MPEC 2012-L31 : 2012 LJ2
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M.P.E.C. 2012-L31 Issued 2012 June 12, 22:10 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 LJ2
Observations:
K12L02J C2012 06 11.37192 17 32 55.348+07 48 28.37 19.2 gLEL031F51
K12L02J C2012 06 11.38214 17 32 51.686+07 45 50.32 19.4 gLEL031F51
K12L02J C2012 06 11.50306 17 32 08.349+07 14 42.39 19.3 rLEL031F51
K12L02J C2012 06 11.51313 17 32 04.781+07 12 07.30 19.4 rLEL031F51
K12L02J* C2012 06 12.33120 17 27 37.26 +03 44 35.2 19.0 VrEL031703
K12L02J C2012 06 12.34478 17 27 32.68 +03 41 11.5 18.8 VrEL031703
K12L02J C2012 06 12.35161 17 27 30.34 +03 39 28.8 18.9 VrEL031703
K12L02J C2012 06 12.35840 17 27 28.00 +03 37 47.3 19.6 VrEL031703
K12L02J C2012 06 12.39882 17 27 14.48 +03 27 42.6 19.4 VrEL031703
K12L02J C2012 06 12.39944 17 27 14.17 +03 27 32.2 rEL031703
K12L02J KC2012 06 12.42722 17 27 04.93 +03 20 40.0 18.8 RoEL031291
K12L02J KC2012 06 12.42824 17 27 04.58 +03 20 24.5 18.5 RoEL031291
K12L02J KC2012 06 12.42919 17 27 04.27 +03 20 10.6 18.7 RoEL031291
K12L02J C2012 06 12.43371 17 27 02.73 +03 19 02.0 18.9 VrEL031G96
K12L02J C2012 06 12.43778 17 27 01.36 +03 18 01.4 18.9 VrEL031G96
K12L02J C2012 06 12.44593 17 26 58.66 +03 15 59.9 18.7 VrEL031G96
K12L02J C2012 06 12.44997 17 26 57.33 +03 15 00.1 18.7 VrEL031G96
K12L02J KC2012 06 12.86895 17 24 49.02 +01 31 41.1 tEL031204
K12L02J KC2012 06 12.87538 17 24 46.92 +01 30 07.4 18.2 RtEL031204
K12L02J KC2012 06 12.88141 17 24 44.98 +01 28 38.7 tEL031204
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.38-m f/6.8 reflector
+ CCD.
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
703 Catalina Sky 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. 0.68-m Schmidt + CCD.
F51 Pan-STARRS 1, Haleakala. Observers N. Primak, A. Schultz, S. Watters,
J. Thiel, T. Goggia. Measurer PS1 Science Consortium. 1.8-m
Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer S. M. Larson. 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.
Orbital elements:
2012 LJ2 Earth MOID = 0.1531 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 348.67187 (2000.0) P Q
n 0.40562406 Peri. 94.84758 -0.82456151 +0.01279442
a 1.8073971 Node 86.73632 -0.25907167 -0.89731072
e 0.5390800 Incl. 34.50975 +0.50297136 -0.44121399
P 2.43 H 21.6 G 0.15 U 8
Residuals in seconds of arc
120611 F51 0.1+ 0.2- 120612 703 1.2- 0.6- 120612 G96 0.1- 0.0
120611 F51 0.0 0.2- 120612 703 1.0+ 0.7- 120612 G96 0.0 0.2+
120611 F51 0.1- 0.0 120612 703 0.5- 1.8- 120612 G96 0.2+ 0.6+
120611 F51 0.1+ 0.4+ 120612 291 0.3+ 0.6+ 120612 204 0.2+ 0.1-
120612 703 1.0- 0.0 120612 291 0.1+ 0.3+ 120612 204 0.0 0.2+
120612 703 0.4- 0.3- 120612 291 0.3+ 0.6+ 120612 204 0.3+ 0.3-
120612 703 0.6- 0.7- 120612 G96 0.1+ 0.1-
Ephemeris:
2012 LJ2 a,e,i = 1.81, 0.54, 35 q = 0.8331
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 05 13 22 12 55.6 +71 16 41 0.3512 0.9397 68.4 91.3 22.4
...
2012 05 28 19 26 35.3 +57 54 58 0.2124 1.0416 91.7 76.5 21.0
...
2012 06 05 18 15 02.3 +35 02 58 0.1617 1.1026 119.2 53.4 19.8
...
2012 06 11 17 35 01.0 +09 25 19 0.1564 1.1500 147.2 28.6 19.1
2012 06 12 17 29 25.3 +05 08 25 0.1592 1.1580 151.7 24.6 19.1
2012 06 13 17 24 06.9 +01 00 39 0.1629 1.1661 155.8 20.9 19.0
...
2012 06 19 16 57 50.8 -19 03 06 0.2030 1.2147 166.9 11.0 19.2
...
2012 06 27 16 35 19.4 -34 03 47 0.2865 1.2801 153.9 20.4 20.4
...
2012 07 12 16 19 31.9 -45 16 42 0.4825 1.4024 135.6 30.5 22.1
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-L31
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