[Iaude] MPEC K73: 2012 KB4 [a=1.09,e=0.06,i=6.3,H=25.4]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue May 19 14:59:11 EDT 2020
M.P.E.C. 2020-K73 Issued 2020 May 19, 18:57 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2012 KB4
Revision to MPEC 2012-K22
Additional Observations:
K12K04B C2020 04 20.53916816 21 55.555-00 01 47.92 22.4 GVEK073F51
K12K04B C2020 04 20.55309316 21 55.112-00 01 59.41 22.8 GVEK073F51
K12K04B C2020 04 20.56697216 21 54.659-00 02 10.67 22.1 GVEK073F51
K12K04B C2020 04 29.50011416 16 54.987-02 45 50.77 22.1 GVEK073F52
K12K04B C2020 04 29.51199416 16 53.949-02 46 07.44 22.1 GVEK073F52
K12K04B C2020 04 29.52387016 16 52.968-02 46 25.19 21.2 GVEK073F52
K12K04B C2020 04 29.53573216 16 51.926-02 46 42.04 22.2 GVEK073F52
K12K04B C2020 05 02.52540816 13 25.787-04 04 51.97 21.9 GVEK073F52
K12K04B C2020 05 02.53920916 13 24.295-04 05 15.08 22.2 GVEK073F52
K12K04B C2020 05 02.55296616 13 22.842-04 05 38.78 21.1 GVEK073F52
K12K04B C2020 05 16.33794415 44 21.288-13 24 47.00 20.9 GVEK073F51
K12K04B C2020 05 16.34958615 44 18.851-13 25 24.81 20.9 GVEK073F51
K12K04B C2020 05 19.38126015 34 44.825-16 14 03.33 20.88wUEK073F51
K12K04B C2020 05 19.39263315 34 42.116-16 14 42.84 21.05wUEK073F51
K12K04B C2020 05 19.41534615 34 36.660-16 16 02.69 21.27wUEK073F51
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, K. Chambers, T. de Boer, L. Denneau, J. Fairlamb, H.
Flewelling, C.-C. Lin, E. Magnier. 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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
200420 F51 2.80+ 1.38+ 200519 F51 5.27+ 1.97+ MPO231383 +0.49 days
Orbital elements:
2012 KB4 Earth MOID = 0.0712 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Veres
M 277.09074 (2000.0) P Q
n 0.86284610 Peri. 277.68413 +0.92299330 +0.37270771
a 1.0927324 Node 60.47681 -0.29519441 +0.84541531
e 0.0609254 Incl. 6.31897 -0.24686765 +0.38257277
P 1.14 H 25.4 G 0.15 U 3
Residuals in seconds of arc
120517 G96 0.2- 0.1- 120521 F51 0.1- 0.1- 200429 F52 0.2- 0.3+
120517 G96 0.3+ 0.2+ 120521 F51 0.0 0.1- 200429 F52 0.6+ 0.4-
120517 G96 0.2- 0.2- 120521 F51 0.1+ 0.2+ 200429 F52 0.4+ 0.3-
120517 G96 0.2- 0.0 120521 F51 0.1+ 0.1- 200502 F52 0.1+ 0.2-
120517 G96 0.3- 0.1- 120529 291 0.2+ 0.3+ 200502 F52 0.1- 0.2+
120517 G96 0.3- 0.0 120529 291 0.6- 0.3+ 200502 F52 0.0 0.2-
120517 G96 0.3+ 0.0 120529 291 0.3- 0.1- 200516 F51 0.1- 0.0
120519 G96 0.1- 0.3- 200420 F51 0.0 0.2+ 200516 F51 0.0 0.1+
120519 G96 0.2+ 0.8- 200420 F51 0.0 0.0 200519 F51 0.0 0.1-
120519 G96 0.1- 0.1- 200420 F51 0.1- 0.0 200519 F51 0.1+ 0.3+
120519 G96 0.0 0.2+ 200429 F52 0.1- 0.1- 200519 F51 0.1+ 0.0
Ephemeris:
2012 KB4 a,e,i = 1.09, 0.06, 6 q = 1.0262
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 04 19 16 22 04.0 +00 18 14 0.1553 1.1280 140.1 34.8 23.1
...
2020 05 04 16 11 24.1 -04 47 59 0.1155 1.1149 156.1 21.5 22.0
...
2020 05 12 15 55 58.0 -09 50 41 0.09935 1.1074 167.3 11.6 21.3
...
2020 05 18 15 39 12.3 -14 54 26 0.09023 1.1015 175.4 4.3 20.8
2020 05 19 15 35 58.8 -15 51 03 0.08899 1.1005 175.7 4.0 20.7
2020 05 20 15 32 38.5 -16 49 10 0.08785 1.0995 175.2 4.4 20.7
...
2020 05 26 15 10 29.2 -23 02 17 0.08286 1.0936 165.6 13.3 21.0
...
2020 06 03 14 37 28.4 -31 39 10 0.08110 1.0855 150.3 27.6 21.4
...
2020 06 18 13 38 47.3 -45 03 08 0.08906 1.0707 125.9 50.3 22.2
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-K73
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