MPEC 2020-F02 : 2012 JM4
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M.P.E.C. 2020-F02 Issued 2020 March 16, 14:11 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. 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 JM4
Revision to MPEC 2012-J42
Additional Observations:
K12J04M C2020 01 25.56641611 33 23.260+01 33 15.96 22.9 GVEF002F51
K12J04M C2020 01 25.57712411 33 23.507+01 33 12.23 22.9 GVEF002F51
K12J04M C2020 01 25.58775811 33 23.659+01 33 08.97 23.7 GVEF002F51
K12J04M C2020 03 02.41327511 21 29.647-00 02 36.20 21.7 GVEF002F52
K12J04M C2020 03 02.42506211 21 28.797-00 02 35.46 22.6 GVEF002F52
K12J04M C2020 03 03.44085311 20 24.351-00 01 32.72 22.9 GVEF002F52
K12J04M C2020 03 03.45273511 20 23.521-00 01 31.67 23.0 GVEF002F52
K12J04M C2020 03 03.46464111 20 22.687-00 01 31.07 22.7 GVEF002F52
K12J04M C2020 03 03.47651911 20 21.855-00 01 30.36 22.9 GVEF002F52
K12J04M C2020 03 16.21499 11 05 00.41 +00 24 18.4 21.2 GVEF002G96
K12J04M C2020 03 16.22029 11 04 59.97 +00 24 19.5 21.2 GVEF002G96
K12J04M C2020 03 16.22559 11 04 59.52 +00 24 20.5 20.6 GVEF002G96
K12J04M C2020 03 16.23090 11 04 59.10 +00 24 21.6 21.2 GVEF002G96
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, 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, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman,
F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
200125 F51 0.48+ 0.23+ 200316 G96 0.88+ 0.44+ MPO235400 +0.66 days
Orbital elements:
2012 JM4 Earth MOID = 0.2528 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Veres
M 351.35675 (2000.0) P Q
n 0.36629621 Peri. 287.76255 -0.44997916 +0.89233241
a 1.9345551 Node 315.44012 -0.79897614 -0.42003259
e 0.3487181 Incl. 2.90168 -0.39894345 -0.16527397
P 2.69 H 21.3 G 0.15 U 1
Residuals in seconds of arc
120511 E12 0.0 0.1+ 120513 D90 0.1- 0.1+ 120528 474 0.5+ 0.3+
120511 E12 0.5- 0.6- 120513 E23 0.2+ 0.6+ 120604 807 0.2+ 0.1+
120511 E12 0.3- 0.6+ 120513 E23 0.0 0.4+ 120604 807 0.3+ 0.2-
120511 E12 0.2- 0.2- 120513 E23 0.3+ 0.3+ 120604 807 0.1- 0.1+
120511 E12 0.2+ 0.5- 120514 807 0.5+ 0.1- 120606 807 0.1- 0.0
120512 807 0.2- 0.1+ 120514 807 0.2+ 0.1+ 120606 807 0.1- 0.1-
120512 807 0.1- 0.0 120514 E10 0.8- 0.2+ 120606 807 0.2- 0.2-
120512 807 0.1+ 0.1+ 120514 E10 0.1+ 0.2+ 120608 807 0.2+ 0.1+
120512 807 0.0 0.1+ 120514 E10 0.1+ 0.3- 120608 807 0.1- 0.1-
120512 291 0.2+ 0.6+ 120514 E10 0.3- 0.7- 120608 807 0.2- 0.1+
120512 291 0.2+ 0.5- 120514 E12 0.1+ 0.1- 120608 807 0.0 0.0
120512 291 0.0 0.4+ 120514 E12 0.0 0.1- 120622 807 0.0 0.3+
120512 E12 0.4+ 0.3- 120514 807 0.3- 0.1+ 120622 807 0.0 0.0
120512 E12 0.3- 0.4- 120514 807 0.3+ 0.0 120622 807 0.4- 0.0
120512 E12 0.3+ 0.2+ 120514 807 0.2+ 0.0 120622 807 0.1- 0.2+
120512 E23 0.2+ 0.8+ 120516 807 0.2+ 0.1+ 120622 807 0.0 0.3+
120512 E23 0.2+ 0.7+ 120516 807 0.1- 0.1- 120710 807 0.2+ 0.1-
120512 E23 0.4- 1.3+ 120516 807 0.1+ 0.1- 120710 807 0.1+ 0.3-
120512 E23 0.1- 0.2+ 120516 807 0.2- 0.1- 120710 807 0.1+ 0.2-
120512 E12 0.1+ 0.3- 120517 807 0.1+ 0.1- 120710 807 0.3- 0.1-
120512 E12 0.1+ 0.2+ 120517 807 0.1- 0.1+ 120710 807 0.1+ 0.1+
120512 D90 0.2- 0.1- 120517 807 0.2+ 0.0 200125 F51 0.2- 0.2-
120512 D90 0.0 0.0 120517 807 0.1+ 0.1- 200125 F51 0.5+ 0.2-
120513 H21 0.3+ 0.0 120518 807 0.1- 0.0 200125 F51 0.3- 0.2+
120513 H21 0.0 0.1+ 120518 807 0.2+ 0.1- 200302 F52 0.4+ 0.2-
120513 H21 0.3- 0.5+ 120519 807 0.1- 0.2- 200302 F52 0.3- 0.1-
120513 H21 0.3- 0.5+ 120519 807 0.0 0.2+ 200303 F52 0.0 0.1+
120513 H36 0.3+ 0.2+ 120521 807 0.0 0.0 200303 F52 0.0 0.3+
120513 I48 0.1- 0.3+ 120521 807 0.0 0.0 200303 F52 0.1+ 0.1+
120513 H36 0.1+ 0.1- 120521 807 0.1+ 0.0 200303 F52 0.1+ 0.0
120513 I48 0.1+ 0.1+ 120522 807 0.3+ 0.1+ 200316 G96 0.0 0.2-
120513 H36 0.5- 0.2- 120522 807 0.2- 0.1- 200316 G96 0.0 0.0
120513 I48 0.1+ 0.8+ 120522 807 0.1- 0.1+ 200316 G96 0.2- 0.2+
120513 D90 0.1+ 0.0 120522 807 0.2- 0.1+ 200316 G96 0.0 0.4+
120513 D90 0.0 0.1- 120528 474 0.4+ 0.4+
120513 D90 0.2- 0.0 120528 474 0.3+ 0.4+
Ephemeris:
2012 JM4 a,e,i = 1.93, 0.35, 3 q = 1.2599
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 02 15 11 33 32.6 +00 08 29 0.7204 1.6567 151.5 16.5 22.6
...
2020 03 01 11 22 55.7 -00 03 39 0.6051 1.5883 168.5 7.2 21.7
...
2020 03 09 11 14 03.0 +00 07 13 0.5609 1.5526 175.5 2.9 21.3
...
2020 03 15 11 06 33.4 +00 21 12 0.5357 1.5262 171.4 5.6 21.3
2020 03 16 11 05 16.6 +00 23 52 0.5321 1.5219 170.3 6.3 21.3
2020 03 17 11 03 59.7 +00 26 37 0.5288 1.5176 169.1 7.1 21.3
...
2020 03 23 10 56 26.0 +00 43 55 0.5124 1.4919 161.7 12.1 21.4
...
2020 03 31 10 47 29.9 +01 05 33 0.4999 1.4588 151.8 18.9 21.6
...
2020 04 15 10 38 07.8 +01 22 14 0.4987 1.4009 135.0 30.4 21.8
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-F02
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