MPEC 2018-Y83 : 2018 AP18
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M.P.E.C. 2018-Y83 Issued 2018 Dec. 27, 19:48 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 AP18
Revision to MPEC 2018-B118
Additional Observations:
K18A18P C2015 01 20.43840710 43 47.452+10 56 07.91 22.0 GVEY083F51
K18A18P C2015 01 20.45181910 43 46.713+10 56 12.33 22.0 GVEY083F51
K18A18P C2015 01 20.46520010 43 45.921+10 56 16.01 22.3 GVEY083F51
K18A18P C2015 01 20.47864610 43 45.174+10 56 19.90 22.5 GVEY083F51
K18A18P C2015 01 22.45059810 41 53.627+11 05 59.10 22.6 GVEY083F51
K18A18P C2015 01 22.46418810 41 52.832+11 06 03.37 22.0 GVEY083F51
K18A18P C2015 01 22.49153810 41 51.205+11 06 11.62 22.1 GVEY083F51
K18A18P C2015 02 17.38566410 11 46.583+13 31 18.96 22.1 GVEY083F51
K18A18P C2015 02 17.39845110 11 45.606+13 31 23.29 22.3 GVEY083F51
K18A18P C2015 02 17.41128810 11 44.610+13 31 27.47 22.2 GVEY083F51
K18A18P C2015 02 17.42416610 11 43.614+13 31 32.03 22.1 GVEY083F51
K18A18P KC2016 01 08.63231512 26 22.710-05 43 34.70 22.8 GVEY083F51
K18A18P C2017 12 28.56054310 59 52.794+09 20 37.04 22.8 GVEY083F51
K18A18P C2018 02 12.40454510 20 01.177+12 42 42.34 22.6 GVEY083F51
K18A18P C2018 02 12.42796310 19 59.401+12 42 50.41 22.2 GVEY083F51
K18A18P C2018 02 12.43976410 19 58.505+12 42 54.39 22.1 GVEY083F51
K18A18P C2018 03 07.24484409 52 30.420+14 39 51.03 23.4 GVEY083F51
K18A18P C2018 03 07.26810209 52 28.894+14 39 57.16 23.0 GVEY083F51
K18A18P C2018 03 07.27970809 52 28.138+14 40 00.15 23.4 GVEY083F51
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
150120 F51 0.04- 0.03+ 180307 F51 1.7- 1.4+ MPO438049 -0.60 day
Orbital elements:
2018 AP18 Earth MOID = 0.1607 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 252.41536 (2000.0) P Q
n 0.33029725 Peri. 7.17565 +0.96755057 +0.24471329
a 2.0726823 Node 338.34226 -0.23947521 +0.80863178
e 0.7678550 Incl. 9.81908 -0.08060717 +0.53500472
P 2.98 H 17.7 G 0.15 U 2
Residuals in seconds of arc
150120 F51 0.0 0.2- 180115 F51 0.1+ 0.2+ 180205 695 0.1+ 0.1-
150120 F51 0.3+ 0.3+ 180115 F51 0.0 0.0 180205 695 0.1+ 0.1+
150120 F51 0.3- 0.1+ 180115 F51 0.0 0.3+ 180205 695 0.0 0.1+
150120 F51 0.1- 0.1+ 180115 F51 0.0 0.1- 180212 F51 0.1- 0.1+
150122 F51 0.1- 0.2- 180116 568 0.0 0.0 180212 F51 0.0 0.0
150122 F51 0.0 0.0 180116 568 0.0 0.0 180212 F51 0.1+ 0.1-
150122 F51 0.1- 0.0 180116 568 0.0 0.0 180213 H21 0.0 0.6-
150217 F51 0.1+ 0.0 180119 568 0.0 0.0 180213 H21 0.1+ 0.7-
150217 F51 0.2+ 0.0 180119 568 0.1- 0.1+ 180213 H21 0.4- 0.6-
150217 F51 0.1+ 0.1- 180119 568 0.0 0.1+ 180307 F51 0.3- 0.3-
150217 F51 0.0 0.1+ 180123 807 0.2+ 0.2- 180307 F51 0.1- 0.0
160108 F51 0.0 0.1+ 180123 807 0.2+ 0.0 180307 F51 0.0 0.1+
171228 F51 0.1+ 0.1- 180123 807 0.0 0.1-
Ephemeris:
2018 AP18 a,e,i = 2.07, 0.77, 10 q = 0.4812
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 11 27 12 10 51.0 -03 09 03 4.0040 3.6246 60.7 13.7 24.3
...
2018 12 12 12 19 30.8 -04 23 04 3.7603 3.6053 73.4 15.2 24.2
...
2018 12 20 12 23 06.6 -04 57 04 3.6219 3.5933 80.5 15.7 24.1
...
2018 12 26 12 25 15.4 -05 19 37 3.5156 3.5837 86.0 15.9 24.1
2018 12 27 12 25 33.8 -05 23 06 3.4978 3.5820 86.9 15.9 24.1
2018 12 28 12 25 51.4 -05 26 30 3.4799 3.5803 87.8 15.9 24.0
...
2019 01 03 12 27 17.1 -05 45 10 3.3722 3.5698 93.5 16.0 24.0
...
2019 01 11 12 28 14.5 -06 04 52 3.2288 3.5548 101.3 15.7 23.9
...
2019 01 26 12 26 44.1 -06 23 16 2.9689 3.5235 116.8 14.4 23.6
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-Y83
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