[Iaude] MPEC W89: 2020 XW4 [a=2.52,e=0.53,i=23.2,H=21.25]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Wed Nov 22 09:20:44 EST 2023
M.P.E.C. 2023-W89 Issued 2023 November 22, 14:19 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2020 XW4
Revision to MPEC 2020-X155
Additional Observations:
K20X04W C2016 11 27.57766 09 22 27.771+44 47 50.01 22.3 wLEW089F51
K20X04W C2016 11 27.59104 09 22 29.948+44 47 23.37 22.4 wLEW089F51
K20X04W C2016 11 27.61768 09 22 34.281+44 46 29.59 22.4 wLEW089F51
K20X04W C2017 01 03.61753310 26 10.200+04 04 01.46 20.83GVEW089F51
K20X04W C2017 01 03.62893510 26 10.416+04 02 52.81 21.02GVEW089F51
K20X04W C2017 01 03.64028810 26 10.650+04 01 44.75 20.76GVEW089F51
K20X04W C2017 01 03.65166910 26 10.864+04 00 36.18 21.02GVEW089F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers B. Gibson, T. Goggia, S. Kahale, A.
Schultz, M. Willman, J. Herman, T. Lowe, P. Minguez, I. Smith. Measurers
K. Chambers, S. Chastel, L. Denneau, H. Flewelling, M. Huber, E. Lilly, E.
Magnier, R. Wainscoat, C. Waters, R. Weryk, T. de Boer, J. Fairlamb, H.
Gao, C.-C. Lin, Y. Ramanjooloo. 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
161127 F51 0.05+ 0.08+ 170103 F51 0.11+ 0.11+ E2021-B10 +0.06 days
Orbital elements:
2020 XW4 Earth MOID = 0.2001 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 239.18060 (2000.0) P Q
n 0.24622929 Peri. 192.80338 -0.55047676 -0.75003474
a 2.5210197 Node 291.75125 +0.79654040 -0.34034844
e 0.5327226 Incl. 23.24994 +0.24999745 -0.56710742
P 4.00 H 21.25 G 0.15 U 0
Residuals in seconds of arc
161127 F51 0.2- 0.2- 201217 G96 0.0 0.1+ 210110 I52 0.0 0.1-
161127 F51 0.2- 0.0 201217 G96 0.1+ 0.2- 210111 F52 0.1- 0.1-
161127 F51 0.1- 0.1+ 201217 G96 0.1- 0.0 210111 F52 0.1- 0.0
170103 F51 0.2+ 0.0 201217 G96 0.4+ 0.2+ 210112 L01 0.1+ 0.3+
170103 F51 0.1+ 0.1- 201217 I52 0.0 0.1+ 210112 L01 0.4- 0.2+
170103 F51 0.2+ 0.1+ 201217 I52 0.3+ 0.2- 210112 L01 0.0 0.5+
170103 F51 0.1+ 0.0 201217 I52 0.1- 0.2- 210112 L01 0.1+ 0.3+
201209 F51 0.1+ 0.1+ 201217 I52 0.4+ 0.4+ 210112 L01 0.2- 0.1-
201209 F51 0.1+ 0.2+ 201218 I52 0.1- 0.2- 210113 G96 0.2+ 0.1+
201209 F51 0.2+ 0.1- 201221 I52 0.2+ 0.3- 210113 G96 0.3- 0.2-
201209 F51 0.1+ 0.1+ 201221 I52 0.1- 0.0 210113 G96 0.0 0.2-
201210 F52 0.4+ 0.1- 201221 I52 0.3+ 0.1- 210113 G96 0.3- 0.0
201210 F52 0.3+ 0.1+ 201222 691 1.0+ 0.8- 210115 F51 0.0 0.1-
201210 F52 0.0 0.0 201222 691 0.0 0.1+ 210115 F51 0.0 0.1-
201212 J04 0.1+ 0.3+ 201226 G96 0.2- 0.0 210115 F51 0.0 0.0
201212 J04 0.1+ 0.2+ 201226 G96 0.1+ 0.4+ 210202 807 0.1+ 0.0
201212 J04 0.3+ 0.1- 201226 G96 0.5+ 0.3- 210202 807 0.0 0.0
201213 L01 0.7- 0.2- 201226 G96 0.1- 0.2+ 210202 807 0.1+ 0.1+
201213 L01 0.7- 0.2+ 201227 I52 0.1- 0.0 210205 807 0.6- 0.1-
201213 L01 0.3- 0.9+ 201227 I52 0.7+ 0.1- 210205 807 0.1+ 0.2+
201213 033 0.3+ 0.5- 201227 I52 0.2- 0.3+ 210205 807 0.0 0.1-
201213 033 0.5- 0.2- 210106 I52 0.0 0.1+ 210205 474 0.2+ 1.4-
201213 033 0.0 0.4- 210106 I52 0.1- 0.0 210205 474 0.5+ 0.3+
201216 I52 0.0 0.0 210106 I52 0.1+ 0.2- 210205 474 0.7- 0.2+
201216 I52 0.2+ 0.0 210106 I52 0.0 0.2- 210218 807 0.2+ 0.4+
201216 I52 0.5- 0.6- 210107 807 0.0 0.0 210218 807 0.3+ 0.3+
201216 V06 0.0 0.2+ 210107 807 0.2+ 0.2- 210218 807 0.5+ 0.1+
201216 V06 0.4- 0.1- 210107 807 0.2- 0.2+ 210318 807 0.2+ 0.6-
201216 I52 0.2+ 0.4+ 210110 I52 0.4+ 0.1+ 210318 807 0.1- 0.2+
201216 V06 0.1- 0.3+ 210110 I52 0.3- 0.1- 210318 807 0.1- 0.3+
201216 V06 0.1+ 0.1- 210110 I52 0.1- 0.2-
Ephemeris:
2020 XW4 a,e,i = 2.52, 0.53, 23 q = 1.1780
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 10 23 20 40 22.2 -01 26 21 3.0837 3.4407 102.6 16.4 27.3
...
2023 11 07 20 44 37.3 -01 44 02 3.2595 3.3931 89.2 17.0 27.4
...
2023 11 15 20 48 28.8 -01 45 25 3.3525 3.3666 82.3 16.9 27.4
...
2023 11 21 20 52 01.4 -01 42 32 3.4205 3.3463 77.4 16.7 27.4
2023 11 22 20 52 39.8 -01 41 43 3.4316 3.3428 76.5 16.7 27.4
2023 11 23 20 53 19.1 -01 40 49 3.4426 3.3394 75.7 16.7 27.4
...
2023 11 29 20 57 31.4 -01 33 25 3.5072 3.3184 70.9 16.3 27.5
...
2023 12 07 21 03 49.2 -01 18 15 3.5884 3.2898 64.7 15.7 27.5
...
2023 12 22 21 17 28.5 -00 33 31 3.7212 3.2340 53.5 14.2 27.5
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-W89
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