MPEC 2004-S18 : COMET P/2004 NL21 (LINEAR)
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M.P.E.C. 2004-S18 Issued 2004 Sept. 18, 18:56 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.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET P/2004 NL21 (LINEAR)
Observations:
PK04N21L C1996 09 08.43624 21 25 29.25 -18 51 37.2 17.0 N ES018566
PK04N21L C1996 09 08.44856 21 25 28.77 -18 51 29.5 16.5 N ES018566
PK04N21L C1996 09 08.45699 21 25 28.38 -18 51 24.1 16.0 N ES018566
PK04N21L C1996 09 15.31824 21 21 22.04 -17 38 55.1 16.4 N ES018566
PK04N21L C1996 09 15.33041 21 21 21.63 -17 38 47.1 16.4 N ES018566
PK04N21L C1996 09 15.33884 21 21 21.37 -17 38 41.5 16.4 N ES018566
Observer details:
566 Haleakala-NEAT/GEODSS. Observers E. F. Helin, S. Pravdo, K. J. Lawrence,
D. L. Rabinowitz. Measurer M. Meyer. 1.0-m f/2.2 GEODSS telescope + CCD.
Orbital elements:
P/2004 NL21 (LINEAR)
Epoch 1996 Nov. 13.0 TT = JDT 2450400.5
T 1996 Nov. 9.64927 TT MPC
q 2.0680920 (2000.0) P Q
n 0.12474955 Peri. 17.92927 +0.99082844 +0.06987549
a 3.9668282 Node 337.10221 -0.12762107 +0.76518997
e 0.4786535 Incl. 17.29250 +0.04440575 +0.64000135
P 7.90
Epoch 2004 Oct. 2.0 TT = JDT 2453280.5
T 2004 Oct. 13.02517 TT MPC
q 2.0828142 (2000.0) P Q
n 0.12404775 Peri. 17.99442 +0.99085995 +0.06949038
a 3.9817757 Node 337.06189 -0.12727000 +0.76566173
e 0.4769132 Incl. 17.25700 +0.04470912 +0.63947885
P 7.95
From 81 observations 1996 Sept. 8-2004 Sept. 18, mean residual 0".65.
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-S18
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