MPEC 2012-W37 : 2012 WL4
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M.P.E.C. 2012-W37 Issued 2012 Nov. 23, 02:16 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
2012 WL4
Observations:
K12W04L*QC2012 11 19.58560 04 04 44.45 -18 48 41.0 20.9 VrEW037E12
K12W04L QC2012 11 19.59990 04 04 43.04 -18 49 25.1 20.1 VrEW037E12
K12W04L QC2012 11 19.61408 04 04 41.51 -18 50 08.7 20.6 VrEW037E12
K12W04L QC2012 11 19.63797 04 04 39.17 -18 51 22.4 19.9 VrEW037E12
K12W04L QC2012 11 19.64102 04 04 38.90 -18 51 31.0 20.1 VrEW037E12
K12W04L QC2012 11 19.72397 04 04 30.54 -18 55 43.3 19.6 VrEW037E12
K12W04L |C2012 11 20.01363 04 04 05.66 -19 10 18.9 19.5 VuEW037807
K12W04L |C2012 11 20.01721 04 04 05.30 -19 10 29.7 19.6 VuEW037807
K12W04L |C2012 11 20.02079 04 04 04.95 -19 10 40.7 19.7 VuEW037807
K12W04L |C2012 11 20.02452 04 04 04.60 -19 10 52.1 19.8 VuEW037807
K12W04L |C2012 11 20.02794 04 04 04.26 -19 11 02.6 19.8 VuEW037807
K12W04L KC2012 11 20.32038 04 03 35.61 -19 25 59.9 19.5 RqEW037H36
K12W04L KC2012 11 20.32689 04 03 34.92 -19 26 19.4 19.5 RqEW037H36
K12W04L KC2012 11 20.33355 04 03 34.33 -19 26 38.4 19.5 RqEW037H36
K12W04L QC2012 11 20.65801 04 03 04.10 -19 42 10.2 20.0 VrEW037E12
K12W04L QC2012 11 20.66348 04 03 03.51 -19 42 26.7 20.3 VrEW037E12
K12W04L |C2012 11 21.15675 04 02 19.01 -20 06 08.8 19.6 VuEW037807
K12W04L |C2012 11 21.15973 04 02 18.72 -20 06 17.3 19.7 VuEW037807
K12W04L |C2012 11 21.16272 04 02 18.43 -20 06 25.7 19.7 VuEW037807
K12W04L |C2012 11 21.16578 04 02 18.13 -20 06 34.5 19.7 VuEW037807
K12W04L |C2012 11 21.16902 04 02 17.81 -20 06 43.7 19.7 VuEW037807
K12W04L QC2012 11 22.57751 04 00 09.71 -21 11 12.3 rEW037E12
Observer details:
807 Cerro Tololo. Observers T. Linder, R. Holmes, R. Sampson. 0.41-m f/11
Ritchey-Chretien + CCD.
E12 Siding Spring Survey. Observer R. H. McNaught. Measurers A. Boattini,
E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
S. M. Larson, R. H. McNaught. 0.5-m Uppsala Schmidt + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
Orbital elements:
2012 WL4 Earth MOID = 0.2779 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 27.79119 (2000.0) P Q
n 0.58325344 Peri. 130.15790 +0.91041869 +0.26869411
a 1.4187238 Node 217.58207 -0.27201038 +0.96168655
e 0.1383087 Incl. 31.04703 +0.31168601 +0.05442844
P 1.69 H 19.9 G 0.15 U 8
Residuals in seconds of arc
121119 E12 0.5- 0.5+ 121120 807 0.0 0.1- 121121 807 0.0 0.3-
121119 E12 0.2+ 0.3+ 121120 807 0.2+ 0.2- 121121 807 0.1+ 0.3-
121119 E12 1.1- 0.1+ 121120 807 0.1+ 0.3- 121121 807 0.2+ 0.1-
121119 E12 0.1+ 0.6- 121120 H36 1.0+ 0.2+ 121121 807 0.3+ 0.2-
121119 E12 0.7+ 0.1+ 121120 H36 0.4+ 0.0 121121 807 0.3+ 0.2-
121119 E12 0.1+ 0.4- 121120 H36 1.4+ 0.6+ 121122 E12 0.2- 0.1+
121120 807 0.3+ 0.1- 121120 E12 0.2+ 0.3+
121120 807 0.1+ 0.0 121120 E12 0.5- 0.3-
Ephemeris:
2012 WL4 a,e,i = 1.42, 0.14, 31 q = 1.2225
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 10 24 04 41 07.8 +14 44 03 0.3565 1.2865 139.5 30.2 19.5
...
2012 11 08 04 23 03.7 -06 19 06 0.3623 1.3124 148.1 23.5 19.4
...
2012 11 16 04 10 25.5 -15 29 55 0.3929 1.3272 144.1 25.9 19.7
...
2012 11 22 04 01 01.8 -20 45 21 0.4259 1.3387 139.0 28.9 19.9
2012 11 23 03 59 32.0 -21 29 41 0.4321 1.3407 138.1 29.4 20.0
2012 11 24 03 58 03.8 -22 11 46 0.4384 1.3426 137.3 29.9 20.0
...
2012 11 30 03 49 56.2 -25 39 37 0.4794 1.3544 131.9 32.8 20.3
...
2012 12 08 03 41 25.6 -28 34 11 0.5401 1.3703 125.4 35.9 20.7
...
2012 12 23 03 34 01.0 -30 18 37 0.6639 1.4005 115.1 39.5 21.3
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-W37
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