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IAUC 3539: 1980q; 1980 S 28

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IAUC number 

                                                  Circular No. 3539
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 617-864-5758


COMET MEIER (1980q)
     Further precise positions have been reported as follows:

     1980 UT             R. A. (1950) Decl.        m1   Observer
     Nov.  8.39618    18 04 12.01   +40 44 46.3   11     Furuta
           8.40503    18 04 11.32   +40 44 27.2            "
           9.41285    18 03 20.83   +40 08 11.5            "
           9.41979    18 03 20.52   +40 07 55.1            "
          11.11667    18 02 03.11   +39 08 56.0          Skiff
          12.11944    18 01 21.57   +38 35 15.9          Bowell

T. Furuta (Tokai). Communicated by T. Urata.
B. A. Skiff and E. Bowell (Lowell Observatory, Anderson Mesa Station).
   0.33-m photographic telescope.  Measurer: Bowell.

     Improved orbital elements by the undersigned:

       T = 1980 Dec. 9.452 ET    Peri. =  87.863
                                 Node  =  24.806   1950.0
       q = 1.52204 AU            Incl. = 101.032

     1980 ET     R. A. (1950) Decl.     Delta     r      m1
     Nov. 17    17 58.63    +36 03.0    1.678   1.554   10.0
          22    17 56.68    +33 45.5
          27    17 55.36    +31 44.7    1.796   1.532   10.1
     Dec.  2    17 54.50    +29 58.7
           7    17 53.97    +28 25.9    1.895   1.522   10.2
          12    17 53.66    +27 04.9
          17    17 53.48    +25 54.4    1.971   1.526   10.3
          22    17 53.34    +24 53.3
          27    17 53.19    +24 00.8    2.018   1.542   10.4

     Selected total visual magnitude estimates: Nov. 8.00 UT, 9.6
(J. Bortle, Stormville, NY, 0.32-m reflector); 9.08, 9.5 (D. W. E.
Green, Harvard, MA, 0.20-m reflector).


1980 S 28
     The above provisional designation is given to another
satellite of Saturn discovered from the Voyager 1 spacecraft.  According
to press reports, its orbital period is 0.597 day, its mean distance
2.28 Rs (800 km outside Ring A) and its diameter ~ 100 km.


1980 November 13               (3539)              Brian G. Marsden

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