MPEC 2002-D36 : COMET C/2002 C1 (IKEYA-ZHANG)
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M.P.E.C. 2002-D36 Issued 2002 Feb. 26, 00:22 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 02 11.41425 00 26 25.22 -12 20 45.9 8.9 T 340
CK02C010 C2002 02 11.41569 00 26 25.37 -12 20 43.0 340
CK02C010 C2002 02 11.41838 00 26 25.68 -12 20 37.3 340
CK02C010 C2002 02 12.40127 00 28 16.10 -11 46 01.6 9.0 T 300
CK02C010 C2002 02 12.40225 00 28 16.24 -11 45 59.7 300
CK02C010 C2002 02 12.40272 00 28 16.29 -11 45 59.1 300
CK02C010 C2002 02 12.40321 00 28 16.32 -11 45 57.7 300
CK02C010 C2002 02 12.40369 00 28 16.35 -11 45 57.0 300
CK02C010 C2002 02 12.40465 00 28 16.49 -11 45 54.7 300
CK02C010 C2002 02 12.40514 00 28 16.55 -11 45 54.0 300
CK02C010 C2002 02 12.40561 00 28 16.61 -11 45 52.6 300
CK02C010 C2002 02 13.40573 00 30 10.03 -11 09 59.0 342
CK02C010 C2002 02 13.41962 00 30 11.52 -11 09 28.2 342
CK02C010 C2002 02 14.39132 00 32 03.11 -10 33 52.6 341
CK02C010 C2002 02 14.39688 00 32 03.74 -10 33 40.3 8.2 T 341
CK02C010 C2002 02 14.40353 00 32 04.46 -10 33 25.3 342
CK02C010 C2002 02 14.40382 00 32 04.54 -10 33 24.9 341
CK02C010 C2002 02 14.40938 00 32 05.17 -10 33 12.4 341
CK02C010 C2002 02 14.41742 00 32 06.06 -10 32 53.7 342
CK02C010 C2002 02 15.41771 00 34 02.01 -09 55 28.8 8.3 T 341
CK02C010 C2002 02 15.42188 00 34 02.49 -09 55 19.5 341
CK02C010 2002 02 15.42188 00 34 02.45 -09 55 19.3 6.3 T 372
CK02C010 C2002 02 15.42853 00 34 03.27 -09 55 04.0 9.2 T 367
CK02C010 C2002 02 15.43061 00 34 03.51 -09 54 59.4 367
CK02C010 2002 02 15.43246 00 34 03.80 -09 54 55.2 372
CK02C010 C2002 02 15.43270 00 34 03.77 -09 54 55.0 367
CK02C010 C2002 02 15.72207 00 34 37.64 -09 43 56.8 118
CK02C010 C2002 02 15.72424 00 34 37.92 -09 43 52.0 118
CK02C010 C2002 02 15.72721 00 34 38.28 -09 43 45.5 118
CK02C010 C2002 02 15.76432 00 34 42.49 -09 42 21.3 8.6 T 620
CK02C010 C2002 02 15.76685 00 34 42.89 -09 42 14.5 199
CK02C010 C2002 02 15.76709 00 34 42.76 -09 42 14.5 199
CK02C010 C2002 02 15.76733 00 34 42.96 -09 42 12.6 199
CK02C010 C2002 02 15.76800 00 34 42.91 -09 42 12.5 199
CK02C010 C2002 02 15.76822 00 34 43.09 -09 42 10.9 199
CK02C010 C2002 02 15.76889 00 34 42.94 -09 42 10.7 199
CK02C010 C2002 02 15.76912 00 34 42.99 -09 42 09.5 199
CK02C010 C2002 02 15.76957 00 34 43.08 -09 42 09.2 199
CK02C010 C2002 02 15.77001 00 34 43.07 -09 42 08.7 199
CK02C010 C2002 02 15.77023 00 34 43.24 -09 42 07.2 199
CK02C010 C2002 02 15.77047 00 34 43.22 -09 42 06.7 199
CK02C010 C2002 02 15.77064 00 34 43.22 -09 42 06.8 11.2 N 620
CK02C010 C2002 02 15.77069 00 34 43.30 -09 42 05.9 199
CK02C010 C2002 02 15.77091 00 34 43.28 -09 42 06.0 199
CK02C010 C2002 02 15.77113 00 34 43.39 -09 42 05.2 199
CK02C010 C2002 02 15.77135 00 34 43.39 -09 42 03.9 199
CK02C010 C2002 02 15.77157 00 34 43.30 -09 42 04.7 199
CK02C010 C2002 02 15.77203 00 34 43.42 -09 42 03.0 9.7 T 199
CK02C010 C2002 02 15.78565 00 34 44.98 -09 41 32.3 620
CK02C010 C2002 02 16.40700 00 35 57.77 -09 17 41.7 9.1 T 367
CK02C010 C2002 02 16.40909 00 35 58.03 -09 17 37.0 367
CK02C010 C2002 02 16.41117 00 35 58.27 -09 17 32.1 367
CK02C010 rC2002 02 16.73162 00 36 36.06 -09 05 07.6 046
CK02C010 rC2002 02 16.73262 00 36 36.22 -09 05 05.4 046
CK02C010 rC2002 02 16.73330 00 36 36.25 -09 05 03.9 046
CK02C010 rC2002 02 16.73387 00 36 36.33 -09 05 02.6 046
CK02C010 rC2002 02 16.73495 00 36 36.42 -09 05 00.4 046
CK02C010 rC2002 02 16.73551 00 36 36.53 -09 04 59.3 046
CK02C010 C2002 02 18.41051 00 39 55.42 -07 58 39.1 8.2 T 300
CK02C010 C2002 02 18.41142 00 39 55.49 -07 58 37.0 300
CK02C010 C2002 02 18.41189 00 39 55.59 -07 58 36.3 300
CK02C010 C2002 02 18.41235 00 39 55.64 -07 58 34.3 300
CK02C010 C2002 02 18.41280 00 39 55.66 -07 58 34.0 300
CK02C010 C2002 02 18.41326 00 39 55.77 -07 58 33.0 300
CK02C010 C2002 02 18.41418 00 39 55.86 -07 58 30.1 300
CK02C010 C2002 02 18.41464 00 39 55.88 -07 58 29.1 300
CK02C010 C2002 02 18.41745 00 39 56.36 -07 58 22.9 888
CK02C010 C2002 02 18.41918 00 39 56.55 -07 58 18.4 888
CK02C010 C2002 02 18.42044 00 39 56.68 -07 58 15.6 888
CK02C010 C2002 02 18.42208 00 39 56.91 -07 58 11.2 888
CK02C010 C2002 02 18.76806 00 40 38.16 -07 44 10.5 201
CK02C010 C2002 02 18.77046 00 40 38.48 -07 44 05.7 201
CK02C010 C2002 02 18.77288 00 40 38.73 -07 43 58.9 201
CK02C010 C2002 02 19.76981 00 42 38.70 -07 03 00.2 10.5 N 620
CK02C010 C2002 02 19.78347 00 42 40.35 -07 02 26.2 8.1 T 620
CK02C010 C2002 02 19.78589 00 42 40.64 -07 02 20.2 620
CK02C010 C2002 02 19.78832 00 42 40.93 -07 02 14.1 620
CK02C010 C2002 02 20.07172 00 43 15.24 -06 50 23.6 9.7 T 448
CK02C010 C2002 02 20.07560 00 43 15.66 -06 50 13.9 9.6 T 448
CK02C010 C2002 02 20.07825 00 43 15.95 -06 50 07.4 9.6 T 448
CK02C010 C2002 02 20.41731 00 43 57.01 -06 35 53.4 340
CK02C010 C2002 02 20.42119 00 43 57.46 -06 35 43.8 340
CK02C010 C2002 02 20.42607 00 43 58.04 -06 35 31.8 340
CK02C010 C2002 02 20.42997 00 43 58.54 -06 35 22.0 340
CK02C010 C2002 02 20.44837 00 44 00.80 -06 34 35.0 8.5 T 300
CK02C010 C2002 02 20.44885 00 44 00.81 -06 34 32.9 300
CK02C010 C2002 02 20.45124 00 44 01.12 -06 34 26.8 300
CK02C010 C2002 02 20.45173 00 44 01.13 -06 34 26.3 300
CK02C010 C2002 02 20.45220 00 44 01.19 -06 34 25.4 300
CK02C010 2002 02 22.41215 00 48 00.08 -05 09 46.4 5.9 T 372
CK02C010 2002 02 22.41840 00 48 00.82 -05 09 30.5 372
CK02C010 C2002 02 22.42432 00 48 01.59 -05 09 15.9 300
CK02C010 2002 02 22.42465 00 48 01.49 -05 09 14.0 372
CK02C010 C2002 02 22.42476 00 48 01.65 -05 09 14.4 300
CK02C010 C2002 02 22.42519 00 48 01.70 -05 09 12.9 300
CK02C010 C2002 02 22.42697 00 48 01.93 -05 09 08.8 300
CK02C010 C2002 02 22.42741 00 48 02.00 -05 09 07.6 300
CK02C010 C2002 02 22.42785 00 48 02.03 -05 09 05.8 300
CK02C010 C2002 02 23.39307 00 50 00.36 -04 25 57.6 347
CK02C010 C2002 02 23.39490 00 50 00.63 -04 25 52.5 347
CK02C010 C2002 02 23.39711 00 50 00.88 -04 25 47.3 347
CK02C010 C2002 02 23.80974 00 50 51.50 -04 07 03.1 9.1 N 213
CK02C010 C2002 02 24.39587 00 52 03.63 -03 40 05.5 7.1 T 349
CK02C010 C2002 02 24.39705 00 52 03.77 -03 40 02.5 349
CK02C010 C2002 02 24.39792 00 52 03.89 -03 40 00.2 349
CK02C010 C2002 02 24.39844 00 52 03.97 -03 39 58.8 349
CK02C010 C2002 02 24.39896 00 52 04.04 -03 39 56.9 349
CK02C010 C2002 02 24.40796 00 52 05.18 -03 39 32.0 7.5 T 300
CK02C010 C2002 02 24.40840 00 52 05.21 -03 39 31.2 300
CK02C010 C2002 02 24.40918 00 52 05.27 -03 39 28.8 7.2 T 355
CK02C010 C2002 02 24.41013 00 52 05.39 -03 39 26.0 355
CK02C010 C2002 02 24.41059 00 52 05.50 -03 39 24.5 300
CK02C010 C2002 02 24.41091 00 52 05.50 -03 39 23.8 355
CK02C010 C2002 02 24.41396 00 52 05.91 -03 39 15.9 300
CK02C010 C2002 02 24.41508 00 52 06.02 -03 39 12.6 300
CK02C010 C2002 02 24.41619 00 52 06.18 -03 39 09.2 300
CK02C010 C2002 02 24.41806 00 52 06.32 -03 39 04.3 340
CK02C010 C2002 02 24.42303 00 52 06.98 -03 38 50.4 340
CK02C010 C2002 02 24.42656 00 52 07.36 -03 38 40.8 7.6 T 367
CK02C010 C2002 02 24.42678 00 52 07.38 -03 38 39.7 340
CK02C010 C2002 02 24.42760 00 52 07.47 -03 38 37.9 367
CK02C010 C2002 02 24.43048 00 52 07.85 -03 38 29.9 340
CK02C010 C2002 02 24.43073 00 52 07.85 -03 38 28.8 367
CK02C010 C2002 02 24.74983 00 52 47.30 -03 23 39.7 587
CK02C010 C2002 02 24.75105 00 52 47.41 -03 23 36.5 587
CK02C010 C2002 02 24.75313 00 52 47.57 -03 23 29.0 587
CK02C010 C2002 02 24.75608 00 52 48.00 -03 23 22.7 587
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, P. Jelinek. 0.57-m f/5.2 reflector
+ CCD.
118 Modra. Observers A. Galad, L. Kornos. 0.6-m f/5.5 reflector + CCD.
199 Buthiers. Observers J. L. Dauvergne, C. Demeautis, D. Matter,
J. C. Merlin. 0.59-m f/3.4 reflector + CCD.
201 Jonathan B. Postel Observatory. Observer V. Pozzoli. 0.30-m f/10
reflector + CCD.
213 Observatorio Montcabre. Observer R. Naves N. Measurer M. Campas. 0.25-m
f/3.3 Schmidt-Cassegrain + 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.
341 Akashina. Observer A. Akahori. 0.4-m f/6.0 reflector + CCD.
342 Shishikui. Observer H. Maeno. 0.15-m f/5.0 reflector + CCD.
347 Utsunomiya-Imaizumi. Observer M. Suzuki. 0.25-m f/6.3 Schmidt-Cassegrain
+ CCD.
349 Ageo. Observer K. Kadota. 0.18-m f/5.5 reflector + CCD.
355 Hadano. Observer A. Asami. 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.
448 Desert Moon Observatory. Observer B. Stevens. 0.30-m f/6.3
Schmidt-Cassegrain + CCD.
587 Sormano. Observers A. Testa, M. Cavagna. 0.5-m reflector + CCD.
620 Observatorio Astronomico de Mallorca. Observers J. Rodriguez, F. Serra.
0.30-m f/3.3 Schmidt-Cassegrain + CCD.
888 Gekko Observatory. Observer T. Kagawa. 0.50-m f/4.0 reflector + CCD.
Orbital elements:
C/2002 C1 (Ikeya-Zhang)
T 2002 Mar. 18.9784 TT MPC
q 0.507061 (2000.0) P Q
z +0.019502 Peri. 34.6666 -0.5491635 -0.6906790
Node 93.3718 +0.6195893 -0.7143048
e 0.990111 Incl. 28.1206 +0.5608284 +0.1128330
From 309 observations 2002 Feb. 1-24.
Ephemeris:
C/2002 C1 (Ikeya-Zhang)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2002 02 25 00 53.30 -03 11.9 1.233 0.719 35.7 53.4 6.5
2002 02 27 00 57.40 -01 35.6 1.199 0.689 35.0 55.7 6.3
2002 03 01 01 01.48 +00 05.5 1.164 0.659 34.4 58.2 6.0
2002 03 03 01 05.48 +01 51.7 1.128 0.631 33.9 61.1 5.8
2002 03 05 01 09.38 +03 43.4 1.091 0.605 33.4 64.3 5.5
2002 03 07 01 13.09 +05 40.8 1.053 0.581 32.9 67.8 5.3
2002 03 09 01 16.57 +07 44.1 1.015 0.560 32.4 71.7 5.0
2002 03 11 01 19.70 +09 53.4 0.975 0.542 31.9 75.9 4.8
2002 03 13 01 22.40 +12 08.5 0.936 0.527 31.5 80.3 4.6
2002 03 15 01 24.56 +14 29.3 0.896 0.516 31.1 85.0 4.4
2002 03 17 01 26.05 +16 55.3 0.856 0.509 30.8 89.8 4.2
2002 03 19 01 26.76 +19 25.9 0.817 0.507 30.5 94.6 4.1
2002 03 21 01 26.58 +22 00.6 0.779 0.509 30.3 99.1 4.0
2002 03 23 01 25.42 +24 38.4 0.742 0.516 30.3 103.2 4.0
2002 03 25 01 23.19 +27 18.6 0.707 0.527 30.4 106.9 4.0
2002 03 27 01 19.82 +30 00.4 0.674 0.542 30.7 109.8 4.0
2002 03 29 01 15.25 +32 43.1 0.643 0.560 31.4 112.0 4.0
2002 03 31 01 09.40 +35 26.1 0.613 0.582 32.3 113.4 4.1
2002 04 02 01 02.21 +38 08.9 0.586 0.606 33.6 114.0 4.2
2002 04 04 00 53.57 +40 50.8 0.561 0.632 35.3 113.8 4.3
2002 04 06 00 43.35 +43 31.3 0.538 0.660 37.4 112.9 4.3
2002 04 08 00 31.34 +46 09.6 0.517 0.689 39.8 111.5 4.4
2002 04 10 00 17.33 +48 44.5 0.497 0.720 42.6 109.4 4.6
2002 04 12 00 01.00 +51 14.5 0.480 0.751 45.8 107.0 4.7
2002 04 14 23 42.00 +53 37.3 0.464 0.783 49.2 104.1 4.8
2002 04 16 23 19.93 +55 49.9 0.450 0.816 53.0 100.9 4.9
2002 04 18 22 54.43 +57 48.2 0.438 0.849 57.0 97.4 5.0
2002 04 20 22 25.27 +59 26.8 0.428 0.882 61.2 93.6 5.1
2002 04 22 21 52.58 +60 39.9 0.419 0.916 65.7 89.7 5.2
2002 04 24 21 16.99 +61 21.3 0.413 0.950 70.3 85.5 5.4
2002 04 26 20 39.73 +61 26.2 0.408 0.984 75.1 81.3 5.5
2002 04 28 20 02.46 +60 52.3 0.405 1.018 80.0 77.0 5.6
2002 04 30 19 26.85 +59 40.8 0.404 1.051 84.9 72.6 5.7
2002 05 02 18 54.17 +57 55.6 0.406 1.085 89.8 68.2 5.9
2002 05 04 18 25.08 +55 43.0 0.410 1.119 94.7 63.9 6.1
2002 05 06 17 59.70 +53 09.7 0.416 1.153 99.5 59.7 6.2
Numerical integration backward of the perturbed equivalent of the above
unperturbed orbit solution yields a previous perihelion date in March 1659.
This suggests a likely identity with C/1661 C1, rather than with C/1532 R1
(cf. MPEC 2002-C111).
Brian G. Marsden (C) Copyright 2002 MPC M.P.E.C. 2002-D36
Read MPEC 2002-D35
Read MPEC 2002-D37
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