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IAUC 4565: 1988 EG

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                                                  Circular No. 4565
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


1988 EG
     Jeff Alu, Jet Propulsion Laboratory, California Institute of
Technology, reports his discovery of a fast-moving asteroidal object
with the 0.46-m Schmidt telescope at Palomar in the course of
the International Near-Earth Asteroid Survey under the direction of
E. Helin.  The following precise positions are available:

   1988 UT            R. A.  (1950)  Decl.       Mag.    Observer
   Mar. 12.30677    11 11 54.76   - 1 17 51.9    16.0    Alu
        13.30920    11 09 43.74   - 0 18 15.9             "
        15.29427    11 06 09.17   + 1 20 53.1             "
        18.15136    11 02 20.02   + 3 10 26.1    17      Shao
        18.32094    11 02 06.65   + 3 15 58.5            McCrosky

J. Alu, B. Roman and R. Crockett (Palomar).
C.-Y. Shao and R. E. McCrosky (Oak Ridge).  Measurer Shao.

     An orbit determination from the above observations by C. M.
Bardwell, Center for Astrophysics, shows the object to be of Apollo
type (the closest approach to the earth was 0.042 AU on Feb. 26):

         T     = 1988 Jan. 2.85 ET
         Peri. = 241.51                    e =   0.5232
         Node  = 182.09   1950.0           a =   1.3067 AU
         i     =   3.71                    n =   0.65981
         q     =   0.6231 AU               P =   1.49 years

     1988 ET     R. A. (1950) Decl.     Delta      r       V
     Mar.  4    11 51.75    -18 15.5    0.069    1.053    14.3
           6    11 36.19    -11 54.9
           8    11 25.70    - 7 24.9    0.098    1.089    14.8
          10    11 18.21    - 4 06.9
          12    11 12.64    - 1 37.0    0.131    1.124    15.2
          14    11 08.38    + 0 19.3
          16    11 05.08    + 1 51.6    0.166    1.159    15.9
          18    11 02.50    + 3 05.9
          20    11 00.49    + 4 06.5    0.203    1.193    16.6
          22    10 58.95    + 4 56.2
          24    10 57.80    + 5 37.4    0.241    1.227    17.1
          26    10 56.98    + 6 11.4
          28    10 56.44    + 6 39.7    0.281    1.260    17.6
          30    10 56.15    + 7 03.0
     Apr.  1    10 56.08    + 7 22.2    0.323    1.292    18.0


1988 March 18                  (4565)            Daniel W. E. Green

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