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  • MPEC 2013-M40 : 2009 WM1

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    M.P.E.C. 2013-M40                                Issued 2013 June 26, 04:27 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
    
                                       2009 WM1
    
                               Revision to MPEC 2009-W30
    
    Additional Observations:
         K09W01M 2C2013 05 07.58747922 25 52.896+12 10 07.66         21.1 RtEM040568
         K09W01M 2C2013 05 07.59120522 25 53.598+12 10 15.53         21.3 RtEM040568
         K09W01M 2C2013 06 07.59915700 13 21.074+29 30 13.53         22.3 RtEM040568
         K09W01M 2C2013 06 07.60639400 13 22.749+29 30 26.69         22.1 RtEM040568
    
    Observer details:
    568 Mauna Kea.  Observers M. Micheli, D. J. Tholen.  Measurer D. J. Tholen.
        2.24-m University of Hawaii reflector.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    130507 568  1.2+  0.5+    130607 568  1.5+  0.3+    MPO176874   -0.00088 day
    
    Orbital elements:
    2009 WM1                                            PHA, Earth MOID = 0.0003 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M 254.24509              (2000.0)            P               Q
    n   0.76838135     Peri.  162.60179     +0.70678308     -0.59824785
    a   1.1805512      Node   240.29299     +0.58630192     +0.79401717
    e   0.1689722      Incl.   25.76618     +0.39586327     -0.10787141
    P   1.28           H   20.4           G   0.15           U   1
    Residuals in seconds of arc
    091117 703  0.0   0.3+    091121 H21  0.2+  0.4-    091127 G96  0.5-  0.1+
    091117 703  0.3-  0.2-    091121 H21  0.6+  0.0     091127 G96  0.2-  0.3+
    091117 703  0.6-  0.5-    091121 291  0.3-  0.1+    091127 G96  0.2+  0.1+
    091117 703  1.1-  0.9+    091121 291  0.8-  0.6-    091127 G96  0.6-  0.3+
    091117 703  0.6-  0.3+    091121 291  1.1-  0.5-    091127 G96  0.3-  0.4+
    091117 703  0.6-  0.2+    091122 H21  0.2+  0.7+    091127 D90  0.0   0.2+
    091117 703  0.2-  0.1+    091122 H21  0.2-  0.2+    091129 H21  0.2+  0.2-
    091117 H01  0.2+  0.6+    091122 H21  0.2-  0.2+    091129 H21  0.6+  0.7+
    091117 H01  0.0   0.4+    091122 703  0.0   1.2+    091129 H21  0.1-  0.6+
    091117 H01  0.3+  0.7+    091122 703  0.5+  0.6-    091129 D90  0.2-  0.1-
    091117 H01  0.1+  0.6+    091122 291  0.4-  0.3+    091129 D90  0.1+  0.1+
    091117 703  1.1-  0.2-    091122 703  0.6+  0.1+    091129 D90  0.2+  0.0
    091117 703  0.4-  0.6+    091122 291  0.5-  0.2-    091129 D90  0.0   0.0
    091118 673  1.6-  0.5-    091122 703  0.9+  0.2-    091206 568  0.2+  0.2-
    091118 673  0.0   1.2+    091122 291  1.1-  0.3-    091206 568  0.2+  0.1-
    091118 291  0.7-  0.5+    091122 H01  0.1+  0.5+    091206 568  0.2+  0.1-
    091118 673  1.1-  0.1+    091122 H01  0.1+  0.7+    091206 568  0.3+  0.1-
    091118 673  0.1+  0.7-    091122 H01  0.1+  0.5+    091222 474  0.9-  0.1-
    091118 H01  0.2-  0.9+    091123 291  0.6-  0.2+    091222 474  0.1+  1.1-
    091118 H01  0.1-  0.9+    091123 291  0.6+  0.9+    091222 474  0.2-  0.4+
    091118 H01  0.1-  0.8+    091123 291  0.0   0.3-    100124 D90  0.0   0.5+
    091118 H01  0.2-  0.6+    091124 291  0.6-  0.1+    100124 D90  0.1-  0.0
    091118 926  0.1+  0.7+    091124 291  1.2-  0.2+    100402 568  0.0   0.2+
    091118 926  0.3+  0.7+    091124 291  0.9-  0.6+    100402 568  0.1-  0.2+
    091118 926  0.3+  0.7+    091125 291  0.5-  0.3-    100513 291  0.7+  0.2+
    091119 291  0.5+  0.1+    091125 291  0.7-  0.1-    100513 291  1.1+  0.2-
    091119 291  0.3-  0.1-    091125 291  0.5-  0.9+    100513 291  0.5+  0.2-
    091120 291  0.4-  0.8-    091126 G96  0.6-  0.3+    130507 568  0.0   0.0
    091120 291  0.2+  1.0-    091126 G96  0.2-  0.2+    130507 568  0.1+  0.1+
    091120 291  0.9-  0.1-    091126 G96  0.4-  0.0     130607 568  0.0   0.2+
    091121 H21  0.6+  0.8+    091126 G96  0.7-  0.3+    130607 568  0.1-  0.2+
    
    Ephemeris:
    2009 WM1                 a,e,i = 1.18, 0.17, 26                  q = 0.9811
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 05 27    23 30 08.2 +23 19 13   1.1381  1.1647    65.3    52.2    22.9
    ...
    2013 06 11    00 26 52.7 +31 10 32   1.1041  1.1241    63.9    54.2    22.8
    ...
    2013 06 19    01 00 26.9 +34 45 49   1.0922  1.1027    63.0    55.1    22.8
    ...
    2013 06 25    01 27 16.9 +37 04 15   1.0856  1.0871    62.2    55.8    22.8
    2013 06 26    01 31 53.6 +37 25 09   1.0847  1.0845    62.0    55.9    22.8
    2013 06 27    01 36 32.5 +37 45 22   1.0838  1.0820    61.9    56.0    22.8
    ...
    2013 07 03    02 05 13.1 +39 32 00   1.0793  1.0671    61.1    56.5    22.8
    ...
    2013 07 11    02 45 14.4 +41 11 17   1.0750  1.0483    60.1    57.2    22.7
    ...
    2013 07 26    04 03 09.4 +41 50 14   1.0702  1.0177    58.3    58.1    22.7
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-M40
    

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