MPEC 2019-M103 : 2018 RR2
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M.P.E.C. 2019-M103 Issued 2019 June 29, 00:17 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 RR2
Revision to MPEC 2018-R93
Additional Observations:
K18R02R C2017 09 12.38415 23 05 14.155-29 17 41.49 21.2 GVEM103F51
K18R02R C2017 09 12.39445 23 05 13.884-29 17 41.28 21.7 GVEM103F51
K18R02R C2017 09 12.40475 23 05 13.615-29 17 40.92 21.5 GVEM103F51
K18R02R C2017 09 12.41505 23 05 13.357-29 17 40.87 21.5 GVEM103F51
K18R02R C2018 08 10.56588 00 01 22.138-09 44 57.31 20.9 GVEM103F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, B. Gibson,
T. Goggia, T. Lowe, E. Magnier, N. Primak, A. Schultz, J. Thiel, S. Watters,
M. Willman. Measurers S. Chastel, M. Huber, R. Jedicke, 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
170912 F51 19.7+ 7.2+ 180810 F51 0.1+ 0.0+ MPO473498 -0.13 days
Orbital elements:
2018 RR2
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 359.12092 (2000.0) P Q
n 0.00993211 Peri. 7.61540 +0.98827851 -0.15177068
a 21.4342496 Node 1.46096 +0.08191929 +0.43618742
e 0.6412794 Incl. 40.23815 +0.12882085 +0.88696460
P 99.23 H 12.1 G 0.15 U 1
Residuals in seconds of arc
170912 F51 0.0 0.0 180814 F51 0.0 0.0 180914 G96 0.1+ 0.0
170912 F51 0.0 0.0 180908 D29 0.1- 0.2- 181003 F52 0.1+ 0.1-
170912 F51 0.0 0.1+ 180908 D29 0.4+ 0.3- 181003 F52 0.1+ 0.1-
170912 F51 0.1+ 0.1- 180908 D29 0.1- 0.1- 181003 F52 0.0 0.2-
180810 F51 0.1- 0.0 180909 I52 0.2- 0.3- 181003 F52 0.0 0.0
180811 F51 0.0 0.1+ 180909 I52 0.2+ 0.2- 181030 W49 1.2- 1.1+
180811 F51 0.0 0.1+ 180909 I52 0.2- 0.3- 181031 W49 0.8+ 1.1+
180811 F51 0.0 0.1+ 180909 I52 0.1+ 0.0 181031 W49 (1.3+ 2.2+)
180814 F51 0.0 0.0 180914 G96 0.0 0.5- 181103 F52 0.1+ 0.3-
180814 F51 0.1- 0.0 180914 G96 0.3- 0.2+ 181103 F52 0.3+ 0.7-
180814 F51 0.1+ 0.1- 180914 G96 0.2- 0.2- 181103 F52 0.0 0.3-
Ephemeris:
2018 RR2 a,e,i = 21.43, 0.64, 40 q = 7.6889
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 05 30 00 36 44.2 +06 48 30 8.1990 7.6939 57.0 6.3 21.6
...
2019 06 14 00 41 10.7 +07 57 16 7.9816 7.6915 69.9 7.1 21.6
...
2019 06 22 00 42 59.7 +08 31 32 7.8575 7.6906 76.9 7.4 21.5
...
2019 06 28 00 44 04.7 +08 56 01 7.7622 7.6900 82.2 7.5 21.5
2019 06 29 00 44 14.0 +08 59 59 7.7462 7.6900 83.1 7.5 21.5
2019 06 30 00 44 23.0 +09 03 55 7.7301 7.6899 84.0 7.6 21.5
...
2019 07 06 00 45 07.3 +09 26 51 7.6335 7.6895 89.4 7.6 21.5
...
2019 07 14 00 45 40.9 +09 55 27 7.5050 7.6891 96.6 7.5 21.4
...
2019 07 29 00 45 22.0 +10 42 32 7.2720 7.6889 110.6 7.1 21.4
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-M103
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