MPEC 2019-F115: 2018 RA5
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M.P.E.C. 2019-F115 Issued 2019 Mar. 28, 01:36 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 RA5
Revision to MPEC 2018-R137
Additional Observations:
K18R05A C2009 09 17.41854922 45 19.302+03 32 57.16 21.8 GVEF115F51
K18R05A C2009 09 17.42121122 45 19.015+03 32 53.27 21.9 GVEF115F51
K18R05A C2009 09 17.42728522 45 18.369+03 32 43.92 21.8 GVEF115F51
K18R05A C2009 09 17.42984422 45 18.092+03 32 39.95 21.5 GVEF115F51
K18R05A C2014 08 25.60290301 58 33.979+01 00 12.83 22.3 GVEF115F51
K18R05A C2014 08 25.61052501 58 33.808+01 00 05.42 22.5 GVEF115F51
K18R05A C2014 08 25.61814101 58 33.670+00 59 58.06 22.8 GVEF115F51
K18R05A C2014 08 27.58604301 57 57.627+00 26 51.87 23.8 GVEF115F51
K18R05A C2014 08 27.59763801 57 57.356+00 26 39.58 22.5 GVEF115F51
K18R05A C2014 08 27.60924301 57 57.085+00 26 27.91 22.8 GVEF115F51
K18R05A C2014 08 27.62084601 57 56.833+00 26 15.66 22.7 GVEF115F51
K18R05A C2014 10 03.42620101 16 19.821-14 13 03.32 21.2 GVEF115F51
K18R05A C2014 10 03.43946101 16 18.291-14 13 24.60 21.4 GVEF115F51
K18R05A C2014 10 03.46595101 16 15.241-14 14 08.04 22.8 GVEF115F51
K18R05A C2014 11 24.25499623 52 37.382-27 02 46.27 22.6 GVEF115F51
K18R05A C2014 11 24.26534223 52 36.962-27 02 47.02 22.1 GVEF115F51
K18R05A C2014 11 24.28603023 52 36.092-27 02 48.76 22.1 GVEF115F51
K18R05A C2014 11 26.20464323 51 28.153-27 04 48.24 22.3 GVEF115F51
K18R05A C2014 11 26.23622923 51 26.981-27 04 49.70 22.6 GVEF115F51
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, reference and Delta-T
090917 F51 71.2+ 22.5- 141126 F51 15.9+ 32.7- MPO461091 +0.0019 day
Orbital elements:
2018 RA5 Earth MOID = 0.5298 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 235.18052 (2000.0) P Q
n 0.64590698 Peri. 3.31161 -0.99924245 +0.00841236
a 1.3254278 Node 176.43031 +0.00110208 -0.96984902
e 0.7131442 Incl. 37.60874 +0.03890124 +0.24356132
P 1.53 H 19.4 G 0.15 U 2
Residuals in seconds of arc
090917 F51 0.1+ 0.3- 180910 G96 0.2+ 0.1- 180912 I52 0.0 0.1-
090917 F51 0.0 0.1- 180910 I52 0.2- 0.1- 180913 I52 0.0 0.4-
090917 F51 0.0 0.0 180910 I52 0.1+ 0.6+ 180913 I52 0.0 0.1-
090917 F51 0.1- 0.1+ 180910 I52 1.1+ 1.9+ 180913 I52 0.7- 0.1-
140825 F51 0.4+ 0.1- 180910 L01 0.5- 0.0 180913 I52 0.4- 0.5-
140825 F51 0.1- 0.1- 180910 L01 0.1+ 0.1+ 180915 I52 0.6+ 0.3-
140825 F51 0.1- 0.1+ 180911 I52 0.2+ 0.0 180915 I52 0.2- 0.0
140827 F51 0.0 0.1+ 180911 I52 0.2- 0.3- 180918 I52 0.4- 0.4-
140827 F51 0.1- 0.2- 180911 H21 0.1- 0.0 180918 I52 0.0 0.4+
140827 F51 0.1- 0.1+ 180911 I52 0.2+ 0.1- 180918 I52 0.3+ 0.1+
140827 F51 0.1+ 0.1- 180911 I52 0.5+ 0.0 180930 H21 0.1+ 0.1+
141003 F51 0.1- 0.0 180911 H21 0.0 0.1+ 180930 H21 0.3+ 0.0
141003 F51 0.1- 0.3+ 180911 H21 0.0 0.0 181001 H21 0.0 0.6+
141003 F51 0.1- 0.0 180911 734 0.4- 0.6- 181001 H21 0.0 0.3+
141124 F51 0.0 0.0 180911 734 0.8- 0.7- 181001 H21 0.2- 0.0
141124 F51 0.1+ 0.1+ 180911 734 0.5+ 0.7+ 181006 H21 0.2+ 0.4+
141124 F51 0.1- 0.0 180911 033 0.1- 0.0 181006 H21 0.3+ 0.0
141126 F51 0.4+ 0.1- 180911 033 0.1+ 0.1+ 181006 H21 0.2+ 0.4+
141126 F51 0.2- 0.2- 180911 033 0.0 0.1+ 181106 807 0.3+ 0.0
180910 G96 0.1+ 0.0 180911 033 0.2+ 0.1- 181106 807 0.1+ 0.1+
180910 G96 0.1+ 0.5+ 180912 I52 0.2- 0.1- 181106 807 0.1+ 0.5+
180910 G96 0.4- 0.6- 180912 I52 0.5- 0.3-
Ephemeris:
2018 RA5 a,e,i = 1.33, 0.71, 38 q = 0.3802
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 02 26 23 44 49.1 -05 03 32 3.1785 2.2574 17.9 7.8 24.2
...
2019 03 13 00 07 36.7 -03 36 36 3.2117 2.2371 9.4 4.1 24.1
...
2019 03 21 00 19 57.7 -02 49 32 3.2108 2.2224 5.8 2.6 23.9
...
2019 03 27 00 29 19.4 -02 14 20 3.2018 2.2096 5.0 2.2 23.9
2019 03 28 00 30 53.5 -02 08 29 3.1996 2.2073 5.1 2.3 23.9
2019 03 29 00 32 27.8 -02 02 39 3.1972 2.2050 5.2 2.4 23.9
...
2019 04 04 00 41 57.1 -01 27 54 3.1787 2.1902 7.2 3.3 23.9
...
2019 04 12 00 54 45.8 -00 42 34 3.1432 2.1679 11.0 5.1 24.0
...
2019 04 27 01 19 21.0 +00 37 34 3.0446 2.1186 19.0 8.9 24.0
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-F115
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