[Iaude] MPEC C185: 2021 CG6 [a=2.12,e=0.72,i=42.9,H=19.92]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Thu Feb 15 09:12:53 EST 2024
M.P.E.C. 2024-C185 Issued 2024 February 15, 14:11 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 CG6
Revision to MPEC 2021-C255
Additional Observations:
K21C06G C2024 02 10.30099807 58 52.480+14 11 32.59 22.52GVEC185F52
K21C06G C2024 02 10.31406907 58 50.564+14 11 26.96 23.03GVEC185F52
K21C06G C2024 02 10.32707407 58 48.677+14 11 21.09 23.19GVEC185F52
K21C06G KC2024 02 14.24441 07 49 33.15 +13 41 35.3 22.9 RVEC185291
K21C06G KC2024 02 14.25946 07 49 31.03 +13 41 27.7 23.2 RVEC185291
K21C06G KC2024 02 14.27448 07 49 28.97 +13 41 20.4 22.8 RVEC185291
Observer details:
291 LPL/Spacewatch II. Observer J. V. Scotti. 1.8-m f/2.7 reflector + 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, reference and Delta-T
240210 F52 8.7+ 23.9+ 240214 291 9.1+ 24.4+ MPO624184 +0.05 days
Orbital elements:
2021 CG6 Earth MOID = 0.3355 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 323.86029 (2000.0) P Q
n 0.31999368 Peri. 323.15945 +0.09337408 +0.82343514
a 2.1169395 Node 304.64232 -0.67105056 -0.36321681
e 0.7166643 Incl. 42.86525 -0.73550827 +0.43592215
P 3.08 H 19.92 G 0.15 U 1
Residuals in seconds of arc
210207 G96 0.7- 0.1- 210212 568 0.0 0.0 210307 807 0.0 0.0
210207 G96 (1.0- 0.3+) 210219 807 0.1+ 0.0 210307 807 0.2- 0.2-
210207 G96 0.5- 0.5- 210219 807 0.1+ 0.2- 210318 807 0.0 0.1-
210208 F52 0.2- 0.2+ 210219 807 0.1+ 0.3- 210318 807 0.0 0.1-
210208 F52 0.4+ 0.4+ 210219 V06 0.0 0.2+ 210318 807 0.0 0.1-
210208 F52 0.3+ 0.0 210219 V06 0.2+ 0.4+ 210411 807 0.1- 0.1+
210211 F51 0.0 0.1- 210219 V06 0.0 0.2- 210411 807 0.0 0.1+
210211 F51 0.0 0.1+ 210219 V06 0.1+ 0.4- 210412 807 0.0 0.1+
210211 F51 0.0 0.0 210220 291 0.1- 0.1+ 240210 F52 0.1- 0.1-
210212 807 0.1- 0.0 210220 291 0.1- 0.4- 240210 F52 0.1- 0.1+
210212 807 0.2- 0.2- 210220 291 0.0 0.2+ 240210 F52 0.1+ 0.0
210212 807 0.0 0.2- 210301 695 0.1+ 0.0 240214 291 0.1+ 0.6+
210212 568 0.0 0.0 210301 695 0.2- 0.0 240214 291 0.4+ 0.0
210212 568 0.0 0.0 210301 695 0.2- 0.2+ 240214 291 1.4+ 0.2-
Ephemeris:
2021 CG6 a,e,i = 2.12, 0.72, 43 q = 0.5998
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 01 16 08 56 33.2 +16 42 26 1.4353 2.3938 163.2 6.8 23.1
...
2024 01 31 08 23 45.1 +15 22 05 1.2988 2.2799 173.1 3.0 22.6
...
2024 02 08 08 04 25.0 +14 28 21 1.2605 2.2163 161.0 8.4 22.7
...
2024 02 14 07 50 07.4 +13 43 31 1.2471 2.1673 151.6 12.5 22.8
2024 02 15 07 47 48.4 +13 35 44 1.2461 2.1590 150.1 13.2 22.8
2024 02 16 07 45 30.9 +13 27 53 1.2454 2.1507 148.5 13.9 22.9
...
2024 02 22 07 32 25.6 +12 39 31 1.2477 2.1000 139.5 17.8 22.9
...
2024 03 01 07 17 12.9 +11 33 27 1.2654 2.0306 127.9 22.6 23.1
...
2024 03 16 06 57 10.8 +09 32 11 1.3283 1.8942 108.4 29.9 23.2
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-C185
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