MPEC 2019-O62 : 2018 WJ1
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2019-O61
Read MPEC 2019-O63
M.P.E.C. 2019-O62 Issued 2019 July 25, 11:39 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
2018 WJ1
Revision to MPEC 2018-W68
Additional Observations:
K18W01J C2013 12 22.30321100 52 20.483+21 27 21.89 22.4 GVEO062F51
K18W01J C2013 12 22.31406200 52 20.850+21 27 23.66 22.7 GVEO062F51
K18W01J C2014 02 25.25715202 55 55.264+29 37 14.72 22.0 GVEO062F51
K18W01J C2014 02 25.26278602 55 56.320+29 37 18.15 20.5 GVEO062F51
K18W01J C2015 07 24.48360122 59 49.930-18 51 50.84 22.0 GVEO062F51
K18W01J C2015 07 24.50757022 59 48.882-18 51 57.63 22.0 GVEO062F51
K18W01J C2015 08 12.46557922 41 31.805-20 33 03.70 23.3 GVEO062F51
K18W01J C2015 08 12.50132222 41 29.080-20 33 15.31 23.4 GVEO062F51
K18W01J KC2015 10 03.29354621 41 24.559-21 35 52.66 23.9 GVEO062F51
K18W01J C2018 12 14.30828701 46 26.275+34 56 28.43 20.5 GVEO062F51
K18W01J C2018 12 21.39303001 43 41.114+34 35 47.18 21.1 GVEO062F51
K18W01J C2018 12 21.40462701 43 41.003+34 35 45.28 22.1 GVEO062F51
K18W01J C2018 12 23.39324501 43 35.131+34 30 52.01 21.9 GVEO062F51
K18W01J C2018 12 23.40233301 43 35.072+34 30 50.39 21.9 GVEO062F51
K18W01J C2018 12 23.41142401 43 35.082+34 30 49.18 21.5 GVEO062F51
K18W01J C2018 12 23.42050301 43 35.075+34 30 47.23 22.2 GVEO062F51
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
131222 F51 10.2- 11.2- 181223 F51 0.5- 0.0- MPO467253 0.00 days
Orbital elements:
2018 WJ1 Earth MOID = 0.2597 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 12.11711 (2000.0) P Q
n 0.39937048 Peri. 135.76235 -0.77878659 -0.62702435
a 1.8262157 Node 5.49877 +0.50975426 -0.64952456
e 0.3330965 Incl. 10.95991 +0.36557084 -0.43006780
P 2.47 H 20.2 G 0.15 U 2
Residuals in seconds of arc
131222 F51 0.3- 0.1+ 181105 F52 0.0 0.1- 181221 F51 0.4- 0.0
131222 F51 0.1- 0.1+ 181128 G96 0.1+ 0.3- 181221 F51 0.2- 0.3+
140225 F51 0.2- 0.4- 181128 G96 0.1+ 0.4+ 181223 F51 0.2+ 0.1-
140225 F51 0.4+ 0.3+ 181128 G96 0.1- 0.1+ 181223 F51 0.3- 0.2-
150724 F51 0.3+ 0.1+ 181128 G96 0.2- 0.3+ 181223 F51 0.1+ 0.2+
150724 F51 0.2- 0.3+ 181128 H01 0.1+ 0.2- 181223 F51 0.2+ 0.1-
150812 F51 0.1+ 0.0 181128 H01 0.3+ 0.1- 190104 G96 0.0 0.2+
150812 F51 0.1- 0.1- 181128 H01 0.1+ 0.0 190104 G96 0.1- 0.2+
151003 F51 0.2- 0.2- 181128 H01 0.1+ 0.2+ 190104 G96 0.0 0.2-
181003 F52 0.1+ 0.1+ 181128 I52 0.1+ 0.2- 190104 G96 0.5- 0.5+
181003 F52 0.2+ 0.1+ 181128 I52 0.4+ 0.3- 190125 V06 0.3- 0.0
181003 F52 0.1+ 0.1- 181128 I52 0.6- 0.5- 190125 V06 0.3- 0.2+
181015 F52 0.3+ 0.1- 181128 I52 0.3- 0.3- 190125 V06 0.3- 0.2+
181015 F52 0.2+ 0.1- 181210 I52 0.1- 0.1- 190125 V06 0.2- 0.1-
181015 F52 0.4+ 0.1- 181210 I52 0.0 0.5- 190416 V06 0.3- 0.3+
181015 F52 0.3+ 0.2- 181210 I52 0.1+ 0.0 190416 V06 0.3+ 0.5-
181105 F52 0.1+ 0.1- 181210 I52 0.2+ 0.1- 190416 V06 1.0- 0.6-
181105 F52 0.1+ 0.0 181214 F51 0.4+ 0.0
Ephemeris:
2018 WJ1 a,e,i = 1.83, 0.33, 11 q = 1.2179
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 06 25 10 59 53.3 +01 32 34 1.3638 1.4383 72.7 42.4 23.3
...
2019 07 10 11 40 09.8 -04 04 58 1.5081 1.5022 70.0 39.5 23.5
...
2019 07 18 12 00 55.9 -06 52 40 1.5903 1.5374 68.2 37.9 23.7
...
2019 07 24 12 16 15.8 -08 52 31 1.6540 1.5641 66.8 36.7 23.8
2019 07 25 12 18 48.1 -09 11 59 1.6648 1.5686 66.6 36.5 23.8
2019 07 26 12 21 20.2 -09 31 19 1.6757 1.5731 66.4 36.3 23.8
...
2019 08 01 12 36 27.8 -11 24 19 1.7414 1.6000 64.8 35.0 23.9
...
2019 08 09 12 56 27.8 -13 47 02 1.8310 1.6360 62.7 33.4 24.0
...
2019 08 24 13 33 37.2 -17 49 51 2.0027 1.7032 58.2 30.3 24.2
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-O62
Read MPEC 2019-O61
Read MPEC 2019-O63
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)