MPEC 2002-Y02 : COMET C/2001 HT50 (LINEAR-NEAT)
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M.P.E.C. 2002-Y02 Issued 2002 Dec. 16, 19:26 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 HT50 (LINEAR-NEAT)
Observations:
CK01H50T C2002 12 10.75946 09 35 52.21 -06 08 24.0 340
CK01H50T C2002 12 10.76193 09 35 52.00 -06 08 24.2 340
CK01H50T C2002 12 10.76450 09 35 51.80 -06 08 24.3 340
CK01H50T C2002 12 10.76712 09 35 51.62 -06 08 24.6 13.4 T 340
CK01H50T C2002 12 12.11121 09 34 05.93 -06 09 36.9 14.4 N J91
CK01H50T C2002 12 13.79082 09 31 47.79 -06 10 45.3 13.0 T 360
CK01H50T C2002 12 13.79435 09 31 47.49 -06 10 45.2 360
CK01H50T C2002 12 14.37420 09 30 58.19 -06 11 01.7 15.5 N H43
CK01H50T C2002 12 14.41839 09 30 54.31 -06 11 01.8 15.5 N H43
CK01H50T C2002 12 15.11883 09 29 53.60 -06 11 18.4 14.3 N J91
CK01H50T C2002 12 15.36912 09 29 31.91 -06 11 23.2 12.2 T H43
CK01H50T C2002 12 15.39530 09 29 29.78 -06 11 22.3 12.1 T H43
Observer details:
340 Toyonaka. Details not available.
360 Kuma Kogen. Details not available.
H43 Conway. Observers P. C. Sherrod, B. M. Sherrod. 0.31-m f/3.75
Schmidt-Cassegrain + CCD.
J91 Alt emporda Observatory, Figueres. Observer C. Pineda. 0.25-m f/4.0
Schmidt-Cassegrain + CCD.
Orbital elements:
C/2001 HT50 (LINEAR-NEAT)
Epoch 2003 July 20.0 TT = JDT 2452840.5
T 2003 July 9.00642 TT MPC
q 2.7920939 (2000.0) P Q
z +0.0008380 Peri. 324.06750 +0.21046979 +0.95761464
+/-0.0000013 Node 42.91389 +0.95076814 -0.24731690
e 0.9976602 Incl. 163.21208 +0.22746960 +0.14767720
From 416 observations 2001 Mar. 3-2002 Dec. 15, mean residual 0".66.
Ephemeris:
C/2001 HT50 (LINEAR-NEAT)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2002 12 12 09 34.25 -06 09.5 3.029 3.496 110.4 15.3 12.3
2002 12 22 09 18.85 -06 09.4 2.801 3.439 123.1 13.9 12.1
2003 01 01 08 59.09 -05 48.9 2.604 3.382 136.2 11.6 11.9
2003 01 11 08 35.09 -05 02.6 2.450 3.328 148.4 8.9 11.7
2003 01 21 08 07.81 -03 47.8 2.351 3.276 156.1 7.0 11.5
2003 01 31 07 39.04 -02 07.4 2.315 3.225 153.3 7.9 11.4
2003 02 10 07 11.07 -00 09.9 2.340 3.176 142.0 11.0 11.4
2003 02 20 06 45.93 +01 53.1 2.422 3.130 128.1 14.4 11.4
2003 03 02 06 24.80 +03 51.8 2.547 3.086 114.1 17.0 11.4
2003 03 12 06 08.04 +05 40.6 2.701 3.045 100.6 18.7 11.5
2003 03 22 05 55.38 +07 17.2 2.872 3.006 88.0 19.3 11.6
2003 04 01 05 46.26 +08 42.0 3.046 2.970 76.1 19.1 11.6
2003 04 11 05 40.06 +09 55.9 3.216 2.937 65.0 18.0 11.7
2003 04 21 05 36.19 +11 00.4 3.373 2.907 54.5 16.3 11.8
2003 05 01 05 34.13 +11 56.9 3.511 2.880 44.5 14.2 11.8
2003 05 11 05 33.45 +12 46.4 3.625 2.857 35.0 11.7 11.9
The "original" and "future" barycentric values of 1/a are +0.000876
and +0.001232 (+/- 0.000001) AU**-1, respectively.
Brian G. Marsden (C) Copyright 2002 MPC M.P.E.C. 2002-Y02
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