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MPEC 1999-P18 : COMET C/1999 H1 (LEE)

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M.P.E.C. 1999-P18                                Issued 1999 Aug. 6, 20:12 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 of the International Astronomical Union by the
          Minor Planet Center, Smithsonian Astrophysical Observatory,
                          Cambridge, MA 02138, U.S.A.

             BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                             COMET C/1999 H1 (LEE)

Observations:
    CJ99H010  C1999 07 27.77921 07 35 07.10 +35 22 53.5                      349
    CJ99H010  C1999 07 27.78025 07 35 07.04 +35 22 54.3                      349
    CJ99H010  C1999 07 27.78074 07 35 07.00 +35 22 54.8                      349
    CJ99H010  C1999 07 29.77200 07 32 20.92 +36 06 30.0                      349
    CJ99H010  C1999 07 29.77479 07 32 20.76 +36 06 33.9                      349
    CJ99H010  C1999 07 29.78010 07 32 20.28 +36 06 40.9                      349
    CJ99H010  C1999 08 06.08185 07 21 38.60 +38 47 05.2                      046
    CJ99H010  C1999 08 06.08250 07 21 38.53 +38 47 06.3                      046
    CJ99H010  C1999 08 06.08317 07 21 38.48 +38 47 06.9                      046
    CJ99H010  C1999 08 06.08412 07 21 38.42 +38 47 07.9                      046

Observer details:
046 Klet.  Observers M. Tichy, Z. Moravec.  Measurer M. Tichy.
    0.57-m f/5.2 reflector + CCD.
349 Ageo.  Observer K. Kadota.  Measurers S. Yoshida, K. Kadota.
    0.18-m f/5.5 reflector + CCD.

Orbital elements:
    C/1999 H1 (Lee)
Epoch 1999 July 1.0 TT = JDT 2451360.5
T 1999 July 11.1721 TT                                  Marsden
q   0.708104             (2000.0)            P               Q
z  +0.000350       Peri.   40.7000      -0.5563267      +0.8169401
 +/-0.000006       Node   162.6490      +0.5665159      +0.2390426
e   0.999752       Incl.  149.3532      +0.6079148      +0.5248501
From 344 observations 1999 Apr. 16-Aug. 6, mean residual 0".7.

Ephemeris:
    C/1999 H1 (Lee)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
1999 08 05    07 23.29   +38 23.1    1.585    0.866    29.7    35.5   7.4
1999 08 10    07 15.36   +40 15.9    1.524    0.924    36.1    40.3   7.6
1999 08 15    07 06.43   +42 14.8    1.453    0.987    42.7    44.1   7.8
1999 08 20    06 55.92   +44 23.0    1.375    1.054    49.6    47.0   7.9
1999 08 25    06 42.99   +46 43.2    1.291    1.123    56.8    48.9   8.1
1999 08 30    06 26.37   +49 17.4    1.204    1.193    64.5    49.8   8.2
1999 09 04    06 04.12   +52 04.8    1.117    1.265    72.8    49.6   8.3
1999 09 09    05 33.32   +54 58.3    1.033    1.337    81.8    48.2   8.3
1999 09 14    04 50.08   +57 36.3    0.957    1.409    91.7    45.5   8.4
1999 09 19    03 51.36   +59 13.3    0.893    1.481   102.4    41.5   8.5
1999 09 24    02 40.34   +58 42.7    0.848    1.553   113.8    36.2   8.6
1999 09 29    01 29.79   +55 19.3    0.828    1.625   125.0    30.3   8.7
1999 10 04    00 32.24   +49 27.5    0.837    1.697   134.6    24.8   8.9
1999 10 09    23 50.62   +42 22.4    0.877    1.768   140.8    20.9   9.2
1999 10 14    23 21.83   +35 16.0    0.944    1.838   142.4    19.3   9.5
1999 10 19    23 02.06   +28 50.9    1.036    1.908   139.8    19.7   9.9
1999 10 24    22 48.43   +23 22.8    1.147    1.978   134.8    20.9  10.3
1999 10 29    22 39.03   +18 51.4    1.272    2.047   128.9    22.2  10.6
1999 11 03    22 32.62   +15 09.7    1.408    2.115   122.7    23.3  11.0
1999 11 08    22 28.38   +12 09.4    1.552    2.183   116.6    24.0  11.3
1999 11 13    22 25.76   +09 42.8    1.702    2.251   110.7    24.3  11.7
1999 11 18    22 24.39   +07 43.5    1.856    2.317   105.0    24.3  12.0
1999 11 23    22 23.96   +06 06.0    2.012    2.384    99.5    24.1  12.3
1999 11 28    22 24.30   +04 46.3    2.170    2.449    94.2    23.7  12.6
1999 12 03    22 25.23   +03 41.2    2.329    2.515    89.1    23.1  12.8
1999 12 08    22 26.66   +02 48.0    2.486    2.579    84.1    22.3  13.1
1999 12 13    22 28.49   +02 04.9    2.643    2.644    79.3    21.5  13.3
1999 12 18    22 30.65   +01 30.1    2.798    2.707    74.5    20.5  13.6
1999 12 23    22 33.07   +01 02.3    2.950    2.771    69.9    19.5  13.8
1999 12 28    22 35.71   +00 40.5    3.100    2.833    65.3    18.4  14.0
2000 01 02    22 38.54   +00 23.8    3.245    2.896    60.8    17.2  14.2
2000 01 07    22 41.51   +00 11.4    3.387    2.958    56.3    16.1  14.4
2000 01 12    22 44.61   +00 02.8    3.525    3.019    51.9    14.9  14.5
2000 01 17    22 47.79   -00 02.7    3.657    3.080    47.6    13.6  14.7
2000 01 22    22 51.04   -00 05.3    3.785    3.141    43.2    12.4  14.9
2000 01 27    22 54.35   -00 05.6    3.906    3.201    38.9    11.1  15.0
2000 02 01    22 57.69   -00 03.8    4.022    3.261    34.7     9.9  15.2
2000 02 06    23 01.04   -00 00.3    4.132    3.320    30.4     8.7  15.3

Brian G. Marsden             (C) Copyright 1999 MPC           M.P.E.C. 1999-P18

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