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  • MPEC 2009-W59 : 2002 WX12

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    M.P.E.C. 2009-W59                                Issued 2009 Nov. 21, 13:18 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.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                       2002 WX12
    
                               Revision to MPEC 2002-X02
    
    Additional Observations:
         K02W12X  C2009 11 20.46538 08 06 21.81 +01 25 04.1          21.0 V EW059G96
         K02W12X  C2009 11 20.46837 08 06 22.71 +01 24 54.0          20.5 V EW059G96
         K02W12X  C2009 11 20.47128 08 06 23.65 +01 24 44.2          20.4 V EW059G96
         K02W12X  C2009 11 20.49088 08 06 29.76 +01 23 36.9          20.4 V EW059G96
         K02W12X  C2009 11 20.49181 08 06 30.08 +01 23 33.7          20.6 V EW059G96
         K02W12X  C2009 11 20.51080 08 06 35.98 +01 22 27.6          19.5 R EW059H01
         K02W12X  C2009 11 20.51444 08 06 37.12 +01 22 15.1          19.4 R EW059H01
         K02W12X  C2009 11 20.52063 08 06 39.08 +01 21 53.8          19.3 R EW059H01
         K02W12X  C2009 11 20.52665 08 06 40.97 +01 21 33.0          19.3 R EW059H01
         K02W12X  C2009 11 20.52804 08 06 41.47 +01 21 28.5          20.2 V EW059G96
         K02W12X  C2009 11 20.52861 08 06 41.65 +01 21 26.7          20.6 V EW059G96
         K02W12X  C2009 11 20.52918 08 06 41.83 +01 21 24.9          20.5 V EW059G96
         K02W12X  C2009 11 20.52978 08 06 42.01 +01 21 22.1          20.6 V EW059G96
         K02W12X tC2009 11 21.34482 08 11 11.43 +00 33 35.3          19.9 V EW059291
         K02W12X tC2009 11 21.34857 08 11 12.63 +00 33 21.4          20.3 V EW059291
         K02W12X tC2009 11 21.35233 08 11 13.90 +00 33 07.6          20.7 V EW059291
         K02W12X  C2009 11 21.36778 08 11 18.68 +00 32 09.4          19.9 R EW059H36
         K02W12X  C2009 11 21.37778 08 11 21.93 +00 31 34.0          20.0 R EW059H36
         K02W12X  C2009 11 21.38778 08 11 25.27 +00 30 57.8          19.7 R EW059H36
         K02W12X  C2009 11 21.41381 08 11 34.05 +00 29 25.7          19.2 R EW059H01
         K02W12X  C2009 11 21.41755 08 11 35.28 +00 29 12.2          19.3 R EW059H01
         K02W12X  C2009 11 21.42149 08 11 36.58 +00 28 58.0          19.2 R EW059H01
         K02W12X  C2009 11 21.42902 08 11 39.05 +00 28 30.8          19.1 R EW059H01
    
    Observer details:
    291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
    G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  Measurers E. C. Beshore,
        A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    091120 G96 9.16- 1.73+    091121 H01 9.42- 1.77+    MPO 57909   +3.6 day
    
    Orbital elements:
    2002 WX12                                                Earth MOID = 0.1264 AU
    Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
    M 350.84139              (2000.0)            P               Q
    n   0.42459822     Peri.  328.26893     -0.99685376     -0.00457163
    a   1.7531427      Node   211.76065     +0.02631400     -0.96080218
    e   0.6603498      Incl.    8.64620     -0.07476738     -0.27719717
    P   2.32           H   19.9           G   0.15           U   3
    Residuals in seconds of arc
    021130 704  0.0   0.1-    021201 704  0.0   0.4-    091120 G96  0.2-  0.2+
    021130 704  0.4+  0.1+    021201 704  0.5+  0.3+    091120 G96  0.2+  0.4+
    021130 704  0.0   0.7+    021201 704 (2.1+  0.8+)   091120 G96  0.4-  0.4+
    021201 734  0.2-  0.3+    021201 446 (1.7-  5.1+)   091120 G96  0.0   0.4+
    021201 734  0.1-  0.9-    021201 474  0.0   0.1+    091120 H01  0.1+  0.1+
    021201 649  0.1-  0.1-    021201 474  0.1+  0.0     091120 H01  0.0   0.1+
    021201 649  0.1-  0.0     021201 474  0.0   0.0     091120 H01  0.2+  0.1+
    021201 649  0.6-  0.1-    021202 649  0.3-  0.4-    091120 H01  0.1+  0.0
    021201 649  0.3-  0.2-    021202 649  0.2+  0.2+    091120 G96  0.0   0.2-
    021201 704  0.5+  0.1-    021202 649  0.2+  0.2-    091120 G96  0.0   0.0
    021201 704  0.2-  0.2-    021206 E14 (0.4-  2.8-)   091120 G96  0.0   0.1+
    021201 704  0.0   0.4+    021206 E14 (0.7+  3.3-)   091120 G96  0.1-  0.6-
    021201 704  0.2-  0.6+    021206 E14 (1.0+  2.3+)   091121 291  0.0   0.5+
    021201 704  0.4+  0.1+    021206 E14  0.3+  0.7-    091121 291  0.5-  0.1+
    021201 704  0.5+  0.3+    021210 926  0.2+  0.1+    091121 291  0.1-  0.2-
    021201 704  0.8-  0.1-    021210 926  0.3-  0.3-    091121 H36  0.5+  0.6-
    021201 446 (0.7-  2.7-)   021213 413  0.0   0.1-    091121 H36  0.0   0.0
    021201 704  0.7+  0.9-    021213 413  0.1-  0.0     091121 H36  0.8+  0.1-
    021201 704  0.3+  0.0     021213 413  0.3-  0.0     091121 H01  0.2+  0.1+
    021201 704  0.1+  0.4+    021214 413  0.1-  0.2+    091121 H01  0.2+  0.1+
    021201 704  0.7-  0.2+    021214 413  0.1-  0.1+    091121 H01  0.3+  0.1+
    021201 704  0.4+  0.5-    091120 G96  0.4+  0.0     091121 H01  0.2+  0.1+
    
    Ephemeris:
    2002 WX12                a,e,i = 1.75, 0.66, 9                   q = 0.5955
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2009 11 15    07 40.28   +05 56.3    0.456    1.256   115.7    45.2    20.4
    2009 11 20    08 03.89   +01 51.6    0.394    1.201   113.6    48.9    20.1
    2009 11 25    08 33.52   -03 27.6    0.339    1.146   109.4    54.3    19.8
    2009 11 30    09 11.83   -10 16.1    0.296    1.089   102.6    62.1    19.7
    2009 12 05    10 01.86   -18 22.9    0.266    1.033    92.7    72.4    19.6
    2009 12 10    11 05.10   -26 35.7    0.255    0.976    80.5    84.6    19.8
    2009 12 15    12 17.44   -32 52.3    0.265    0.919    68.0    96.5    20.3
    
    Timothy B. Spahr             (C) Copyright 2009 MPC           M.P.E.C. 2009-W59
    

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