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IAUC 5646: 1992y

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                                                  Circular No. 5646
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


COMET SHOEMAKER (1992y)
     The following precise positions have been reported:

     1992 UT             R.A. (2000) Decl.        m1    Observer
     Oct. 25.47413    4 23 43.99   +25 46 29.4   15.5   Shoemaker
          25.51006    4 23 41.27   +25 47 10.5            "
          26.35381    4 22 38.75   +26 03 31.3            "
          26.41163    4 22 34.37   +26 04 38.4            "
          26.52152    4 22 25.87   +26 06 45.0            "
          27.80417    4 20 46.17   +26 31 53.5   15     Seki
          27.81250    4 20 45.58   +26 32 03.3            "
          27.82128    4 20 44.83   +26 32 10.8   15       "

E. M. Shoemaker, D. H. Levy, and H. Holt (Palomar).  0.46-m Schmidt
   films.  Measured by C. S. Shoemaker and B. Cudnik.
T. Seki (Geisei).  Communicated by S. Nakano.

     Preliminary parabolic orbital elements by the undersigned from
the 9 available positions, Oct. 25-27:

     T = 1993 Mar. 25.83 TT           Peri. =  54.97
                                      Node  =  55.30    2000.0
     q = 2.3111 AU                    Incl. =  65.99

1992 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Oct.  5     4 39.86   +19 53.6   2.351   2.990  120.9   16.7   15.6
     10     4 37.42   +21 11.6   2.255   2.956  126.2   15.8   15.5
     15     4 34.07   +22 34.9   2.164   2.924  131.7   14.7   15.3
     20     4 29.73   +24 03.6   2.079   2.891  137.4   13.5   15.2
     25     4 24.31   +25 37.4   2.000   2.860  143.2   12.0   15.1
     30     4 17.75   +27 15.4   1.930   2.828  149.1   10.4   14.9
Nov.  4     4 10.04   +28 56.7   1.868   2.798  154.8    8.7   14.8
      9     4 01.17   +30 39.7   1.816   2.768  160.1    7.0   14.7
     14     3 51.20   +32 22.6   1.774   2.738  164.1    5.7   14.6
     19     3 40.26   +34 03.1   1.742   2.710  165.4    5.3   14.5
     24     3 28.52   +35 39.2   1.721   2.682  163.4    6.0   14.5
     29     3 16.25   +37 08.8   1.710   2.654  159.0    7.7   14.4
Dec.  4     3 03.75   +38 30.5   1.710   2.628  153.3    9.7   14.4


1992 October 28                (5646)            Daniel W. E. Green

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