MPEC 2019-F49 : 2017 WC15
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M.P.E.C. 2019-F49 Issued 2019 Mar. 21, 10:43 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 WC15
Revision to MPEC 2017-W170
Additional Observations:
K17W15C C2015 07 26.58565203 54 20.958+13 31 44.48 22.0 GVEF049F51
K17W15C C2015 07 26.59089403 54 21.368+13 31 50.07 22.7 GVEF049F51
K17W15C C2015 07 26.59616403 54 21.784+13 31 55.53 22.3 GVEF049F51
K17W15C C2015 07 26.60137603 54 22.224+13 32 01.25 22.1 GVEF049F51
K17W15C C2015 08 21.60893404 22 26.287+21 06 18.36 23.6 GVEF049F51
K17W15C C2017 06 22.26984610 17 37.413+08 06 28.74 20.9 GVEF049F51
K17W15C C2017 06 22.27842810 17 37.948+08 06 04.20 20.9 GVEF049F51
K17W15C C2017 06 24.26778510 19 47.166+06 30 33.89 21.6 GVEF049F51
K17W15C C2017 06 24.27630410 19 47.713+06 30 08.99 21.2 GVEF049F51
K17W15C C2017 06 25.27008210 20 52.333+05 42 11.92 21.4 GVEF049F51
K17W15C C2017 06 25.28185110 20 53.067+05 41 37.72 21.5 GVEF049F51
K17W15C C2017 06 26.26828110 21 57.267+04 53 52.80 21.5 GVEF049F51
K17W15C C2017 06 26.27679410 21 57.810+04 53 27.30 21.9 GVEF049F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe,
E. Magnier, A. Schultz, M. Willman. Measurers S. Chastel, J. Fairlamb,
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
150726 F51 0.38- 2.03- 170626 F51 0.16- 0.36+ MPO435150 -7.2 day
Orbital elements:
2017 WC15 PHA, Earth MOID = 0.0424 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 267.33689 (2000.0) P Q
n 0.42492194 Peri. 243.06493 -0.01207235 +0.95207107
a 1.7522522 Node 31.32199 -0.57276843 +0.24396235
e 0.5086994 Incl. 36.01092 -0.81962832 -0.18450761
P 2.32 H 19.3 G 0.15 U 3
Residuals in seconds of arc
150726 F51 0.1- 0.2+ 171123 474 0.5- 1.0+ 171126 V06 0.0 0.3-
150726 F51 0.1- 0.1+ 171123 474 0.1- 0.1- 171126 V06 0.3+ 0.1-
150726 F51 0.1- 0.1- 171123 474 0.7+ 0.2- 171126 V06 0.7+ 0.4-
150726 F51 0.4+ 0.0 171123 474 0.2+ 0.3- 171126 V06 0.7+ 0.3-
150821 F51 0.0 0.2- 171123 474 0.1+ 0.8- 171205 F51 0.1- 0.8-
171105 F51 0.1+ 0.0 171123 474 0.1+ 0.2- 171205 F51 0.3- 0.0
171105 F51 0.0 0.0 171124 G96 0.7+ 0.7- 171205 F51 0.1- 0.1+
171105 F51 0.2+ 0.1- 171124 G96 0.1+ 0.4- 171205 F51 0.2- 0.3+
171123 G96 0.5- 0.5- 171124 G96 0.4- 0.6+ 171223 T14 0.0 0.0
171123 G96 0.0 1.0+ 171124 G96 0.0 0.4- 171223 T14 0.1+ 0.0
171123 G96 0.6- 0.7+ 171124 807 0.2+ 0.2- 171223 T14 0.0 0.0
171123 G96 1.0- 0.1+ 171124 807 0.3+ 0.3- 171224 T14 0.0 0.0
171123 G96 0.3- 0.7- 171124 807 0.2+ 0.2- 171224 T14 0.0 0.0
171123 G96 0.0 0.5+ 171125 G96 (2.0- 3.1+) 171224 T14 0.0 0.0
171123 G96 0.1- 1.6+ 171125 G96 0.5+ 0.4-
171123 G96 0.2- 0.9+ 171125 G96 0.7+ 0.5-
Ephemeris:
2017 WC15 a,e,i = 1.75, 0.51, 36 q = 0.8609
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 02 19 06 17 12.0 +72 03 02 1.9033 2.4342 110.6 22.3 23.7
...
2019 03 06 06 08 38.7 +68 28 09 1.9821 2.3856 101.4 24.1 23.8
...
2019 03 14 06 12 11.8 +66 29 23 2.0294 2.3575 96.4 24.8 23.8
...
2019 03 20 06 17 25.4 +65 00 49 2.0660 2.3354 92.7 25.2 23.9
2019 03 21 06 18 28.2 +64 46 08 2.0721 2.3316 92.1 25.3 23.9
2019 03 22 06 19 33.6 +64 31 28 2.0782 2.3278 91.5 25.3 23.9
...
2019 03 28 06 26 57.8 +63 04 01 2.1152 2.3046 87.8 25.6 23.9
...
2019 04 05 06 38 45.6 +61 08 35 2.1639 2.2723 83.1 25.9 23.9
...
2019 04 20 07 05 04.5 +57 33 50 2.2503 2.2074 74.6 26.0 24.0
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-F49
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