MPEC 2019-A201: 2017 XB2
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M.P.E.C. 2019-A201 Issued 2019 Jan. 12, 23:42 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 XB2
Revision to MPEC 2017-X111
Additional Observations:
K17X02B C2010 12 25.65804813 06 03.564+67 31 18.91 21.8 GVEA201F51
K17X02B C2010 12 25.66592413 06 04.096+67 31 22.73 22.2 GVEA201F51
K17X02B C2011 01 22.59890512 45 46.331+73 22 12.77 20.5 GVEA201F51
K17X02B C2011 01 22.60622512 45 44.400+73 22 20.08 20.6 GVEA201F51
K17X02B C2011 03 17.35420706 56 14.535+30 35 05.00 19.1 GVEA201F51
K17X02B C2011 03 17.37377706 56 13.843+30 33 10.05 19.5 GVEA201F51
K17X02B C2011 03 17.38794606 56 13.408+30 31 47.38 18.9 GVEA201F51
K17X02B KC2015 08 09.51987222 58 25.136-16 22 56.96 22.5 GVEA201F51
K17X02B C2015 08 10.47015722 56 55.245-16 21 53.88 21.9 GVEA201F51
K17X02B C2015 08 10.48203322 56 54.097-16 21 52.86 21.3 GVEA201F51
K17X02B C2015 08 10.49393922 56 52.928-16 21 52.18 22.2 GVEA201F51
K17X02B C2015 08 10.50584322 56 51.769-16 21 51.51 21.5 GVEA201F51
K17X02B C2015 09 09.39425022 08 12.004-15 16 34.69 22.4 GVEA201F51
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
101225 F51 2.2+ 18.5+ 150909 F51 1.0- 2.5- MPO451932 +0.00011 day
Orbital elements:
2017 XB2 Earth MOID = 0.2019 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 114.64797 (2000.0) P Q
n 0.28554664 Peri. 212.81963 -0.92280069 +0.26761166
a 2.2839400 Node 337.00642 +0.13159608 -0.45720496
e 0.5026394 Incl. 45.19818 -0.36210683 -0.84814364
P 3.45 H 18.4 G 0.15 U 0
Residuals in seconds of arc
101225 F51 0.0 0.3- 180112 703 0.0 0.2- 180211 160 0.0 0.0
101225 F51 0.0 0.0 180112 I52 0.1- 0.0 180211 T08 0.3- 0.1+
110122 F51 0.1- 0.1- 180112 I52 0.1+ 0.1+ 180211 T08 0.2+ 0.2+
110122 F51 0.2+ 0.0 180112 I52 0.0 0.1- 180211 T08 0.3+ 0.2-
110317 F51 0.0 0.1- 180112 I52 0.1- 0.1+ 180212 F51 0.0 0.0
110317 F51 0.1- 0.1- 180122 G96 0.1- 0.2- 180212 F51 0.0 0.0
110317 F51 0.6+ 0.5+ 180122 G96 0.0 0.0 180212 F51 0.0 0.0
150809 F51 0.2- 0.3- 180122 G96 0.0 0.1+ 180212 F51 0.0 0.0
150810 F51 0.1+ 0.0 180122 G96 0.1- 0.1- 180214 K74 0.0 0.5+
150810 F51 0.2+ 0.2+ 180126 J43 0.1+ 0.2+ 180214 K74 0.0 0.1-
150810 F51 0.0 0.1+ 180126 J43 0.1- 0.3- 180214 K74 0.2+ 0.2-
150810 F51 0.0 0.0 180126 J43 0.0 0.1- 180214 K74 0.2+ 0.2+
150909 F51 0.1+ 0.2- 180126 J43 0.1+ 0.2+ 180214 K74 0.0 0.2-
171208 G96 0.8- 0.7+ 180126 703 0.7- 0.4- 180214 K74 0.3- 0.0
171208 G96 1.2- 0.4- 180126 703 0.5- 0.5+ 180214 K74 0.1+ 0.1+
171208 G96 0.8- 0.4+ 180126 703 0.3- 0.1- 180214 K74 0.0 0.5+
171208 G96 0.4- 0.6- 180126 703 0.2- 0.2- 180215 T08 0.5+ 0.1+
171208 G96 1.5- 0.4+ 180127 691 0.0 0.1+ 180215 T08 0.7+ 0.3-
171208 G96 1.4- 1.0- 180127 691 0.5+ 0.3+ 180215 T08 0.1+ 0.2-
171208 G96 0.2+ 0.5- 180127 691 0.4+ 0.1+ 180215 T08 0.3- 0.7-
171209 H01 0.1+ 0.0 180128 691 0.1+ 0.3+ 180223 W88 0.0 0.6-
171209 H01 0.1+ 0.0 180128 691 0.1+ 0.2+ 180223 W88 0.2+ 0.1+
171209 H01 0.1- 0.0 180128 691 0.1+ 0.2+ 180223 W88 0.3- 0.0
171209 H01 0.2+ 0.0 180205 I52 0.1- 0.1- 180223 W88 0.2- 0.4-
171210 H01 0.1+ 0.1+ 180205 I52 0.2+ 0.1- 180223 W88 0.6- 0.4-
171210 H01 0.1+ 0.0 180205 I52 0.2- 1.0- 180224 807 0.2- 0.1-
171210 H01 0.1+ 0.0 180205 I52 0.0 0.1- 180224 807 0.2+ 0.2-
171210 H01 0.0 0.1+ 180205 H21 0.1+ 0.2- 180224 807 0.1+ 0.1-
171213 033 0.0 0.1+ 180205 H21 0.1- 0.0 180224 807 0.1- 0.2+
171213 033 0.1- 0.3+ 180205 H21 0.1+ 0.2- 180224 807 0.0 0.0
171213 033 0.0 0.1- 180206 I52 0.1+ 0.6- 180224 807 0.2+ 0.0
171213 033 0.1+ 0.1+ 180206 I52 0.1- 0.1- 180224 W88 0.1- 0.1+
171213 033 0.1- 0.1+ 180206 I52 0.1+ 0.1+ 180224 W88 0.1+ 0.0
171213 033 0.1+ 0.2- 180206 I52 0.0 0.1+ 180224 W88 0.3+ 0.3-
171213 033 0.2+ 0.0 180207 H36 0.3- 0.3- 180224 W88 0.2+ 0.1+
171213 033 0.0 0.1+ 180207 H36 0.1+ 0.1+ 180303 W88 0.5- 0.5-
171213 I52 0.1- 0.2- 180207 691 0.1+ 0.3+ 180303 W88 0.1- 0.1+
171213 I52 0.3+ 0.3+ 180207 H36 0.0 0.0 180303 W88 0.4- 0.3-
171213 I52 0.4- 0.4- 180207 691 0.0 0.2+ 180310 474 0.1+ 0.1+
171213 926 0.2+ 0.3+ 180207 691 0.2+ 0.2+ 180310 474 0.0 0.0
171213 I52 0.3+ 0.3- 180207 T08 0.2- 0.4+ 180310 474 0.1- 0.1-
171213 926 0.1- 0.7+ 180207 T08 0.8- 0.1+ 180323 I47 0.1+ 0.2-
171213 926 0.3+ 1.0+ 180207 T08 0.4- 0.3+ 180323 I47 0.4- 1.1-
171214 I52 0.1+ 0.3+ 180207 T08 0.1+ 0.0 180405 807 0.6+ 0.4-
171214 I52 0.0 0.4- 180208 691 0.2- 0.2+ 180405 807 0.1+ 0.2-
171214 I52 0.1- 0.0 180208 691 0.0 0.3+ 180405 807 0.1+ 0.0
171214 I52 0.5+ 0.1- 180208 691 0.3- 0.0 180512 474 0.2+ 0.1-
171222 V06 0.2+ 0.2+ 180209 703 0.3+ 0.2- 180512 474 0.2+ 0.1-
171222 V06 0.8+ 0.4- 180209 703 0.5- 0.3- 180512 474 0.3+ 0.3+
171222 V06 0.6+ 0.3- 180209 703 0.3- 0.2+ 180717 474 0.5+ 0.3+
180112 703 0.9+ 1.2+ 180211 160 0.1- 0.4- 180717 474 0.3+ 0.5+
180112 703 0.5- 0.4+ 180211 160 0.5- 0.2+ 180717 474 0.2- 0.0
Ephemeris:
2017 XB2 a,e,i = 2.28, 0.50, 45 q = 1.1359
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 12 13 20 56 01.8 -26 44 29 3.0997 2.5623 48.9 16.8 23.8
...
2018 12 28 21 16 22.3 -23 17 46 3.3251 2.6348 39.0 13.6 23.9
...
2019 01 05 21 27 00.7 -21 31 39 3.4336 2.6721 33.7 11.8 23.9
...
2019 01 11 21 34 53.4 -20 13 34 3.5089 2.6994 29.7 10.4 23.9
2019 01 12 21 36 11.6 -20 00 40 3.5209 2.7039 29.1 10.2 23.9
2019 01 13 21 37 29.7 -19 47 47 3.5327 2.7084 28.4 9.9 23.9
...
2019 01 19 21 45 14.4 -18 31 09 3.6004 2.7351 24.4 8.6 24.0
...
2019 01 27 21 55 24.2 -16 50 24 3.6813 2.7697 19.1 6.7 23.9
...
2019 02 11 22 13 55.7 -13 45 09 3.8022 2.8322 9.1 3.2 23.9
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-A201
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