Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 5662: 1992 UY4

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 5661 SEARCH Read IAUC 5663

View IAUC 5662 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 5662
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@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


1992 UY4
     C. S. Shoemaker reports her measurements of an asteroidal object
found on films taken in late October by E. M. Shoemaker, H. E. Holt,
D. H. Levy and herself with the 0.46-m Palomar Schmidt.  Computations
by the undersigned indicated an Amor-like orbit with a perihelion
distance very close to 1 AU.  In collaboration with S. Nakano
(Sumoto, Japan), further observations were obtained in November by
A. Sugie (Dynic Astronomical Observatory) and T. Seki (Geisei).

     1992 UT             R.A. (2000) Decl.      Mag.  Observer
     Oct. 25.48541    4 04 09.60   +36 16 18.6  17.2  Shoemaker
          25.52152    4 04 06.49   +36 15 35.2          "
          26.44166    4 03 02.60   +35 58 26.7          "
          26.49305    4 02 58.19   +35 57 24.9          "
     Nov. 17.58125    3 38 52.61   +29 49 13.4  17.0  Sugie
          17.59514    3 38 51.96   +29 49 02.5          "
          18.56319    3 38 04.68   +29 35 14.3          "
          18.57569    3 38 04.15   +29 35 06.4          "
          23.46910    3 34 36.58   +28 29 15.9  17    Seki
          23.48785    3 34 35.92   +28 29 07.0          "
          25.50139    3 33 26.23   +28 04 01.2  17      "
          25.51285    3 33 25.77   +28 03 54.4          "

     Nakano supplies elements based on 11 of the above positions:

     T = 1992 Sept. 8.852 TT          Peri. =  37.814
     e = 0.62836                      Node  = 308.684   2000.0
     q = 1.00919 AU                   Incl. =   2.874
       a =  2.71552 AU     n = 0.220255     P =   4.47 years

     These elements indicate opposition in June 1992 (declination
-29 degrees) and an approach to within 0.031 AU of the earth on
Sept. 7.9 (declination +81 degrees).

1992/93     R. A. (2000) Decl.   Delta     r    Elong. Phase    V
Nov. 24     3 34.27   +28 22.7   0.422   1.405  170.3    6.8   16.6
Dec.  4     3 30.35   +26 31.7   0.517   1.487  163.0   11.2   17.3
     14     3 30.32   +25 10.8   0.628   1.571  153.4   16.3   18.0
     24     3 33.70   +24 16.7   0.755   1.655  144.1   20.4   18.7
Jan.  3     3 39.97   +23 44.9   0.897   1.740  135.4   23.4   19.3


1992 November 27               (5662)            Gareth V. Williams

Read IAUC 5661 SEARCH Read IAUC 5663

View IAUC 5662 in .dvi or .ps format.

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!