MPEC 2002-F21 : COMET C/2002 C1 (IKEYA-ZHANG)
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.
Read MPEC 2002-F20
Read MPEC 2002-F22
M.P.E.C. 2002-F21 Issued 2002 Mar. 18, 21:23 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 03 03.41039 01 06 17.23 +02 14 07.7 342
CK02C010 C2002 03 03.43368 01 06 19.89 +02 15 25.2 342
CK02C010 C2002 03 03.76838 01 06 59.40 +02 33 55.3 201
CK02C010 C2002 03 03.77763 01 07 00.53 +02 34 25.8 201
CK02C010 C2002 03 03.79075 01 07 02.04 +02 35 09.3 201
CK02C010 C2002 03 04.41128 01 08 14.37 +03 09 54.1 342
CK02C010 C2002 03 04.41884 01 08 15.33 +03 10 21.4 342
CK02C010 C2002 03 04.76919 01 08 55.84 +03 30 13.0 201
CK02C010 C2002 03 04.77744 01 08 56.84 +03 30 41.2 201
CK02C010 C2002 03 04.78578 01 08 57.67 +03 31 09.6 201
CK02C010 C2002 03 06.40990 01 12 00.86 +05 05 32.7 342
CK02C010 C2002 03 06.41734 01 12 01.73 +05 06 00.5 355
CK02C010 C2002 03 06.43275 01 12 03.36 +05 06 56.3 342
CK02C010 C2002 03 07.41483 01 13 49.94 +06 05 52.9 300
CK02C010 C2002 03 07.41571 01 13 50.06 +06 05 56.3 300
CK02C010 C2002 03 07.41613 01 13 50.06 +06 05 57.9 300
CK02C010 C2002 03 07.41744 01 13 50.24 +06 06 03.3 300
CK02C010 C2002 03 07.41788 01 13 50.26 +06 06 04.0 300
CK02C010 C2002 03 07.43735 01 13 52.34 +06 07 14.9 355
CK02C010 C2002 03 07.44144 01 13 52.72 +06 07 29.5 5.5 T 355
CK02C010 C2002 03 07.44312 01 13 52.89 +06 07 36.7 355
CK02C010 C2002 03 08.39960 01 15 32.96 +07 06 27.3 355
CK02C010 C2002 03 08.40179 01 15 33.17 +07 06 35.1 355
CK02C010 C2002 03 08.40428 01 15 33.42 +07 06 44.7 5.6 T 355
CK02C010 2002 03 08.42451 01 15 35.48 +07 08 01.1 372
CK02C010 C2002 03 08.77087 01 16 10.73 +07 29 38.9 201
CK02C010 C2002 03 08.77832 01 16 11.54 +07 30 07.0 201
CK02C010 C2002 03 08.78653 01 16 12.27 +07 30 38.2 8.8 N 941
CK02C010 C2002 03 08.79028 01 16 12.63 +07 30 52.5 8.8 N 941
CK02C010 C2002 03 08.79109 01 16 12.88 +07 30 55.1 201
CK02C010 C2002 03 09.39801 01 17 12.93 +08 09 20.3 6.0 T 379
CK02C010 C2002 03 09.39896 01 17 13.05 +08 09 23.8 5.2 T 379
CK02C010 C2002 03 09.40936 01 17 14.06 +08 10 03.5 4.9 T 379
CK02C010 C2002 03 09.41205 01 17 14.17 +08 10 12.9 5.0 T 349
CK02C010 C2002 03 09.41258 01 17 14.23 +08 10 15.1 349
CK02C010 C2002 03 09.41311 01 17 14.30 +08 10 17.3 349
CK02C010 C2002 03 09.41363 01 17 14.34 +08 10 19.5 349
CK02C010 C2002 03 09.41588 01 17 14.53 +08 10 29.7 360
CK02C010 C2002 03 09.41729 01 17 14.66 +08 10 34.8 360
CK02C010 C2002 03 09.41813 01 17 14.76 +08 10 37.8 360
CK02C010 C2002 03 09.42110 01 17 15.08 +08 10 48.4 4.9 T 355
CK02C010 C2002 03 09.42807 01 17 15.78 +08 11 14.8 355
CK02C010 C2002 03 09.42936 01 17 15.90 +08 11 20.1 355
CK02C010 C2002 03 09.43196 01 17 16.11 +08 11 29.9 340
CK02C010 C2002 03 09.43426 01 17 16.34 +08 11 38.0 340
CK02C010 C2002 03 09.43818 01 17 16.74 +08 11 52.7 300
CK02C010 C2002 03 09.43862 01 17 16.72 +08 11 54.3 340
CK02C010 C2002 03 09.43929 01 17 16.86 +08 11 57.4 300
CK02C010 C2002 03 09.44041 01 17 16.95 +08 12 02.6 300
CK02C010 C2002 03 09.44072 01 17 16.92 +08 12 02.8 340
CK02C010 C2002 03 09.44152 01 17 17.06 +08 12 07.2 300
CK02C010 C2002 03 09.44263 01 17 17.19 +08 12 11.4 300
CK02C010 C2002 03 09.44428 01 17 17.26 +08 12 16.7 340
CK02C010 C2002 03 09.44958 01 17 17.86 +08 12 36.6 367
CK02C010 C2002 03 09.45051 01 17 17.93 +08 12 40.0 367
CK02C010 C2002 03 09.45144 01 17 18.03 +08 12 43.8 367
CK02C010 C2002 03 09.76621 01 17 48.34 +08 32 51.8 5.2 T 235
CK02C010 C2002 03 09.77466 01 17 49.22 +08 33 26.1 540
CK02C010 C2002 03 09.77597 01 17 49.35 +08 33 29.1 540
CK02C010 C2002 03 09.77920 01 17 49.71 +08 33 42.0 540
CK02C010 C2002 03 09.78029 01 17 49.82 +08 33 46.3 540
CK02C010 C2002 03 10.74548 01 19 19.27 +09 36 30.2 557
CK02C010 C2002 03 10.74720 01 19 19.42 +09 36 37.4 557
CK02C010 C2002 03 10.74892 01 19 19.58 +09 36 44.1 557
CK02C010 C2002 03 10.75064 01 19 19.74 +09 36 50.9 557
CK02C010 C2002 03 10.75236 01 19 19.89 +09 36 57.8 557
CK02C010 C2002 03 10.75407 01 19 20.03 +09 37 04.2 557
CK02C010 C2002 03 10.75580 01 19 20.19 +09 37 11.2 557
CK02C010 C2002 03 10.75752 01 19 20.33 +09 37 17.8 557
CK02C010 C2002 03 10.76961 01 19 21.53 +09 38 08.2 5.3 T 235
CK02C010 C2002 03 11.40795 01 20 17.25 +10 20 24.0 347
CK02C010 C2002 03 11.40939 01 20 17.35 +10 20 29.6 347
CK02C010 C2002 03 11.41089 01 20 17.46 +10 20 35.9 347
CK02C010 C2002 03 11.41495 01 20 17.81 +10 20 52.6 300
CK02C010 C2002 03 11.41542 01 20 17.86 +10 20 54.9 300
CK02C010 C2002 03 11.41633 01 20 17.92 +10 20 58.2 300
CK02C010 C2002 03 11.41916 01 20 18.16 +10 21 09.5 300
CK02C010 C2002 03 11.41961 01 20 18.22 +10 21 11.2 300
CK02C010 2002 03 11.44924 01 20 20.76 +10 23 11.1 4.6 T 372
CK02C010 C2002 03 11.76441 01 20 47.32 +10 44 18.2 5.1 T 235
CK02C010 C2002 03 12.76318 01 22 06.42 +11 52 07.4 4.6 T 235
CK02C010 C2002 03 13.43471 01 22 55.03 +12 38 32.7 300
CK02C010 C2002 03 13.43562 01 22 55.13 +12 38 36.7 300
CK02C010 C2002 03 13.43655 01 22 55.15 +12 38 40.7 300
CK02C010 C2002 03 13.43793 01 22 55.28 +12 38 46.4 300
CK02C010 C2002 03 13.75885 01 23 17.30 +13 01 10.2 4.2 T 235
CK02C010 C2002 03 16.76708 01 25 54.63 +16 37 55.4 540
CK02C010 C2002 03 16.76808 01 25 54.74 +16 37 57.2 540
CK02C010 C2002 03 16.76858 01 25 54.61 +16 38 03.1 3.9 T 235
CK02C010 C2002 03 16.76907 01 25 54.76 +16 38 04.0 540
Observer details:
201 Jonathan B. Postel Observatory. Observer V. Pozzoli. 0.30-m f/10
reflector + CCD.
235 CAST Observatory, Talmassons. Observer R. Ligustri. 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.
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.
360 Kuma Kogen. Observer A. Nakamura. 0.60-m f/6.0 Ritchey-Chretien + 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.
379 Hamamatsu-Yuto. Observer S. Wakuda. 0.25-m f/5.0 Schmidt-Cassegrain
+ CCD.
540 Linz. Observer E. Meyer. 0.6-m f/3.0 reflector + CCD.
557 Ondrejov. Observers P. Pravec, P. Kusnirak. 0.65-m f/3.6 reflector + CCD.
941 Observatorio Pla D'Arguines. Observer R. Ferrando. 0.26-m f/10
Schmidt-Cassegrain + CCD.
Orbital elements:
C/2002 C1 (Ikeya-Zhang)
Epoch 2002 Mar. 27.0 TT = JDT 2452360.5
T 2002 Mar. 18.98004 TT MPC
q 0.5070628 (2000.0) P Q
z +0.0195563 Peri. 34.66995 -0.54915816 -0.69067539
+/-0.0000173 Node 93.36873 +0.61957254 -0.71430987
e 0.9900837 Incl. 28.12121 +0.56085219 +0.11282251
Residuals in seconds of arc
020201 620 1.4+ 0.4+ 020209 379 0.1+ 1.3- 020223 347 0.5+ 0.5+
020201 620 1.6+ 0.8+ 020209 379 0.2+ 0.2- 020223 347 0.2+ 0.3-
020201 620 (1.7+ 2.4+) 020209 379 0.2+ 0.5- 020223 213 0.9- 0.3-
020201 620 (1.6+ 2.1+) 020209 347 0.2- 0.3- 020224 349 0.3- 0.4+
020202 739 0.2- 0.5- 020209 347 0.2- 0.0 020224 349 0.4- 0.1+
020202 739 0.7+ 0.7+ 020209 349 0.1- 0.6- 020224 349 0.2- 0.0
020202 739 1.1- 0.0 020209 349 0.2- 0.5- 020224 349 0.1+ 0.1-
020202 734 1.4+ 0.5- 020209 349 0.3- 0.4- 020224 349 0.2+ 0.4+
020202 734 (2.7+ 0.2+) 020209 349 0.3- 0.6- 020224 300 0.6+ 0.2+
020202 734 (2.2+ 0.1+) 020209 340 0.3- 0.5- 020224 300 0.3+ 0.2-
020202 327 0.5+ 0.4+ 020209 340 0.3- 0.4- 020224 355 0.1- 0.0
020202 327 0.5+ 0.1+ 020209 340 0.6- 0.5- 020224 355 0.0 0.2+
020202 327 0.2+ 0.9+ 020209 340 0.1- 0.4- 020224 300 0.6+ 0.4+
020202 046 0.5- 0.3+ 020209 162 0.0 0.4- 020224 355 0.2+ 0.2+
020202 118 0.3+ 0.0 020209 162 1.7+ 0.7- 020224 300 0.6+ 0.4-
020202 046 1.5- 0.8- 020210 428 0.5- 0.8- 020224 300 0.2+ 0.2-
020202 118 0.6+ 0.7+ 020210 349 0.2- 0.4- 020224 300 0.6+ 0.1+
020202 046 0.4- 0.4+ 020210 349 0.1- 0.3- 020224 340 0.7- 0.2-
020202 046 0.9- 0.2- 020210 349 0.1+ 0.4- 020224 340 0.1+ 0.1-
020202 118 0.7+ 0.6+ 020210 349 0.1- 0.3- 020224 367 0.8- 0.2-
020202 046 1.3- 1.3- 020210 235 0.3- 1.6+ 020224 340 0.8- 0.2+
020202 118 0.8+ 0.9+ 020210 620 0.1- 0.0 020224 367 1.0- 0.2-
020202 046 0.5- 0.1+ 020210 620 0.0 0.1- 020224 340 0.5- 0.3-
020202 636 0.1- 1.2+ 020210 620 0.1+ 0.4- 020224 367 1.1- 0.2+
020202 636 0.3- 0.6+ 020211 379 0.4+ 1.1- 020224 587 0.5+ 0.1-
020202 151 (3.0- 0.0 ) 020211 379 0.0 0.7- 020224 587 0.1- 0.4-
020202 636 0.9- 0.1- 020211 428 0.3- 0.5- 020224 587 1.5- 1.3+
020202 151 (2.1- 1.4+) 020211 379 0.9- 0.6- 020224 587 0.5- 0.7-
020202 636 0.5+ 1.1+ 020211 428 0.6- 0.5- 020225 379 1.1- 0.7-
020202 151 (3.2- 0.4+) 020211 428 0.2- 0.4- 020225 379 0.1+ 1.4+
020202 201 0.7+ 0.3+ 020211 340 0.5- 0.6- 020226 367 0.1- 0.7+
020202 151 1.4- 0.5+ 020211 340 0.7- 0.7- 020226 367 0.0 0.4+
020202 104 1.9- 0.7- 020211 340 0.5- 0.7- 020226 367 0.0 0.7+
020202 201 0.4+ 0.0 020211 372 0.5- 0.5- 020228 046 0.9+ 1.0+
020202 104 0.5- 0.5- 020211 372 0.3- 1.0- 020228 046 0.4+ 0.0
020202 201 (2.0+ 0.6+) 020211 201 0.4+ 0.1- 020228 046 1.2+ 1.9+
020202 104 0.1- 0.8+ 020211 201 0.8- 0.4- 020301 850 0.2- 0.9-
020202 104 0.0 0.2+ 020211 201 0.4+ 0.0 020302 232 0.5+ 0.7+
020202 104 0.1- 1.2+ 020212 428 0.4- 0.1+ 020302 941 (2.1- 4.5-)
020202 941 0.9+ 0.3+ 020212 428 0.3- 0.1- 020302 941 (2.1- 3.7-)
020202 232 1.5+ 0.3- 020212 300 0.8+ 0.1+ 020303 349 0.2- 0.1-
020202 232 0.2+ 0.1- 020212 300 1.3+ 0.1- 020303 349 0.4- 0.1-
020202 941 1.6+ 0.5+ 020212 300 1.2+ 0.5- 020303 349 0.8- 0.3-
020202 201 0.3+ 0.7+ 020212 300 0.9+ 0.1- 020303 349 0.4- 0.4-
020202 941 1.0+ 0.4+ 020212 300 0.5+ 0.5- 020303 340 0.1- 0.7-
020202 232 1.3+ 0.4+ 020212 300 1.0+ 0.2- 020303 342 0.6- 1.4-
020202 941 0.3+ 0.6+ 020212 300 1.1+ 0.6- 020303 342 1.6- 0.8-
020202 232 0.2+ 0.0 020212 300 1.2+ 0.2- 020303 367 0.3- 0.6-
020202 213 0.6- 0.5+ 020212 372 0.2- 0.7+ 020303 367 0.5- 0.5-
020202 941 0.9+ 0.8+ 020212 372 0.5- 0.1+ 020303 367 0.6- 0.5-
020202 232 0.3+ 0.1+ 020212 162 0.7+ 1.8+ 020303 201 0.9- 0.2+
020202 213 0.2- 0.4+ 020212 162 0.4+ 2.0+ 020303 201 0.1- 0.1-
020202 213 0.1+ 0.2+ 020213 379 0.2+ 0.5- 020303 213 0.9+ 0.2+
020202 213 1.3+ 0.2+ 020213 379 0.7- 0.2- 020303 201 0.4- 0.3-
020202 213 0.3- 0.3+ 020213 342 0.2+ 0.6- 020304 342 0.3- 1.6-
020202 213 0.2+ 0.6+ 020213 342 1.0- 0.1- 020304 372 0.6+ 1.1+
020203 452 1.0+ 1.1+ 020213 201 0.1- 0.5+ 020304 342 1.1+ 0.1+
020203 452 (3.6+ 0.9+) 020213 201 0.2- 0.6+ 020304 372 1.2+ 1.0+
020203 452 1.4+ 0.8+ 020213 201 0.1+ 0.8+ 020304 372 1.3+ 0.7+
020203 428 0.0 0.1- 020214 341 0.4+ 0.0 020304 235 0.4- 0.2-
020203 428 0.1+ 0.0 020214 341 0.3+ 0.1- 020304 201 0.7+ 1.5+
020203 428 0.4- 0.0 020214 342 0.3- 0.1- 020304 201 1.5+ 1.5+
020203 428 0.1- 0.0 020214 341 0.4+ 0.1- 020304 201 0.3- 1.4+
020203 367 0.1+ 1.4+ 020214 341 0.4+ 0.0 020305 850 0.4- 0.9-
020203 367 1.8- 0.5- 020214 342 0.1- 0.6+ 020306 850 1.5+ 0.0
020203 367 (2.3- 1.3-) 020214 636 1.1- 0.5+ 020306 850 0.9+ 1.1+
020203 367 0.6- 0.7- 020214 636 0.6- 1.0+ 020306 342 0.2+ 0.8-
020203 367 0.8+ 1.5+ 020214 636 0.1+ 0.2+ 020306 355 1.1+ 0.8+
020203 046 0.2+ 0.4- 020214 636 0.1- 1.0+ 020306 300 0.8+ 0.3-
020203 046 0.9+ 0.4- 020215 341 0.1+ 0.4+ 020306 300 0.6+ 0.1+
020203 046 0.8+ 0.6- 020215 341 0.1+ 0.3+ 020306 300 0.7+ 0.2-
020203 046 1.2+ 0.2+ 020215 372 0.5- 0.3+ 020306 300 0.5+ 0.1+
020203 235 (3.9+ 5.9+) 020215 367 0.1+ 0.6+ 020306 300 0.2+ 0.3+
020204 896 1.0- 0.9+ 020215 367 0.1+ 0.5+ 020306 300 0.2+ 0.2-
020204 349 0.8- 0.2- 020215 372 1.4+ 0.3+ 020306 340 0.7- 0.2-
020204 349 0.3- 0.2- 020215 367 0.4+ 0.2+ 020306 340 0.4- 0.3-
020204 349 0.3- 0.0 020215 118 0.8+ 0.9+ 020306 340 0.9- 0.5-
020204 349 0.7- 0.6- 020215 118 1.2+ 0.7+ 020306 340 0.5- 0.0
020204 349 0.3- 0.2- 020215 118 1.4+ 0.5+ 020306 342 0.3+ 1.5+
020204 342 0.8- 0.6- 020215 620 0.1+ 0.7- 020307 300 0.2+ 0.4-
020204 342 0.2+ 0.1- 020215 199 1.1+ 0.9+ 020307 300 0.6+ 0.2-
020204 342 0.0 0.8- 020215 199 1.2- 0.4+ 020307 300 0.1- 0.1-
020204 372 0.9- 1.2+ 020215 199 1.3+ 1.7+ 020307 300 0.5+ 0.5+
020204 118 1.1+ 0.3- 020215 199 0.6- 0.3+ 020307 300 0.1+ 0.4-
020204 118 0.7+ 0.4+ 020215 199 1.7+ 1.4+ 020307 355 0.5+ 0.3-
020204 046 0.1+ 0.4+ 020215 199 1.7- 0.0 020307 355 0.3- 0.6-
020204 046 0.3+ 0.7+ 020215 199 1.3- 0.7+ 020307 355 0.5- 0.5+
020204 118 0.7+ 0.1- 020215 199 0.7- 0.0 020308 850 0.8+ 0.0
020204 046 0.4+ 0.8+ 020215 199 1.7- 0.5- 020308 355 0.0 0.0
020204 046 0.4+ 0.9+ 020215 199 0.5+ 0.5+ 020308 355 0.2- 0.3-
020205 452 0.1+ 0.2- 020215 199 0.2- 0.4+ 020308 355 0.3- 0.0
020205 452 0.4- 0.0 020215 620 0.1+ 0.7- 020308 372 0.2- 0.6+
020205 452 0.0 0.1+ 020215 199 0.6+ 0.7+ 020308 201 0.2- 0.4+
020205 452 0.0 1.1+ 020215 199 0.1- 0.1+ 020308 201 0.8+ 0.4+
020205 428 0.2- 0.2- 020215 199 1.2+ 0.4+ 020308 941 0.3- 0.1-
020205 428 0.3- 0.2- 020215 199 0.8+ 1.2+ 020308 941 0.5- 0.1+
020205 428 0.4- 0.2+ 020215 199 0.9- 0.1- 020308 201 1.7+ 0.5+
020206 341 0.6- 0.3- 020215 199 0.1+ 0.6+ 020309 379 0.9+ 0.2+
020206 300 0.6+ 0.2- 020215 620 0.4+ 0.6- 020309 379 1.3+ 0.1+
020206 349 0.4- 0.3- 020216 367 0.4- 0.0 020309 379 1.4+ 0.1+
020206 300 0.1+ 0.3- 020216 367 0.1- 0.1- 020309 349 0.9- 0.6-
020206 349 0.4- 0.6- 020216 367 0.1- 0.0 020309 349 0.8- 0.4-
020206 300 0.7+ 0.4- 020216 046 0.2- 0.6+ 020309 349 0.5- 0.3-
020206 349 0.6- 0.3- 020216 046 0.4+ 0.5+ 020309 349 0.6- 0.1-
020206 300 0.4+ 0.6- 020216 046 0.3- 0.4+ 020309 360 1.1- 1.2+
020206 349 0.6- 0.4- 020216 046 0.1- 0.4+ 020309 360 1.2- 0.9+
020206 300 0.4+ 0.4- 020216 046 0.7- 0.0 020309 360 0.9- 0.7+
020206 349 0.8- 0.5- 020216 046 0.0 0.2- 020309 355 0.3- 0.2+
020206 341 0.8- 0.3- 020218 379 0.4+ 0.0 020309 355 0.0 0.0
020206 402 0.7- 0.5- 020218 379 0.3- 0.9- 020309 355 0.1- 0.4+
020206 867 1.4- 0.2- 020218 379 0.1- 1.0- 020309 340 0.7- 0.1+
020206 402 0.5- 0.2- 020218 379 1.0- 0.8- 020309 340 0.6- 0.6-
020206 402 0.7- 0.4- 020218 300 0.8+ 0.2- 020309 300 0.3- 0.9-
020206 341 0.6- 0.2- 020218 300 0.2+ 0.4- 020309 340 1.2- 0.9-
020206 867 1.1- 0.1- 020218 300 0.9+ 0.8- 020309 300 0.1- 0.4-
020206 340 1.0- 0.2- 020218 300 0.8+ 0.1+ 020309 300 0.4- 0.5+
020206 379 1.0- 0.3- 020218 300 0.3+ 0.7- 020309 340 1.3- 0.4-
020206 347 1.4- 0.1- 020218 300 1.2+ 0.8- 020309 300 0.4- 0.9+
020206 340 0.9- 0.5- 020218 300 0.9+ 0.1- 020309 300 0.0 0.8+
020206 340 1.2- 0.9- 020218 300 0.4+ 0.3- 020309 340 1.3- 0.1-
020206 341 0.6- 0.3- 020218 888 (2.7+ 0.9-) 020309 367 0.2- 0.4-
020206 340 0.8- 0.8- 020218 888 (2.5+ 0.6-) 020309 367 0.5- 0.6-
020206 347 0.7- 0.3- 020218 888 (2.2+ 0.8-) 020309 367 0.3- 0.4-
020206 340 1.1- 0.7- 020218 888 (2.8+ 0.4-) 020309 235 (2.0- 0.6-)
020206 340 0.7- 0.7- 020218 201 0.8- 0.7+ 020309 540 1.1- 1.4+
020206 347 1.3- 0.8- 020218 201 0.2- 0.3- 020309 540 1.1- 0.6-
020206 341 0.6- 0.7- 020218 201 0.8- 0.6+ 020309 540 0.3- 0.2-
020206 347 0.9- 0.7- 020219 379 (1.2- 2.1-) 020309 540 0.2- 0.1-
020206 340 1.4- 0.3- 020219 379 0.7- 1.5- 020310 557 0.5- 0.9-
020206 347 0.9- 0.3- 020219 379 0.8+ 0.1- 020310 557 0.5- 0.4-
020206 340 0.6- 0.8- 020219 379 0.3+ 1.2+ 020310 557 0.4- 0.5-
020206 340 0.5- 0.2- 020219 620 0.2- 0.2+ 020310 557 0.3- 0.5-
020206 367 1.0- 0.7- 020219 620 0.1+ 0.0 020310 557 0.3- 0.4-
020206 367 0.4- 1.6- 020219 620 0.1+ 0.0 020310 557 0.5- 0.7-
020206 367 1.2- 1.1- 020219 620 0.1+ 0.0 020310 557 0.4- 0.5-
020206 367 0.0 0.8- 020220 448 1.1+ 0.6+ 020310 557 0.6- 0.7-
020207 300 0.4+ 0.0 020220 448 0.4+ 0.5+ 020310 235 1.6+ 1.6+
020207 300 0.7+ 0.3+ 020220 448 0.0 0.4+ 020311 347 0.4+ 0.3-
020207 300 0.6+ 0.5- 020220 379 0.2- 1.5- 020311 347 0.1+ 0.5-
020207 300 0.5+ 0.6- 020220 340 0.2+ 0.2- 020311 347 0.2- 0.2-
020207 300 0.5+ 0.1+ 020220 340 0.1- 0.5- 020311 300 0.1- 0.1-
020207 300 0.3+ 0.1+ 020220 340 0.2- 0.8- 020311 300 0.0 0.3+
020207 201 1.3+ 0.3+ 020220 340 0.3+ 0.9- 020311 300 0.2- 0.0
020207 201 1.2+ 0.3+ 020220 300 0.8+ 0.6- 020311 300 0.2- 0.0
020207 235 0.8+ 0.8- 020220 300 0.1+ 0.3+ 020311 300 0.1+ 0.1-
020207 201 0.1+ 0.1+ 020220 300 0.5+ 0.4+ 020311 372 0.7+ 1.3+
020207 201 0.1+ 0.1+ 020220 300 0.3- 0.4- 020311 235 (0.6+ 3.0+)
020207 213 0.2- 1.1+ 020220 300 0.2- 0.7- 020312 235 0.9+ 0.7+
020207 213 (2.8+ 0.9+) 020222 372 0.0 0.8+ 020313 300 0.1+ 0.9-
020207 213 0.5+ 0.2+ 020222 372 0.3- 0.2+ 020313 300 0.7+ 0.7-
020207 213 0.9+ 1.1+ 020222 300 0.4+ 0.8- 020313 300 0.0 0.5-
020208 620 (2.1+ 1.5+) 020222 372 1.6- 0.1+ 020313 300 0.5+ 0.6-
020208 941 1.4+ 0.3+ 020222 300 0.5+ 0.5- 020313 235 0.4+ 0.2-
020208 941 1.4+ 0.6+ 020222 300 0.5+ 0.2- 020316 540 0.2+ 0.8+
020208 620 1.0+ 0.4+ 020222 300 0.7+ 0.8- 020316 540 1.2+ 1.8-
020208 620 0.6+ 0.3+ 020222 300 0.9+ 0.7- 020316 235 0.6- 1.6+
020209 347 0.3- 0.4- 020222 300 0.6+ 0.1- 020316 540 1.0+ 0.6+
020209 347 0.1+ 0.0 020223 347 0.2- 0.4+
Ephemeris:
C/2002 C1 (Ikeya-Zhang)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2002 03 17 01 26.05 +16 55.2 0.856 0.509 30.8 89.8 4.2
2002 03 19 01 26.77 +19 25.9 0.817 0.507 30.5 94.6 4.1
2002 03 21 01 26.59 +22 00.5 0.779 0.509 30.3 99.1 4.0
2002 03 23 01 25.43 +24 38.3 0.742 0.516 30.3 103.2 4.0
2002 03 25 01 23.20 +27 18.5 0.707 0.527 30.4 106.9 4.0
2002 03 27 01 19.83 +30 00.3 0.674 0.542 30.7 109.8 4.0
2002 03 29 01 15.26 +32 43.0 0.643 0.560 31.4 112.0 4.0
2002 03 31 01 09.42 +35 26.0 0.613 0.582 32.3 113.4 4.1
2002 04 02 01 02.23 +38 08.8 0.586 0.606 33.6 114.0 4.2
2002 04 04 00 53.59 +40 50.7 0.561 0.632 35.3 113.8 4.3
2002 04 06 00 43.37 +43 31.2 0.538 0.660 37.4 112.9 4.3
2002 04 08 00 31.37 +46 09.5 0.517 0.689 39.8 111.5 4.4
2002 04 10 00 17.36 +48 44.4 0.498 0.720 42.6 109.4 4.6
2002 04 12 00 01.03 +51 14.4 0.480 0.751 45.8 107.0 4.7
2002 04 14 23 42.03 +53 37.3 0.464 0.783 49.2 104.1 4.8
2002 04 16 23 19.97 +55 49.9 0.450 0.816 53.0 100.9 4.9
2002 04 18 22 54.47 +57 48.2 0.438 0.849 57.0 97.4 5.0
2002 04 20 22 25.32 +59 26.9 0.428 0.882 61.2 93.6 5.1
2002 04 22 21 52.63 +60 40.0 0.419 0.916 65.7 89.7 5.2
2002 04 24 21 17.03 +61 21.4 0.413 0.950 70.3 85.5 5.4
2002 04 26 20 39.77 +61 26.3 0.408 0.984 75.1 81.3 5.5
2002 04 28 20 02.50 +60 52.5 0.405 1.018 80.0 77.0 5.6
2002 04 30 19 26.88 +59 41.0 0.404 1.051 84.9 72.6 5.7
2002 05 02 18 54.20 +57 55.9 0.406 1.085 89.8 68.2 5.9
2002 05 04 18 25.10 +55 43.3 0.410 1.119 94.7 63.9 6.1
2002 05 06 17 59.71 +53 09.9 0.416 1.153 99.5 59.7 6.2
2002 05 08 17 37.82 +50 22.4 0.424 1.186 104.1 55.6 6.4
2002 05 10 17 19.04 +47 26.4 0.434 1.220 108.6 51.7 6.6
2002 05 12 17 02.95 +44 26.9 0.447 1.253 112.8 48.0 6.7
2002 05 14 16 49.12 +41 27.5 0.462 1.286 116.7 44.6 6.9
2002 05 16 16 37.22 +38 31.3 0.479 1.319 120.4 41.4 7.1
2002 05 18 16 26.92 +35 40.3 0.497 1.352 123.7 38.5 7.3
2002 05 20 16 17.99 +32 56.0 0.518 1.385 126.6 35.9 7.5
2002 05 22 16 10.22 +30 19.2 0.541 1.417 129.2 33.6 7.7
2002 05 24 16 03.43 +27 50.5 0.565 1.450 131.5 31.6 7.9
2002 05 26 15 57.49 +25 30.1 0.591 1.482 133.3 29.8 8.1
2002 05 28 15 52.28 +23 17.9 0.618 1.514 134.9 28.3 8.3
2002 05 30 15 47.70 +21 13.7 0.647 1.546 136.0 27.1 8.4
2002 06 01 15 43.69 +19 17.0 0.677 1.577 136.9 26.1 8.6
2002 06 03 15 40.16 +17 27.6 0.708 1.609 137.4 25.3 8.8
2002 06 05 15 37.06 +15 45.0 0.741 1.640 137.7 24.6 9.0
2002 06 07 15 34.36 +14 08.7 0.775 1.671 137.7 24.1 9.2
2002 06 09 15 32.01 +12 38.2 0.810 1.702 137.4 23.8 9.4
2002 06 11 15 29.97 +11 13.3 0.846 1.733 137.0 23.5 9.5
2002 06 13 15 28.22 +09 53.3 0.883 1.764 136.4 23.4 9.7
2002 06 15 15 26.73 +08 38.1 0.922 1.794 135.7 23.3 9.9
2002 06 17 15 25.47 +07 27.1 0.961 1.825 134.8 23.3 10.0
2002 06 19 15 24.44 +06 20.2 1.001 1.855 133.8 23.3 10.2
2002 06 21 15 23.61 +05 16.9 1.041 1.885 132.7 23.3 10.3
2002 06 23 15 22.96 +04 17.0 1.083 1.915 131.6 23.4 10.5
2002 06 25 15 22.48 +03 20.3 1.125 1.944 130.4 23.5 10.6
2002 07 05 15 22.19 -00 44.1 1.348 2.091 123.7 23.9 11.4
2002 07 15 15 24.70 -03 58.3 1.585 2.234 116.6 24.0 12.0
2002 07 25 15 29.26 -06 37.4 1.835 2.373 109.3 23.8 12.6
2002 08 04 15 35.35 -08 50.6 2.093 2.510 102.0 23.3 13.1
2002 08 14 15 42.63 -10 44.4 2.358 2.644 94.8 22.4 13.6
2002 08 24 15 50.86 -12 23.0 2.626 2.775 87.6 21.4 14.0
2002 09 03 15 59.82 -13 49.1 2.895 2.903 80.5 20.0 14.4
2002 09 13 16 09.38 -15 04.9 3.161 3.030 73.3 18.5 14.8
2002 09 23 16 19.41 -16 11.7 3.423 3.154 66.1 16.9 15.2
2002 10 03 16 29.80 -17 10.6 3.678 3.276 59.0 15.2 15.5
2002 10 13 16 40.45 -18 02.3 3.923 3.396 51.7 13.3 15.8
2002 10 23 16 51.29 -18 47.5 4.155 3.515 44.5 11.4 16.1
2002 11 02 17 02.22 -19 26.6 4.373 3.632 37.1 9.5 16.3
The above orbital elements yield the year of the previous perihelion
passage as T = 1660.9 +/- 0.4 (1 sigma), in very close agreement with the
value T = 1661.1 for comet C/1661 C1.
Brian G. Marsden (C) Copyright 2002 MPC M.P.E.C. 2002-F21
Read MPEC 2002-F20
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