MPEC 2002-H05 : COMET C/2002 C1 (IKEYA-ZHANG)
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M.P.E.C. 2002-H05 Issued 2002 Apr. 16, 17:43 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 C1 (IKEYA-ZHANG)
Observations:
CK02C010 C2002 04 04.42752 00 51 32.05 +41 25 06.7 300
CK02C010 C2002 04 04.42778 00 51 31.98 +41 25 08.0 300
CK02C010 C2002 04 04.42931 00 51 31.54 +41 25 15.2 300
CK02C010 C2002 04 04.43110 00 51 31.03 +41 25 23.9 300
CK02C010 C2002 04 04.43237 00 51 30.65 +41 25 29.8 300
CK02C010 C2002 04 04.43398 00 51 30.13 +41 25 37.4 367
CK02C010 C2002 04 04.43582 00 51 29.64 +41 25 46.3 367
CK02C010 C2002 04 04.43767 00 51 29.10 +41 25 55.5 367
CK02C010 C2002 04 04.77638 00 49 48.80 +41 53 09.8 4.2 T 235
CK02C010 C2002 04 04.79981 00 49 43.61 +41 55 02.5 4.1 T 349
CK02C010 C2002 04 04.80222 00 49 42.89 +41 55 13.6 349
CK02C010 C2002 04 04.80833 00 49 40.99 +41 55 43.5 349
CK02C010 C2002 04 04.81060 00 49 40.32 +41 55 54.5 349
CK02C010 C2002 04 05.80830 00 44 26.86 +43 15 51.2 349
CK02C010 C2002 04 05.80891 00 44 26.66 +43 15 54.3 4.2 T 349
CK02C010 C2002 04 05.80921 00 44 26.53 +43 15 56.0 349
CK02C010 C2002 04 05.81074 00 44 26.05 +43 16 03.2 349
CK02C010 C2002 04 12.41188 23 57 23.68 +51 44 34.2 9.8 N 452
CK02C010 C2002 04 12.41435 23 57 22.27 +51 44 46.0 9.8 N 452
CK02C010 C2002 04 12.41704 23 57 20.85 +51 44 57.6 10.1 N 452
CK02C010 C2002 04 12.72005 23 54 33.40 +52 06 46.4 349
CK02C010 C2002 04 12.73690 23 54 24.10 +52 08 00.0 349
CK02C010 C2002 04 12.73734 23 54 23.82 +52 08 02.0 349
CK02C010 C2002 04 12.73867 23 54 23.11 +52 08 08.3 4.3 T 349
CK02C010 C2002 04 12.78015 23 54 00.02 +52 11 09.6 340
CK02C010 C2002 04 12.78285 23 53 58.48 +52 11 21.8 340
CK02C010 C2002 04 12.78869 23 53 55.26 +52 11 46.8 340
CK02C010 C2002 04 12.79731 23 53 50.45 +52 12 24.9 4.2 T 340
CK02C010 C2002 04 12.81650 23 53 39.49 +52 13 46.2 6.2 T 352
CK02C010 C2002 04 12.82214 23 53 36.63 +52 14 13.6 352
CK02C010 C2002 04 13.77326 23 44 22.49 +53 21 33.2 367
CK02C010 C2002 04 13.77454 23 44 21.73 +53 21 38.9 367
CK02C010 C2002 04 13.77558 23 44 21.14 +53 21 42.8 367
CK02C010 C2002 04 13.77953 23 44 18.71 +53 22 01.4 349
CK02C010 C2002 04 13.78046 23 44 18.17 +53 22 05.3 349
CK02C010 C2002 04 13.78093 23 44 17.89 +53 22 07.2 349
CK02C010 C2002 04 13.78144 23 44 17.55 +53 22 09.5 349
CK02C010 C2002 04 13.78192 23 44 17.27 +53 22 11.4 4.4 T 349
CK02C010 2002 04 13.78550 23 44 15.08 +53 22 27.0 3.5 T 372
CK02C010 2002 04 13.81603 23 43 56.60 +53 24 37.1 3.5 T 372
Observer details:
235 CAST Observatory, Talmassons. Observers R. Ligustri, P. Beltrame,
V. Savani. 0.35-m f/3.5 reflector + CCD.
300 Bisei Spaceguard Center--BATTeRS. Observers A. Asami, D. J. Asher,
T. Fuse, N. Hashimoto, A. I. Ibrahim, S. Isobe, K. Nishiyama, Y. Oshima,
J. Terazono, H. Umehara, T. Urata, M. Yoshikawa. 0.25-m f/5.0 reflector
+ CCD.
340 Toyonaka. Observer Y. Ezaki. 0.3-m f/6.0 reflector + CCD.
349 Ageo. Observer K. Kadota. 0.18-m f/5.5 reflector + CCD.
352 Konan. Observer M. Hotta. 0.28-m f/5.0 reflector + CCD.
367 Yatsuka. Observer H. Abe. 0.26-m f/6.0 reflector + CCD.
372 Geisei. Observer T. Seki. 0.60-m f/3.5 reflector.
452 Big Cypress Observatory. Observer L. Nemec. 0.25-m Schmidt-Cassegrain
+ CCD.
Orbital elements:
C/2002 C1 (Ikeya-Zhang)
Epoch 2002 Mar. 27.0 TT = JDT 2452360.5
T 2002 Mar. 18.97927 TT MPC
q 0.5070583 (2000.0) P Q
z +0.0198192 Peri. 34.66475 -0.54911798 -0.69070395
+/-0.0000160 Node 93.37048 +0.61962066 -0.71427484
e 0.9899505 Incl. 28.12159 +0.56083837 +0.11286940
From 645 observations 2002 Feb. 1-Apr. 13, mean residual 0".64. Non-
gravitational parameters A1 = +3.04 +/- 0.13, A2 = +1.0491 +/- 0.1035.
The above orbital elements yield the year of the previous perihelion
passage as T = 1667.9 +/- 0.4 (gravitational 1 sigma).
Brian G. Marsden (C) Copyright 2002 MPC M.P.E.C. 2002-H05
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