MPEC 2013-A01 : 2005 WB1
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M.P.E.C. 2013-A01 Issued 2013 Jan. 1, 03:23 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
2005 WB1
Revision to MPEC 2005-W38
Additional Observations:
K05W01B 2C2012 05 12.36893110 36 28.812+37 21 21.24 23.0 RtEA001568
K05W01B 2C2012 05 12.37991910 36 29.089+37 21 03.50 23.1 RtEA001568
K05W01B 2C2012 12 13.24679723 05 52.342-15 49 37.22 21.9 RtEA001568
K05W01B 2C2012 12 13.25052723 05 53.358-15 49 20.98 21.7 RtEA001568
K05W01B 2C2012 12 13.25425623 05 54.382-15 49 04.55 22.1 RtEA001568
Observer details:
568 Mauna Kea. Observers M. Micheli, G. T. Elliott. Measurer D. J. Tholen.
2.24-m University of Hawaii reflector.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
120512 568 0.10+ 0.03- 121213 568 0.30+ 0.27+ MPO 97976 -0.33 day
Orbital elements:
2005 WB1 PHA, Earth MOID = 0.0473 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 351.97991 (2000.0) P Q
n 0.69368111 Peri. 265.66369 +0.77102126 +0.53739134
a 1.2638518 Node 61.47413 -0.30921283 +0.78496841
e 0.3552630 Incl. 22.88462 -0.55669887 +0.30827770
P 1.42 H 20.9 G 0.15 U 2
Residuals in seconds of arc
051121 691 0.2- 0.1+ 051122 734 0.0 0.3- 051126 240 0.1- 0.1+
051121 691 0.5- 0.1+ 051122 291 0.2+ 0.3- 051126 240 0.1+ 0.1+
051121 691 0.4+ 0.4- 051122 673 0.0 0.0 051126 240 0.1- 0.0
051121 291 0.1- 0.2+ 051122 291 0.4+ 0.2+ 051129 A50 0.2- 0.3-
051121 291 0.3- 0.2+ 051122 673 0.1- 0.2+ 051129 A50 0.4- 0.3+
051121 291 (1.6+ 0.1+) 051122 291 0.5+ 0.6+ 051129 A50 (2.0- 2.4-)
051121 291 0.1+ 0.0 051122 673 0.0 0.1+ 051129 A50 0.2- 0.1+
051121 291 0.6+ 0.5+ 051122 673 0.2+ 0.1- 051129 A50 0.4- 0.1-
051121 291 0.4+ 0.3+ 051125 J95 0.1+ 0.3- 051201 A53 1.0- 0.3-
051122 595 0.2+ 0.2+ 051125 J95 0.2+ 0.3- 051201 A53 0.6+ 0.6+
051122 595 0.4- 0.1- 051125 J95 0.1+ 0.3- 051201 A53 0.0 0.1+
051122 595 0.2+ 0.5+ 051125 932 0.5+ 0.5- 051209 448 0.1- 0.2+
051122 H06 0.1+ 0.0 051125 932 0.2+ 0.6- 051209 448 0.0 0.1-
051122 H06 1.0- 0.0 051125 932 0.1+ 0.4- 051209 448 0.2- 0.2-
051122 651 (2.6- 3.5-) 051126 A13 (1.6- 1.0+) 051209 448 0.1+ 0.3-
051122 651 0.8- 0.2- 051126 A13 (1.8- 1.6+) 051231 696 0.6- 0.4+
051122 651 0.1- 0.3+ 051126 A13 1.4- 1.4+ 051231 696 0.2- 0.6-
051122 651 0.5- 0.5+ 051126 240 0.0 0.1+ 120512 568 0.0 0.1+
051122 651 0.2+ 0.1- 051126 A13 (1.9- 1.8+) 120512 568 0.0 0.1-
051122 734 0.2- 0.1- 051126 240 0.3+ 0.3+ 121213 568 0.0 0.0
051122 734 0.5- 0.3- 051126 240 0.4+ 0.5+ 121213 568 0.0 0.1-
051122 734 0.1- 0.6- 051126 240 0.2+ 0.2+ 121213 568 0.0 0.0
051122 734 0.2- 0.7- 051126 240 0.0 0.0
Ephemeris:
2005 WB1 a,e,i = 1.26, 0.36, 23 q = 0.8149
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 12 02 22 06 30.9 -29 28 50 0.5479 0.9852 73.8 73.9 22.1
...
2012 12 17 23 22 42.9 -11 20 30 0.5848 1.0702 81.8 65.5 22.2
...
2012 12 25 23 54 57.6 -02 27 18 0.6324 1.1167 84.5 61.2 22.3
...
2012 12 31 00 16 38.7 +03 26 34 0.6782 1.1515 85.7 58.4 22.5
2013 01 01 00 20 05.8 +04 21 27 0.6866 1.1572 85.8 57.9 22.5
2013 01 02 00 23 30.5 +05 15 11 0.6951 1.1630 85.9 57.5 22.5
...
2013 01 08 00 43 14.7 +10 13 53 0.7498 1.1973 86.3 55.0 22.7
...
2013 01 16 01 08 05.4 +15 53 52 0.8306 1.2421 86.0 52.2 22.9
...
2013 01 31 01 52 06.3 +24 05 49 0.9976 1.3223 83.7 47.8 23.3
(Last issue was M.P.E.C. 2012-Y43)
A. U. Tomatic (C) Copyright 2013 MPC M.P.E.C. 2013-A01
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