• MPC Preparation (Info)

    • MPEC 2009-G34 : 2001 XD255

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    Read MPEC 2009-G33 Read MPEC 2009-G35 

    M.P.E.C. 2009-G34                                Issued 2009 Apr. 10, 21:28 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

                                  2001 XD255

                           Revision to MPEC 2002-B07

Additional Observations:
     K01XP5D  C2003 11 24.43551 07 23 51.81 +22 34 11.3          21.3 R EG034695
     K01XP5D  C2003 11 24.52897 07 23 51.48 +22 34 12.3                 EG034695
     K01XP5D  C2005 12 23.42949 07 33 52.19 +23 09 02.9          21.0 R EG034568
     K01XP5D  C2005 12 23.46500 07 33 52.00 +23 09 02.6                 EG034568

Observer details:
568 Mauna Kea.  Observers J. Pittichova, K. J. Meech.  Measurer K. J. Meech.
    2.2-m reflector + CCD.
695 Kitt Peak.  Observers L. H. Wasserman, E. I. Chiang, J. R. Lovering.
    Measurers M. W. Buie, R. L. Millis, L. H. Wasserman, E. I. Chiang,
    J. J. Qu, K. B. Clancy, J. R. Lovering, S. D. Kern.  4-m reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
031124 695 0.31+ 0.03-    051223 568 0.70+ 0.04-    MPO 26094

Orbital elements:
2001 XD255
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 269.93665              (2000.0)            P               Q
n   0.00400454     Peri.  111.96427     -0.73674210     +0.60690083
a  39.2736488      Node   106.69566     -0.67582826     -0.67502089
e   0.1096187      Incl.   18.13474     +0.02161577     -0.41954521
P 246              H    5.5           G   0.15           U   4
Residuals in seconds of arc
011209 568  0.1-  0.0     020114 568  0.1+  0.1-    031124 695  0.0   0.1-
011209 568  0.1+  0.2+    020223 568  0.0   0.0     051223 568  0.0   0.5+
011209 568  0.0   0.3+    020223 568  0.0   0.2-    051223 568  0.0   0.4-
020114 568  0.0   0.2-    031124 695  0.0   0.0

Ephemeris:
2001 XD255               a,e,i = 39.27, 0.11, 18                 q = 34.969
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 04 09    07 45.61   +24 07.1   39.671   39.767    94.8     1.4    21.7
2009 04 19    07 45.75   +24 06.7   39.838   39.764    85.1     1.4    21.7
2009 04 29    07 46.07   +24 05.9   40.003   39.761    75.4     1.4    21.7
2009 05 09    07 46.56   +24 04.7   40.161   39.758    65.8     1.3    21.7
2009 05 19    07 47.21   +24 03.2   40.307   39.755    56.4     1.2    21.7
2009 05 29    07 48.01   +24 01.3   40.437   39.753    47.0     1.1    21.7
2009 06 08    07 48.92   +23 59.2   40.549   39.750    37.6     0.9    21.7

Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-G34

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