MPEC 2005-E86 : 2001 WH2
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M.P.E.C. 2005-E86 Issued 2005 Mar. 15, 12:54 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.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2001 WH2
Revision to MPEC 2001-W44
Additional Observations:
K01W02H 2C2005 03 08.35043613 41 36.565+30 44 09.68 20.9 R EE086568
K01W02H 2C2005 03 08.35280913 41 36.382+30 44 10.72 20.8 R EE086568
K01W02H 2C2005 03 09.34631013 40 18.640+30 49 47.84 20.8 R EE086568
K01W02H 2C2005 03 09.34835113 40 18.487+30 49 48.52 20.7 R EE086568
Observer details:
568 Mauna Kea. Observer F. Bernardi. Measurers F. Bernardi, D. J. Tholen.
2.24-m University of Hawaii reflector + 8192 CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
050308 568 0.04+ 0.05- 050309 568 0.04+ 0.05- MPO 57848 -0.051 day
Orbital elements:
2001 WH2
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5 MPC
M 21.39126 (2000.0) P Q
n 0.33793157 Peri. 16.89684 -0.12610291 -0.95831472
a 2.0413472 Node 80.91644 +0.87750317 -0.22829924
e 0.4266967 Incl. 15.04850 +0.46269454 +0.17179159
P 2.92 H 20.1 G 0.15 U 1
Residuals in seconds of arc
011023 608 1.1+ 0.4- 011205 670 0.1+ 0.3+ 011223 704 0.0 0.0
011023 608 0.7- 0.3- 011209 198 0.1- 0.3- 011223 704 0.3+ 0.1+
011023 608 0.4+ 0.2- 011209 198 0.1- 0.3- 011223 704 0.4+ 0.0
011118 704 0.2- 0.3+ 011209 198 0.3+ 0.7- 011223 704 0.0 0.1-
011118 704 0.6- 0.5+ 011209 118 0.2- 0.2+ 011223 113 0.2+ 0.2-
011118 704 0.0 0.5+ 011209 118 0.4+ 0.2+ 011223 113 0.5+ 0.2-
011118 704 0.8- 1.2+ 011210 118 0.2+ 0.1+ 011223 113 0.3+ 0.8+
011118 704 0.1+ 0.7+ 011210 704 0.9- 0.7+ 011223 113 0.1+ 0.1-
011119 704 0.1- 0.1- 011210 704 1.0- 0.4+ 011223 113 0.5+ 0.2+
011119 704 0.4- 0.4+ 011210 670 0.7+ 0.3- 020103 151 0.2- 0.1+
011119 704 0.4+ 0.4- 011210 704 1.8- 0.1+ 020103 151 0.4+ 0.3-
011120 704 0.1+ 0.1+ 011210 704 1.5- 0.3+ 020103 151 0.1- 0.1+
011120 704 0.0 0.1+ 011210 704 1.1- 1.2- 020103 151 0.6+ 0.4-
011120 704 0.2- 0.1- 011210 670 1.0- 0.2+ 020103 151 0.9+ 1.2+
011120 704 0.3+ 0.4+ 011210 670 1.4+ 0.3- 020103 151 0.0 0.7-
011120 704 0.0 0.2- 011212 670 0.6+ 0.7+ 020112 699 0.2- 0.1+
011120 402 0.1+ 0.3+ 011212 670 1.1+ 0.6- 020112 699 0.4- 0.4+
011120 402 0.1+ 0.2- 011212 670 0.3- 0.5- 020112 699 0.6- 0.0
011121 046 0.3- 0.3+ 011213 198 0.6+ 0.8+ 020112 699 0.4- 0.1+
011121 046 0.3+ 0.2+ 011213 198 0.1- 0.4+ 020113 649 0.0 0.2+
011121 046 0.4+ 0.2+ 011213 198 0.1- 0.5- 020113 649 0.0 0.2+
011121 046 0.8+ 0.9- 011215 649 0.2+ 0.0 020113 649 0.2- 0.1+
011121 046 1.5+ 0.3- 011215 649 0.1+ 0.0 020113 649 0.2- 0.2-
011121 557 0.3+ 0.6- 011215 649 0.1- 0.0 020113 446 1.3- 0.9-
011121 557 0.1+ 0.1+ 011215 649 0.1+ 0.3- 020113 446 1.2- 0.7-
011121 704 0.2+ 0.4- 011219 704 1.2- 0.6- 020201 704 1.5+ 1.0+
011121 704 0.3- 0.6- 011219 704 0.5- 0.3- 020201 704 1.0+ 0.4+
011121 704 0.2- 0.3- 011219 704 0.5- 0.3- 020201 704 1.1+ 0.8-
011121 704 0.5- 0.7- 011219 704 0.6- 0.9- 020201 704 1.2+ 0.8-
011121 704 0.2- 0.5- 011219 704 1.7- 0.2- 020206 704 0.2- 0.2-
011126 118 0.4+ 0.3- 011220 644 0.3+ 0.3+ 020206 704 1.2- 0.2-
011126 118 0.7+ 0.2- 011220 644 0.2+ 0.4+ 020206 704 0.3+ 0.3+
011126 118 0.6+ 0.3- 011220 644 1.4+ 0.6+ 020206 704 0.1- 0.8+
011204 413 0.5+ 0.2+ 011221 118 0.1- 0.1+ 050308 568 0.1- 0.1-
011204 413 0.4+ 0.2- 011221 118 0.2- 0.1+ 050308 568 0.0 0.0
011204 413 0.5+ 0.6+ 011221 118 0.2+ 0.2+ 050309 568 0.1- 0.1+
011205 670 0.6- 1.2+ 011223 704 0.2+ 0.1+ 050309 568 0.1+ 0.0
Ephemeris:
2001 WH2 a,e,i = 2.04, 0.43, 15 q = 1.1703
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 03 11 13 38.04 +30 58.1 0.649 1.541 138.5 25.3 21.3
2005 03 21 13 22.57 +31 14.8 0.684 1.597 143.2 22.0 21.4
2005 03 31 13 06.17 +30 31.0 0.734 1.653 144.7 20.4 21.5
2005 04 10 12 51.55 +28 51.7 0.801 1.710 142.8 20.7 21.8
Timothy B. Spahr (C) Copyright 2005 MPC M.P.E.C. 2005-E86
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