MPEC 2009-W59 : 2002 WX12
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M.P.E.C. 2009-W59 Issued 2009 Nov. 21, 13:18 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://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2002 WX12
Revision to MPEC 2002-X02
Additional Observations:
K02W12X C2009 11 20.46538 08 06 21.81 +01 25 04.1 21.0 V EW059G96
K02W12X C2009 11 20.46837 08 06 22.71 +01 24 54.0 20.5 V EW059G96
K02W12X C2009 11 20.47128 08 06 23.65 +01 24 44.2 20.4 V EW059G96
K02W12X C2009 11 20.49088 08 06 29.76 +01 23 36.9 20.4 V EW059G96
K02W12X C2009 11 20.49181 08 06 30.08 +01 23 33.7 20.6 V EW059G96
K02W12X C2009 11 20.51080 08 06 35.98 +01 22 27.6 19.5 R EW059H01
K02W12X C2009 11 20.51444 08 06 37.12 +01 22 15.1 19.4 R EW059H01
K02W12X C2009 11 20.52063 08 06 39.08 +01 21 53.8 19.3 R EW059H01
K02W12X C2009 11 20.52665 08 06 40.97 +01 21 33.0 19.3 R EW059H01
K02W12X C2009 11 20.52804 08 06 41.47 +01 21 28.5 20.2 V EW059G96
K02W12X C2009 11 20.52861 08 06 41.65 +01 21 26.7 20.6 V EW059G96
K02W12X C2009 11 20.52918 08 06 41.83 +01 21 24.9 20.5 V EW059G96
K02W12X C2009 11 20.52978 08 06 42.01 +01 21 22.1 20.6 V EW059G96
K02W12X tC2009 11 21.34482 08 11 11.43 +00 33 35.3 19.9 V EW059291
K02W12X tC2009 11 21.34857 08 11 12.63 +00 33 21.4 20.3 V EW059291
K02W12X tC2009 11 21.35233 08 11 13.90 +00 33 07.6 20.7 V EW059291
K02W12X C2009 11 21.36778 08 11 18.68 +00 32 09.4 19.9 R EW059H36
K02W12X C2009 11 21.37778 08 11 21.93 +00 31 34.0 20.0 R EW059H36
K02W12X C2009 11 21.38778 08 11 25.27 +00 30 57.8 19.7 R EW059H36
K02W12X C2009 11 21.41381 08 11 34.05 +00 29 25.7 19.2 R EW059H01
K02W12X C2009 11 21.41755 08 11 35.28 +00 29 12.2 19.3 R EW059H01
K02W12X C2009 11 21.42149 08 11 36.58 +00 28 58.0 19.2 R EW059H01
K02W12X C2009 11 21.42902 08 11 39.05 +00 28 30.8 19.1 R EW059H01
Observer details:
291 LPL/Spacewatch II. Observer M. T. Read. 1.8-m f/2.7 reflector + CCD.
G96 Mt. Lemmon Survey. Observer A. R. Gibbs. Measurers E. C. Beshore,
A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
091120 G96 9.16- 1.73+ 091121 H01 9.42- 1.77+ MPO 57909 +3.6 day
Orbital elements:
2002 WX12 Earth MOID = 0.1264 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 350.84139 (2000.0) P Q
n 0.42459822 Peri. 328.26893 -0.99685376 -0.00457163
a 1.7531427 Node 211.76065 +0.02631400 -0.96080218
e 0.6603498 Incl. 8.64620 -0.07476738 -0.27719717
P 2.32 H 19.9 G 0.15 U 3
Residuals in seconds of arc
021130 704 0.0 0.1- 021201 704 0.0 0.4- 091120 G96 0.2- 0.2+
021130 704 0.4+ 0.1+ 021201 704 0.5+ 0.3+ 091120 G96 0.2+ 0.4+
021130 704 0.0 0.7+ 021201 704 (2.1+ 0.8+) 091120 G96 0.4- 0.4+
021201 734 0.2- 0.3+ 021201 446 (1.7- 5.1+) 091120 G96 0.0 0.4+
021201 734 0.1- 0.9- 021201 474 0.0 0.1+ 091120 H01 0.1+ 0.1+
021201 649 0.1- 0.1- 021201 474 0.1+ 0.0 091120 H01 0.0 0.1+
021201 649 0.1- 0.0 021201 474 0.0 0.0 091120 H01 0.2+ 0.1+
021201 649 0.6- 0.1- 021202 649 0.3- 0.4- 091120 H01 0.1+ 0.0
021201 649 0.3- 0.2- 021202 649 0.2+ 0.2+ 091120 G96 0.0 0.2-
021201 704 0.5+ 0.1- 021202 649 0.2+ 0.2- 091120 G96 0.0 0.0
021201 704 0.2- 0.2- 021206 E14 (0.4- 2.8-) 091120 G96 0.0 0.1+
021201 704 0.0 0.4+ 021206 E14 (0.7+ 3.3-) 091120 G96 0.1- 0.6-
021201 704 0.2- 0.6+ 021206 E14 (1.0+ 2.3+) 091121 291 0.0 0.5+
021201 704 0.4+ 0.1+ 021206 E14 0.3+ 0.7- 091121 291 0.5- 0.1+
021201 704 0.5+ 0.3+ 021210 926 0.2+ 0.1+ 091121 291 0.1- 0.2-
021201 704 0.8- 0.1- 021210 926 0.3- 0.3- 091121 H36 0.5+ 0.6-
021201 446 (0.7- 2.7-) 021213 413 0.0 0.1- 091121 H36 0.0 0.0
021201 704 0.7+ 0.9- 021213 413 0.1- 0.0 091121 H36 0.8+ 0.1-
021201 704 0.3+ 0.0 021213 413 0.3- 0.0 091121 H01 0.2+ 0.1+
021201 704 0.1+ 0.4+ 021214 413 0.1- 0.2+ 091121 H01 0.2+ 0.1+
021201 704 0.7- 0.2+ 021214 413 0.1- 0.1+ 091121 H01 0.3+ 0.1+
021201 704 0.4+ 0.5- 091120 G96 0.4+ 0.0 091121 H01 0.2+ 0.1+
Ephemeris:
2002 WX12 a,e,i = 1.75, 0.66, 9 q = 0.5955
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 11 15 07 40.28 +05 56.3 0.456 1.256 115.7 45.2 20.4
2009 11 20 08 03.89 +01 51.6 0.394 1.201 113.6 48.9 20.1
2009 11 25 08 33.52 -03 27.6 0.339 1.146 109.4 54.3 19.8
2009 11 30 09 11.83 -10 16.1 0.296 1.089 102.6 62.1 19.7
2009 12 05 10 01.86 -18 22.9 0.266 1.033 92.7 72.4 19.6
2009 12 10 11 05.10 -26 35.7 0.255 0.976 80.5 84.6 19.8
2009 12 15 12 17.44 -32 52.3 0.265 0.919 68.0 96.5 20.3
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-W59
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