MPEC 2021-C24 : 2021 CH
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M.P.E.C. 2021-C24 Issued 2021 February 6, 03:00 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 CH
Observations:
K21C00H C2021 02 01.25521 08 46 30.52 +30 06 27.2 21.4 GVEC024G96
K21C00H C2021 02 01.26191 08 46 32.69 +30 05 54.2 20.7 GVEC024G96
K21C00H* C2021 02 05.28556809 22 13.54 +21 19 09.0 20.62GVEC024G96
K21C00H C2021 02 05.29117209 22 17.08 +21 18 02.7 20.55GVEC024G96
K21C00H C2021 02 05.29677609 22 20.63 +21 16 56.6 20.60GVEC024G96
K21C00H C2021 02 05.30238309 22 24.12 +21 15 50.1 20.60GVEC024G96
K21C00H KC2021 02 05.42691909 23 44.11 +20 50 28.6 19.86GVEC024I52
K21C00H KC2021 02 05.42894609 23 45.45 +20 50 02.9 19.89GVEC024I52
K21C00H KC2021 02 05.43096009 23 46.80 +20 49 37.2 20.19GVEC024I52
K21C00H KC2021 02 06.05186709 32 00.82 +18 31 27.9 19.8 GVEC024J95
K21C00H KC2021 02 06.06219309 32 08.60 +18 28 59.3 20.2 GVEC024J95
K21C00H KC2021 02 06.06702809 32 12.21 +18 27 49.8 19.7 GVEC024J95
Observer details:
G96 Mt. Lemmon Survey. Observers G. J. Leonard, T. A. Pruyne. Measurers B.
Gray, D. Rankin, F. C. Shelly, 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, R. L. Seaman, K. W. Wierzchos. 1.5-m
reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer K. W. Wierzchos.
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. 1.0-m
reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2021 CH Earth MOID = 0.0133 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 323.77088 (2000.0) P Q
n 0.45822868 Peri. 212.03290 -0.98524379 -0.16113767
a 1.6662796 Node 318.57009 +0.16958884 -0.87354392
e 0.4188395 Incl. 5.00252 +0.02311476 -0.45929911
P 2.15 H 27.3 G 0.15 U 7
Residuals in seconds of arc
210201 G96 0.1- 0.2+ 210205 G96 0.2+ 0.1- 210205 I52 0.1- 0.5-
210201 G96 0.3+ 0.0 210205 G96 0.4- 0.2- 210206 J95 0.2+ 0.3+
210205 G96 0.2- 0.1+ 210205 I52 0.2- 0.1+ 210206 J95 0.2+ 0.1-
210205 G96 0.0 0.2- 210205 I52 0.3- 0.1- 210206 J95 0.3- 0.0
Ephemeris:
2021 CH a,e,i = 1.67, 0.42, 5 q = 0.9684
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 07 07 52 22.8 +38 07 15 0.1796 1.1555 162.1 15.2 24.7
...
2021 01 22 08 09 23.7 +36 53 31 0.09885 1.0790 162.8 15.7 23.3
...
2021 01 30 08 33 57.9 +32 41 33 0.06113 1.0441 164.6 14.5 22.1
...
2021 02 05 09 18 47.8 +22 14 42 0.03577 1.0215 173.7 6.1 20.6
2021 02 06 09 31 19.6 +18 46 23 0.03204 1.0180 175.6 4.2 20.2
2021 02 07 09 46 16.9 +14 21 19 0.02859 1.0147 174.1 5.7 20.1
...
2021 02 13 12 39 40.7 -35 15 56 0.02103 0.9968 116.3 62.6 21.1
...
2021 02 21 16 48 24.0 -52 53 47 0.04687 0.9793 76.8 100.5 24.3
...
2021 03 08 18 28 55.8 -49 11 02 0.1091 0.9681 73.9 99.8 26.0
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-C24
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