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IAUC 4720: 1989e; NOTICE TO SUBSCRIBERS

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IAUC number 

                                                  Circular No. 4720
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 or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


COMET SHOEMAKER (1989e)
     Precise positions measured by C. S. Shoemaker from films taken by
E. M. Shoemaker and herself with the 0.46-m Palomar Schmidt:

     1989 UT             R.A. (1950) Decl.        m1
     Jan. 13.52725   10 12 18.67   +19 05 54.7    13
          13.54531   10 12 17.39   +19 06 37.5
          14.38489   10 11 19.87   +19 39 15.1

     The following parabolic orbital elements are rather uncertain:

     T = 1989 Feb. 15.67 ET           Peri. =  15.70
                                      Node  = 136.44    1950.0
     q = 2.6595 AU                    Incl. =  96.39

     1989 ET      R.A. (1950) Decl.     Delta      r       m1
     Jan. 14    10 11.78    +19 24.2    1.819    2.682    13.1
          19    10 05.45    +22 44.2
          24     9 57.97    +26 12.8    1.736    2.670    13.0
          29     9 49.34    +29 45.2
     Feb.  3     9 39.63    +33 15.9    1.709    2.663    12.9
           8     9 28.95    +36 39.2
          13     9 17.51    +39 49.7    1.741    2.660    13.0
          18     9 05.59    +42 43.3
          23     8 53.49    +45 17.6    1.826    2.661    13.1

     Corrigendum.  On IAUC 4718, line 8, for Dynac read Dynic.  Further,
the note about the communicator refers to the Chiyoda observation.


NOTICE TO SUBSCRIBERS
     With reference to IAUC 4626, we remind Computer Service subscribers
of the possibility of receiving these Circulars by e-mail.  This system
is working moderately well, although there are often extensive delays
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wait until the printed copies arrive.


1989 January 18                (4720)              Brian G. Marsden

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