MPEC 2016-G147: 2011 KR12
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M.P.E.C. 2016-G147 Issued 2016 Apr. 13, 10:35 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
2011 KR12
Revision to MPEC 2011-K35
Additional Observations:
K11K12R C2016 04 12.50230 15 50 50.003-25 52 05.75 21.2 wLEG147F51
K11K12R C2016 04 12.51263 15 50 48.946-25 52 13.44 21.1 wLEG147F51
K11K12R C2016 04 12.52296 15 50 47.903-25 52 21.11 21.0 wLEG147F51
K11K12R KC2016 04 13.16760015 49 46.77 -25 59 55.5 21.6 RqEG147W85
K11K12R KC2016 04 13.16908515 49 46.61 -25 59 56.6 21.3 RqEG147W85
K11K12R KC2016 04 13.17056915 49 46.47 -25 59 57.6 21.0 RqEG147W85
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers B. Gibson, T. Goggia, N. Primak,
A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau,
H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters,
R. Weryk. 1.8-m Ritchey-Chretien + CCD.
W85 Cerro Tololo-LCOGT A. Observers T. Lister, S. Greenstreet, E. Gomez.
Measurer T. Lister. 1.0-m f/8 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
160412 F51 0.06- 0.02+ 160413 W85 0.06- 0.02+ MPO224722 +0.031 day
Orbital elements:
2011 KR12 Earth MOID = 0.1191 AU
Epoch 2016 Jan. 13.0 TT = JDT 2457400.5 MPC
M 117.09072 (2000.0) P Q
n 0.97430764 Peri. 1.56391 +0.92804031 -0.36976862
a 1.0077171 Node 20.31694 +0.34032561 +0.79280599
e 0.3804616 Incl. 7.42326 +0.15139242 +0.48448924
P 1.01 H 21.3 G 0.15 U 4
Residuals in seconds of arc
110525 E12 (1.9- 0.5-) 110527 807 0.2- 0.0 110610 807 0.0 0.3-
110525 E12 0.0 0.0 110527 E12 0.2- 0.1- 110610 807 0.5- 0.5-
110525 E12 0.0 0.2+ 110527 E12 0.0 0.0 110610 E12 0.2- 0.3+
110525 E12 0.1+ 0.1- 110531 807 0.0 0.2- 110612 807 0.6+ 0.1-
110525 E12 0.3+ 0.0 110531 807 0.2+ 0.1- 110612 807 0.4+ 0.4+
110525 E12 0.6+ 0.6+ 110531 807 0.3+ 0.0 110612 807 0.2- 0.3+
110526 807 0.1- 0.1- 110602 807 0.1- 0.1+ 160412 F51 0.1- 0.0
110526 807 0.1+ 0.0 110602 807 0.3- 0.2- 160412 F51 0.1- 0.0
110526 807 0.2- 0.2+ 110602 807 0.2- 0.1- 160412 F51 0.2+ 0.1-
110526 807 0.2- 0.0 110602 807 0.1- 0.2- 160413 W85 0.1- 0.1+
110526 E12 0.3- 0.0 110602 E12 0.1- 0.2+ 160413 W85 0.2- 0.1+
110526 E12 0.1- 0.5- 110602 E12 0.2+ 0.3- 160413 W85 0.0 0.2+
110527 807 0.1- 0.4- 110610 807 0.0 0.2-
110527 807 0.1- 0.1- 110610 807 0.2- 0.3-
Ephemeris:
2011 KR12 a,e,i = 1.01, 0.38, 7 q = 0.6243
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2016 03 14 15 58 38.3 -20 28 50 0.6703 1.3907 111.9 41.6 22.8
...
2016 03 29 16 02 47.8 -23 02 29 0.5461 1.3873 125.3 36.0 22.2
...
2016 04 06 15 58 40.5 -24 33 32 0.4840 1.3801 133.7 31.6 21.8
...
2016 04 12 15 51 36.0 -25 45 43 0.4408 1.3723 140.7 27.6 21.4
2016 04 13 15 50 02.3 -25 57 56 0.4339 1.3708 141.9 26.8 21.4
2016 04 14 15 48 21.6 -26 10 10 0.4272 1.3692 143.2 26.0 21.3
...
2016 04 20 15 35 42.0 -27 22 47 0.3896 1.3586 151.0 21.0 21.0
...
2016 04 28 15 11 24.7 -28 48 45 0.3478 1.3411 161.4 13.8 20.4
...
2016 05 13 14 06 26.8 -29 42 18 0.3021 1.2982 159.8 15.6 20.1
A. U. Tomatic (C) Copyright 2016 MPC M.P.E.C. 2016-G147
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