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  • MPEC 2008-X80 : 2007 DU103

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    M.P.E.C. 2008-X80                                Issued 2008 Dec. 12, 14:57 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 DU103
    
                               Revision to MPEC 2007-F53
    
    Additional Observations:
         K07DA3U 2C2008 09 16.57083904 11 07.952+46 57 54.65         22.3 R EX080568
         K07DA3U 2C2008 09 16.57459404 11 07.951+46 57 56.87         22.6 R EX080568
         K07DA3U 2C2008 09 16.57928704 11 07.946+46 57 59.50         22.6 R EX080568
         K07DA3U 2C2008 09 16.58246504 11 07.950+46 58 01.29         22.5 R EX080568
         K07DA3U 2C2008 10 09.41541904 02 14.563+50 11 18.31         22.5 R EX080568
         K07DA3U 2C2008 10 09.41943204 02 14.355+50 11 20.07         22.6 R EX080568
         K07DA3U 2C2008 10 09.42703404 02 13.965+50 11 23.39         22.6 R EX080568
         K07DA3U 2C2008 10 09.43028704 02 13.798+50 11 24.79         22.6 R EX080568
    
    Observer details:
    568 Mauna Kea.  Observers D. J. Tholen, G. T. Elliott.  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
    080916 568  7.6+ 21.0+    081009 568  7.8+ 23.8+    MPO119708   +0.026 day
    
    Orbital elements:
    2007 DU103                                               Earth MOID = 0.3739 AU
    Epoch 2008 Nov. 30.0 TT = JDT 2454800.5                 MPC
    M 104.56112              (2000.0)            P               Q
    n   0.25504517     Peri.  293.71509     +0.07209844     +0.98734048
    a   2.4625854      Node   338.90157     -0.71070501     -0.04852732
    e   0.5015255      Incl.   23.10897     -0.69978583     +0.15100952
    P   3.86           H   17.5           G   0.15           U   2
    Residuals in seconds of arc
    070225 G96  0.1+  0.2+    070320 G96  0.1-  0.2-    070410 J95  0.3+  1.1-
    070225 G96  0.1-  0.3+    070320 G96  0.0   0.0     070410 J95  1.0+  0.9-
    070225 G96  0.3+  0.1-    070320 J95  0.3+  0.1-    070411 291  0.3-  0.1+
    070225 G96  0.1+  0.1-    070320 J95  0.4-  0.1+    070411 291  0.1+  0.5+
    070225 G96  0.2+  0.0     070320 J95  0.2-  0.2+    070411 291  0.0   0.2-
    070225 G96  0.1+  0.1-    070321 291  0.1-  0.3+    070413 711  0.4+  1.2+
    070225 G96  0.0   0.2-    070321 291  0.3-  0.5+    070413 711  0.3-  0.5+
    070225 G96  0.5-  0.2-    070321 291  0.4-  0.4+    070413 711  1.3+  1.1+
    070225 G96  0.2-  0.2-    070321 G96  0.1+  0.1-    080916 568  0.0   0.0
    070225 G96  0.1+  0.2+    070321 G96  0.0   0.1+    080916 568  0.0   0.1+
    070225 G96  0.4+  0.3-    070321 G96  0.2-  0.2+    080916 568  0.0   0.0
    070225 G96  0.2+  0.1-    070321 G96  0.2-  0.2-    080916 568  0.0   0.0
    070320 G96  0.3-  0.2-    070321 658  0.2+  0.2+    081009 568  0.0   0.1-
    070320 G96  0.1-  0.0     070321 658  0.9-  0.2+    081009 568  0.0   0.0
    070320 G96  0.4-  0.1-    070321 658  0.6-  0.2+    081009 568  0.0   0.0
    070320 G96  0.2-  0.0     070410 H55  0.1+  0.1-    081009 568  0.0   0.0
    070320 G96  0.0   0.2-    070410 H55  0.2-  0.1+
    070320 G96  0.1-  0.0     070410 H55  0.5+  0.6+
    
    Ephemeris:
    2007 DU103               a,e,i = 2.46, 0.50, 23                  q = 1.2275
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2008 12 10    02 39.56   +48 48.3    2.421    3.245   140.9    11.0    22.7
    2008 12 20    02 31.98   +47 17.5    2.520    3.277   133.7    12.5    22.8
    2008 12 30    02 28.00   +45 46.8    2.639    3.308   125.5    14.0    23.0
    2009 01 09    02 27.38   +44 23.1    2.775    3.337   116.9    15.2    23.2
    2009 01 19    02 29.67   +43 10.4    2.924    3.365   108.3    16.1    23.3
    
    Gareth V. Williams           (C) Copyright 2008 MPC           M.P.E.C. 2008-X80
    

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