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IAUC 5531: 1992 KD; 1992d

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                                                  Circular No. 5531
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 KD
     E. F. Helin reports the discovery of a fast-moving asteroidal
object by herself and K. Lawrence on films taken by Lawrence, P.
Rose, and J. Alu.  The following measurements are by Rose:

     1992 UT             R.A. (2000) Decl.       Mag.
     May  27.24566   14 44 14.02   -18 45 47.7   15.5
          27.26892   14 44 15.49   -18 43 39.0
          28.21076   14 45 36.93   -17 20 44.8   15.5
          28.33299   14 45 45.96   -17 10 02.5
          29.29306   14 47 08.99   -15 46 39.6   16
          29.37812   14 47 15.38   -15 39 17.1

     Orbital elements from the above observations by G. V. Williams:

     T = 1992 May  25.693 TT          Peri. = 357.328
     e = 0.26985                      Node  = 243.268   2000.0
     q = 1.25410 AU                   Incl. =  22.690
       a =  1.71760 AU     n = 0.437844     P =   2.25 years

1992 TT     R. A. (2000) Decl.     Delta      r    Elong. Phase      V
May  18    14 31.48    -32 30.4    0.257    1.256  159.9   16.1     14.9
     23    14 38.27    -25 06.3    0.253    1.254  160.5   15.6     14.9
     28    14 45.30    -17 38.8    0.257    1.254  157.2   18.2     15.0
June  2    14 52.55    -10 37.3    0.267    1.255  151.6   22.6     15.2
      7    15 00.03    - 4 23.4    0.283    1.258  145.3   27.3     15.5
     12    15 07.71    + 0 52.6    0.304    1.262  139.4   31.6     15.8
     17    15 15.57    + 5 10.0    0.329    1.267  134.0   35.2     16.0
     22    15 23.56    + 8 33.8    0.356    1.273  129.4   38.1     16.3
     27    15 31.69    +11 10.7    0.387    1.280  125.4   40.4     16.6


COMET TANAKA-MACHHOLZ (1992d)
     Total visual magnitude estimates (cf. IAUC 5524):  May 17.93
UT, 8.3 (M. Lehky, Hradec Kralove, Czechoslovakia, 10x80 binoculars);
18.90, 7.5 (A. Diepvens, Balen, Belgium, 0.15-m refractor);
20.09, 7.7 (J. E. Bortle, Stormville, NY, 20x80 binoculars); 26.94,
8.6 (J. D. Shanklin, Cambridge, England, 0.2-m refractor); 29.30,
8.0 (Bortle).


1992 May 30                    (5531)            Daniel W. E. Green

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