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IAUC 5138: 1990 UL3

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                                                  Circular No. 5138
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


1990 UL3
     C. S. Shoemaker reports her discovery of an asteroidal object
on films taken in October and November by E. M. Shoemaker, D. H.
Levy, and herself with the 0.46-m Schmidt telescope at Palomar.
Images were also found on September exposures at Palomar by H. E.
Holt, H. R. Holt, C. M. Olmstead, and J. A. Brown.

     1990 UT             R.A. (1950) Decl.       Mag.
     Sept.17.43524    1 45 00.90   +17 35 32.3   17.6
          17.46944    1 45 01.56   +17 35 33.5
          20.51396    1 45 55.33   +17 35 29.9
     Oct. 25.37447    1 41 56.61   +15 05 04.4   17
          25.41319    1 41 55.81   +15 04 47.5
     Nov. 13.23819    1 39 08.23   +13 04 54.4   17.7
          13.27777    1 39 08.14   +13 04 39.8
          15.24462    1 39 14.02   +12 54 29.4
          15.27447    1 39 14.23   +12 54 18.5

     The following orbital elements by G. V. Williams, Center for
Astrophysics, indicate that this is a Jupiter-crossing object
(Q = 6.98 AU):

     T = 1990 Sept.25.3976 ET         Peri. = 140.1435
     e = 0.582057                     Node  = 235.2317  1950.0
     q = 1.843691 AU                  Incl. =   4.6387
       a =  4.411346 AU    n = 0.1063769    P =   9.265 years

     1990/91      R.A. (1950) Decl.     Delta      r       V
     Nov.  5     1 39.65    +13 53.9    0.907    1.885    16.6
          15     1 39.22    +12 55.8
          25     1 41.16    +12 14.4    1.035    1.933    17.3
     Dec.  5     1 45.73    +11 53.4
          15     1 52.79    +11 52.4    1.233    1.998    17.9
          25     2 02.09    +12 09.4
     Jan.  4     2 13.31    +12 40.9    1.486    2.076    18.5
          14     2 26.10    +13 23.0
          24     2 40.18    +14 12.3    1.779    2.165    19.0
     Feb.  3     2 55.31    +15 05.6
          13     3 11.25    +16 00.2    2.097    2.264    19.4


1990 November 29               (5138)             Daniel W. E. Green

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