MPEC 2019-A200: 2017 WN28
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M.P.E.C. 2019-A200 Issued 2019 Jan. 12, 23:39 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
2017 WN28
Revision to MPEC 2017-X02
Additional Observations:
K17W28N C2014 02 26.47959810 44 30.836+04 00 49.80 22.4 GVEA200F51
K17W28N C2014 02 26.49113810 44 29.836+04 00 53.16 22.5 GVEA200F51
K17W28N C2014 02 26.50269510 44 28.850+04 00 56.45 23.4 GVEA200F51
K17W28N C2016 01 31.39695809 26 59.617+19 01 05.07 21.9 GVEA200F51
K17W28N C2016 01 31.41180609 26 58.140+19 01 08.04 22.1 GVEA200F51
K17W28N KC2016 02 03.39042109 22 12.206+19 10 56.40 21.4 GVEA200F51
K17W28N C2016 02 05.53760809 18 44.905+19 17 31.87 22.3 GVEA200F51
K17W28N C2016 02 05.55014909 18 43.676+19 17 33.68 22.4 GVEA200F51
K17W28N C2016 02 05.56262609 18 42.442+19 17 35.93 22.8 GVEA200F51
K17W28N C2016 02 05.57512509 18 41.231+19 17 37.86 22.2 GVEA200F51
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
140226 F51 3.4- 1.8+ 160205 F51 1.8- 0.8+ MPO441101 -0.0023 day
Orbital elements:
2017 WN28 PHA, Earth MOID = 0.0029 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 284.47103 (2000.0) P Q
n 0.43576221 Peri. 11.36646 +0.92937215 +0.35679434
a 1.7230703 Node 327.22743 -0.35091584 +0.77431694
e 0.4142033 Incl. 10.07395 -0.11456643 +0.52261943
P 2.26 H 19.9 G 0.15 U 2
Residuals in seconds of arc
140226 F51 0.1- 0.0 171125 568 0.1+ 0.2- 180118 T12 0.0 0.0
140226 F51 0.0 0.1+ 171125 568 0.1+ 0.2- 180118 T12 0.1+ 0.0
140226 F51 0.3+ 0.1+ 171125 568 0.1+ 0.2- 180118 T12 0.0 0.0
160131 F51 0.0 0.2- 171201 H21 0.2+ 0.1- 180118 291 0.0 0.1+
160131 F51 0.3- 0.3- 171201 H21 0.2+ 0.3- 180118 291 0.1- 0.1+
160203 F51 0.1+ 0.1- 171201 H21 0.0 0.5- 180126 H21 0.2- 0.9-
160205 F51 0.0 0.3+ 171209 291 0.4+ 0.6+ 180126 H21 0.0 1.0-
160205 F51 0.1+ 0.0 171209 291 0.3- 0.1- 180126 H21 0.2+ 0.9-
160205 F51 0.0 0.1+ 171212 291 0.7- 0.1+ 180204 695 0.1+ 0.3+
160205 F51 0.2+ 0.0 171212 291 0.2- 0.1- 180204 695 0.2+ 0.3+
171113 F51 0.0 0.0 171212 291 0.1+ 0.3+ 180205 695 0.0 0.3+
171113 F51 0.0 0.0 171219 291 0.0 0.4+ 180205 695 0.2- 0.4+
171113 F51 0.0 0.1+ 171219 291 0.4+ 0.5+ 180205 695 0.2- 0.7+
171113 F51 0.0 0.0 171219 291 0.2- 0.2+ 180304 695 0.4- 0.6+
171124 F51 0.0 0.0 180105 695 0.3+ 0.1+ 180304 695 0.3- 0.4+
171124 F51 0.1- 0.0 180105 695 0.1+ 0.0
171124 F51 0.0 0.1- 180105 695 0.1- 0.1+
Ephemeris:
2017 WN28 a,e,i = 1.72, 0.41, 10 q = 1.0094
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 12 13 13 10 53.5 -12 38 54 2.6601 2.3230 59.6 21.4 24.9
...
2018 12 28 13 31 00.2 -15 28 35 2.4431 2.2880 69.3 23.7 24.8
...
2019 01 05 13 41 13.8 -16 57 47 2.3213 2.2673 74.6 24.7 24.7
...
2019 01 11 13 48 35.7 -18 04 02 2.2280 2.2509 78.6 25.4 24.6
2019 01 12 13 49 47.6 -18 15 01 2.2123 2.2481 79.3 25.5 24.6
2019 01 13 13 50 58.9 -18 26 00 2.1966 2.2453 80.0 25.6 24.5
...
2019 01 19 13 57 55.1 -19 31 28 2.1017 2.2278 84.1 26.1 24.4
...
2019 01 27 14 06 33.5 -20 57 58 1.9743 2.2034 89.8 26.5 24.3
...
2019 02 11 14 20 16.9 -23 37 41 1.7359 2.1539 101.0 26.7 24.0
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-A200
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