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IAUC 3816: 1983g; 1983e

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                                                  Circular No. 3816
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


PERIODIC COMET DU TOIT-NEUJMIN-DELPORTE (1983g)
     J. Gibson reports that he has recovered this comet on
exposures with the 1.2-m Schmidt at Palomar as follows:

       1983 UT            R.A.    (1950.0)    Decl.      m2

       May  20.44728     22 16 30.63     - 7 21 07.9     19
            21.44519     22 18 41.64     - 7 08 17.3

The comet is essentially stellar, but there is a trace of coma.
The correction to the ephemeris on MPC 7476 is Delta-T = -0.11 day.


COMET SUGANO-SAIGUSA-FUJIKAWA (1983e)
     Further precise positions have been reported as follows:

     1983 UT           R.A.    (1950.0)   Decl.     Observer

     May  10.77135     1 28 12.61    +39 55 43.1    Takatsuki
          10.77326     1 28 12.12    +39 55 44.9    Suzuki
          10.77500     1 28 11.89    +39 55 46.6      "
          10.78090     1 28 10.87    +39 55 51.1    Seki
          12.79097     1 22 37.75    +40 19 51.0      "
          12.79635     1 22 36.61    +40 19 51.4      "
          19.47575     1 05 18.98    +41 03 18.8    Gibson
          20.46047     1 02 50.78    +41 05 56.5      "
          21.41597     1 00 26.37    +41 07 43.6    Everhart
          21.46863     1 00 18.39    +41 07 50.3    Gibson
          22.32668     0 58 06.4     +41 08 38      McCrosky

Y. Takatsuki (Yatsugatake Observatory) and K. Suzuki (JCPM Oi
   Station).  Measurer: T. Urata.
T. Seki (Geisei).  From Yamamoto Circ. No. 1994.
J. Gibson (Palomar Mountain Observatory).  1.2-m Schmidt.
E. Everhart (Chamberlin Observatory field station).
R. E. McCrosky (Oak Ridge Observatory).  Damon camera.

     The following parabolic elements have been determined by the
undersigned from 22 observations May 9-21.  The corresponding
ephemeris indicates that the comet may be 1 deg southwest of the
prediction on IAUC 3812 in mid-June, but the uncertainty is still 0.5 deg.

         T = 1983 May 1.3066 ET  Peri. =  82.1183
                                 Node  =  82.3132   1950.0
         q =   0.470568 AU       Incl. =  96.5677


1983 May 24                    (3816)              Brian G. Marsden

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