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IAUC 5279: 1991 JX

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                                                  Circular No. 5279
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 JX
     Further precise positions have been reported as follows:

     1991 UT             R.A. (1950) Decl.       Observer
     May  26.23591   14 08 10.95   + 1 21 17.4   Bus
          26.28039   14 08 17.02   + 1 23 50.3     "
          30.38472   14 23 45.49   + 6 17 50.4   Kaminski
          30.52550   14 24 26.59   + 6 32 28.9   Gilmore
          30.53071   14 24 28.00   + 6 32 55.8     "

S. J. Bus and A. Sadun (Lowell Observatory, Anderson Mesa Station).  1.1-m
   reflector + CCD.  Measurer Bus.  Communicated by E. Bowell.
C. Kaminski (Mauna Kea).  IRTF encoders.  Communicated by D. Tholen.
A. C. Gilmore (Mount John).  0.6-m reflector.  Measurer P. M. Kilmartin.

     Improved orbital elements from 15 observations May 9-30:

     T = 1991 June 25.5407 ET         Peri. =  64.0186
     e = 0.598944                     Node  = 212.6279  1950.0
     q = 1.011955 AU                  Incl. =   2.3325
       a =  2.523225 AU    n = 0.2459065    P =   4.008 years

     1991 ET      R.A. (1950) Decl.     Delta      r        V
     June  1    14 32.83    + 8 56.1    0.064    1.062    14.7
           2    14 39.68    +10 50.7
           3    14 47.74    +13 01.0    0.055    1.055    14.5
           4    14 57.31    +15 29.7
           5    15 08.78    +18 19.3    0.048    1.047    14.2
           6    15 22.67    +21 32.1
           7    15 39.64    +25 09.2    0.041    1.041    14.0
           8    16 00.56    +29 08.9
           9    16 26.42    +33 24.2    0.036    1.035    13.9
          10    16 58.25    +37 40.9
          11    17 36.61    +41 36.0    0.033    1.030    13.9
          12    18 20.90    +44 41.8
          13    19 08.70    +46 35.5    0.034    1.025    14.2
          14    19 56.11    +47 09.8
          15    20 39.44    +46 36.0    0.037    1.022    14.7
          16    21 16.63    +45 15.3
          17    21 47.36    +43 29.2    0.042    1.018    15.2


1991 May 31                    (5279)              Brian G. Marsden

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