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  • MPEC 2010-C78 : 2007 CH15

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    M.P.E.C. 2010-C78                                Issued 2010 Feb. 15, 15:37 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 CH15
    
                               Revision to MPEC 2007-C39
    
    Additional Observations:
         K07C15H 2C2009 12 09.49260505 56 10.288-21 50 10.97         24.5 R EC078568
         K07C15H 2C2009 12 09.49761505 56 09.737-21 50 10.18         23.9 R EC078568
         K07C15H 2C2009 12 09.50721905 56 08.694-21 50 08.67         23.6 R EC078568
         K07C15H 2C2010 01 18.28834404 54 13.803-11 15 16.67         23.7 R EC078568
         K07C15H 2C2010 01 18.29489604 54 13.448-11 15 06.75         23.1 R EC078568
    
    Observer details:
    568 Mauna Kea.  Observers M. Micheli, G. T. Elliott, 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 15.3-  4.4-    100118 568 12.9-  2.7-    MPO122873   +0.0082 day
    
    Orbital elements:
    2007 CH15                                                Earth MOID = 0.1059 AU
    Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
    M 204.84331              (2000.0)            P               Q
    n   0.60775950     Peri.  114.71744     -0.21881993     +0.93296172
    a   1.3803256      Node   139.11164     -0.97572091     -0.21200421
    e   0.2849652      Incl.   25.89102     +0.00930250     -0.29092377
    P   1.62           H   21.7           G   0.15           U   2
    Residuals in seconds of arc
    070208 G96  0.1+  0.3-    070217 G96  0.2+  0.2-    070716 H55  0.1+  0.1-
    070208 G96  0.6+  0.1-    070221 G96  0.1+  0.5-    070725 H55  0.1+  0.8+
    070208 G96  0.1-  0.6-    070221 G96  0.0   0.6-    070725 H55  0.6+  0.0
    070208 G96  0.1-  0.2-    070221 G96  0.1-  0.3-    070725 H55  0.8+  0.2+
    070208 G96  0.5+  1.4-    070221 G96  0.3+  0.4-    070802 H55  1.1+  0.4+
    070208 G96  0.1-  0.2+    070225 G96  0.3+  0.0     070802 H55  0.5+  0.3+
    070208 G96  1.6-  0.3+    070225 G96  0.2+  0.1+    070802 H55  0.1+  0.0
    070209 291  0.2-  0.1+    070225 G96  0.1+  0.0     070808 J95  0.5-  0.4+
    070209 291  0.1+  0.0     070225 G96  0.2-  0.3+    070808 J95  0.1-  0.1+
    070209 291  0.4-  0.3-    070312 G96  0.2+  0.4+    070808 J95  0.2-  1.1-
    070209 B21  0.2+  0.5+    070312 G96  0.1+  0.0     091209 568  0.0   0.1+
    070209 B21  0.4+  0.2+    070312 G96  0.0   0.7+    091209 568  0.1-  0.1+
    070209 B21  0.0   0.2-    070312 G96  0.4+  0.3+    091209 568  0.1-  0.1+
    070217 G96  0.2+  0.3-    070716 H55  0.2+  0.4+    100118 568  0.0   0.1+
    070217 G96  0.0   0.1+    070716 H55  1.1-  0.1+    100118 568  0.0   0.1+
    070217 G96  0.0   0.1+    070716 H55  0.5+  0.8+
    
    Ephemeris:
    2007 CH15                a,e,i = 1.38, 0.28, 26                  q = 0.9870
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2010 02 13    04 48.88   -00 08.0    1.130    1.686   105.4    34.4    24.5
    2010 02 23    04 54.66   +03 55.0    1.204    1.664    98.2    36.1    24.7
    2010 03 05    05 04.00   +07 39.7    1.280    1.638    91.4    37.2    24.8
    2010 03 15    05 16.41   +11 04.5    1.356    1.611    85.0    38.0    24.9
    2010 03 25    05 31.53   +14 08.6    1.430    1.581    79.1    38.3    25.0
    
    Gareth V. Williams           (C) Copyright 2010 MPC           M.P.E.C. 2010-C78
    

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