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IAUC 5843: 1993 PB; PERSEID METEORS 1993

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                                                  Circular No. 5843
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)


1993 PB
     J. V. Scotti, Lunar and Planetary Laboratory, reports his
discovery of a fast-moving asteroidal object with the Spacewatch
telescope, Kitt Peak:

     1993 UT             R.A. (2000) Decl.         V
     Aug. 13.19268   21 13 24.40   -10 09 10.9   18.0
          13.22507   21 13 18.68   -10 08 58.4   17.9
          13.25864   21 13 12.78   -10 08 44.7   18.0
          14.24796   21 10 22.56   -10 02 12.0   17.8
          14.25743   21 10 21.00   -10 02 07.8
          14.26667   21 10 19.32   -10 02 04.2   18.0
          15.33552   21 07 18.46   - 9 55 04.5   17.9
          15.34303   21 07 17.18   - 9 55 01.5   17.9
          15.35614   21 07 14.92   - 9 54 56.5   17.9

     Very preliminary orbital elements from the above observations:

     T = 1993 Feb. 22.394 TT          Peri. = 211.738
     e = 0.61189                      Node  = 316.178   2000.0
     q = 0.55689 AU                   Incl. =  42.664
       a =  1.43486 AU     n = 0.573442     P =   1.72 years

1993 TT     R. A. (2000) Decl.     Delta      r    Elong. Phase      V
Aug. 11    21 19.85    -10 23.8    0.936    1.947  175.0    2.6     17.6
     16    21 05.47    - 9 50.7    0.968    1.973  170.2    5.0     17.8
     21    20 52.39    - 9 19.4    1.009    1.998  162.9    8.5     18.1
     26    20 40.87    - 8 50.4    1.057    2.022  155.7   11.9     18.4
     31    20 30.99    - 8 23.8    1.113    2.044  148.7   14.9     18.6
Sept. 5    20 22.78    - 7 59.7    1.175    2.066  142.1   17.4     18.8
     10    20 16.17    - 7 37.8    1.243    2.087  135.8   19.6     19.1


PERSEID METEORS 1993
     Further to IAUC 5841, M. Gyssens, International Meteor Organization,
informs us that the increased Perseid activity clearly extended beyond
Aug. 12.5 UT and that after that time there could be confusion with
the expected peak of the 'normal' Perseid shower.  A report relayed from
E. Mashal, Tel-Aviv University, indicates that at the Wise Observatory
Perseids were seen under perfect conditions at an observed hourly rate
of 720 for about 30 min around Aug. 12.04 UT.


1993 August 16                 (5843)              Brian G. Marsden

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