MPEC 2013-L21 : 2012 RG3
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M.P.E.C. 2013-L21 Issued 2013 June 5, 12:34 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 RG3
Revision to MPEC 2012-R24
Additional Observations:
K12R03G 9C2013 06 02.27285608 57 44.417+35 45 32.15 20.1 RtEL021F65
K12R03G 9C2013 06 02.27290208 57 44.432+35 45 32.09 20.1 RtEL021F65
K12R03G 9C2013 06 04.25931509 12 21.405+35 16 38.98 20.7 RtEL021F65
K12R03G 9C2013 06 04.26113909 12 22.210+35 16 36.62 20.7 RtEL021F65
Observer details:
F65 Haleakala-Faulkes Telescope North. Observers J. D. Armstrong,
K. M. Barber, Z. M. Fox, M. Micheli, S. H. Spear. Measurers K. M. Barber,
Z. M. Fox, M. Micheli, S. H. Spear. 2.0-m f/10 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
130602 F65 3.5+ 1.4+ 130604 F65 4.0+ 1.1+ MPO252115 -0.0012 day
Orbital elements:
2012 RG3 Earth MOID = 0.1386 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC
M 354.20032 (2000.0) P Q
n 0.49869983 Peri. 35.11478 -0.82957148 -0.49815995
a 1.5748647 Node 113.08155 +0.42870669 -0.85768252
e 0.5283088 Incl. 15.91664 +0.35780124 -0.12734741
P 1.98 H 17.9 G 0.15 U 3
Residuals in seconds of arc
120906 F51 0.2- 0.0 120911 E10 0.2+ 0.2- 120921 291 0.2+ 0.6+
120906 F51 0.0 0.2- 120911 E10 0.1+ 0.1- 120921 291 0.2- 0.6+
120910 H21 0.5- 0.4+ 120912 H21 0.8+ 0.1- 120922 291 0.3+ 0.3+
120910 H21 0.1+ 0.3- 120912 H21 0.4+ 0.2+ 120922 291 0.9+ 0.1+
120910 H21 0.1+ 0.1- 120912 807 0.0 0.0 120922 291 0.0 0.1-
120911 H21 0.2+ 0.3- 120912 H21 0.6+ 0.5+ 121017 807 0.3- 0.5-
120911 H21 0.2+ 0.3- 120912 807 0.1+ 0.1- 121017 807 0.1- 0.3-
120911 H21 0.2+ 0.1- 120914 807 0.1+ 0.0 121017 807 0.2+ 0.2-
120911 H21 0.0 0.4- 120914 807 0.1+ 0.1- 121017 807 0.3+ 0.4-
120911 711 0.1- 0.1+ 120914 807 0.1+ 0.0 121118 474 0.1- 0.5+
120911 711 0.0 0.1- 120914 807 0.1+ 0.1+ 121118 474 0.2+ 0.4+
120911 711 0.1+ 0.0 120914 807 0.1+ 0.1+ 121118 474 0.5+ 0.1+
120911 711 0.0 0.3- 120917 807 0.3+ 0.1- 121118 474 0.8+ 1.0+
120911 711 0.1+ 0.3- 120917 807 0.0 0.1- 121205 807 0.1+ 0.5-
120911 711 0.1- 0.1+ 120917 807 0.1+ 0.3- 121205 807 0.2- 0.6-
120911 711 0.2+ 0.3- 120917 807 0.0 0.2- 121205 807 0.3- 0.0
120911 711 0.0 0.2- 120918 291 1.2- 1.4- 130107 807 0.3+ 0.1+
120911 F65 0.1+ 0.5- 120918 291 0.4- 0.4+ 130107 807 0.5+ 0.1+
120911 F65 0.3+ 0.1- 120918 291 1.0- 0.1+ 130107 807 0.1+ 0.0
120911 E10 0.2+ 0.2- 120920 291 0.2- 0.8+ 130602 F65 0.1- 0.1+
120911 E10 0.1- 0.1- 120920 291 0.1- 0.4+ 130602 F65 0.2- 0.1+
120911 E10 0.1+ 0.1- 120920 291 0.7- 0.1+ 130604 F65 0.1+ 0.4+
120911 E10 0.0 0.1- 120921 291 0.0 0.7+ 130604 F65 0.1+ 0.1-
Ephemeris:
2012 RG3 a,e,i = 1.57, 0.53, 16 q = 0.7428
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2013 05 06 05 53 50.3 +32 09 38 0.9919 0.7486 43.9 69.2 19.7
...
2013 05 21 07 29 04.1 +36 13 30 0.8620 0.8034 50.0 74.8 19.7
...
2013 05 29 08 26 19.1 +36 24 00 0.8104 0.8514 54.3 75.1 19.7
...
2013 06 04 09 10 27.4 +35 20 49 0.7827 0.8933 57.9 74.2 19.7
2013 06 05 09 17 47.7 +35 04 05 0.7791 0.9007 58.5 73.9 19.7
2013 06 06 09 25 06.5 +34 45 36 0.7758 0.9081 59.2 73.6 19.7
...
2013 06 12 10 08 04.4 +32 19 23 0.7626 0.9547 63.1 71.5 19.7
...
2013 06 20 11 01 20.5 +27 44 12 0.7633 1.0200 68.3 67.7 19.7
...
2013 07 05 12 24 36.1 +16 59 46 0.8213 1.1471 76.4 59.5 19.9
A. U. Tomatic (C) Copyright 2013 MPC M.P.E.C. 2013-L21
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