MPEC 2019-U21 : 2018 LK2
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M.P.E.C. 2019-U21 Issued 2019 October 18, 01:00 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
2018 LK2
Revision to MPEC 2018-L30
Additional Observations:
K18L02K C2011 04 13.44190213 56 18.555-21 35 52.14 20.8 GVEU021F51
K18L02K C2011 04 13.45221413 56 17.189-21 35 59.77 20.7 GVEU021F51
K18L02K C2011 04 13.53693413 56 05.993-21 37 01.43 20.4 GVEU021F51
K18L02K C2011 04 13.54787513 56 04.561-21 37 09.40 20.6 GVEU021F51
K18L02K C2011 04 14.48861213 54 03.284-21 48 38.05 21.1 GVEU021F51
K18L02K C2011 04 14.50020813 54 01.708-21 48 46.56 21.0 GVEU021F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, E.
Magnier, 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
110413 F51 0.04+ 0.03+ 110414 F51 0.04+ 0.03+ MPO473496 -0.00 days
Orbital elements:
2018 LK2 Earth MOID = 0.0682 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 Veres
M 120.31314 (2000.0) P Q
n 0.43071906 Peri. 308.10620 +0.80478581 +0.58571552
a 1.7364941 Node 16.75798 -0.38395732 +0.63731820
e 0.4474041 Incl. 19.49316 -0.45265503 +0.50076226
P 2.29 H 19.8 G 0.15 U 1
Residuals in seconds of arc
110413 F51 0.1+ 0.1+ 180607 807 0.0 0.2- 181021 695 0.1- 0.1+
110413 F51 0.0 0.0 180607 474 0.2- 0.2+ 181027 291 0.3+ 0.3+
110413 F51 0.1- 0.0 180607 474 0.1- 0.0 181027 291 0.2+ 0.2+
110413 F51 0.1+ 0.0 180607 474 0.2- 0.2+ 181027 291 0.2- 0.0
110414 F51 0.0 0.1+ 180608 I11 0.2+ 0.2+ 181102 I52 0.2- 0.3-
110414 F51 0.0 0.1- 180608 I11 0.1+ 0.4+ 181102 I52 0.0 0.3+
180602 C51 0.1+ 0.6- 180608 I11 0.2+ 0.8+ 181102 I52 0.3+ 0.4-
180602 C51 0.2- 0.2- 180619 807 0.1- 0.3+ 181102 I52 0.2- 0.3+
180602 C51 0.0 0.3- 180619 807 0.1+ 0.2+ 181108 I52 0.3+ 0.1+
180603 C51 0.6+ 0.0 180619 807 0.1- 0.1- 181108 I52 0.0 0.6+
180603 C51 0.9- 0.1- 180828 695 0.3- 0.0 181108 I52 0.3+ 0.0
180603 C51 0.3- 0.4- 180828 695 0.0 0.5+ 181108 I52 0.2+ 0.0
180605 807 0.1+ 0.0 180828 695 1.2- 0.9+ 181121 695 0.1- 0.2+
180605 807 0.1- 0.2- 180918 291 0.2- 0.2+ 181121 695 0.2- 0.2+
180605 807 0.3+ 0.1- 180918 291 0.3- 0.1+ 181121 695 0.0 0.2+
180605 807 0.4+ 0.1- 180918 291 0.1+ 0.5+ 181127 291 0.2- 0.1+
180605 807 0.2- 0.2- 181011 T12 0.0 0.0 181127 291 0.2- 0.1+
180607 807 0.0 0.0 181011 T12 0.0 0.0 181127 291 0.1+ 0.3+
180607 807 0.1+ 0.1- 181021 695 0.0 0.0
Ephemeris:
2018 LK2 a,e,i = 1.74, 0.45, 19 q = 0.9596
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 09 18 10 45 39.6 +19 44 06 3.4166 2.5131 22.0 8.6 25.1
...
2019 10 03 11 08 25.9 +17 14 59 3.3289 2.5091 29.7 11.4 25.1
...
2019 10 11 11 20 14.2 +15 56 36 3.2686 2.5050 34.1 12.9 25.1
...
2019 10 17 11 28 55.7 +14 58 36 3.2173 2.5010 37.5 14.0 25.1
2019 10 18 11 30 21.8 +14 49 01 3.2083 2.5003 38.1 14.2 25.1
2019 10 19 11 31 47.6 +14 39 27 3.1992 2.4995 38.6 14.4 25.1
...
2019 10 25 11 40 17.7 +13 42 38 3.1413 2.4946 42.1 15.5 25.1
...
2019 11 02 11 51 23.0 +12 28 37 3.0566 2.4867 46.9 16.9 25.1
...
2019 11 17 12 11 18.7 +10 16 36 2.8768 2.4685 56.3 19.5 25.0
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-U21
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