MPEC 2011-Y05 : 2011 YA
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M.P.E.C. 2011-Y05 Issued 2011 Dec. 17, 14:22 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 YA
Observations:
K11Y00A* C2011 12 16.51700 07 45 56.01 +37 47 06.7 18.0 VrEY005703
K11Y00A C2011 12 16.52204 07 45 56.23 +37 47 13.5 17.9 VrEY005703
K11Y00A C2011 12 16.52708 07 45 56.26 +37 47 19.7 18.0 VrEY005703
K11Y00A C2011 12 16.53215 07 45 56.34 +37 47 27.8 18.0 VrEY005703
K11Y00A 7C2011 12 16.62701 07 45 58.50 +37 49 50.7 tEY005F65
K11Y00A 7C2011 12 16.62834 07 45 58.53 +37 49 52.6 18.1 RtEY005F65
K11Y00A 7C2011 12 16.62977 07 45 58.55 +37 49 54.6 tEY005F65
K11Y00A 7C2011 12 16.63108 07 45 58.56 +37 49 56.5 tEY005F65
K11Y00A 7C2011 12 16.63251 07 45 58.58 +37 49 58.5 tEY005F65
K11Y00A C2011 12 16.65824 07 46 00.77 +37 50 33.1 17.8 RoEY005300
K11Y00A C2011 12 16.65990 07 46 00.72 +37 50 35.7 18.0 RoEY005300
K11Y00A C2011 12 16.66322 07 46 00.82 +37 50 40.4 18.0 RoEY005300
K11Y00A C2011 12 16.66656 07 46 00.87 +37 50 45.5 17.9 RoEY005300
K11Y00A C2011 12 16.66822 07 46 00.90 +37 50 48.4 18.2 RoEY005300
K11Y00A C2011 12 16.99751 07 46 07.25 +37 58 50.5 17.4 RvEY005B18
K11Y00A C2011 12 17.00101 07 46 07.29 +37 58 55.6 17.6 RvEY005B18
K11Y00A C2011 12 17.00522 07 46 07.33 +37 59 02.0 17.7 RvEY005B18
K11Y00A C2011 12 17.00733 07 46 07.35 +37 59 04.9 17.5 RvEY005B18
K11Y00A KC2011 12 17.06119 07 46 09.03 +38 00 22.8 uEY005J95
K11Y00A KC2011 12 17.06340 07 46 09.05 +38 00 26.1 uEY005J95
K11Y00A KC2011 12 17.06580 07 46 09.11 +38 00 29.7 17.6 RuEY005J95
K11Y00A KC2011 12 17.18826607 46 12.55 +38 03 34.6 18.0 VtEY005H21
K11Y00A KC2011 12 17.19063107 46 12.59 +38 03 38.1 18.1 VtEY005H21
K11Y00A KC2011 12 17.19315407 46 12.63 +38 03 42.0 18.0 VtEY005H21
K11Y00A KC2011 12 17.19551907 46 12.66 +38 03 45.8 18.0 VtEY005H21
K11Y00A C2011 12 17.33815 07 46 14.97 +38 07 24.8 18.1 rEY005718
K11Y00A C2011 12 17.34493 07 46 15.12 +38 07 35.1 18.2 rEY005718
K11Y00A C2011 12 17.35219 07 46 15.19 +38 07 46.5 18.3 rEY005718
K11Y00A C2011 12 17.35890 07 46 15.24 +38 07 56.6 18.3 rEY005718
K11Y00A KC2011 12 17.39645407 46 15.25 +38 08 54.9 17.8 RuEY005H36
K11Y00A KC2011 12 17.40098407 46 15.29 +38 09 01.7 17.9 RuEY005H36
K11Y00A KC2011 12 17.40475707 46 15.33 +38 09 07.0 17.9 RuEY005H36
Observer details:
300 Bisei Spaceguard Center--BATTeRS. Observers A. Asami, N. Hashimoto.
1.0-m f/3.0 reflector + CCD.
703 Catalina Sky Survey. Observer A. D. Grauer. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, P. Tricarico,
A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught.
0.68-m Schmidt + CCD.
718 Wiggins Observatory, Tooele. Observer P. Wiggins. 0.35-m f/5.5
Schmidt-Cassegrain + 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.
F65 Haleakala-Faulkes Telescope North. Observers P. Miller, P. Roche,
A. Tripp, R. Miles, R. Holmes, S. Foglia, L. Buzzi. Measurers L. Buzzi,
S. Foglia. 2.0-m f/10 Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Vorobjov, L. Buzzi, S. Foglia. 0.61-m f/4.0 astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2011 YA Earth MOID = 0.0516 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 4.96451 (2000.0) P Q
n 0.31936421 Peri. 228.01630 -0.88414079 +0.46612591
a 2.1197203 Node 339.70290 -0.39678931 -0.78522275
e 0.7578127 Incl. 5.28705 -0.24668464 -0.40761732
P 3.09 H 18.3 G 0.15 U 9
Residuals in seconds of arc
111216 703 0.9- 0.3+ 111216 300 0.2- 0.0 111217 H21 0.0 0.1-
111216 703 0.8+ 0.0 111216 300 0.1- 0.1+ 111217 H21 0.0 0.1-
111216 703 0.2+ 0.8- 111216 300 0.0 0.6+ 111217 H21 0.1- 0.0
111216 703 0.2+ 0.2+ 111216 B18 0.2+ 0.2- 111217 718 0.5- 0.2+
111216 F65 0.1- 0.1- 111217 B18 0.1+ 0.3- 111217 718 0.3+ 0.0
111216 F65 0.0 0.1- 111217 B18 0.0 0.1- 111217 718 0.1+ 0.2+
111216 F65 0.0 0.1- 111217 B18 0.1- 0.3- 111217 718 0.2- 0.1-
111216 F65 0.1- 0.0 111217 J95 0.1+ 0.0 111217 H36 0.2- 0.2+
111216 F65 0.1- 0.0 111217 J95 0.0 0.0 111217 H36 0.3- 0.2+
111216 300 0.0 0.1+ 111217 J95 0.3+ 0.0 111217 H36 0.3- 0.2-
111216 300 0.8- 0.2+ 111217 H21 0.1- 0.1+
Ephemeris:
2011 YA a,e,i = 2.12, 0.76, 5 q = 0.5134
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2011 11 17 07 24 12.6 +31 47 29 0.9148 1.6925 125.5 28.4 20.5
...
2011 12 02 07 37 35.4 +33 49 10 0.6457 1.5248 137.3 26.0 19.5
...
2011 12 10 07 42 52.9 +35 37 16 0.5132 1.4306 143.6 24.1 18.8
...
2011 12 16 07 45 45.5 +37 34 51 0.4190 1.3578 148.0 22.6 18.2
2011 12 17 07 46 07.5 +37 58 55 0.4038 1.3454 148.7 22.4 18.0
2011 12 18 07 46 27.4 +38 24 36 0.3886 1.3330 149.3 22.1 17.9
...
2011 12 24 07 47 30.8 +41 43 40 0.3008 1.2576 152.2 21.4 17.2
...
2012 01 01 07 44 44.8 +50 01 33 0.1918 1.1541 150.4 24.9 16.2
...
2012 01 16 20 21 11.1 +41 22 58 0.07420 0.9522 63.0 113.1 16.9
Gareth V. Williams (C) Copyright 2011 MPC M.P.E.C. 2011-Y05
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