MPEC 2019-U24 : 2018 YJ
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M.P.E.C. 2019-U24 Issued 2019 October 18, 01:07 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 YJ
Revision to MPEC 2018-Y36
Additional Observations:
K18Y00J C2014 11 17.29600702 00 35.733+20 58 37.24 21.8 GVEU024F51
K18Y00J C2014 11 17.30795002 00 34.745+20 58 35.32 22.4 GVEU024F51
K18Y00J C2014 11 17.31989202 00 33.761+20 58 33.24 22.4 GVEU024F51
K18Y00J C2014 11 19.25312901 58 00.199+20 53 04.03 21.6 GVEU024F51
K18Y00J C2014 11 19.26501601 57 59.236+20 53 01.95 21.8 GVEU024F51
K18Y00J C2014 11 19.27777701 57 58.190+20 53 00.56 22.3 GVEU024F51
K18Y00J C2014 11 20.42465601 56 28.588+20 49 41.09 22.3 GVEU024F51
K18Y00J C2014 11 20.43874401 56 27.481+20 49 38.81 22.3 GVEU024F51
K18Y00J C2014 11 20.45240601 56 26.400+20 49 36.00 22.0 GVEU024F51
K18Y00J C2017 09 24.41584101 14 12.458+01 35 53.91 22.9 GVEU024F51
K18Y00J C2017 09 24.42857101 14 11.722+01 35 51.40 23.3 GVEU024F51
K18Y00J C2017 09 24.44120301 14 11.027+01 35 48.51 23.1 GVEU024F51
K18Y00J C2017 09 24.45388701 14 10.281+01 35 45.78 23.2 GVEU024F51
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
141117 F51 16.3- 14.0- 170924 F51 3.2- 2.3- MPO477910 +0.00 days
Orbital elements:
2018 YJ Earth MOID = 0.0516 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 Veres
M 18.74936 (2000.0) P Q
n 0.28016553 Peri. 153.74289 -0.99041688 -0.02384444
a 2.3130920 Node 26.00284 -0.06853842 -0.77028046
e 0.5586240 Incl. 18.07674 +0.11990369 -0.63725934
P 3.52 H 18.4 G 0.15 U 1
Residuals in seconds of arc
141117 F51 0.0 0.0 181220 F51 0.0 0.0 190119 I52 0.2+ 0.1+
141117 F51 0.1- 0.1+ 181220 F51 0.0 0.0 190119 I52 0.1+ 0.2-
141117 F51 0.1- 0.1- 181220 F51 0.0 0.0 190119 I52 0.2- 0.3+
141119 F51 0.1+ 0.1- 181220 F51 0.1+ 0.0 190208 G40 0.4- 0.1-
141119 F51 0.0 0.2- 181222 695 0.2+ 0.1+ 190208 G40 0.2+ 0.1+
141119 F51 0.3- 0.5+ 181222 695 0.3+ 0.3+ 190208 G40 0.1- 0.0
141120 F51 0.0 0.0 181222 695 0.2+ 0.2+ 190210 G40 0.5+ 0.6+
141120 F51 0.1+ 0.2+ 181224 695 0.2+ 0.3+ 190210 G40 0.4+ 0.4-
141120 F51 0.1+ 0.1- 181224 695 0.3+ 0.3+ 190212 G40 0.5+ 0.2-
170924 F51 0.0 0.0 181224 695 0.1+ 0.3+ 190212 G40 0.3+ 0.1+
170924 F51 0.1- 0.2+ 181226 H21 0.5- 0.2+ 190212 G40 0.5+ 0.0
170924 F51 0.3+ 0.1+ 181226 H21 0.6- 0.3+ 190212 291 0.4+ 0.4+
170924 F51 0.0 0.1+ 181230 291 0.2+ 0.3+ 190212 291 0.2+ 0.2+
181216 G96 0.0 0.7+ 181230 291 0.4+ 0.3+ 190215 A17 0.5- 0.3-
181216 G96 0.1- 0.0 181230 291 0.2+ 0.7+ 190215 A17 0.1- 0.2+
181216 G96 0.1- 0.2+ 181231 291 0.1+ 0.2+ 190215 A17 0.5- 0.3+
181216 G96 0.1+ 0.2+ 181231 291 0.0 0.4+ 190428 807 0.1- 0.0
181217 J95 0.2+ 0.0 181231 291 0.3- 0.3+ 190428 807 0.0 0.1-
181217 J95 0.1+ 0.5- 190101 204 0.1+ 0.1- 190428 807 0.1- 0.0
181217 J95 0.7- 0.1- 190101 204 0.0 0.1+ 190429 807 0.1- 0.0
181217 J95 0.2- 0.1- 190101 204 0.1+ 0.1- 190429 807 0.0 0.0
181217 J95 0.2+ 0.1- 190108 I52 0.0 0.1- 190429 807 0.0 0.0
181217 734 0.1+ 0.0 190108 I52 0.1+ 0.2- 190501 807 0.1+ 0.2+
181217 734 0.2+ 0.2- 190108 I52 0.1- 0.2+ 190501 807 0.1- 0.0
181217 734 0.3+ 0.2- 190108 I52 0.1- 0.0 190501 807 0.1- 0.1-
181218 L01 0.2- 0.0 190117 G96 0.6+ 0.2- 190502 474 0.1- 0.1+
181218 L01 0.1+ 0.3+ 190117 G96 0.1+ 0.1+ 190502 474 0.2- 0.0
181218 L01 0.6- 0.3+ 190117 G96 0.2+ 0.1+ 190502 474 0.1- 0.1-
181218 L01 0.2+ 0.3- 190117 G96 1.3+ 0.2- 190502 474 0.0 0.1+
181219 I52 0.3- 1.2- 190118 T08 0.2+ 0.7- 190503 807 0.2- 0.2+
181219 I52 0.2+ 0.2+ 190118 T08 0.4- 0.8- 190503 807 0.3- 0.0
181219 I52 0.8- 0.5- 190118 T08 0.2- 0.4- 190503 807 0.1- 0.1+
181220 I52 0.3- 0.2- 190118 T08 0.2+ 0.2- 190626 807 0.0 0.0
181220 I52 0.2- 0.1- 190119 695 0.2+ 0.5+ 190626 807 0.1- 0.1-
181220 I52 0.1- 0.2+ 190119 695 0.1- 0.6+ 190626 807 0.3- 0.0
181220 I52 0.1- 0.1+ 190119 I52 0.1- 0.2+
Ephemeris:
2018 YJ a,e,i = 2.31, 0.56, 18 q = 1.0209
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 09 18 18 48 12.3 -45 22 00 1.8894 2.3377 103.5 24.7 22.8
...
2019 10 03 19 06 29.1 -42 43 22 2.1540 2.4295 93.5 24.3 23.1
...
2019 10 11 19 17 17.1 -41 23 43 2.2982 2.4769 88.2 23.8 23.3
...
2019 10 17 19 25 42.9 -40 25 40 2.4070 2.5117 84.3 23.3 23.4
2019 10 18 19 27 08.6 -40 16 06 2.4251 2.5174 83.6 23.2 23.4
2019 10 19 19 28 34.6 -40 06 34 2.4432 2.5232 83.0 23.1 23.4
...
2019 10 25 19 37 17.7 -39 09 56 2.5519 2.5572 79.1 22.5 23.5
...
2019 11 02 19 49 10.2 -37 55 36 2.6958 2.6015 73.9 21.5 23.7
...
2019 11 17 20 11 54.8 -35 38 29 2.9590 2.6817 64.3 19.4 23.9
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-U24
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