MPEC 2001-H23 : COMET C/2001 C1 = 2000 HR81 (LINEAR)
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M.P.E.C. 2001-H23 Issued 2001 Apr. 21, 21:17 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/2001 C1 = 2000 HR81 (LINEAR)
Observations:
CK01C010 C2000 04 29.28377 13 59 58.54 +17 14 05.4 17.5 N 699
CK01C010 C2000 04 29.30190 13 59 57.89 +17 14 03.4 699
CK01C010 C2000 04 29.32003 13 59 57.18 +17 14 01.0 699
CK01C010 C2000 04 29.33814 13 59 56.55 +17 14 00.5 699
CK01C010 C2000 05 03.27815 13 57 36.22 +17 06 49.8 18.5 N 704
CK01C010 C2000 05 03.29095 13 57 35.74 +17 06 48.9 19.2 N 704
CK01C010 C2000 05 03.30375 13 57 35.31 +17 06 48.4 19.4 N 704
CK01C010 C2000 05 03.31658 13 57 34.83 +17 06 46.0 19.1 N 704
CK01C010 C2000 05 03.32937 13 57 34.42 +17 06 43.6 18.9 N 704
CK01C010 C2001 04 04.65384 14 20 45.79 -14 15 04.1 17.4 T 402
CK01C010 C2001 04 04.65845 14 20 45.61 -14 15 04.9 402
CK01C010 C2001 04 04.66307 14 20 45.39 -14 15 06.1 402
CK01C010 C2001 04 13.31506 14 14 24.27 -14 41 56.0 17.1 T 701
CK01C010 C2001 04 13.34043 14 14 22.98 -14 42 01.2 17.1 T 701
CK01C010 C2001 04 13.36831 14 14 21.76 -14 42 06.1 17.1 T 701
CK01C010 C2001 04 16.29938 14 12 06.17 -14 50 49.2 15.8 T 699
CK01C010 C2001 04 16.33749 14 12 04.34 -14 50 56.7 699
CK01C010 C2001 04 16.37554 14 12 02.53 -14 51 06.2 699
CK01C010 C2001 04 16.41397 14 12 00.71 -14 51 12.4 699
CK01C010 C2001 04 18.32990 14 10 30.76 -14 56 51.0 17.3 T 704
CK01C010 C2001 04 18.34354 14 10 30.08 -14 56 52.4 17.6 T 704
CK01C010 C2001 04 18.35716 14 10 29.39 -14 56 56.0 17.6 T 704
CK01C010 C2001 04 18.37074 14 10 28.73 -14 56 58.4 17.4 T 704
CK01C010 C2001 04 18.38432 14 10 28.05 -14 57 00.8 17.5 T 704
Observer details:
402 Dynic Astronomical Observatory. Observer A. Sugie. 0.60-m f/3.7 reflector
+ CCD.
699 Lowell Observatory-LONEOS. Observer B. A. Skiff. 0.59-m LONEOS Schmidt
+ CCD.
701 Junk Bond Observatory, Sierra Vista. Observer D. Healy. 0.40-m f/5
Schmidt-Cassegrain + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, S. Adams. Measurers J. Stuart,
R. Sayer, J. B. Evans, H. Viggh. 1.0-m f/2.15 reflector + CCD.
Orbital elements:
C/2001 C1 = 2000 HR81 (LINEAR)
Id. S. Nakano
Epoch 2002 Mar. 27.0 TT = JDT 2452360.5
T 2002 Mar. 28.31213 TT Marsden
q 5.1046483 (2000.0) P Q
z +0.0000497 Peri. 219.93675 -0.50985818 +0.68683705
+/-0.0000069 Node 33.71128 -0.32808942 +0.40135488
e 0.9997462 Incl. 68.95152 -0.79523705 -0.60594482
Residuals in seconds of arc
K004T 699 0.3+ 0.2+ K0125 620 0.5+ 0.7- K013L 360 0.4- 0.6-
K004T 699 0.4+ 0.0 K0125 620 (1.5+ 2.1+) K013L 402 0.2- 0.2-
K004T 699 0.3- 0.6- K0125 620 0.9+ 0.9+ K013L 360 0.4- 0.9-
K004T 699 0.1+ 0.7+ K0125 620 (1.9+ 3.9-) K013O 704 0.7+ 0.0
K0053 704 0.3- 0.7- K0125 704 1.0+ 1.0+ K013O 704 0.4+ 0.8-
K0053 704 0.5- 0.1- K0125 704 0.0 1.9+ K013O 704 (0.6+ 2.1-)
K0053 704 0.1- 0.9+ K0125 704 1.0+ 0.5+ K013O 704 0.0 1.9+
K0053 704 0.4- 0.1+ K0125 704 0.0 0.2+ K013O 704 1.2- 0.7+
K0053 704 0.3+ 0.8- K0125 704 1.2+ 0.3- K013Q 349 0.3- 0.7-
K0121 704 (1.0- 2.8+) K0125 704 0.1- 1.2- K013Q 349 0.7+ 0.1+
K0121 704 0.1+ 0.0 K0125 428 0.7- 0.3- K013T 919 0.8- 0.8+
K0121 704 (0.4+ 2.2-) K012G 349 1.3- 0.7- K013T 919 0.0 0.5-
K0122 704 0.7+ 0.7+ K012G 349 0.1- 0.3+ K013T 919 0.9- 1.3-
K0122 734 0.1+ 0.0 K012G 349 0.6- 1.1- K013T 919 0.3+ 0.2-
K0122 734 0.3+ 0.3+ K012J 360 0.4- 0.7- K013T 919 0.2+ 1.3-
K0122 704 1.5- 0.9- K012J 360 0.2- 0.1- K013T 919 0.4- 1.1-
K0122 734 0.5+ 0.8+ K012L 428 0.2- 0.3+ K013T 428 0.0 0.5-
K0122 704 0.6- 0.8- K012L 428 0.3- 0.8+ K013T 428 0.1- 0.0
K0123 850 0.2- 0.5+ K012L 428 0.2+ 0.0 K013U 919 0.4+ 1.8-
K0123 850 0.0 0.4+ K012M 428 0.9- 0.1+ K013U 919 0.1+ 0.0
K0123 704 0.5- 1.4+ K012M 428 0.3- 0.8+ K013U 919 1.0- 0.9-
K0123 704 0.1+ 0.2+ K012M 428 0.6- 0.5+ K013V 360 0.1- 1.1-
K0123 704 0.2+ 0.0 K012M 349 0.0 0.8+ K013V 360 0.2- 0.9-
K0123 704 0.6+ 1.4- K012M 349 0.2- 0.6+ K0144 402 0.0 0.4-
K0123 670 0.6- 0.3- K012M 349 0.7- 0.1+ K0144 402 0.2+ 0.3-
K0123 670 1.5+ 0.7- K012P 046 0.3- 0.0 K0144 402 0.1- 0.6-
K0124 912 (3.2- 3.1+) K012P 046 0.3- 0.4- K014D 701 0.9+ 1.7+
K0124 912 0.6- 1.6+ K012P 046 0.2- 0.0 K014D 701 0.7- 1.1+
K0124 734 0.5+ 0.2+ K012P 046 0.4- 0.2- K014D 701 0.4+ 1.2+
K0124 734 0.6+ 0.1- K012P 046 0.6- 0.1- K014G 699 (0.6+ 3.8+)
K0124 734 0.6+ 0.2- K012Q 360 0.3- 0.3- K014G 699 (0.3+ 3.1+)
K0124 918 0.5+ 0.1- K012Q 360 0.3- 0.4- K014G 699 0.2+ 0.3+
K0124 918 0.0 0.6- K013I 704 0.5+ 0.8+ K014G 699 0.2+ 0.9+
K0124 734 0.5+ 0.4- K013I 704 0.2- 1.2+ K014I 704 1.1+ 0.3+
K0124 918 0.9+ 0.3- K013I 704 0.1- 0.0 K014I 704 0.7+ 1.3+
K0124 918 0.8+ 0.0 K013I 704 0.5+ 0.7- K014I 704 0.2+ 0.0
K0124 428 0.5- 0.3- K013I 704 0.3- 1.9- K014I 704 0.0 0.0
K0125 620 1.8+ 1.9+ K013L 402 0.0 0.7+ K014I 704 0.4- 0.0
K0125 620 0.3+ 0.0 K013L 402 0.3- 0.1-
Ephemeris:
C/2001 C1 = 2000 HR81 (LINEAR)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2001 04 21 14 08.40 -15 04.6 4.714 5.716 175.4 0.8 16.9
2001 05 01 14 00.36 -15 32.6 4.684 5.683 172.1 1.4 16.9
2001 05 11 13 52.45 -15 59.5 4.687 5.651 161.0 3.3 16.9
2001 05 21 13 45.03 -16 26.3 4.722 5.620 149.8 5.2 16.9
2001 05 31 13 38.44 -16 53.7 4.785 5.589 139.0 6.8 16.9
2001 06 10 13 32.92 -17 22.9 4.872 5.559 128.4 8.2 16.9
2001 06 20 13 28.61 -17 54.7 4.978 5.530 118.1 9.3 16.9
2001 06 30 13 25.61 -18 30.0 5.099 5.502 108.2 10.1 16.9
2001 07 10 13 23.92 -19 09.2 5.229 5.474 98.6 10.6 17.0
2001 07 20 13 23.48 -19 52.9 5.363 5.448 89.4 10.7 17.0
2001 07 30 13 24.24 -20 41.1 5.496 5.422 80.5 10.6 17.0
2001 08 09 13 26.09 -21 34.0 5.626 5.397 71.9 10.3 17.1
2001 08 19 13 28.93 -22 31.7 5.747 5.373 63.5 9.7 17.1
2001 08 29 13 32.67 -23 33.9 5.858 5.350 55.5 8.9 17.1
2001 09 08 13 37.19 -24 40.7 5.954 5.328 47.7 8.0 17.1
2001 09 18 13 42.40 -25 51.8 6.035 5.307 40.2 7.0 17.2
2001 09 28 13 48.22 -27 07.1 6.097 5.287 33.2 5.9 17.2
Barycentric "original" and "future" values of 1/a are +0.000049 amd
-0.000183 AU**-1, respectively.
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-H23
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