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IAUC 4186: 1986 DA

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                                                  Circular No. 4186
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


1986 DA
     The following precise positions have been reported:

   1986 UT          R.A.   (1950.0)   Decl.     B     Observers

   Feb.  5.44704    9 55 35.36   +27 53 12.5          Shoemaker
         7.36406    9 56 20.40   +28 17 47.2             "
        27.60589   10 05 40.92   +32 11 04.8   14.5   Kizawa
        27.66155   10 05 42.70   +32 11 32.2             "
        28.51250   10 06 21.29   +32 18 20.7   14     Kawasato
        28.53125   10 06 21.93   +32 18 30.4             "
        28.59131   10 06 23.75   +32 18 58.5   14.5   Kizawa
        28.62809   10 06 24.97   +32 19 15.8             "

N. Kawasato (Uenohara).  0.20-m refl.  Communicated by S. Nakano.
M. Kizawa (Shizuoka).  Measurer: T. Urata.  Communicated by Nakano.
C. S. and E. M. Shoemaker (Palomar).  0.46-m Schmidt telescope.
   Prediscovery positions.

     Orbital elements by T. Urata (from Nihondaira Observatory
Circular No. 1544), with full perturbations allowed for, from 18
observations covering Feb. 5-28:

         T = 1986 Apr. 7.6197 ET     Epoch = 1986 June 19.0 ET
     Peri. = 126.7066                    e =   0.586325
     Node  =  64.5487   1950.0           a =   2.818640 AU
     Incl. =   4.3009                    n =   0.2082786
         q =   1.166000 AU               P =   4.73 years

     1986 ET     R.A. (1950.0) Decl.      p        r       V

     Mar.  1    10 06.76    +32 21.8    0.283    1.251    13.6
           6    10 11.15    +32 51.5
          11    10 16.97    +33 02.8    0.252    1.213    13.5
          16    10 24.51    +32 51.2
          21    10 33.99    +32 13.0    0.229    1.186    13.3
          26    10 45.45    +31 04.6
          31    10 58.77    +29 23.3    0.213    1.170    13.2
     Apr.  5    11 13.68    +27 07.6
          10    11 29.82    +24 17.4    0.206    1.166    13.1
          15    11 46.80    +20 56.0
          20    12 04.12    +17 09.8    0.209    1.176    13.2
          25    12 21.35    +13 08.3
          30    12 38.08    + 9 02.1    0.225    1.197    13.3
     May   5    12 54.07    + 5 01.3


1986 March 4                   (4186)            Daniel W. E. Green

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