MPEC 2021-D06 : 2021 CQ9
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M.P.E.C. 2021-D06 Issued 2021 February 16, 10:45 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 CQ9
Observations:
K21C09Q* C2021 02 13.26883507 06 36.65 +38 41 20.5 22.07GVED006V00
K21C09Q C2021 02 13.27359807 06 36.96 +38 41 05.6 21.92GVED006V00
K21C09Q C2021 02 13.27835407 06 37.18 +38 40 51.2 21.69GVED006V00
K21C09Q C2021 02 13.28312007 06 37.44 +38 40 35.9 VED006V00
K21C09Q KC2021 02 13.33086 07 06 40.07 +38 38 08.2 21.8 GVED006291
K21C09Q KC2021 02 13.34263 07 06 40.80 +38 37 31.6 VED006291
K21C09Q KC2021 02 13.35441 07 06 41.44 +38 36 55.6 21.6 GVED006291
K21C09Q mC2021 02 15.25302807 08 38.62 +37 02 20.8 21.69GVED006V00
K21C09Q mC2021 02 15.25866407 08 38.94 +37 02 04.1 22.06GVED006V00
K21C09Q KC2021 02 16.23197307 09 39.56 +36 15 28.9 21.99GVED006V06
K21C09Q KC2021 02 16.23989807 09 40.02 +36 15 06.2 22.27GVED006V06
K21C09Q mC2021 02 16.24264607 09 40.22 +36 14 58.4 21.63GVED006V00
K21C09Q mC2021 02 16.24386907 09 40.28 +36 14 55.2 22.12GVED006V00
K21C09Q mC2021 02 16.24509107 09 40.32 +36 14 51.7 23.14GVED006V00
K21C09Q mC2021 02 16.24631407 09 40.39 +36 14 48.2 22.51GVED006V00
K21C09Q KC2021 02 16.24782607 09 40.46 +36 14 43.3 21.98GVED006V06
Observer details:
291 LPL/Spacewatch II. Observer M. J. Brucker. 1.8-m f/2.7 reflector + CCD.
V00 Kitt Peak-Bok. Observer H. Groeller. Measurers M. J. Brucker, E. J.
Christensen, C. E. Woodward, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. S.
McMillan, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W.
Wierzchos. 2.25-m reflector + CCD.
V06 Catalina Sky Survey-Kuiper. Observer D. Rankin. 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 CQ9 Earth MOID = 0.3836 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 5.39115 (2000.0) P Q
n 0.23368703 Peri. 92.41620 +0.49763175 -0.83540984
a 2.6104356 Node 324.45783 +0.54609119 +0.51076607
e 0.5824658 Incl. 23.66757 +0.67390433 +0.20299857
P 4.22 H 21.37 G 0.15 U 9
Residuals in seconds of arc
210213 V00 0.2- 0.1+ 210213 291 0.3+ 0.7+ 210216 V00 0.2+ 0.1+
210213 V00 0.3+ 0.1- 210215 V00 0.1- 0.1+ 210216 V00 0.2- 0.1+
210213 V00 0.1- 0.2+ 210215 V00 0.1+ 0.1- 210216 V00 0.2- 0.1+
210213 V00 0.1- 0.3- 210216 V06 0.3- 0.1+ 210216 V06 0.2- 0.4-
210213 291 0.2- 0.1+ 210216 V06 0.1- 0.0-
210213 291 0.6+ 0.1+ 210216 V00 0.2+ 0.1-
Ephemeris:
2021 CQ9 a,e,i = 2.61, 0.58, 24 q = 1.0899
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 17 06 36 56.9 +70 06 19 0.4005 1.2757 129.3 36.6 21.4
...
2021 02 01 06 54 32.6 +50 58 58 0.4713 1.3732 138.2 28.6 21.7
...
2021 02 09 07 02 20.9 +42 33 13 0.5351 1.4292 137.8 27.6 22.0
...
2021 02 15 07 08 23.2 +37 14 41 0.5936 1.4724 135.8 27.9 22.3
2021 02 16 07 09 25.3 +36 26 30 0.6042 1.4797 135.3 28.0 22.4
2021 02 17 07 10 27.8 +35 39 38 0.6150 1.4871 134.8 28.1 22.4
...
2021 02 23 07 16 54.0 +31 24 49 0.6841 1.5314 131.6 28.9 22.7
...
2021 03 03 07 25 56.7 +26 46 26 0.7866 1.5915 126.7 30.0 23.2
...
2021 03 18 07 44 12.0 +20 22 54 1.0051 1.7054 117.0 31.3 23.9
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-D06
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