[Iaude] MPEC G136: 2021 WM [a=2.04,e=0.68,i=28.6,H=19.68]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Wed Apr 10 10:13:29 EDT 2024
M.P.E.C. 2024-G136 Issued 2024 April 10, 14:12 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 WM
Revision to MPEC 2021-W56
Additional Observations:
K21W00M 0C2024 04 04.56240915 19 18.467+32 18 37.74 23.00GVEG136T12
K21W00M 0C2024 04 04.56468515 19 18.343+32 18 40.38 22.53GVEG136T12
K21W00M 0C2024 04 04.56703615 19 18.220+32 18 43.02 22.83GVEG136T12
K21W00M 0C2024 04 04.56938415 19 18.095+32 18 45.68 22.93GVEG136T12
K21W00M KC2024 04 08.32345715 15 48.316+33 30 01.94 22.49GVEG136V06
K21W00M KC2024 04 08.32901815 15 47.952+33 30 08.03 22.92GVEG136V06
K21W00M KC2024 04 08.33458115 15 47.588+33 30 14.54 22.40GVEG136V06
K21W00M KC2024 04 08.34014115 15 47.246+33 30 20.81 22.36GVEG136V06
K21W00M KC2024 04 10.40295715 13 30.738+34 08 50.21 22.61GVEG136V06
K21W00M KC2024 04 10.40852215 13 30.313+34 08 56.36 22.81GVEG136V06
K21W00M KC2024 04 10.41408515 13 29.921+34 09 02.63 22.61GVEG136V06
K21W00M KC2024 04 10.41964915 13 29.507+34 09 08.82 22.42GVEG136V06
Observer details:
T12 University of Hawaii 88-inch telescope, Maunakea. Observers D. J. Tholen,
M.-T. Hui. Measurer D. J. Tholen. 2.24-m f/10.1 reflector + 2112 x 2112
pixels STA1600 10k CCD.
V06 Catalina Sky Survey-Kuiper. Observers J. K. Hogan, G. J. Leonard.
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, reference and Delta-T
240404 T12 5.2+ 2.0+ 240410 V06 5.4+ 1.9+ E2024-B94 +0.04 days
Orbital elements:
2021 WM Earth MOID = 0.1389 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 309.04032 (2000.0) P Q
n 0.33814597 Peri. 239.82744 +0.78201902 +0.39952041
a 2.0404842 Node 92.73151 -0.26273687 +0.90731330
e 0.6759506 Incl. 28.61395 -0.56516863 +0.13101914
P 2.91 H 19.68 G 0.15 U 1
Residuals in seconds of arc
211122 F51 0.3- 0.1+ 211205 I52 0.0 0.1+ 220101 807 0.0 0.2-
211122 F51 0.2- 0.0 211205 I52 0.1- 0.0 220101 807 0.0 0.0
211122 F51 0.0 0.2- 211205 I52 0.2+ 0.0 220101 807 0.1- 0.0
211123 F51 0.1- 0.0 211205 703 0.1- 0.2- 220101 D29 0.0 0.1+
211123 F51 0.1+ 0.2- 211205 703 (1.8+ 0.7-) 220101 D29 0.1+ 0.5-
211124 807 0.3- 0.1- 211205 703 (4.4+ 1.0-) 220101 D29 0.7- 0.2+
211124 807 0.2- 0.1+ 211206 I52 0.0 0.2- 220102 807 0.3- 0.3-
211124 807 0.3+ 0.1- 211206 I52 0.1- 0.2- 220102 807 0.2- 0.1-
211125 Y00 0.4+ 0.4- 211206 I52 0.3+ 0.0 220102 807 0.2- 0.1-
211125 Y00 0.3+ 0.3- 211206 I52 0.1+ 0.0 220106 G96 0.2- 0.0
211125 Y00 0.3+ 0.2- 211206 G96 0.0 0.1- 220106 G96 0.2+ 0.0
211125 807 0.2+ 0.1- 211206 G96 0.1+ 0.1- 220106 G96 0.2- 0.2-
211125 807 0.1- 0.1- 211206 G96 0.0 0.1- 220106 F52 0.0 0.1+
211125 807 0.2+ 0.1- 211206 G96 0.0 0.0 220106 G96 0.2+ 0.2-
211125 E94 0.0 0.1+ 211208 W94 0.3+ 0.4+ 220106 F52 0.1- 0.1+
211125 E94 0.3- 0.6- 211208 W94 0.3- 0.1+ 220110 I52 0.5- 0.5+
211125 E94 1.2- 0.2+ 211208 W94 0.2- 0.0 220110 I52 (0.7+ 0.8-)
211127 807 0.2+ 0.0 211209 I52 0.1- 0.2- 220126 H21 0.1- 0.0
211127 807 0.0 0.1- 211209 I52 0.3+ 0.3+ 220126 H21 0.1- 0.2-
211127 807 0.0 0.1- 211209 I52 0.1+ 0.3+ 220126 H21 0.0 0.3-
211130 807 0.1+ 0.2+ 211209 I52 0.0 0.3+ 220126 291 0.1+ 0.0
211130 807 0.0 0.1+ 211209 703 0.1+ 0.2+ 220126 291 0.3+ 0.3-
211130 807 0.0 0.0 211209 703 1.0+ 0.0 220127 H21 0.3+ 0.0
211201 I52 (1.5- 0.8-) 211209 703 0.5+ 0.4+ 220127 H21 0.6+ 0.1+
211201 I52 0.2- 0.1- 211209 703 0.4- 0.0 240404 T12 0.1+ 0.1+
211201 I52 0.1+ 0.1+ 211212 I52 0.1- 0.0 240404 T12 0.0 0.1+
211202 I52 0.0 0.1+ 211212 I52 0.2- 0.5- 240404 T12 0.0 0.1+
211202 I52 0.1+ 0.2- 211212 I52 0.7+ 0.1+ 240404 T12 0.0 0.0
211202 I52 0.1- 0.3+ 211212 I52 (1.3+ 0.9-) 240408 V06 0.2- 0.2+
211202 I52 0.0 0.9+ 211214 W94 0.4- 0.6+ 240408 V06 0.2- 0.1-
211203 W94 0.4+ 0.3- 211214 W94 0.3+ 0.1+ 240408 V06 0.2- 0.1+
211203 W94 0.2+ 0.4+ 211214 W94 0.4+ 0.5+ 240408 V06 0.1+ 0.1+
211203 W94 0.6+ 0.6+ 211215 807 0.1- 0.0 240410 V06 0.1+ 0.2-
211203 T08 0.8+ 0.9- 211215 807 0.0 0.0 240410 V06 0.1- 0.2-
211203 T08 0.8+ 0.1- 211215 807 0.0 0.0 240410 V06 0.1+ 0.1-
211203 T08 0.5+ 0.4- 211221 I52 (0.4- 1.5+) 240410 V06 0.0 0.1-
211203 T08 1.1+ 0.0 211221 I52 0.2+ 0.1+
211205 I52 0.1- 0.1- 211221 I52 0.4- 0.1+
Ephemeris:
2021 WM a,e,i = 2.04, 0.68, 29 q = 0.6612
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 03 11 15 25 15.2 +24 51 27 1.5320 2.1901 118.7 23.4 23.4
...
2024 03 26 15 24 49.1 +29 16 14 1.3255 2.0735 125.8 23.0 23.0
...
2024 04 03 15 20 32.1 +31 48 40 1.2290 2.0084 128.3 23.0 22.7
...
2024 04 09 15 15 05.1 +33 42 43 1.1634 1.9582 129.4 23.3 22.6
2024 04 10 15 13 58.6 +34 01 21 1.1530 1.9497 129.5 23.4 22.5
2024 04 11 15 12 48.6 +34 19 50 1.1428 1.9412 129.5 23.5 22.5
...
2024 04 17 15 04 33.5 +36 05 52 1.0854 1.8894 129.4 24.2 22.4
...
2024 04 25 14 50 15.0 +38 07 10 1.0182 1.8183 127.9 25.9 22.2
...
2024 05 10 14 14 55.0 +40 08 11 0.9194 1.6791 120.9 31.0 22.0
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-G136
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