MPEC 2011-W27 : 2011 WU4
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M.P.E.C. 2011-W27 Issued 2011 Nov. 19, 20:07 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
2011 WU4
Observations:
K11W04U* C2011 11 18.16766 03 18 21.16 +38 21 33.1 19.6 VrEW027G96
K11W04U C2011 11 18.17453 03 18 20.80 +38 22 07.9 19.4 VrEW027G96
K11W04U C2011 11 18.18148 03 18 20.48 +38 22 42.4 19.6 VrEW027G96
K11W04U C2011 11 18.19352 03 18 19.87 +38 23 42.7 19.5 VrEW027G96
K11W04U KC2011 11 18.23189803 18 16.27 +38 26 48.8 19.5 VrEW027H21
K11W04U KC2011 11 18.23520103 18 16.05 +38 27 05.3 19.3 VrEW027H21
K11W04U KC2011 11 18.23838503 18 15.91 +38 27 20.7 19.4 VrEW027H21
K11W04U C2011 11 18.23949 03 18 17.42 +38 27 31.7 19.4 VrEW027G96
K11W04U C2011 11 18.24007 03 18 17.38 +38 27 34.5 19.9 VrEW027G96
K11W04U C2011 11 18.24065 03 18 17.35 +38 27 37.2 19.6 VrEW027G96
K11W04U C2011 11 18.24119 03 18 17.35 +38 27 40.2 19.5 VrEW027G96
K11W04U C2011 11 18.25255 03 18 16.43 +38 28 35.4 19.3 RoEW027H01
K11W04U C2011 11 18.25959 03 18 16.04 +38 29 10.3 19.3 RoEW027H01
K11W04U C2011 11 18.26707 03 18 15.62 +38 29 47.2 19.5 RoEW027H01
K11W04U C2011 11 18.27454 03 18 15.20 +38 30 24.0 19.3 RoEW027H01
K11W04U KC2011 11 18.89424 03 17 57.49 +39 21 59.9 19.5 VuEW027I93
K11W04U KC2011 11 18.90315 03 17 57.06 +39 22 45.5 19.9 VuEW027I93
K11W04U KC2011 11 18.91266 03 17 56.59 +39 23 35.0 19.6 VuEW027I93
K11W04U KC2011 11 18.95517 03 17 53.63 +39 27 15.4 20.0 RuEW027B33
K11W04U KC2011 11 18.96050 03 17 53.35 +39 27 44.4 20.3 RuEW027B33
K11W04U KC2011 11 18.96538 03 17 52.88 +39 28 06.4 19.6 VuEW027595
K11W04U KC2011 11 18.97277 03 17 52.63 +39 28 46.7 19.9 RuEW027B33
K11W04U KC2011 11 18.99636 03 17 51.44 +39 30 45.3 tEW027204
K11W04U KC2011 11 18.99809 03 17 51.11 +39 30 53.5 19.6 VuEW027595
K11W04U KC2011 11 19.01576 03 17 50.39 +39 32 24.2 19.4 RtEW027204
K11W04U C2011 11 19.03437 03 17 49.83 +39 34 04.4 18.6 RvEW027586
K11W04U C2011 11 19.03546 03 17 49.79 +39 34 08.5 18.8 RvEW027586
K11W04U C2011 11 19.03655 03 17 49.73 +39 34 15.2 18.8 RvEW027586
K11W04U C2011 11 19.03764 03 17 49.70 +39 34 19.5 18.7 RvEW027586
K11W04U C2011 11 19.03873 03 17 49.62 +39 34 27.6 18.8 RvEW027586
K11W04U C2011 11 19.03981 03 17 49.54 +39 34 33.0 18.8 RvEW027586
K11W04U C2011 11 19.14991 03 17 50.60 +39 44 04.3 19.6 VrEW027G96
K11W04U C2011 11 19.15632 03 17 50.28 +39 44 38.9 19.5 VrEW027G96
K11W04U C2011 11 19.16913 03 17 49.59 +39 45 47.3 19.6 VrEW027G96
K11W04U C2011 11 19.80895 03 17 26.04 +40 42 27.2 19.1 RuEW027B18
K11W04U C2011 11 19.81172 03 17 25.85 +40 42 43.0 18.7 RuEW027B18
K11W04U C2011 11 19.81453 03 17 25.70 +40 42 58.2 19.1 RuEW027B18
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.38-m f/6.8 reflector
+ CCD.
586 Pic du Midi. Observers M. Birlan, F. Colas, M. Popescu, A. Nedelcu
(EURONEAR). Measurers M. Popescu, M. Birlan. 1.05-m f/8.4 reflector
+ CCD.
595 Farra d'Isonzo. Observer E. Pettarin. 0.40-m f/4.5 reflector + CCD.
B18 Terskol. Observers N. Parakhin, M. Andreev, A. Sergeev, V. Kozlov,
N. Karpov. Measurer M. Andreev. 0.6-m f/12.8 Cassegrain + CCD.
B33 Libbiano Observatory, Peccioli. Observers P. Bacci, R. Emilio,
D. Farnocchia, Y. Frey. Measurer P. Bacci. 0.5-m f/8 Ritchey-Chretien
+ CCD.
G96 Mt. Lemmon Survey. Observer A. Boattini. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, 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. Observer W. H. Ryan. 2.4-m f/8.9
reflector + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov. 0.61-m f/4.0
astrograph + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/5.0 reflector + CCD.
Orbital elements:
2011 WU4 Earth MOID = 0.0834 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 310.91234 (2000.0) P Q
n 0.36204059 Peri. 85.98818 -0.45683886 -0.88769596
a 1.9496854 Node 31.39907 +0.76618084 -0.42544295
e 0.5224889 Incl. 6.32472 +0.45195705 -0.17605163
P 2.72 H 22.5 G 0.15 U 8
Residuals in seconds of arc
111118 G96 0.0 0.2- 111118 H01 0.1- 0.2+ 111119 586 0.1- 0.8-
111118 G96 0.3- 0.2+ 111118 H01 0.1- 0.2+ 111119 586 0.1- 0.4+
111118 G96 0.0 0.1- 111118 I93 0.5- 0.3+ 111119 586 0.2+ 0.9-
111118 G96 0.0 0.0 111118 I93 0.1- 0.4- 111119 586 0.0 1.6+
111118 H21 0.2+ 0.1- 111118 I93 0.3+ 0.3- 111119 586 0.3- 1.5+
111118 H21 0.3- 0.3+ 111118 B33 0.6+ 1.3- 111119 G96 0.0 0.3-
111118 H21 0.1+ 0.1+ 111118 B33 0.8+ 0.3+ 111119 G96 0.1+ 0.0
111118 G96 0.0 0.1- 111118 595 0.2+ 0.1- 111119 G96 0.1- 0.1-
111118 G96 0.1- 0.1- 111118 B33 0.3+ 0.2- 111119 B18 0.1+ 0.4-
111118 G96 0.0 0.3- 111118 204 0.3- 0.1- 111119 B18 0.2- 0.2+
111118 G96 0.3+ 0.0 111118 595 0.2+ 0.0 111119 B18 0.0 0.0
111118 H01 0.0 0.0 111119 204 0.4- 0.2-
111118 H01 0.0 0.2+ 111119 586 0.4- 0.7+
Ephemeris:
2011 WU4 a,e,i = 1.95, 0.52, 6 q = 0.9310
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2011 10 20 03 18 43.9 +19 02 08 0.3784 1.3459 153.8 19.1 22.0
...
2011 11 04 03 21 41.9 +25 26 19 0.2499 1.2349 164.9 12.1 20.7
...
2011 11 12 03 20 36.6 +31 24 54 0.1931 1.1780 165.7 12.0 20.0
...
2011 11 18 03 18 23.4 +38 07 57 0.1561 1.1372 160.7 16.7 19.6
2011 11 19 03 17 52.3 +39 31 07 0.1505 1.1305 159.4 17.9 19.6
2011 11 20 03 17 18.1 +40 59 51 0.1450 1.1240 158.0 19.2 19.5
...
2011 11 26 03 12 21.3 +52 14 27 0.1157 1.0859 147.0 29.7 19.3
...
2011 12 04 02 49 36.6 +75 29 10 0.08982 1.0396 124.8 51.1 19.2
...
2011 12 19 15 27 13.3 +50 16 22 0.09974 0.9711 79.7 94.5 20.8
A. U. Tomatic (C) Copyright 2011 MPC M.P.E.C. 2011-W27
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