[Iaude] MPEC J100: 2018 WB [a=1.12,e=0.25,i=22.8,H=23.11]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Mon May 6 10:11:28 EDT 2024
M.P.E.C. 2024-J100 Issued 2024 May 6, 14:10 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
2018 WB
Revision to MPEC 2018-W13
Additional Observations:
K18W00B C2024 05 04.21043 12 10 21.80 +36 53 22.9 22.9 GVEJ100V00
K18W00B C2024 05 04.21604 12 10 20.21 +36 53 06.2 23.2 GVEJ100V00
K18W00B C2024 05 04.22165 12 10 18.66 +36 52 50.0 22.7 GVEJ100V00
K18W00B C2024 05 04.22726 12 10 17.19 +36 52 33.0 22.4 GVEJ100V00
K18W00B 7C2024 05 04.89565912 07 21.953+36 19 04.09 VEJ100Z84
K18W00B 7C2024 05 04.94082012 07 09.706+36 16 46.23 22.3 GVEJ100Z84
K18W00B 7C2024 05 04.98499112 06 57.680+36 14 30.20 VEJ100Z84
Observer details:
V00 Kitt Peak-Bok. Observer R. A. Mastaler. Measurers B. Gray, D. Rankin, F.
C. Shelly. 2.25-m reflector + mosaic CCD.
Z84 Calar Alto-Schmidt. Observers F. Ocana, R. Kresken, M. Micheli, L.
Conversi. Measurers F. Ocana, M. Micheli. 0.8-m f/3 Schmidt + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240504 V00 0.75- 0.16- 240504 Z84 0.73- 0.16- E2024-CI1 -0.47 days
Orbital elements:
2018 WB Earth MOID = 0.0405 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 245.51396 (2000.0) P Q
n 0.83043938 Peri. 272.28654 +0.76706399 +0.55982628
a 1.1209789 Node 53.84412 -0.31464673 +0.75394241
e 0.2524646 Incl. 22.83809 -0.55911561 +0.34375192
P 1.19 H 23.11 G 0.15 U 1
Residuals in seconds of arc
181116 G96 0.3+ 0.1- 181117 L01 0.4+ 0.6+ 181210 H21 0.4- 0.3+
181116 G96 0.0 0.5+ 181117 L01 0.3+ 0.5+ 181210 H21 0.2- 0.1-
181116 G96 0.1+ 0.3+ 181127 I52 1.1- 0.5+ 181211 H21 0.7+ 1.1+
181116 G96 0.1+ 1.2- 181127 I52 0.5- 0.3- 181211 H21 0.3+ 0.9+
181116 H01 0.1+ 0.2- 181127 I52 0.2- 0.2- 181211 H21 0.1- 0.2+
181116 H01 0.2+ 0.3+ 181127 I52 0.4- 0.0 181213 H21 0.4+ 0.2+
181116 H01 0.2+ 0.3+ 181127 691 0.3+ 0.5+ 181213 H21 0.3+ 0.4+
181116 H01 0.1+ 0.3+ 181127 691 0.0 0.3- 181213 H21 0.2- 0.1-
181117 I52 0.1- 0.1- 181127 691 0.1- 0.4- 240504 V00 0.0 0.1-
181117 I52 0.2+ 0.2- 181128 I52 0.6- 0.5- 240504 V00 0.3- 0.1-
181117 I52 0.3+ 0.2+ 181128 I52 0.0 0.1+ 240504 V00 0.2- 0.3+
181117 I52 0.2+ 0.2+ 181128 I52 0.2+ 0.1- 240504 V00 0.8+ 0.0
181117 I52 0.6- 0.5- 181129 I52 0.4- 0.2- 240504 Z84 0.3- 0.3-
181117 I52 0.3+ 0.5+ 181129 I52 0.2- 0.1- 240504 Z84 0.2+ 0.1-
181117 I52 0.7- 0.7- 181129 I52 0.3- 0.2- 240504 Z84 0.5- 0.2+
181117 I52 0.3- 0.5+ 181129 I52 0.1- 0.1-
181117 L01 0.3+ 0.3- 181210 H21 0.2- 0.2+
Ephemeris:
2018 WB a,e,i = 1.12, 0.25, 23 q = 0.8380
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 04 06 14 22 18.7 +45 35 10 0.3971 1.2701 124.8 40.3 23.2
...
2024 04 21 13 14 51.9 +44 31 30 0.3362 1.2205 122.9 43.7 22.9
...
2024 04 29 12 34 37.9 +40 41 45 0.3133 1.1914 119.1 47.6 22.8
...
2024 05 05 12 06 55.1 +36 13 49 0.3012 1.1686 115.1 51.4 22.7
2024 05 06 12 02 38.6 +35 22 00 0.2996 1.1647 114.3 52.1 22.7
2024 05 07 11 58 28.9 +34 28 20 0.2982 1.1608 113.5 52.8 22.7
...
2024 05 13 11 35 56.8 +28 32 53 0.2920 1.1369 108.4 57.5 22.8
...
2024 05 21 11 12 07.9 +19 38 15 0.2903 1.1041 100.8 64.2 22.9
...
2024 06 05 10 41 14.2 +02 16 33 0.3027 1.0408 86.5 76.6 23.3
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-J100
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