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M.P.E.C. 2001-H26 Issued 2001 Apr. 23, 18:00 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
2001 HW7
Observations:
K01H07W* C2001 04 18.15247 12 15 42.04 +00 13 39.1 20.5 V 691
K01H07W C2001 04 18.17783 12 15 40.23 +00 14 14.8 20.9 V 691
K01H07W C2001 04 18.20325 12 15 38.38 +00 14 51.5 21.6 V 691
K01H07W C2001 04 21.21644 12 12 24.11 +01 26 42.4 20.2 V 291
K01H07W C2001 04 21.21987 12 12 23.89 +01 26 47.0 20.6 V 291
K01H07W C2001 04 21.22321 12 12 23.61 +01 26 53.0 20.5 V 291
K01H07W HC2001 04 21.22652 12 12 23.40 +01 26 57.6 21.1 V 691
K01H07W HC2001 04 21.23235 12 12 22.99 +01 27 06.6 21.0 V 691
K01H07W C2001 04 21.24265 12 12 22.23 +01 27 21.6 21.2 V 926
K01H07W C2001 04 21.24743 12 12 21.93 +01 27 27.6 21.0 V 926
K01H07W HC2001 04 23.27386 12 10 18.62 +02 15 59.2 20.9 V 691
K01H07W HC2001 04 23.27784 12 10 18.31 +02 16 05.6 20.8 V 691
Observer details:
291 LPL/Spacewatch II. Observers R. S. McMillan, T. H. Bressi, J. A. Larsen,
M. L. Perry. 1.8-m Spacewatch telescope.
691 Steward Observatory, Kitt Peak. Observers J. V. Scotti, J. A. Larsen,
M. T. Read. 0.9-m Spacewatch telescope.
926 Tenagra II Observatory. Observer M. Schwartz. Measurer P. R. Holvorcem.
0.5-m f/10 Ritchey-Chretien + CCD.
Orbital elements:
2001 HW7
Epoch 2001 Apr. 21.0 TT = JDT 2452020.5 Spahr
M 333.80794 (2000.0) P Q
n 0.30959083 Peri. 81.86298 +0.13658045 +0.98992989
a 2.1641000 Node 196.13038 -0.95344675 +0.12116680
e 0.5100053 Incl. 7.69702 -0.26885884 +0.07319445
P 3.18 H 20.9 G 0.15
From 12 observations 2001 Apr. 18-23.
Ephemeris:
2001 HW7 a,e,i = 2.16, 0.51, 8 q = 1.0604
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 04 11 12 23.85 -02 30.8 0.500 1.492 165.3 9.8 20.9
2001 04 21 12 12.63 +01 21.7 0.458 1.424 151.3 19.8 21.0
2001 05 01 12 03.80 +05 18.0 0.430 1.357 137.8 29.9 21.0
2001 05 11 11 59.56 +08 52.5 0.413 1.294 125.6 39.4 21.1
2001 05 21 12 01.12 +11 51.5 0.400 1.235 115.0 48.0 21.2
2001 05 31 12 09.09 +14 10.8 0.387 1.182 106.2 55.5 21.2
2001 06 10 12 23.53 +15 53.7 0.372 1.136 99.3 61.9 21.2
2001 06 20 12 44.42 +17 04.8 0.353 1.100 94.2 67.1 21.2
2001 06 30 13 12.19 +17 44.8 0.331 1.075 91.0 71.1 21.1
2001 07 10 13 47.56 +17 50.1 0.306 1.062 90.0 73.2 21.0
2001 07 20 14 31.65 +17 06.5 0.282 1.062 91.6 73.0 20.8
2001 07 30 15 25.41 +15 10.0 0.264 1.076 96.2 69.7 20.6
2001 08 09 16 27.45 +11 41.9 0.256 1.102 103.6 63.4 20.4
2001 08 19 17 32.73 +06 55.0 0.265 1.139 112.3 55.2 20.3
2001 08 29 18 34.40 +01 49.0 0.294 1.186 120.3 47.4 20.4
2001 09 08 19 27.63 -02 31.1 0.345 1.240 125.4 41.5 20.7
2001 09 18 20 11.56 -05 38.4 0.415 1.299 127.4 37.9 21.1
2001 09 28 20 47.76 -07 35.8 0.502 1.363 126.7 36.1 21.5
2001 10 08 21 18.16 -08 37.0 0.604 1.429 124.2 35.3 22.0
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-H26
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