[Iaude] MPEC L90: 2012 LJ2 [a=1.79,e=0.53,i=34.3,H=21.68]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Sat Jun 8 10:14:12 EDT 2024
M.P.E.C. 2024-L90 Issued 2024 June 8, 14:12 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2012 LJ2
Revision to MPEC 2012-L31
Additional Observations:
K12L02J C2024 06 05.57238820 29 53.606-14 56 09.16 20.61wXEL090F52
K12L02J C2024 06 05.58093620 29 51.959-14 57 14.33 20.65wXEL090F52
K12L02J C2024 06 05.59806420 29 48.662-14 59 24.67 20.70wXEL090F52
K12L02J 2C2024 06 06.08251520 28 22.146-16 00 47.85 20.5 GVEL090J04
K12L02J 2C2024 06 06.08886120 28 20.950-16 01 36.41 20.2 GVEL090J04
K12L02J 2C2024 06 06.09389920 28 19.969-16 02 14.70 20.1 GVEL090J04
K12L02J C2024 06 07.50752520 23 53.890-18 59 43.75 20.72wXEL090F51
K12L02J C2024 06 07.51917220 23 51.497-19 01 10.84 20.63wXEL090F51
K12L02J C2024 06 07.53081720 23 49.112-19 02 38.05 20.58wXEL090F51
K12L02J C2024 06 07.54248620 23 46.710-19 04 05.44 20.46wXEL090F51
K12L02J !C2024 06 08.16503220 21 45.026-20 21 19.39 20.5 GVEL090J04
K12L02J !C2024 06 08.16795820 21 44.416-20 21 41.31 20.4 GVEL090J04
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
J04 ESA Optical Ground Station, Tenerife. Observers D. Abreu, M. Micheli, F.
Ocana, L. Conversi, P. Ruiz. Measurers M. Micheli, R. Kresken, F.
Ocana, A. Knofel, M. Busch, E. Schwab. 1.0-m f/4.4 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240605 F52 4.13- 4.70- 240608 J04 4.48- 3.87- MPO781561 -3.16 days
Orbital elements:
2012 LJ2 Earth MOID = 0.1521 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 0.79993 (2000.0) P Q
n 0.41178689 Peri. 94.73998 -0.82638860 +0.00903840
a 1.7893187 Node 86.60150 -0.25451027 -0.89790824
e 0.5342626 Incl. 34.33424 +0.50230111 -0.44008988
P 2.39 H 21.68 G 0.15 U 0
Residuals in seconds of arc
120611 F51 0.1+ 0.0 120612 I93 0.2- 0.1+ 120619 H21 0.2- 0.0
120611 F51 0.1+ 0.1- 120612 I93 0.1- 0.0 120621 807 0.3- 0.1+
120611 F51 0.1+ 0.0 120612 I93 0.2- 0.3+ 120621 807 0.4- 0.3+
120611 F51 0.3+ 0.3+ 120614 G48 0.4- 0.3- 120621 807 0.3+ 0.1-
120612 703 1.2- 0.3- 120614 G48 0.2- 0.1- 120621 807 0.2+ 0.4-
120612 703 0.5- 0.6- 120614 G48 0.2+ 0.5+ 120621 807 0.2+ 0.4-
120612 703 0.8- 1.1- 120614 G48 0.3- 0.1+ 120625 807 0.2+ 0.4-
120612 703 1.3- 0.9- 120614 H21 0.1+ 0.0 120625 807 0.1+ 0.2+
120612 703 0.9+ 1.0- 120614 H21 0.1- 0.1+ 120625 807 0.0 0.2-
120612 703 0.6- 2.2- 120614 H21 0.1+ 0.2+ 120625 807 0.1+ 0.2-
120612 291 0.1+ 0.1+ 120614 H21 0.0 0.1- 120625 807 0.2+ 0.3+
120612 291 0.0 0.2- 120614 B67 0.1+ 1.2- 240605 F52 0.0 0.0
120612 291 0.1+ 0.1+ 120614 B67 0.1+ 1.1- 240605 F52 0.0 0.0
120612 G96 0.0 0.5- 120614 B67 0.1+ 0.9- 240605 F52 0.0 0.0
120612 G96 0.2- 0.3- 120615 H21 0.2+ 0.2+ 240606 J04 0.2- 0.1+
120612 G96 0.1- 0.2- 120615 H21 0.1+ 0.1+ 240606 J04 0.2+ 0.1-
120612 G96 0.1+ 0.3+ 120615 H21 0.1- 0.3+ 240606 J04 0.0 0.0
120612 F51 0.1- 0.0 120615 H21 0.1- 0.3+ 240607 F51 0.0 0.1-
120612 F51 0.2+ 0.1- 120616 H21 0.5- 0.1+ 240607 F51 0.1- 0.1+
120612 F51 0.0 0.1- 120616 H21 0.1+ 0.0 240607 F51 0.0 0.1+
120612 204 0.3- 0.2- 120616 H21 0.3+ 0.3- 240607 F51 0.0 0.1+
120612 204 0.4- 0.2+ 120619 H21 0.1+ 0.2+ 240608 J04 0.0 0.0
120612 204 0.1- 0.3- 120619 H21 0.1+ 0.0 240608 J04 0.1+ 0.3-
120612 I93 0.4+ 0.0 120619 H21 0.1+ 0.3+
Ephemeris:
2012 LJ2 a,e,i = 1.79, 0.53, 34 q = 0.8334
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 05 09 21 21 11.5 +31 57 48 0.3671 0.9964 77.4 81.5 22.3
...
2024 05 24 20 59 26.8 +10 25 59 0.2948 1.1073 101.0 63.9 21.5
...
2024 06 01 20 42 26.0 -05 15 03 0.2762 1.1705 118.3 49.7 21.1
...
2024 06 07 20 25 30.2 -17 55 53 0.2783 1.2189 132.0 38.2 20.9
2024 06 08 20 22 17.4 -20 00 27 0.2802 1.2270 134.2 36.4 20.8
2024 06 09 20 18 57.9 -22 03 09 0.2825 1.2351 136.4 34.6 20.8
...
2024 06 15 19 56 46.6 -33 18 47 0.3060 1.2838 147.2 25.4 20.8
...
2024 06 23 19 22 43.0 -44 35 22 0.3599 1.3487 153.8 19.4 21.1
...
2024 07 08 18 20 51.2 -54 52 39 0.5100 1.4687 146.3 22.6 22.1
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-L90
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