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  • MPEC 2009-Y62 : 2007 GW5

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    M.P.E.C. 2009-Y62                                Issued 2009 Dec. 30, 16:42 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
    
                                       2007 GW5
    
                               Revision to MPEC 2007-H03
    
    Additional Observations:
         K07G05W 2C2009 12 09.51435806 59 50.505+62 16 13.08         23.4 R EY062568
         K07G05W 2C2009 12 09.51935606 59 49.641+62 16 18.59         23.4 R EY062568
         K07G05W 2C2009 12 19.53781106 26 49.610+64 43 05.73         23.5 R EY062568
         K07G05W 2C2009 12 19.54369006 26 48.236+64 43 09.11         23.6 R EY062568
         K07G05W 2C2009 12 19.54908306 26 47.001+64 43 12.18         23.3 R EY062568
    
    Observer details:
    568 Mauna Kea.  Observers M. Micheli, G. T. Elliott, M. Ishiguro, 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
    091209 568 10.6-  1.1+    091219 568 11.0-  0.6-    MPO126774   +0.0034 day
    
    Orbital elements:
    2007 GW5                                                 Earth MOID = 0.2142 AU
    Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
    M 152.56469              (2000.0)            P               Q
    n   0.56559059     Peri.  261.05682     +0.35772290     +0.90795011
    a   1.4481090      Node    32.72209     -0.61595137     +0.40513103
    e   0.2877540      Incl.   23.81986     -0.70188193     +0.10721681
    P   1.74           H   21.6           G   0.15           U   1
    Residuals in seconds of arc
    070414 G96  0.0   0.1-    070416 649  0.8+  0.2-    070917 474  0.5-  0.2+
    070414 G96  0.1+  0.6+    070416 649  1.1-  0.7-    070917 474  0.9+  0.5-
    070414 G96  0.1+  0.1-    070416 649  0.1+  0.7+    070917 474  1.2+  0.6+
    070414 G96  0.1+  0.3-    070416 G96  0.7-  0.1-    070917 474  0.3+  0.0
    070414 G96  0.0   0.1+    070416 G96  0.4-  0.5-    071014 448  1.6-  0.1+
    070414 G96  0.3-  0.1+    070416 G96  0.0   0.3-    071014 448  0.0   0.7-
    070414 G96  0.0   0.2-    070416 G96  0.4-  0.0     071014 448  0.7+  0.0
    070414 G96  0.3-  0.2+    070420 F85  0.0   0.2-    091209 568  0.0   0.1+
    070414 G96  0.2-  0.3+    070420 F85  0.6-  0.2+    091209 568  0.1+  0.0
    070414 G96  0.5-  0.2+    070517 474  0.1-  0.4-    091219 568  0.1+  0.0
    070414 G96  0.3-  0.1-    070517 474  0.3+  0.0     091219 568  0.1-  0.0
    070414 G96  0.2-  0.2-    070517 474  0.4+  0.1-    091219 568  0.1-  0.1-
    070416 649  0.0   1.2+    070517 474  1.5+  1.6-
    
    Ephemeris:
    2007 GW5                 a,e,i = 1.45, 0.29, 24                  q = 1.0314
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2009 12 25    06 06.01   +65 23.5    0.969    1.823   138.0    21.2    23.9
    2010 01 04    05 29.30   +65 22.5    1.004    1.836   135.0    22.2    24.0
    
    Sonia Keys                   (C) Copyright 2009 MPC           M.P.E.C. 2009-Y62
    

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