MPEC 2023-H70 : 2012 UR138
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M.P.E.C. 2023-H70 Issued 2023 April 18, 14:11 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. They are published
on behalf of Division F 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 UR138
Revision to MPEC 2012-U102
Additional Observations:
K12UD8R C2023 03 19.44967412 41 09.913-20 44 15.47 23.02GVEH070F52
K12UD8R C2023 03 19.46052712 41 09.084-20 44 14.48 22.75GVEH070F52
K12UD8R C2023 03 19.47140112 41 08.265-20 44 13.44 22.98GVEH070F52
K12UD8R C2023 03 27.41661612 30 16.161-20 17 50.51 21.65GVEH070F51
K12UD8R C2023 03 27.42761712 30 15.110-20 17 47.40 22.44GVEH070F51
K12UD8R 0C2023 04 16.27591111 56 09.898-17 02 09.28 22.64GVEH070T14
K12UD8R 0C2023 04 16.27689111 56 09.790-17 02 08.40 22.52GVEH070T14
K12UD8R 0C2023 04 16.27788311 56 09.680-17 02 07.57 22.55GVEH070T14
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea. Observer L. Wells. Measurer D.
J. Tholen. 3.6-m f/4.1 reflector + 1024 x 2306 pixels Megacam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230319 F52 0.42- 0.18- 230416 T14 0.46- 0.26- MPO562401 -0.41 days
Orbital elements:
2012 UR138 PHA, Earth MOID = 0.0040 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 298.75053 (2000.0) P Q
n 0.35696179 Peri. 49.07737 +0.56645278 +0.81359189
a 1.9681350 Node 255.89516 -0.79090043 +0.49199706
e 0.5423871 Incl. 7.77155 -0.23153350 +0.30985019
P 2.76 H 21.26 G 0.15 U 2
Residuals in seconds of arc
121009 F51 0.2- 0.0 121025 291 0.0 0.5+ 121113 291 0.1+ 0.2+
121009 F51 0.1+ 0.0 121025 291 0.5- 0.4- 121122 291 0.1- 0.2-
121019 F51 0.1- 0.2+ 121102 J95 0.5- 1.1+ 121122 291 0.1+ 0.4-
121019 F51 0.1- 0.1- 121103 J95 1.0- 1.1+ 121122 291 0.3- 0.4-
121023 F51 0.0 0.1- 121104 291 0.1- 0.3- 121214 568 0.1+ 0.0
121023 F51 0.0 0.1- 121104 291 0.1- 0.5- 121214 568 0.2+ 0.2-
121023 F51 0.1+ 0.0 121104 291 0.1- 0.1- 121214 568 0.1+ 0.0
121024 H21 0.3+ 0.1- 121105 291 0.2- 0.1- 230319 F52 0.2+ 0.0
121024 H21 0.5+ 0.6- 121105 291 0.3+ 0.2+ 230319 F52 0.2+ 0.0
121024 H21 0.6+ 0.3+ 121105 291 0.4- 0.1- 230319 F52 0.4+ 0.0
121024 H21 0.2- 0.2- 121107 291 0.1- 0.3+ 230327 F51 0.1- 0.1+
121024 F65 0.1- 0.1+ 121107 291 0.4+ 0.2+ 230327 F51 0.2- 0.2-
121024 F65 0.1+ 0.1+ 121107 291 1.6+ 0.1- 230416 T14 0.0 0.0
121024 F65 0.1- 0.1- 121112 291 0.6- 0.6+ 230416 T14 0.0 0.0
121024 204 0.3+ 0.2- 121112 291 0.4- 0.0 230416 T14 0.0 0.0
121025 204 0.9+ 0.1- 121113 291 0.0 0.2-
121025 291 0.0 0.2+ 121113 291 0.0 0.1-
Ephemeris:
2012 UR138 a,e,i = 1.97, 0.54, 8 q = 0.9006
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 19 12 41 42.2 -20 44 49 0.9116 1.8625 155.2 13.0 23.2
...
2023 04 03 12 19 38.5 -19 33 27 0.7726 1.7552 164.0 9.0 22.5
...
2023 04 11 12 05 34.2 -18 11 35 0.7194 1.6961 160.1 11.6 22.4
...
2023 04 17 11 54 53.3 -16 51 40 0.6890 1.6510 154.1 15.4 22.4
2023 04 18 11 53 08.7 -16 37 02 0.6847 1.6435 153.0 16.1 22.4
2023 04 19 11 51 25.3 -16 22 05 0.6806 1.6359 151.8 16.9 22.4
...
2023 04 25 11 41 37.6 -14 46 49 0.6600 1.5900 144.5 21.6 22.4
...
2023 05 03 11 30 39.7 -12 31 44 0.6420 1.5279 134.5 28.1 22.5
...
2023 05 18 11 18 53.8 -08 28 34 0.6269 1.4099 116.8 39.8 22.6
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-H70
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