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IAUC 3881: 1983 TB AND THE GEMINID METEORS; 1983 SA; KR Aur

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                                                  Circular No. 3881
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


1983 TB AND THE GEMINID METEORS
     F. L. Whipple, Center for Astrophysics, informs us that the
orbital elements of 1983 TB shown on IAUC 3879 are virtually
coincident with the mean orbital elements of 19 Geminid meteors
photographed with the super-Schmidt meteor cameras (Jacchia and Whipple
1961, Smithsonian Contrib. Ap. 4, 97), namely,

    Peri. = 324.3 +/- 0.5             e =   0.897 +/- 0.005
    Node  = 260.3 +/- 1.8  1950.0     a =   1.372 +/- 0.060 AU
    Incl. =  23.3 +/- 0.7             q =   0.141 +/- 0.002 AU


1983 SA
     R. S. Dunbar reports the following positions, measured by S.
Swanson, of the ends of a prediscovery trail recorded with the
1.2-m Schmidt telescope at Palomar:

         1983 UT              R.A.   (1950.0)    Decl.

         Sept.12.36319      23 37 32.82      - 2 51 29.7
              12.37361      23 37 30.65      - 2 50 44.5

     Ephemeris continuation from MPC 8214:

     1983/84 ET  R.A. (1950.0) Decl.      p        r      Mag.

     Nov.  2    22 40.56    +22 38.0    0.944    1.729    16.2
          12    22 47.08    +23 48.2
          22    22 56.32    +24 46.3    1.270    1.896    17.1
     Dec.  2    23 07.57    +25 40.0
          12    23 20.34    +26 33.4    1.626    2.066    17.8
          22    23 34.24    +27 29.2
     Jan.  1    23 49.01    +28 27.9    2.001    2.236    18.4
          11     0 04.47    +29 30.1
          21     0 20.45    +30 35.6    2.386    2.405    18.8
          31     0 36.84    +31 43.6
     Feb. 10     0 53.59    +32 53.7    2.768    2.570    19.2
          20     1 10.60    +34 05.1
     Mar.  1     1 27.85    +35 16.9    3.135    2.732    19.6


KR AURIGAE
     Further visual magnitude estimates by J. Bortle, Stormville,
NY: Sept. 4.4 UT, 13.6; 8.4, 13.8.


1983 October 25                (3881)              Brian G. Marsden

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