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    • MPEC 2013-U91 : 2013 UM9

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    M.P.E.C. 2013-U91                                Issued 2013 Oct. 31, 19:00 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

                                   2013 UM9

Observations:
     K13U09M* C2013 10 30.30668 03 13 26.13 +17 14 52.9          19.8 VqEU091703
     K13U09M  C2013 10 30.31126 03 13 24.83 +17 14 59.4          20.2 VqEU091703
     K13U09M  C2013 10 30.31579 03 13 23.73 +17 15 06.9          19.8 VqEU091703
     K13U09M  C2013 10 30.32035 03 13 22.54 +17 15 13.2          20.0 VqEU091703
     K13U09M 2C2013 10 30.47881003 12 46.268+17 19 25.20         19.8 RtEU091568
     K13U09M 2C2013 10 30.47976303 12 46.015+17 19 26.56         19.7 RtEU091568
     K13U09M 2C2013 10 30.48072003 12 45.761+17 19 27.91         19.9 RtEU091568
     K13U09M KC2013 10 30.83980 03 11 33.45 +17 26 59.3          20.0 VqEU091A13
     K13U09M KC2013 10 30.85723 03 11 29.45 +17 27 24.8          20.1 VqEU091A13
     K13U09M KC2013 10 30.87473 03 11 25.37 +17 27 51.4          20.2 VqEU091A13
     K13U09M KC2013 10 31.00386 03 10 53.86 +17 30 56.7          20.3 VqEU091595
     K13U09M KC2013 10 31.03029 03 10 47.47 +17 31 32.0                qEU091595
     K13U09M  C2013 10 31.18837 03 10 20.42 +17 35 19.5          20.5 VoEU091691
     K13U09M  C2013 10 31.20609 03 10 16.29 +17 35 45.8          20.4 VoEU091691
     K13U09M  C2013 10 31.23074 03 10 10.50 +17 36 21.0          20.6 VoEU091691
     K13U09M !C2013 10 31.25139 03 10 06.04 +17 36 44.6                tEU091673
     K13U09M !C2013 10 31.25796 03 10 04.45 +17 36 54.2                tEU091673
     K13U09M HC2013 10 31.44569 03 09 18.71 +17 41 03.2          19.5 RoEU091291
     K13U09M HC2013 10 31.44681 03 09 18.45 +17 41 04.6          19.5 RoEU091291
     K13U09M HC2013 10 31.44793 03 09 18.20 +17 41 05.9          19.5 RoEU091291

Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
568 Mauna Kea.  Observers M. Micheli, M. C. Kotson, D. J. Tholen.  Measurer
    D. J. Tholen.  2.24-m University of Hawaii reflector.
595 Farra d'Isonzo.  Observer E. Pettarin.  0.61-m f/4.0 reflector + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer J. Pittichova.  0.60-m
    f/16 Ritchey-Chretien + CCD.
691 Steward Observatory, Kitt Peak.  Observer J. V. Scotti.  0.9-m f/3
    reflector + CCD.
703 Catalina Sky Survey.  Observer R. E. Hill.  Measurers A. Boattini,
    E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson,
    R. A. Kowalski, S. M. Larson, F. C. Shelly.  0.68-m Schmidt + CCD.
A13 Observatoire Naef, Marly.  Observer P. Kocher.  0.5-m f/3.3 Hypergraph
    + CCD.

Orbital elements:
2013 UM9                                                 Earth MOID = 0.0188 AU
Epoch 2013 Nov. 4.0 TT = JDT 2456600.5                  MPC
M  53.66172              (2000.0)            P               Q
n   0.73978773     Peri.  283.09224     +0.78762279     +0.61531017
a   1.2107783      Node    38.94697     -0.54353255     +0.71852765
e   0.2436921      Incl.    2.94601     -0.29021150     +0.32420889
P   1.33           H   24.6           G   0.15           U   7
Residuals in seconds of arc
131030 703  0.8+  0.1+    131030 A13  0.3+  0.1-    131031 691  0.1+  0.1+
131030 703  0.8-  0.2-    131030 A13  0.5+  0.7-    131031 673  0.6+  0.3-
131030 703  0.3+  0.6+    131030 A13  0.5+  0.1-    131031 673  0.2+  0.0
131030 703  0.2+  0.1+    131031 595  0.1-  0.1-    131031 291  0.0   0.0
131030 568  0.1+  0.0     131031 595  0.3-  0.1-    131031 291  0.0   0.0
131030 568  0.0   0.0     131031 691  0.5-  0.0     131031 291  0.2+  0.0
131030 568  0.1-  0.0     131031 691  0.5-  0.4+

Ephemeris:
2013 UM9                 a,e,i = 1.21, 0.24, 3                   q = 0.9157
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2013 10 01    10 01 58.1 -32 56 01   0.03835 0.9747    45.4   132.9    23.5
...
2013 10 16    04 50 47.8 +03 07 38   0.04057 1.0225   128.2    50.0    19.6
...
2013 10 24    03 42 46.5 +13 37 30   0.06285 1.0512   153.3    25.1    19.9
...
2013 10 30    03 14 33.7 +17 07 43   0.08303 1.0737   165.7    13.2    20.1
2013 10 31    03 10 55.4 +17 31 38   0.08662 1.0776   167.4    11.6    20.2
2013 11 01    03 07 31.4 +17 53 16   0.09028 1.0814   169.1    10.0    20.2
...
2013 11 07    02 51 17.8 +19 26 42   0.1137  1.1046   176.7     3.0    20.4
...
2013 11 15    02 38 05.8 +20 32 45   0.1488  1.1359   169.7     8.9    21.3
...
2013 11 30    02 30 02.5 +21 27 39   0.2277  1.1945   153.6    21.6    22.8

A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-U91

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