[Iaude] MPEC K153: 2021 WH1 [a=1.32,e=0.11,i=22.1,H=21.44]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Fri May 31 10:15:29 EDT 2024
M.P.E.C. 2024-K153 Issued 2024 May 31, 14:14 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
2021 WH1
Revision to MPEC 2021-W79
Additional Observations:
K21W01H 1C2018 11 18.26757 03 47 30.17 +38 09 45.5 20.8 GVEK153G96
K21W01H 1C2018 11 18.27491 03 47 29.16 +38 09 21.3 20.9 GVEK153G96
K21W01H KC2024 05 30.42062521 06 10.645+04 43 50.20 21.42GVEK153V06
K21W01H KC2024 05 30.42527321 06 11.041+04 44 09.60 20.97GVEK153V06
K21W01H KC2024 05 30.42991521 06 11.423+04 44 28.79 20.83GVEK153V06
K21W01H KC2024 05 30.43455821 06 11.819+04 44 48.16 20.88GVEK153V06
Observer details:
G96 Mt. Lemmon Survey. Observer H. Groeller. Measurers B. Gray, D. Rankin,
F. C. Shelly. 1.5-m reflector + 10K CCD.
V06 Catalina Sky Survey-Kuiper. Observer V. F. Carvajal. Measurers T.
Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A.
D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.55-m
reflector + 1K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
181118 G96 0.07- 0.01- 240530 V06 0.02- 0.01- E2024-BH3 +0.04 days
Orbital elements:
2021 WH1 Earth MOID = 0.2137 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 288.79855 (2000.0) P Q
n 0.64900211 Peri. 57.95232 +0.55374176 +0.75385069
a 1.3212104 Node 249.80966 -0.83258930 +0.49470039
e 0.1081095 Incl. 22.13688 -0.01284966 +0.43241261
P 1.52 H 21.44 G 0.15 U 2
Residuals in seconds of arc
181118 G96 0.2+ 0.1+ 211126 033 0.7- 0.6- 211202 I52 0.3- 0.5-
181118 G96 0.1- 0.1+ 211127 858 0.1- 0.2- 211202 I52 0.2- 0.5+
211125 F51 0.1- 0.2+ 211127 858 0.3+ 0.9- 211205 291 0.1- 0.3+
211125 F51 0.1+ 0.1- 211128 858 0.2+ 0.4+ 211205 291 0.3- 0.1+
211125 F51 0.1- 0.0 211128 858 0.5- 0.8+ 211206 I52 0.1+ 0.2-
211125 F51 0.0 0.0 211201 I52 0.0 0.6+ 211206 I52 0.3+ 0.3+
211125 F51 0.1+ 0.0 211201 I52 0.1- 0.3- 211206 I52 0.3- 0.4-
211126 858 0.7- 0.8- 211201 I52 0.3- 0.0 211208 691 0.8+ 0.9+
211126 734 0.5- 0.5- 211202 291 0.5+ 0.1- 211208 691 0.4+ 1.0-
211126 858 0.4- 0.2- 211202 291 0.2- 0.1+ 240530 V06 0.1+ 0.1-
211126 734 0.8+ 0.1- 211202 291 0.2+ 0.0 240530 V06 0.1+ 0.0
211126 734 0.0 0.2- 211202 I52 0.2+ 1.4+ 240530 V06 0.1- 0.0
211126 033 0.2+ 0.4- 211202 I52 0.1+ 0.1- 240530 V06 0.1- 0.2+
Ephemeris:
2021 WH1 a,e,i = 1.32, 0.11, 22 q = 1.1784
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 05 01 20 07 45.5 -23 20 12 0.5504 1.2418 101.7 52.6 22.5
...
2024 05 16 20 40 51.9 -10 39 10 0.4681 1.2216 105.4 52.9 22.2
...
2024 05 24 20 55 41.0 -02 26 36 0.4351 1.2120 106.8 53.1 22.0
...
2024 05 30 21 05 31.2 +04 15 00 0.4162 1.2055 107.4 53.4 21.9
2024 05 31 21 07 03.0 +05 23 58 0.4136 1.2045 107.5 53.4 21.9
2024 06 01 21 08 32.9 +06 33 24 0.4111 1.2035 107.5 53.5 21.9
...
2024 06 07 21 16 51.3 +13 36 25 0.3993 1.1977 107.6 53.9 21.8
...
2024 06 15 21 26 04.2 +23 00 55 0.3918 1.1912 107.1 54.6 21.8
...
2024 06 30 21 37 21.0 +39 10 05 0.3987 1.1824 104.7 56.3 21.8
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-K153
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