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IAUC 5274: 1991 JG1

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                                                  Circular No. 5274
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


1991 JG1
     E. F. Helin reports her discovery of a fast-moving asteroidal
object on films exposed by Helin, K. Lawrence, and P. Rose with the
0.46-m Schmidt telescope at Palomar.  The available observations
are listed below, with those by E. M. Shoemaker, C. S. Shoemaker,
and C. M. Olmstead (also at the 0.46-m Palomar Schmidt) having been
measured by T. M. King.

     1991 UT             R.A. (1950) Decl.       Mag.   Observer
     May   9.28194   14 20 36.54   -11 54 11.1   16.3   Helin
           9.30382   14 20 37.49   -11 49 19.8            "
          10.27430   14 21 41.30   - 8 17 56.1            "
          10.30348   14 21 42.63   - 8 11 43.6            "
          13.33733   14 24 45.45   + 1 46 49.6   17.5   Shoemaker
          13.37587   14 24 47.15   + 1 53 43.4            "
          15.34045   14 26 38.45   + 7 24 02.3            "
          19.19514   14 30 05.89   +16 06 37.0            "
          19.23611   14 30 07.51   +16 11 25.9            "

     Preliminary orbital elements by G. Williams, Center for Astrophysics:

     T = 1991 Mar. 27.034 ET          Peri. = 322.216
     e = 0.18185                      Node  = 225.797   1950.0
     q = 1.11907 AU                   Incl. =  33.696
       a =  1.36781 AU     n = 0.616122     P =   1.60 years

     1991 ET      R.A. (1950) Decl.     Delta      r       V
     May  24    14 34.16    +23 46.4    0.241    1.185    18.4
          26    14 35.83    +26 09.9
          28    14 37.50    +28 11.6    0.276    1.194    18.8
          30    14 39.17    +29 54.8
     June  1    14 40.86    +31 22.4    0.312    1.203    19.1
           3    14 42.56    +32 36.6
           5    14 44.28    +33 39.4    0.349    1.212    19.4
           7    14 46.03    +34 32.4
           9    14 47.81    +35 16.9    0.386    1.222    19.7
          11    14 49.63    +35 54.0
          13    14 51.49    +36 24.7    0.423    1.231    20.0


1991 May 24                    (5274)             Daniel W. E. Green

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