MPEC 2012-J42 : 2012 JM4
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M.P.E.C. 2012-J42 Issued 2012 May 14, 19:05 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 JM4
Observations:
K12J04M*QC2012 05 11.64382 14 33 15.38 -29 49 31.4 19.4 VrEJ042E12
K12J04M QC2012 05 11.65667 14 33 15.60 -29 49 34.5 19.4 VrEJ042E12
K12J04M QC2012 05 11.66951 14 33 15.88 -29 49 35.6 19.5 VrEJ042E12
K12J04M QC2012 05 11.68235 14 33 16.17 -29 49 38.6 19.5 VrEJ042E12
K12J04M QC2012 05 11.73254 14 33 17.39 -29 49 47.1 rEJ042E12
K12J04M |C2012 05 12.20772 14 33 33.96 -29 51 44.3 19.7 VoEJ042807
K12J04M |C2012 05 12.21175 14 33 34.04 -29 51 45.2 19.9 VoEJ042807
K12J04M |C2012 05 12.21619 14 33 34.14 -29 51 46.0 19.7 VoEJ042807
K12J04M |C2012 05 12.22262 14 33 34.26 -29 51 47.2 19.7 VoEJ042807
K12J04M HC2012 05 12.23785 14 33 36.10 -29 52 20.2 oEJ042291
K12J04M HC2012 05 12.24846 14 33 36.30 -29 52 23.9 oEJ042291
K12J04M HC2012 05 12.25903 14 33 36.49 -29 52 25.5 oEJ042291
K12J04M QC2012 05 12.37778 14 33 42.11 -29 52 14.9 rEJ042E12
K12J04M QC2012 05 12.39051 14 33 42.39 -29 52 18.9 rEJ042E12
K12J04M QC2012 05 12.49763 14 33 44.82 -29 52 47.9 rEJ042E12
K12J04M C2012 05 12.52301 14 33 45.23 -29 52 52.1 19.8 VoEJ042E23
K12J04M C2012 05 12.53234 14 33 45.41 -29 52 54.4 19.6 VoEJ042E23
K12J04M C2012 05 12.54422 14 33 45.60 -29 52 56.4 19.3 VoEJ042E23
K12J04M C2012 05 12.55689 14 33 45.87 -29 53 00.3 19.6 VoEJ042E23
K12J04M QC2012 05 12.59812 14 33 46.76 -29 53 10.6 rEJ042E12
K12J04M QC2012 05 12.60342 14 33 46.86 -29 53 11.1 rEJ042E12
K12J04M `C2012 05 12.65568114 33 48.25 -29 53 20.0 18.5 RuEJ042D90
K12J04M `C2012 05 12.66739414 33 48.52 -29 53 21.9 19.2 RuEJ042D90
K12J04M KC2012 05 13.23765514 34 08.59 -29 55 57.5 19.8 VtEJ042H21
K12J04M KC2012 05 13.24344014 34 08.69 -29 55 58.5 19.4 VtEJ042H21
K12J04M KC2012 05 13.25607814 34 08.95 -29 56 00.4 19.9 VtEJ042H21
K12J04M KC2012 05 13.26225014 34 09.09 -29 56 01.5 19.9 VtEJ042H21
K12J04M KC2012 05 13.26758 14 34 09.51 -29 56 03.2 19.0 RuEJ042H36
K12J04M KC2012 05 13.27298 14 34 08.62 -29 55 25.3 uEJ042I48
K12J04M KC2012 05 13.27655 14 34 09.69 -29 56 05.1 19.2 RuEJ042H36
K12J04M KC2012 05 13.28135 14 34 08.85 -29 55 26.7 uEJ042I48
K12J04M KC2012 05 13.28709 14 34 09.88 -29 56 07.1 18.8 RuEJ042H36
K12J04M KC2012 05 13.28975 14 34 09.07 -29 55 27.2 uEJ042I48
K12J04M `C2012 05 13.45783014 34 17.95 -29 56 05.0 19.0 RuEJ042D90
K12J04M `C2012 05 13.47079314 34 18.26 -29 56 08.4 18.8 RuEJ042D90
K12J04M `C2012 05 13.48375414 34 18.55 -29 56 11.5 19.5 RuEJ042D90
K12J04M `C2012 05 13.49672914 34 18.86 -29 56 14.6 19.3 RuEJ042D90
K12J04M C2012 05 13.50811 14 34 18.76 -29 56 18.0 19.8 VoEJ042E23
K12J04M C2012 05 13.51894 14 34 18.98 -29 56 20.5 19.7 VoEJ042E23
K12J04M C2012 05 13.53200 14 34 19.28 -29 56 23.3 20.1 VoEJ042E23
K12J04M |C2012 05 14.09571 14 34 39.92 -29 58 13.1 19.8 VoEJ042807
K12J04M |C2012 05 14.09982 14 34 39.99 -29 58 13.8 20.0 VoEJ042807
K12J04M 0C2012 05 14.37415814 34 50.98 -29 58 56.7 19.4 RtEJ042E10
K12J04M 0C2012 05 14.37555914 34 51.09 -29 58 57.0 19.1 RtEJ042E10
K12J04M 0C2012 05 14.37695314 34 51.13 -29 58 57.9 19.3 RtEJ042E10
K12J04M 0C2012 05 14.37834514 34 51.14 -29 58 58.7 19.4 RtEJ042E10
K12J04M QC2012 05 14.56544 14 34 55.83 -29 59 38.9 19.3 VrEJ042E12
K12J04M QC2012 05 14.65425 14 34 57.97 -29 59 51.4 19.2 VrEJ042E12
Observer details:
291 LPL/Spacewatch II. Observer R. S. McMillan. 1.8-m f/2.7 reflector + CCD.
807 Cerro Tololo. Observers R. Holmes, T. Linder. 0.41-m f/11
Ritchey-Chretien + CCD.
D90 RAS Observatory, Moorook. Observer K. Hills. 0.41-m f/9 Ritchey-Chretien
+ CCD.
E10 Siding Spring-Faulkes Telescope South. Observer T. Lister. 2.0-m f/10
Ritchey-Chretien + CCD.
E12 Siding Spring Survey. Observer R. H. McNaught. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 0.5-m Uppsala Schmidt + CCD.
E23 Arcadia. Observer A. Hidas. 0.35-m Schmidt-Cassegrain + 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.
I48 Observatorio El Catalejo, Santa Rosa. Observer J. Spagnotto. 0.20-m f/5
reflector + CCD.
Orbital elements:
2012 JM4 Earth MOID = 0.2522 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 332.78049 (2000.0) P Q
n 0.36573679 Peri. 286.77913 -0.45732678 +0.88860002
a 1.9365273 Node 315.95097 -0.79539372 -0.42644022
e 0.3497159 Incl. 2.90572 -0.39774496 -0.16893416
P 2.69 H 21.2 G 0.15 U 7
Residuals in seconds of arc
120511 E12 0.1+ 0.1+ 120512 E23 0.2+ 0.7+ 120513 I48 0.1- 0.8+
120511 E12 0.4- 0.6- 120512 E23 0.4- 1.4+ 120513 D90 0.1+ 0.0
120511 E12 0.3- 0.6+ 120512 E23 0.1- 0.2+ 120513 D90 0.0 0.1-
120511 E12 0.1- 0.1- 120512 E12 0.1+ 0.3- 120513 D90 0.2- 0.0
120511 E12 0.2+ 0.4- 120512 E12 0.0 0.2+ 120513 D90 0.1- 0.1+
120512 807 0.1- 0.1+ 120512 D90 0.3- 0.1- 120513 E23 0.1+ 0.6+
120512 807 0.1- 0.0 120512 D90 0.1- 0.1+ 120513 E23 0.1- 0.4+
120512 807 0.1+ 0.1+ 120513 H21 0.2+ 0.0 120513 E23 0.2+ 0.3+
120512 807 0.0 0.2+ 120513 H21 0.1- 0.0 120514 807 0.4+ 0.1-
120512 291 0.2+ 0.5+ 120513 H21 0.4- 0.5+ 120514 807 0.1+ 0.1+
120512 291 0.2+ 0.6- 120513 H21 0.4- 0.5+ 120514 E10 0.7- 0.2+
120512 291 0.1+ 0.3+ 120513 H36 0.2+ 0.1+ 120514 E10 0.1+ 0.2+
120512 E12 0.5+ 0.2- 120513 I48 0.2- 0.4+ 120514 E10 0.1+ 0.3-
120512 E12 0.2- 0.4- 120513 H36 0.0 0.2- 120514 E10 0.3- 0.7-
120512 E12 0.3+ 0.2+ 120513 I48 0.1- 0.1+ 120514 E12 0.0 0.2-
120512 E23 0.2+ 0.9+ 120513 H36 0.6- 0.3- 120514 E12 0.0 0.1-
Ephemeris:
2012 JM4 a,e,i = 1.94, 0.35, 3 q = 1.2593
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 04 14 14 23 12.9 -25 57 52 0.3314 1.3181 159.2 15.7 20.3
...
2012 04 29 14 28 16.4 -28 32 07 0.2847 1.2851 165.9 11.0 19.7
...
2012 05 07 14 31 06.2 -29 27 25 0.2700 1.2728 166.1 11.0 19.6
...
2012 05 13 14 34 00.8 -29 54 37 0.2633 1.2660 164.4 12.4 19.6
2012 05 14 14 34 35.6 -29 57 56 0.2625 1.2651 164.0 12.7 19.6
2012 05 15 14 35 12.2 -30 00 54 0.2619 1.2643 163.6 13.0 19.6
...
2012 05 21 14 39 37.4 -30 11 46 0.2600 1.2606 160.8 15.3 19.6
...
2012 05 29 14 47 53.9 -30 09 51 0.2629 1.2594 156.7 18.5 19.8
...
2012 06 13 15 11 06.8 -29 30 54 0.2842 1.2682 149.2 24.2 20.1
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-J42
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