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IAUC 4280: 1986 WA

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                                                  Circular No. 4280
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 WA
     The following positions have been reported:

   1986 UT            R.A. (1950)  Decl.       Mag.   Observer
   Nov. 30.16458    0 23 19.56   +11 07 42.7          Maury
        30.17500    0 23 22.37   +11 07 18.6            "
   Dec.  1.97808    0 31 00.25   +10 09 30.7   16     Manning
         2.12008    0 31 34.63   +10 05 19.7   17     Schwartz
         2.13626    0 31 38.89   +10 04 53.3   16     Skiff
         3.11944    0 35 28.4    + 9 36 57            Reid
         3.16111    0 35 37.7    + 9 35 45              "
         4.15828    0 39 17.97   + 9 09 28.6   16.7   Scotti
         4.16188    0 39 18.71   + 9 09 23.5            "
         4.18486    0 39 23.52   + 9 08 49.0            "
         4.98974    0 42 13.75   + 8 48 58.0          Schwartz

A. Maury, N. Reid and J. Mueller (Palomar).  1.2-m Schmidt.  Nov.
   30 plate measured by S. Singer-Brewster.
B. Manning (Stakenbridge).
G. Schwartz (Oak Ridge).  1.5-m reflector.  Measurer: C.-Y. Shao.
B. A. Skiff (Lowell Observatory, Anderson Mesa Station).
   Measurer E. Bowell.  Position uncertain.
J. V. Scotti (Kitt Peak).  SPACEWATCH camera 0.91-m reflector.

     Orbital elements from the nine accurately measured positions:

          T = 1986 Sept. 18.040 ET
          W =  48.056                    e =   0.68043
          O = 235.657   1950.0           a =   1.41303 AU
          i =  28.182                    n =   0.586782
          q =   0.45156 AU               P =   1.68 years

     1986/87 ET   R.A. (1950) Decl.     Delta      r      Mag.
     Nov. 26     0 02.01    +13 55.1    0.369    1.225    15.8
     Dec.  1     0 26.97    +10 40.1
           6     0 45.63    + 8 25.9    0.525    1.332    16.6
          11     1 00.47    + 6 53.9
          16     1 12.90    + 5 51.4    0.697    1.433    17.4
          21     1 23.73    + 5 10.1
          26     1 33.49    + 4 44.4    0.879    1.527    18.0
          31     1 42.52    + 4 30.6
     Jan.  5     1 51.06    + 4 25.7    1.068    1.614    18.5


1986 December 5                (4280)              Brian G. Marsden

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