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IAUC 4638: 1988 OG

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                                                  Circular No. 4638
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


1988 OG
     C. S. Shoemaker reports her discovery of an apparent Amor-type
object on films taken at Palomar.  The following observations are available:

     1988 UT             R.A. (1950) Decl.       Mag.   Observer
     July 20.39323   22 34 05.52   +37 55 15.7   16     Holt
          20.43281   22 34 11.20   +37 54 49.7            "
     Aug.  9.29375   23 24 29.94   +29 17 03.7   15.7   Ziegler
           9.34306   23 24 36.61   +29 14 53.9   15.2      "
          10.37847   23 27 04.31   +28 27 17.1             "
          10.43819   23 27 12.08   +28 24 30.9             "

H. E. Holt, H. R. Holt, and T. A. Rodriquez (Palomar).  0.46-m Schmidt.
K. W. Ziegler (Lowell Obs., Anderson Mesa Sta.).  0.33-m Pluto telescope.

     Preliminary orbital elements from the above observations:

     T = 1988 Aug. 1.87 ET            Peri. = 154.24
     e = 0.3311                       Node  = 164.38    1950.0
     q = 1.2285 AU                    Incl. =  23.41
       a =  1.8367 AU      n = 0.39597      P =   2.49 years

     1988 ET      R.A. (1950) Decl.     Delta      r       V
     Aug.  7    23 18.92    +30 53.9    0.336    1.229    14.6
           9    23 23.77    +29 30.2
          11    23 28.53    +27 57.7    0.318    1.231    14.4
          13    23 33.19    +26 16.0
          15    23 37.72    +24 24.9    0.303    1.234    14.2
          17    23 42.12    +22 24.4
          19    23 46.38    +20 14.5    0.289    1.238    14.0
          21    23 50.50    +17 55.5
          23    23 54.45    +15 28.0    0.279    1.243    13.8
          25    23 58.23    +12 52.6
          27     0 01.83    +10 10.6    0.272    1.249    13.7
          29     0 05.25    + 7 23.0
          31     0 08.47    + 4 31.5    0.269    1.255    13.6
     Sept. 2     0 11.50    + 1 37.6
           4     0 14.32    - 1 16.8    0.270    1.263    13.5


1988 August 11                 (4638)            Daniel W. E. Green

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