MPEC 2001-B18 : 2000 XH44
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M.P.E.C. 2001-B18 Issued 2001 Jan. 22, 19:22 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
2000 XH44
Revision to MPEC 2000-X27
Observations:
K00X44H 1 1991 12 07.09861 00 02 11.55 +11 34 47.1 261
K00X44H 1 1991 12 07.13333 00 02 11.83 +11 34 45.2 261
Observer details:
261 Palomar-DSS. Trail located and measured by DANEOPS (A. Gnadig). 1.2-m
Schmidt.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
911207 261 0.04+ 0.03+ 911207 261 0.04+ 0.03+ MPO 8570 -0.26 day
Orbital elements:
2000 XH44
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Williams
M 343.60939 (2000.0) P Q
n 0.34664330 Peri. 194.76976 -0.99471618 -0.07834872
a 2.0070006 Node 340.36886 +0.10211482 -0.82177594
e 0.3924433 Incl. 11.38885 -0.01059669 -0.56439860
P 2.84 H 16.1 G 0.15 U 3
Residuals in seconds of arc
911207 261 0.3+ 0.5- 001206 046 0.3+ 0.1- 001215 402 0.9+ 0.6-
911207 261 0.3+ 0.3- 001206 046 0.0 0.1+ 001217 704 0.0 0.7+
001025 704 0.5+ 0.3+ 001206 046 0.1+ 0.2- 001217 704 0.7+ 0.1-
001025 704 0.2+ 0.9- 001206 046 0.2+ 0.2- 001217 704 0.2- 0.2+
001025 704 1.0+ 0.7- 001207 704 0.3- 0.0 001217 704 0.1+ 0.3+
001205 704 0.3- 0.8+ 001207 704 0.0 0.4+ 001217 704 0.0 0.7+
001205 704 0.2- 0.3+ 001207 704 0.2+ 0.0 001219 118 0.2+ 0.3-
001205 704 0.5- 0.0 001207 704 0.4+ 0.4- 001219 118 0.0 0.1-
001205 704 0.2- 0.2+ 001207 918 0.1- 0.9+ 001219 118 0.0 0.1-
001205 704 0.7- 0.0 001207 918 1.9- 1.3+ 001221 360 0.3+ 0.4-
001206 704 0.6- 0.5- 001207 704 0.2- 0.3+ 001221 360 0.2+ 0.2-
001206 704 0.3- 0.4- 001207 704 1.0- 0.6- 001221 360 0.2+ 0.5-
001206 704 0.5+ 0.3+ 001207 704 0.1+ 0.4- 001231 711 0.3+ 0.1+
001206 704 0.5- 0.4+ 001207 918 1.3+ 2.2+ 001231 711 0.4- 0.2+
001206 704 0.4- 0.0 001207 704 1.2- 0.4+ 010112 118 0.2- 0.1+
001206 704 0.1+ 0.1+ 001207 704 0.8+ 1.1- 010112 118 0.3- 0.1+
001206 704 0.1+ 0.3+ 001207 704 0.4+ 0.3- 010114 118 0.1- 0.0
001206 704 0.6+ 0.2+ 001207 704 0.0 0.1+ 010114 118 0.1- 0.1+
001206 046 0.0 0.1+ 001207 704 1.4- 1.4- 010117 704 1.6+ 2.6-
001206 046 0.1- 0.0 001207 704 0.2+ 0.2- 010117 704 0.1+ 0.4+
001206 046 0.1+ 0.3+ 001207 704 0.5- 0.6+ 010117 704 0.5+ 0.1-
001206 046 0.1- 0.5+ 001208 704 0.0 0.0 010117 360 0.4- 0.0
001206 046 0.0 0.2+ 001208 704 0.2+ 0.3+ 010117 360 0.3- 0.1-
001206 704 0.0 0.4- 001208 704 0.0 0.4- 010117 360 0.4- 0.0
001206 704 0.2+ 0.2+ 001215 402 0.5+ 0.4-
001206 046 0.2+ 0.1+ 001215 402 0.4+ 0.5-
Ephemeris:
2000 XH44 a,e,i = 2.01, 0.39, 11 q = 1.2194
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 01 21 03 32.55 +38 47.1 0.904 1.615 117.6 32.7 18.3
2001 01 31 03 39.30 +37 04.9 0.934 1.564 109.2 36.5 18.4
2001 02 10 03 51.59 +35 36.7 0.966 1.514 101.7 39.7 18.5
2001 02 20 04 08.57 +34 19.4 0.997 1.466 95.1 42.2 18.6
2001 03 02 04 29.58 +33 07.7 1.027 1.420 89.4 44.3 18.6
2001 03 12 04 53.96 +31 54.9 1.053 1.376 84.5 45.9 18.7
2001 03 22 05 21.15 +30 33.8 1.076 1.337 80.2 47.3 18.7
2001 04 01 05 50.63 +28 58.0 1.095 1.301 76.7 48.3 18.7
2001 04 11 06 21.86 +27 02.0 1.112 1.272 73.8 49.2 18.7
2001 04 21 06 54.30 +24 42.0 1.127 1.248 71.4 49.7 18.7
2001 05 01 07 27.51 +21 55.9 1.142 1.231 69.5 50.1 18.7
2001 05 11 08 01.06 +18 44.0 1.158 1.221 68.2 50.1 18.7
2001 05 21 08 34.62 +15 08.6 1.178 1.220 67.2 49.9 18.7
2001 05 31 09 08.02 +11 13.8 1.201 1.226 66.6 49.4 18.8
2001 06 10 09 41.12 +07 05.2 1.231 1.239 66.1 48.5 18.8
2001 06 20 10 13.89 +02 49.3 1.268 1.260 65.9 47.4 18.9
2001 06 30 10 46.37 -01 27.4 1.314 1.287 65.6 46.0 19.0
2001 07 10 11 18.56 -05 38.4 1.368 1.320 65.3 44.4 19.1
2001 07 20 11 50.53 -09 37.9 1.433 1.358 64.8 42.6 19.2
2001 07 30 12 22.33 -13 21.5 1.506 1.399 64.0 40.7 19.3
2001 08 09 12 53.96 -16 45.7 1.588 1.444 62.9 38.7 19.4
2001 08 19 13 25.43 -19 48.0 1.679 1.492 61.5 36.6 19.6
Gareth V. Williams (C) Copyright 2001 MPC M.P.E.C. 2001-B18
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