MPEC 2011-U63 : 2011 UO91
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M.P.E.C. 2011-U63 Issued 2011 Oct. 24, 18:15 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 UO91
Observations:
K11U91O* C2011 10 22.22621 00 40 46.84 +01 29 55.7 20.6 VrEU063G96
K11U91O C2011 10 22.23383 00 40 46.95 +01 30 44.8 20.4 VrEU063G96
K11U91O C2011 10 22.24144 00 40 47.02 +01 31 33.6 19.8 VrEU063G96
K11U91O C2011 10 22.24897 00 40 47.13 +01 32 21.9 20.1 VrEU063G96
K11U91O C2011 10 22.31491 00 40 47.65 +01 39 17.7 20.6 RoEU063H01
K11U91O C2011 10 22.32206 00 40 47.78 +01 40 02.4 20.2 RoEU063H01
K11U91O C2011 10 22.32993 00 40 47.92 +01 40 52.0 20.2 RoEU063H01
K11U91O C2011 10 22.33544 00 40 48.04 +01 41 26.5 20.5 RoEU063H01
K11U91O KC2011 10 23.01080 00 41 24.21 +02 47 27.4 20.7 RuEU063104
K11U91O KC2011 10 23.03359 00 41 24.77 +02 49 32.4 20.5 RuEU063104
K11U91O KC2011 10 23.16437000 41 35.85 +03 01 29.2 21.5 VtEU063H21
K11U91O HC2011 10 23.16517 00 41 38.41 +03 01 46.1 oEU063291
K11U91O KC2011 10 23.17339200 41 36.01 +03 02 18.1 21.4 VtEU063H21
K11U91O KC2011 10 23.18237000 41 36.12 +03 03 06.2 21.4 VtEU063H21
K11U91O C2011 10 23.19567 00 41 38.30 +03 04 25.9 20.6 RoEU063H01
K11U91O C2011 10 23.20286 00 41 38.38 +03 05 04.2 20.9 RoEU063H01
K11U91O C2011 10 23.21237 00 41 38.48 +03 05 54.9 20.2 RoEU063H01
K11U91O C2011 10 23.21884 00 41 38.55 +03 06 29.3 20.2 RoEU063H01
K11U91O KC2011 10 23.89769 00 42 10.14 +04 02 43.3 20.5 RtEU063204
K11U91O FC2011 10 23.92281 00 42 10.47 +04 04 41.2 tEU063204
K11U91O C2011 10 24.14400 00 42 23.71 +04 21 53.8 20.2 RoEU063H01
K11U91O C2011 10 24.15095 00 42 23.80 +04 22 25.4 20.8 RoEU063H01
K11U91O C2011 10 24.16157 00 42 23.93 +04 23 13.5 20.5 RoEU063H01
K11U91O HC2011 10 24.17056 00 42 24.44 +04 23 58.3 oEU063291
K11U91O HC2011 10 24.17253 00 42 24.52 +04 24 06.1 oEU063291
K11U91O C2011 10 24.17270 00 42 24.06 +04 24 03.8 20.7 RoEU063H01
K11U91O HC2011 10 24.17450 00 42 24.54 +04 24 14.5 oEU063291
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, L. Tesi, G. Fagioli,
S. Vergari. Measurer P. Bacci. 0.60-m f/4 reflector + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector
+ CCD.
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
G96 Mt. Lemmon Survey. Observer R. A. Kowalski. Measurers J. D. Ahern,
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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Vorobjov, L. Buzzi, S. Foglia. 0.61-m f/4.0 astrograph + CCD.
Orbital elements:
2011 UO91 Earth MOID = 0.0131 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 9.51837 (2000.0) P Q
n 0.75269250 Peri. 261.00444 +0.33894900 +0.93960980
a 1.1968994 Node 28.94844 -0.82011989 +0.31978271
e 0.3942671 Incl. 5.62026 -0.46099560 +0.12195266
P 1.31 H 25.3 G 0.15 U 8
Residuals in seconds of arc
111022 G96 0.0 0.3- 111023 104 0.2+ 0.6+ 111023 204 0.1+ 0.4-
111022 G96 0.2+ 0.1- 111023 H21 0.1- 0.7- 111023 204 0.3- 0.4-
111022 G96 0.2- 0.1- 111023 291 0.1- 0.2+ 111024 H01 0.1+ 0.5-
111022 G96 0.1+ 0.1+ 111023 H21 0.5+ 0.2- 111024 H01 0.1+ 0.4-
111022 H01 0.1- 0.3+ 111023 H21 0.5+ 0.1- 111024 H01 0.1+ 0.3-
111022 H01 0.1- 0.1- 111023 H01 0.0 0.2- 111024 291 0.6- 1.0+
111022 H01 0.2- 0.1+ 111023 H01 0.0 0.2- 111024 291 0.3+ 0.0
111022 H01 0.0 0.0 111023 H01 0.0 0.2- 111024 H01 0.2+ 0.1-
111023 104 0.1- 0.7+ 111023 H01 0.1+ 0.2- 111024 291 0.2+ 0.5-
Ephemeris:
2011 UO91 a,e,i = 1.20, 0.39, 6 q = 0.7250
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2011 09 24 12 51 39.1 -25 07 59 0.1469 0.8760 27.7 147.8 28.9
...
2011 10 09 13 14 16.5 -52 06 13 0.03699 0.9739 46.3 132.2 24.0
...
2011 10 17 00 31 22.5 -17 18 10 0.03546 1.0278 150.5 28.5 19.4
...
2011 10 23 00 41 26.8 +02 47 39 0.07665 1.0681 161.5 17.2 20.8
2011 10 24 00 42 14.1 +04 11 46 0.08402 1.0748 161.3 17.3 21.0
2011 10 25 00 42 56.5 +05 22 34 0.09146 1.0814 160.9 17.5 21.2
...
2011 10 31 00 46 26.5 +09 46 47 0.1377 1.1210 157.0 20.2 22.2
...
2011 11 08 00 51 03.5 +12 33 36 0.2031 1.1725 150.9 24.3 23.3
...
2011 11 23 01 02 24.5 +15 04 05 0.3382 1.2637 139.4 30.6 24.8
A. U. Tomatic (C) Copyright 2011 MPC M.P.E.C. 2011-U63
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