MPEC 2021-C13 : 2021 CF
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M.P.E.C. 2021-C13 Issued 2021 February 3, 09:34 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 CF
Observations:
K21C00F* C2021 02 01.14892508 38 05.52 +26 06 56.7 20.55GVEC013G96
K21C00F C2021 02 01.15410908 38 00.98 +26 07 50.1 20.55GVEC013G96
K21C00F C2021 02 01.15929508 37 56.48 +26 08 43.5 19.91GVEC013G96
K21C00F C2021 02 01.16447908 37 51.90 +26 09 36.9 20.49GVEC013G96
K21C00F KC2021 02 01.28434108 36 05.73 +26 29 47.0 19.52GVEC013I52
K21C00F KC2021 02 01.28742908 36 03.03 +26 30 18.2 19.81GVEC013I52
K21C00F KC2021 02 01.29051808 36 00.30 +26 30 48.6 20.28GVEC013I52
K21C00F KC2021 02 03.15299 08 10 50.91 +31 07 50.3 21.2 GVEC013H36
K21C00F KC2021 02 03.16184 08 10 43.58 +31 09 04.9 21.2 GVEC013H36
K21C00F KC2021 02 03.17064 08 10 36.30 +31 10 16.0 21.3 GVEC013H36
K21C00F KC2021 02 03.17944 08 10 28.87 +31 11 29.5 21.4 GVEC013H36
K21C00F KC2021 02 03.21467 08 09 59.25 +31 16 11.7 21.3 GVEC013H36
K21C00F KC2021 02 03.35111108 08 07.11 +31 34 14.1 20.99GVEC013I52
K21C00F KC2021 02 03.35408108 08 04.65 +31 34 37.1 20.22GVEC013I52
K21C00F KC2021 02 03.35705008 08 02.19 +31 34 59.4 20.89GVEC013I52
Observer details:
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.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + 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.
Orbital elements:
2021 CF Earth MOID = 0.0376 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 94.15061 (2000.0) P Q
n 1.43435352 Peri. 192.71790 +0.78563860 +0.60622602
a 0.7786912 Node 129.26458 -0.55274413 +0.77746934
e 0.3512349 Incl. 9.18159 -0.27793150 +0.16742595
P 0.69 H 26.05 G 0.15 U 8
Residuals in seconds of arc
210201 G96 0.4+ 0.1+ 210201 I52 0.3- 0.2- 210203 H36 0.3- 1.8+
210201 G96 0.0- 0.0+ 210201 I52 0.0+ 0.4- 210203 H36 1.3- 0.6+
210201 G96 0.3+ 0.1+ 210203 H36 1.2- 2.2- 210203 I52 0.2- 0.1-
210201 G96 0.5- 0.2+ 210203 H36 0.4- 0.1+ 210203 I52 0.1+ 0.2+
210201 I52 (1.0- 0.8-) 210203 H36 0.6+ 0.4- 210203 I52 0.2+ 0.1-
Ephemeris:
2021 CF a,e,i = 0.78, 0.35, 9 q = 0.5052
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 04 12 46 11.5 -33 45 29 0.1180 0.9699 80.1 93.0 24.7
...
2021 01 19 11 21 26.1 -15 55 51 0.06672 1.0183 119.4 57.3 22.3
...
2021 01 27 09 50 18.3 +08 55 52 0.05396 1.0355 159.9 19.1 20.8
...
2021 02 02 08 26 14.3 +28 23 27 0.06070 1.0444 165.8 13.3 20.8
2021 02 03 08 12 48.3 +30 47 37 0.06309 1.0456 161.3 17.6 21.1
2021 02 04 07 59 51.1 +32 55 15 0.06578 1.0466 157.0 21.6 21.3
...
2021 02 10 06 55 27.9 +40 58 55 0.08615 1.0510 136.6 40.2 22.4
...
2021 02 18 06 04 42.4 +44 54 23 0.1191 1.0516 119.2 55.1 23.5
...
2021 03 05 05 29 19.3 +46 53 02 0.1826 1.0365 99.1 70.9 24.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-C13
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