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IAUC 4917: 1989 WM

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                                               Circular No. 4917
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


1989 WM
     C. S. Shoemaker reports her discovery of a fast-moving
asteroidal object on films exposed with the 0.46-m Schmidt at
Palomar.  The following precise positions have been reported:

     1989 UT             R.A. (1950) Decl.       Mag.   Observer
     Nov. 28.47829    7 36 33.78   +25 18 38.7   17.5   Shoemaker
          28.52500    7 36 39.51   +25 18 41.7            "
     Dec.  1.11663    7 42 16.35   +25 22 44.6          McCrosky
           1.15528    7 42 21.34   +25 22 49.1            "
           1.30073    7 42 40.1    +25 23 09            Scotti
           1.42940    7 42 55.73   +25 23 21.7          Larson
           1.46666    7 43 00.25   +25 23 24.8            "
           2.26205    7 44 42.86   +25 24 40.5          McCrosky
           2.27330    7 44 44.21   +25 24 41.5            "

C. and E. Shoemaker, D. Levy, and H. E. Holt (Palomar).
J. V. Scotti and D. L. Rabinowitz (Kitt Peak).  0.91-m Spacewatch
  Telescope + 2048x2048 CCD.  Preliminary reduction.
S. Larson (Lunar and Planetary Laboratory's Catalina Station).
  1.5-m reflector + CCD.  Measured by S. J. Bus.
R. E. McCrosky and C.-Y. Shao (Oak Ridge).  1.5-m reflector + CCD.

     Preliminary orbital elements by C. M. Bardwell:

     T = 1990 Jan. 19.832 ET          Peri. =  74.660
     e = 0.47611                      Node  =  47.054   1950.0
     q = 1.29002 AU                   Incl. =   2.426
       a =  2.46237 AU     n = 0.255078     P =   3.86 years

     1989/90      R.A. (1950) Decl.     Delta      r       V
     Nov. 30     7 39.86    +25 21.1    0.510    1.392    16.4
     Dec.  5     7 50.50    +25 29.4
          10     8 00.85    +25 38.4    0.447    1.358    16.0
          15     8 10.83    +25 48.2
          20     8 20.34    +25 58.7    0.395    1.329    15.6
          25     8 29.26    +26 10.0
          30     8 37.52    +26 21.5    0.356    1.308    15.2
     Jan.  4     8 45.03    +26 32.6
           9     8 51.77    +26 42.2    0.329    1.295    14.9


1989 December 6                (4917)             Daniel W. E. Green

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