[Iaude] MPEC C164: 2021 CM7 [a=2.07,e=0.93,i=7.5,H=21.10]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Wed Feb 14 08:31:39 EST 2024
M.P.E.C. 2024-C164 Issued 2024 February 14, 13:30 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 CM7
Revision to MPEC 2021-C284
Additional Observations:
K21C07M C2024 01 20.50853209 54 08.149+04 29 59.81 22.25GVEC164F52
K21C07M C2024 01 20.53360809 54 05.205+04 30 00.24 23.13GVEC164F52
K21C07M C2024 01 20.54610009 54 03.718+04 30 00.07 23.12GVEC164F52
K21C07M C2024 02 05.41670809 05 52.574+05 14 25.49 21.23GVEC164F52
K21C07M C2024 02 05.42787309 05 49.549+05 14 29.49 21.19GVEC164F52
K21C07M C2024 02 05.43905709 05 46.486+05 14 33.30 20.57GVEC164F52
K21C07M C2024 02 05.45024409 05 43.436+05 14 36.80 19.80GVEC164F52
K21C07M C2024 02 14.33349808 16 54.965+06 22 13.11 20.89wXEC164F51
K21C07M C2024 02 14.34669408 16 49.674+06 22 20.37 20.97wXEC164F51
K21C07M C2024 02 14.35986808 16 44.382+06 22 27.67 21.05wXEC164F51
K21C07M C2024 02 14.37310008 16 39.056+06 22 34.97 20.89wXEC164F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, 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 (or two decimals in degrees), reference and Delta-T
240120 F52 0.30+ 0.16+ 240214 F51 0.14+ 0.26+ E2023-XR9 +0.55 days
Orbital elements:
2021 CM7 Earth MOID = 0.0761 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 288.12475 (2000.0) P Q
n 0.33105752 Peri. 4.55182 +0.30574179 +0.94366415
a 2.0695079 Node 283.29046 -0.87760211 +0.22775981
e 0.9258072 Incl. 7.47266 -0.36923771 +0.24004881
P 2.98 H 21.10 G 0.15 U 0
Residuals in seconds of arc
210206 G96 (0.8- 0.4-) 210213 033 0.3- 0.7- 240120 F52 0.2+ 0.0
210206 G96 0.4+ 0.3- 210213 033 0.3- 0.1- 240120 F52 0.2+ 0.2+
210211 F51 0.1+ 0.1+ 210213 033 0.4- 0.3- 240120 F52 0.1- 0.1-
210211 F51 0.1+ 0.2+ 210219 807 0.0 0.1+ 240205 F52 0.4- 0.1+
210211 F51 0.2+ 0.0 210219 807 0.1+ 0.1+ 240205 F52 0.0 0.1+
210211 F51 0.0 0.1+ 210219 807 0.1+ 0.0 240205 F52 0.0 0.0
210212 568 0.0 0.0 210219 V06 0.0 0.2+ 240205 F52 0.2+ 0.4-
210212 568 0.0 0.0 210219 V06 0.2+ 0.4+ 240214 F51 0.1+ 0.0
210212 568 0.0 0.0 210219 V06 0.1+ 0.1- 240214 F51 0.1+ 0.0
210213 807 0.1+ 0.0 210308 807 0.1+ 0.1+ 240214 F51 0.1+ 0.0
210213 807 0.1- 0.4- 210308 807 (0.0 1.1+) 240214 F51 0.0 0.1+
210213 807 (0.4- 1.1-) 210308 807 0.1- 0.2-
Ephemeris:
2021 CM7 a,e,i = 2.07, 0.93, 7 q = 0.1535
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 01 15 10 02 57.8 +04 32 49 0.9754 1.8537 142.3 19.0 23.4
...
2024 01 30 09 30 20.6 +04 45 32 0.6936 1.6608 163.0 10.0 22.1
...
2024 02 07 08 58 32.7 +05 24 14 0.5710 1.5500 168.6 7.2 21.4
...
2024 02 13 08 25 27.4 +06 10 20 0.4967 1.4628 159.5 13.7 21.2
2024 02 14 08 19 05.6 +06 19 15 0.4860 1.4478 157.3 15.3 21.2
2024 02 15 08 12 29.0 +06 28 27 0.4759 1.4328 154.9 17.0 21.2
...
2024 02 21 07 27 59.1 +07 26 40 0.4270 1.3402 138.9 29.0 21.2
...
2024 02 29 06 19 29.7 +08 34 49 0.3952 1.2094 114.5 48.2 21.3
...
2024 03 15 04 16 07.6 +09 00 36 0.4243 0.9358 69.7 85.2 22.1
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-C164
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