MPEC 2012-U45 : 2012 UR18
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M.P.E.C. 2012-U45 Issued 2012 Oct. 19, 13:21 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 UR18
Observations:
K12U18R* C2012 10 18.23238 01 21 10.15 +11 07 55.5 20.9 VrEU045G96
K12U18R C2012 10 18.23995 01 21 11.08 +11 07 13.3 20.9 VrEU045G96
K12U18R C2012 10 18.24870 01 21 12.20 +11 06 24.2 20.5 VrEU045G96
K12U18R C2012 10 18.25571 01 21 13.06 +11 05 44.7 20.6 VrEU045G96
K12U18R C2012 10 18.28484 01 21 16.63 +11 02 58.7 20.4 VrEU045G96
K12U18R C2012 10 18.28751 01 21 16.99 +11 02 43.9 20.7 VrEU045G96
K12U18R C2012 10 18.29021 01 21 17.31 +11 02 28.3 20.7 VrEU045G96
K12U18R C2012 10 18.29289 01 21 17.67 +11 02 13.3 20.8 VrEU045G96
K12U18R C2012 10 18.33188 01 21 22.50 +10 58 29.3 20.9 VrEU045G96
K12U18R C2012 10 18.33256 01 21 22.57 +10 58 25.8 20.5 VrEU045G96
K12U18R C2012 10 18.33323 01 21 22.68 +10 58 21.5 21.1 VrEU045G96
K12U18R C2012 10 18.33485 01 21 22.82 +10 58 12.1 20.8 VrEU045G96
K12U18R |C2012 10 19.10354 01 23 45.61 +09 42 41.0 20.6 VuEU045807
K12U18R |C2012 10 19.10656 01 23 46.05 +09 42 21.5 20.7 VuEU045807
K12U18R |C2012 10 19.10960 01 23 46.49 +09 42 02.4 20.6 VuEU045807
K12U18R |C2012 10 19.11274 01 23 46.94 +09 41 42.8 20.5 VuEU045807
K12U18R C2012 10 19.31116 01 24 20.26 +09 17 53.2 19.8 RoEU045H01
K12U18R C2012 10 19.32091 01 24 21.69 +09 16 48.7 19.8 RoEU045H01
K12U18R C2012 10 19.33017 01 24 23.07 +09 15 46.9 19.9 RoEU045H01
K12U18R C2012 10 19.33399 01 24 23.63 +09 15 21.4 20.2 RoEU045H01
Observer details:
807 Cerro Tololo. Observers T. Linder, R. Holmes, R. Sampson. 0.41-m f/11
Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer A. Boattini. Measurers A. Boattini,
E. J. Christensen, 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.
Orbital elements:
2012 UR18 Earth MOID = 0.0289 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 313.15623 (2000.0) P Q
n 0.61665237 Peri. 248.17386 -0.07162897 -0.99576076
a 1.3670229 Node 206.13614 +0.95667054 -0.05221713
e 0.3507567 Incl. 7.52714 +0.28222469 -0.07572238
P 1.60 H 26.0 G 0.15 U 8
Residuals in seconds of arc
121018 G96 0.1+ 0.4- 121018 G96 0.4+ 0.1+ 121019 807 0.0 0.1-
121018 G96 0.2- 0.0 121018 G96 0.1+ 0.0 121019 807 0.0 0.2+
121018 G96 0.3+ 0.2+ 121018 G96 0.2- 0.5+ 121019 H01 0.1+ 0.1-
121018 G96 0.1+ 0.3+ 121018 G96 0.2+ 0.0 121019 H01 0.0 0.2+
121018 G96 0.3- 0.4- 121018 G96 0.7- 0.0 121019 H01 0.0 0.0
121018 G96 0.2+ 0.0 121019 807 0.0 0.0 121019 H01 0.1- 0.0
121018 G96 0.0 0.2- 121019 807 0.0 0.3-
Ephemeris:
2012 UR18 a,e,i = 1.37, 0.35, 8 q = 0.8875
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 09 19 00 51 56.6 +23 10 47 0.2466 1.2255 150.6 23.7 24.5
...
2012 10 04 01 00 52.2 +21 33 32 0.1490 1.1430 162.1 15.6 23.0
...
2012 10 12 01 08 54.6 +17 49 50 0.1033 1.0998 169.6 9.5 21.9
...
2012 10 18 01 20 29.3 +11 30 19 0.07210 1.0683 176.6 3.2 20.8
2012 10 19 01 23 22.7 +09 52 22 0.06720 1.0631 176.9 2.9 20.6
2012 10 20 01 26 41.8 +07 59 08 0.06242 1.0580 176.0 3.7 20.4
...
2012 10 26 02 03 29.7 -12 44 25 0.03750 1.0281 154.8 24.3 20.1
...
2012 11 03 06 43 14.7 -65 12 44 0.03346 0.9909 87.2 90.9 21.8
...
2012 11 18 11 51 54.2 -46 29 34 0.09691 0.9329 52.7 122.6 25.8
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-U45
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