MPEC 2021-C75 : 2021 CF2
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M.P.E.C. 2021-C75 Issued 2021 February 7, 10:59 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 CF2
Observations:
K21C02F* C2021 02 06.23090508 10 33.93 +10 33 24.6 22.00GVEC075G96
K21C02F C2021 02 06.23605708 10 34.50 +10 33 23.1 21.23GVEC075G96
K21C02F C2021 02 06.24121608 10 35.09 +10 33 21.5 21.66GVEC075G96
K21C02F C2021 02 06.24636408 10 35.70 +10 33 19.9 20.85GVEC075G96
K21C02F KC2021 02 06.34829408 10 47.64 +10 32 48.3 21.05GVEC075V06
K21C02F KC2021 02 06.35146208 10 47.99 +10 32 47.4 21.05GVEC075V06
K21C02F KC2021 02 06.35462908 10 48.39 +10 32 46.3 20.95GVEC075V06
K21C02F KC2021 02 06.35779908 10 48.77 +10 32 45.7 20.86GVEC075V06
K21C02F KC2021 02 06.45523008 11 03.99 +10 33 16.3 21.2 GVEC075474
K21C02F KC2021 02 06.45874708 11 04.39 +10 33 15.6 21.2 GVEC075474
K21C02F KC2021 02 06.46226408 11 04.84 +10 33 14.4 21.2 GVEC075474
K21C02F KC2021 02 06.46578008 11 05.30 +10 33 13.6 21.1 GVEC075474
K21C02F KC2021 02 07.18256808 12 46.11 +10 28 34.0 20.92GVEC075V06
K21C02F KC2021 02 07.18494408 12 46.41 +10 28 33.3 20.91GVEC075V06
K21C02F KC2021 02 07.18732008 12 46.72 +10 28 32.7 20.91GVEC075V06
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
V06 Catalina Sky Survey-Kuiper. Observer H. Groeller. Measurers E. J.
Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.55-m reflector +
1K CCD.
Orbital elements:
2021 CF2 Earth MOID = 0.1086 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 344.49386 (2000.0) P Q
n 0.19834210 Peri. 350.96141 -0.95887990 -0.28376426
a 2.9120094 Node 172.54741 +0.26284009 -0.89480510
e 0.6219693 Incl. 2.30379 +0.10707206 -0.34467619
P 4.97 H 24.08 G 0.15 U 9
Residuals in seconds of arc
210206 G96 0.3+ 0.1- 210206 V06 0.2- 0.0+ 210206 474 0.0- 0.0-
210206 G96 0.1- 0.1- 210206 V06 0.0+ 0.0+ 210206 474 0.5+ 0.2+
210206 G96 0.2- 0.1- 210206 V06 0.2+ 0.5+ 210207 V06 0.1- 0.0-
210206 G96 0.2- 0.2- 210206 474 0.1- 0.2- 210207 V06 0.0- 0.0-
210206 V06 0.1+ 0.0- 210206 474 0.4- 0.1+ 210207 V06 0.1+ 0.0+
Ephemeris:
2021 CF2 a,e,i = 2.91, 0.62, 2 q = 1.1008
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 08 07 40 31.6 +13 07 56 0.3297 1.3087 169.2 8.1 22.8
...
2021 01 23 07 49 39.3 +11 44 41 0.2386 1.2195 169.2 8.7 22.0
...
2021 01 31 07 59 01.8 +11 04 34 0.2003 1.1800 165.2 12.3 21.7
...
2021 02 06 08 10 02.4 +10 34 53 0.1756 1.1549 162.6 14.8 21.4
2021 02 07 08 12 18.7 +10 29 50 0.1718 1.1511 162.3 15.1 21.4
2021 02 08 08 14 43.6 +10 24 43 0.1681 1.1474 161.9 15.5 21.4
...
2021 02 14 08 32 40.2 +09 51 29 0.1479 1.1282 160.8 16.7 21.1
...
2021 02 22 09 07 48.5 +08 52 17 0.1267 1.1102 161.9 16.0 20.7
...
2021 03 09 10 48 39.8 +05 26 33 0.1099 1.1019 172.9 6.4 20.0
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-C75
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