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IAUC 3429: 1979 VA

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                                                  Circular No. 3429
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


1979 VA
     Further precise positions have been reported as follows:

     1979 UT             R. A. (1950) Decl.       Mag.   Observer
     Nov. 16.29375     1 38 50.46   +25 03 26.4          Harlan
          16.30069     1 38 53.38   +25 03 23.0            "
          17.14603     1 45 02.49   +24 55 59.8          McCrosky
          17.15610     1 45 06.54   +24 55 54.3            "
          18.58601     1 54 40.52   +24 42 41.5   13     Zhang
          18.83073     1 56 13.93   +24 39 59.3   13     Manning
          18.84635     1 56 19.50   +24 39 49.2            "
          18.85903     1 56 24.20   +24 39 42.6            "
          19.43056     1 59 54.03   +24 34 18.8   12     Seki
          19.44097     1 59 57.72   +24 34 11.7            "
          22.18951     2 14 50.23   +24 06 20.5          McCrosky
          28.28679     2 39 55.35   +23 07 58.8            "

E. A. Harlan (Lick Observatory).  0.5-m astrograph.  Beginning and
   end of trail.  Measurer: A. R. Klemola.
R. E. McCrosky (Harvard College Observatory, Agassiz Station).
J. Zhang, J. Yang, Q. Wang and C.-Y. Shao (Purple Mountain Observatory).
   0.4-cm f/7.5 astrograph.  Measurer: Shao.
B. Manning (Stakenbridge).  Communicated by G. M. Hurst.
T. Seki (Geisei).  From Yamamoto Circ. No. 1927.

     The orbital eccentricity is still rather uncertain.  It seems
likely that the object is of Alinda type (3:1 resonance with Jupiter),
however, and in the following set of elements, derived by the
undersigned from 25 observations, the eccentricity was assumed:

       T = 1979 Oct. 5.399 ET
   Peri. =  89.127                    e =   0.60800
   Node  = 272.088   1950.0           a =   2.49947 AU
   Incl. =   2.710                    n =   0.249420
       q =   0.97979 AU               P =   3.95 years

     1979/80 ET  R. A. (1950) Decl.     Delta     r      B
     Dec. 23     3 33.99    +21 03.6
     Jan.  2     3 49.15    +20 52.8    0.591   1.482   17.7
          12     4 03.69    +20 55.1
          22     4 18.31    +21 05.5    0.868   1.649   18.8

       B = 17.4 + 5 log Delta + 5 log r + 0.023 (phase angle)


1979 December 10               (3429)              Brian G. Marsden

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