MPEC 2012-V22 : 2005 WD
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M.P.E.C. 2012-V22 Issued 2012 Nov. 6, 14:27 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 WD
Revision to MPEC 2005-W21
Additional Observations:
K05W00D C2012 11 05.20353 00 02 13.07 +67 37 40.8 17.8 cEV022704
K05W00D C2012 11 05.20368 00 02 13.73 +67 37 39.0 18.3 cEV022704
K05W00D C2012 11 05.21806 00 03 19.35 +67 34 03.7 18.1 cEV022704
K05W00D C2012 11 05.21820 00 03 20.05 +67 34 02.5 18.4 cEV022704
K05W00D C2012 11 05.23270 00 04 26.19 +67 30 22.7 18.2 cEV022704
K05W00D C2012 11 05.23284 00 04 26.77 +67 30 20.7 18.3 cEV022704
K05W00D C2012 11 05.24724 00 05 32.44 +67 26 39.4 18.2 cEV022704
K05W00D C2012 11 05.24738 00 05 33.07 +67 26 37.0 18.2 cEV022704
K05W00D C2012 11 05.26193 00 06 39.58 +67 22 48.4 18.5 cEV022704
K05W00D C2012 11 05.26207 00 06 40.13 +67 22 47.1 18.1 cEV022704
K05W00D KC2012 11 06.15756601 12 08.18 +62 02 00.7 uEV022J95
K05W00D KC2012 11 06.15849001 12 11.84 +62 01 34.8 uEV022J95
K05W00D KC2012 11 06.15940501 12 15.50 +62 01 08.9 16.4 RuEV022J95
K05W00D C2012 11 06.18345 01 14 15.97 +61 52 42.0 16.9 RoEV022G48
K05W00D C2012 11 06.18407 01 14 18.34 +61 52 24.7 16.8 RoEV022G48
K05W00D C2012 11 06.18429 01 14 19.14 +61 52 18.6 17.0 RoEV022G48
K05W00D C2012 11 06.18469 01 14 20.73 +61 52 07.4 16.9 RoEV022G48
K05W00D C2012 11 06.18490 01 14 21.50 +61 52 01.9 16.9 RoEV022G48
K05W00D C2012 11 06.18510 01 14 22.25 +61 51 56.5 17.0 RoEV022G48
K05W00D C2012 11 06.18531 01 14 23.04 +61 51 50.8 16.9 RoEV022G48
K05W00D KC2012 11 06.18857 01 14 39.97 +61 49 49.4 16.4 RuEV022G56
K05W00D KC2012 11 06.19008 01 14 45.79 +61 49 08.2 16.4 RuEV022G56
K05W00D KC2012 11 06.19159 01 14 51.55 +61 48 26.6 16.5 RuEV022G56
K05W00D KC2012 11 06.19539 01 15 06.14 +61 46 41.5 16.4 RuEV022G56
K05W00D KC2012 11 06.19690 01 15 11.91 +61 45 59.7 16.3 RuEV022G56
K05W00D KC2012 11 06.19840 01 15 17.65 +61 45 17.8 16.4 RuEV022G56
K05W00D C2012 11 06.33616 01 23 50.83 +60 38 16.4 16.8 rEV022718
K05W00D C2012 11 06.33718 01 23 54.55 +60 37 45.8 16.8 rEV022718
K05W00D C2012 11 06.33819 01 23 58.34 +60 37 15.1 16.8 rEV022718
K05W00D AC2012 11 06.37877 01 26 24.70 +60 16 27.2 15.9 oEV022H06
K05W00D AC2012 11 06.37910 01 26 25.96 +60 16 17.0 16.0 oEV022H06
K05W00D AC2012 11 06.37941 01 26 27.07 +60 16 07.8 16.0 oEV022H06
K05W00D AC2012 11 06.37973 01 26 28.19 +60 15 57.4 15.6 oEV022H06
K05W00D AC2012 11 06.38006 01 26 29.38 +60 15 47.0 16.0 oEV022H06
K05W00D AC2012 11 06.38037 01 26 30.69 +60 15 36.6 16.3 oEV022H06
K05W00D AC2012 11 06.38478 01 26 46.91 +60 13 18.2 15.7 oEV022H06
K05W00D AC2012 11 06.38506 01 26 47.75 +60 13 09.7 15.9 oEV022H06
K05W00D AC2012 11 06.38532 01 26 48.76 +60 13 01.7 15.9 oEV022H06
K05W00D AC2012 11 06.38558 01 26 49.80 +60 12 52.8 16.0 oEV022H06
K05W00D AC2012 11 06.38616 01 26 51.86 +60 12 36.0 16.2 oEV022H06
K05W00D AC2012 11 06.38642 01 26 52.83 +60 12 26.8 15.6 oEV022H06
K05W00D AC2012 11 06.38668 01 26 53.85 +60 12 18.7 15.8 oEV022H06
K05W00D AC2012 11 06.38694 01 26 54.84 +60 12 09.8 15.9 oEV022H06
K05W00D AC2012 11 06.38722 01 26 55.77 +60 12 02.1 16.1 oEV022H06
K05W00D C2012 11 06.49727 01 34 10.93 +59 15 11.5 16.6 VuEV022900
K05W00D C2012 11 06.49862 01 34 15.65 +59 14 28.6 16.7 VuEV022900
K05W00D C2012 11 06.50131 01 34 25.05 +59 13 02.4 16.8 VuEV022900
K05W00D C2012 11 06.50266 01 34 29.78 +59 12 19.4 16.6 VuEV022900
K05W00D C2012 11 06.50400 01 34 34.48 +59 11 36.2 16.7 VuEV022900
K05W00D C2012 11 06.50535 01 34 39.16 +59 10 53.5 16.5 VuEV022900
K05W00D C2012 11 06.50670 01 34 43.87 +59 10 09.9 16.7 VuEV022900
K05W00D C2012 11 06.50799 01 34 48.44 +59 09 28.6 16.7 VuEV022900
Observer details:
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, G. Spitz,
R. Brungard, J. Paige, P. Festler, T. McVey, A. Valdivia, C. Gall. 1.0-m
f/2.15 reflector + CCD.
718 Wiggins Observatory, Tooele. Observer P. Wiggins. 0.35-m f/5.5
Schmidt-Cassegrain + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
G48 Doc Greiner Research Obs., Rancho Hildalgo. Observer M. Mills. 0.40-m
f/10 Schmidt-Cassegrain + CCD.
G56 Walnut Creek. Observer G. McKeegan. 0.28-m Schmidt-Cassegrain + CCD
+ f/6.2 focal reducer.
H06 iTelescope Observatory, Mayhill. Observer M. Urbanik. 0.43-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
121105 704 49- 71+ 121106 900 54- 64+ MPO 97975 +25 day
Orbital elements:
2005 WD PHA, Earth MOID = 0.0364 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 353.07437 (2000.0) P Q
n 0.28166990 Peri. 160.67504 +0.85426760 -0.40473736
a 2.3048487 Node 227.76310 +0.39979321 +0.91262301
e 0.5630454 Incl. 26.14256 +0.33225330 -0.05750572
P 3.50 H 21.6 G 0.15 U 1
Residuals in seconds of arc
051119 E12 0.0 0.7+ 121105 704 0.3+ 0.1- 121106 H06 0.3+ 0.5-
051119 E12 0.3+ 0.6+ 121105 704 0.1- 0.0 121106 H06 0.7+ 0.3-
051119 E12 0.2- 0.4+ 121105 704 0.2- 0.5+ 121106 H06 0.4+ 0.2+
051119 E12 0.2- 1.3- 121105 704 0.3- 0.3+ 121106 H06 0.0 0.2-
051119 E12 0.2- 0.6+ 121105 704 0.5+ 0.6- 121106 H06 0.2- 0.2-
051119 E12 0.4- 0.8+ 121105 704 0.0 0.3+ 121106 H06 1.1+ 0.9-
051120 673 (0.7+ 3.1-) 121106 J95 0.0 0.0 121106 H06 1.0+ 0.7-
051120 673 0.1+ 1.0- 121106 J95 0.2- 0.2+ 121106 H06 0.4- 0.4-
051120 673 0.7+ 0.9- 121106 J95 0.1- 0.1+ 121106 H06 0.0 0.2-
051120 673 (1.7- 1.8+) 121106 G48 0.2+ 0.3+ 121106 H06 0.6+ 0.9-
051120 E12 0.1+ 0.1- 121106 G48 0.2+ 0.1+ 121106 H06 0.0 0.5+
051120 E12 0.1+ 1.0+ 121106 G48 0.1- 0.1+ 121106 H06 0.1+ 0.5-
051121 651 (3.2- 0.7-) 121106 G48 0.3+ 0.1- 121106 H06 0.6+ 0.4-
051121 651 0.7- 0.1- 121106 G48 0.1+ 0.3+ 121106 H06 0.9+ 1.1-
051121 651 0.4+ 0.6- 121106 G48 0.0 0.4+ 121106 H06 0.1+ 0.0
051128 E12 0.2+ 0.2+ 121106 G48 0.1- 0.5+ 121106 900 0.1+ 0.0
051128 E12 0.2+ 0.0 121106 G56 0.3- 0.3- 121106 900 0.0 0.1+
051130 E12 0.1- 0.1+ 121106 G56 0.1- 0.1+ 121106 900 0.1- 0.2-
051130 E12 0.3- 0.0 121106 G56 0.3- 0.2+ 121106 900 0.1- 0.0
051203 E12 0.2+ 0.0 121106 G56 0.1- 0.2+ 121106 900 0.0 0.3-
051203 E12 0.0 0.1- 121106 G56 0.2- 0.2+ 121106 900 0.2- 0.2+
121105 704 0.2+ 0.2- 121106 G56 0.2- 0.1- 121106 900 0.3- 0.1-
121105 704 0.1+ 0.2+ 121106 718 1.0- 0.7+ 121106 900 0.2+ 0.0
121105 704 0.0 0.9- 121106 718 1.4- 1.2+
121105 704 0.4+ 0.0 121106 718 1.0- 1.3+
Ephemeris:
2005 WD a,e,i = 2.30, 0.56, 26 q = 1.0071
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 10 07 18 03 51.6 +54 29 07 0.3015 1.0320 87.7 75.4 21.7
...
2012 10 22 18 25 51.5 +58 44 20 0.1716 1.0077 89.3 80.9 20.6
...
2012 10 30 19 22 18.8 +65 08 23 0.09917 1.0095 96.8 77.6 19.3
...
2012 11 05 23 46 07.8 +68 21 32 0.04996 1.0177 120.5 57.1 17.2
2012 11 06 01 01 41.0 +63 12 41 0.04385 1.0196 129.5 48.6 16.7
2012 11 07 02 02 10.1 +54 16 26 0.03922 1.0217 140.9 37.7 16.1
...
2012 11 13 04 17 27.3 -12 05 40 0.05694 1.0373 146.1 32.2 16.8
...
2012 11 21 04 52 38.4 -32 53 40 0.1276 1.0660 124.9 49.5 19.1
...
2012 12 06 05 07 20.7 -38 43 00 0.2706 1.1401 118.7 49.3 20.9
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-V22
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