MPEC 2002-N15 : COMET C/2002 L9 (NEAT)

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M.P.E.C. 2002-N15                                Issued 2002 July 2, 21:33 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.

             Prepared using the Tamkin Foundation Computer Network

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

                            COMET C/2002 L9 (NEAT)

Observations:
    CK02L090  C2002 06 06.36976 20 04 50.86 -27 12 12.1          18.3 N      704
    CK02L090  C2002 06 06.38311 20 04 50.62 -27 12 16.2          18.7 N      704
    CK02L090  C2002 06 06.41088 20 04 50.22 -27 12 24.4          18.9 N      704
    CK02L090  C2002 06 06.42446 20 04 49.98 -27 12 29.2          18.9 N      704
    CK02L090  C2002 06 13.40771 20 02 53.28 -27 46 20.0          17.6 T      644
    CK02L090  C2002 06 13.41701 20 02 53.12 -27 46 23.2          17.6 T      644
    CK02L090  C2002 06 13.41933 20 02 53.06 -27 46 23.7          17.8 T      644
    CK02L090  C2002 06 13.42733 20 02 52.91 -27 46 26.7          17.8 T      644
    CK02L090  C2002 06 13.42970 20 02 52.87 -27 46 26.6          17.7 T      644
    CK02L090  C2002 06 13.43779 20 02 52.71 -27 46 29.9          17.7 T      644
    CK02L090  C2002 06 15.43075 20 02 15.28 -27 56 20.0          17.7 T      644
    CK02L090  C2002 06 15.44185 20 02 15.06 -27 56 23.3          17.6 T      644
    CK02L090  C2002 06 15.45323 20 02 14.86 -27 56 26.6          17.5 T      644
    CK02L090  C2002 06 17.38125 20 01 37.16 -28 05 59.9          18.6 N      704
    CK02L090  C2002 06 17.39490 20 01 36.80 -28 06 04.7          18.6 N      704
    CK02L090  C2002 06 17.40846 20 01 36.57 -28 06 08.8          18.8 N      704
    CK02L090  C2002 06 17.42202 20 01 36.18 -28 06 14.2          18.8 N      704
    CK02L090  C2002 06 18.42676 20 01 15.92 -28 11 12.6          17.6 T      644
    CK02L090  C2002 06 18.43727 20 01 15.70 -28 11 15.9          17.5 T      644
    CK02L090  C2002 06 18.44756 20 01 15.48 -28 11 18.9          17.6 T      644
    CK02L090  C2002 06 28.59937 19 57 28.62 -29 02 17.4          18.2 N      428
    CK02L090  C2002 06 28.60518 19 57 28.54 -29 02 18.6          18.3 N      428
    CK02L090  C2002 06 28.61707 19 57 28.22 -29 02 22.9          18.1 N      428
    CK02L090  C2002 06 28.62288 19 57 28.07 -29 02 24.8          18.2 N      428
    CK02L090  C2002 06 29.40953 19 57 09.00 -29 06 22.4          17.5 T      644
    CK02L090  C2002 06 29.44012 19 57 08.25 -29 06 31.8          17.5 T      644
    CK02L090  C2002 06 29.46827 19 57 07.54 -29 06 40.4          17.7 T      644
    CK02L090  C2002 07 01.61788 19 56 14.57 -29 17 27.7          17.1 N      428
    CK02L090  C2002 07 01.62375 19 56 14.40 -29 17 29.3          17.2 N      428
    CK02L090  C2002 07 01.62955 19 56 14.22 -29 17 31.0          17.0 N      428
    CK02L090  C2002 07 02.29534 19 55 57.56 -29 20 52.6          17.7 T      644
    CK02L090  C2002 07 02.32220 19 55 56.87 -29 21 00.5          17.6 T      644
    CK02L090  C2002 07 02.34784 19 55 56.23 -29 21 08.7          17.3 N      673
    CK02L090  C2002 07 02.35643 19 55 55.99 -29 21 10.9          17.8 T      644
    CK02L090  C2002 07 02.36506 19 55 55.78 -29 21 13.6          17.3 N      673
    CK02L090  C2002 07 02.38647 19 55 55.21 -29 21 20.3          17.4 N      673
    CK02L090  C2002 07 02.39573 19 55 54.98 -29 21 22.6          17.2 N      673
    CK02L090  C2002 07 02.40060 19 55 54.86 -29 21 24.5          17.3 N      673
    CK02L090  C2002 07 02.41912 19 55 54.38 -29 21 30.1          17.3 N      673
    CK02L090  C2002 07 02.42366 19 55 54.27 -29 21 31.3          17.3 N      673

Observer details:
428 Reedy Creek.  Observer J. Broughton.  0.25-m f/6.3 Schmidt-Cassegrain
    + CCD.
644 Palomar Mountain/NEAT.  Observers E. F. Helin, S. Pravdo, K. Lawrence,
    K. Kuluhiwa, M. Hicks, R. Thicksten.  1.2-m Schmidt + CCD.
673 Table Mountain Observatory, Wrightwood.  Observers P. Weissman, S. Lowry,
    M. Williams, C. Dwyer.  0.6-m reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, S. Adams, J. Piscitelli.  Measurers
    J. Stuart, R. Sayer, J. B. Evans, H. Viggh.  1.0-m f/2.15 reflector + CCD.

Orbital elements:
    C/2002 L9 (NEAT)
T 2004 Apr. 10.967 TT                                   MPC
q   6.98834              (2000.0)            P               Q
                   Peri.  232.066       +0.488488       -0.061885
                   Node   110.433       -0.143529       +0.978196
e   1.0            Incl.   68.251       -0.860685       -0.198248
From 40 observations 2002 June 6-July 2.

Ephemeris:
    C/2002 L9 (NEAT)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2002 06 25    19 58.89   -28 44.2    7.219    8.158   155.9     2.9        17.6
2002 07 05    19 54.81   -29 34.4    7.139    8.126   165.1     1.8        17.5
2002 07 15    19 50.33   -30 23.6    7.089    8.094   170.7     1.2        17.5
2002 07 25    19 45.67   -31 10.6    7.071    8.063   166.6     1.7        17.5
2002 08 04    19 41.08   -31 54.3    7.083    8.032   157.7     2.7        17.6
2002 08 14    19 36.78   -32 34.1    7.125    8.001   147.9     3.9        17.6
2002 08 24    19 33.00   -33 09.3    7.193    7.970   137.8     4.9        17.7
2002 09 03    19 29.94   -33 40.1    7.283    7.940   127.7     5.8        17.8
2002 09 13    19 27.74   -34 06.5    7.392    7.911   117.7     6.5        17.8
2002 09 23    19 26.52   -34 28.8    7.515    7.881   107.9     7.0        17.9
2002 10 03    19 26.31   -34 47.7    7.646    7.852    98.2     7.2        17.9
2002 10 13    19 27.13   -35 03.6    7.782    7.824    88.7     7.3        18.0
2002 10 23    19 28.98   -35 17.0    7.916    7.795    79.4     7.2        18.0
2002 11 02    19 31.78   -35 28.4    8.046    7.768    70.3     6.9        18.0
2002 11 12    19 35.49   -35 38.2    8.166    7.740    61.3     6.4        18.0
2002 11 22    19 40.00   -35 46.9    8.273    7.713    52.6     5.8        18.0
2002 12 02    19 45.24   -35 54.8    8.363    7.686    44.1     5.1        18.0
2002 12 12    19 51.10   -36 02.4    8.435    7.660    36.0     4.3        17.9

Brian G. Marsden             (C) Copyright 2002 MPC           M.P.E.C. 2002-N15

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