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IAUC 4737: 1979 VA

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IAUC number 

                                                  Circular No. 4737
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


1979 VA
     This Apollo-type object has been recovered independently by
J. Gibson at Palomar and K. S. Russell at Siding Spring, with the
following new observations available.  The indicated correction to
the prediction on MPC 14014 (ephemeris on MPC 14032) is Delta(T) =
+0.62 day.

     1988/89 UT          R.A. (1950) Decl.       Mag.   Observer
     Dec. 20.52003    9 53 44.82   +10 21 54.5   20.5   Gibson
          20.53411    9 53 44.45   +10 21 55.3            "
          20.54341    9 53 44.21   +10 21 55.7            "
          24.44260    9 51 54.55   +10 26 04.5            "
          24.46197    9 51 54.01   +10 26 05.1            "
          24.57035    9 51 50.42   +10 26 14.0            "
     Feb.  6.52840    9 08 00.47   +13 18 14.5   20     Hartley
           6.58049    9 07 56.72   +13 18 28.7            "

J. Gibson (Palomar).  1.5-m reflector + CCD.
M. Hartley (Siding Spring).  U.K. Schmidt Telescope, J plate.
  Measures of star-trail ends by R. H. McNaught.

     Improved orbital elements by B. G. Marsden, Center for Astrophysics,
from 61 observations 1979 June 15-1989 Feb. 6:

                    Epoch = 1989 Oct.  1.0 ET
     T = 1988 May   7.8415 ET         Peri. =  91.0465
     e = 0.622771                     Node  = 270.2317  1950.0
     q = 0.996116 AU                  Incl. =   2.7855
       a =  2.640616 AU    n = 0.2296921    P =   4.291 years

     1989 ET      R.A. (1950) Decl.     Delta      r       V
     Feb.  3     9 12.18    +13 00.6    1.875    2.859    19.3
          13     9 00.68    +13 49.3
          23     8 50.66    +14 32.4    2.041    2.977    19.9
     Mar.  5     8 42.85    +15 07.2
          15     8 37.60    +15 32.6    2.315    3.088    20.5
          25     8 34.96    +15 48.6
     Apr.  4     8 34.76    +15 55.7    2.663    3.194    20.9


1989 February 13               (4737)             Daniel W. E. Green

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