46

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