MPEC 2021-C167 : 2021 CZ3
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M.P.E.C. 2021-C167 Issued 2021 February 9, 23:09 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 CZ3
Observations:
K21C03Z* C2021 02 09.26604210 05 12.08 +37 58 34.5 16.67RUEC167I41
K21C03Z C2021 02 09.26638910 05 08.63 +37 57 41.5 16.67RUEC167I41
K21C03Z C2021 02 09.27980310 03 10.56 +37 25 56.6 17.44gUEC167I41
K21C03Z C2021 02 09.28015010 03 07.60 +37 25 09.6 17.44gUEC167I41
K21C03Z C2021 02 09.29086810 01 43.71 +37 02 15.5 17.48gUEC167I41
K21C03Z C2021 02 09.29121510 01 41.08 +37 01 33.1 17.48gUEC167I41
K21C03Z mC2021 02 09.35988909 54 31.63 +35 11 03.4 17.61GVEC167I52
K21C03Z mC2021 02 09.36002409 54 31.08 +35 10 52.6 17.19GVEC167I52
K21C03Z mC2021 02 09.36015809 54 30.54 +35 10 42.0 17.34GVEC167I52
K21C03Z mC2021 02 09.36029109 54 29.99 +35 10 31.2 17.57GVEC167I52
K21C03Z C2021 02 09.38608809 53 32.14 +34 38 15.4 17.75RUEC167I41
K21C03Z C2021 02 09.38643509 53 30.79 +34 37 51.1 17.75RUEC167I41
K21C03Z C2021 02 09.38702509 53 28.87 +34 37 12.1 17.73RUEC167I41
K21C03Z C2021 02 09.38737309 53 27.62 +34 36 48.5 17.73RUEC167I41
K21C03Z C2021 02 09.65219 09 53 04.20 +31 50 31.4 19.0 GVEC167N88
K21C03Z C2021 02 09.65255 09 53 03.84 +31 50 26.2 19.6 GVEC167N88
K21C03Z C2021 02 09.65292 09 53 03.21 +31 50 22.6 18.9 GVEC167N88
K21C03Z C2021 02 09.65328 09 53 02.76 +31 50 17.4 19.0 GVEC167N88
K21C03Z C2021 02 09.65359 09 53 02.33 +31 50 14.9 19.4 GVEC167N88
K21C03Z 1C2021 02 09.77064 09 52 17.84 +31 11 23.7 20.2 VVEC167033
K21C03Z 1C2021 02 09.77133 09 52 17.40 +31 11 19.0 20.2 VVEC167033
K21C03Z 1C2021 02 09.77202 09 52 16.99 +31 11 14.5 20.2 VVEC167033
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, F.
Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
I41 Palomar Mountain--ZTF. Observers B. T. Bolin, V. Bhalerao, C. M.
Copperwheat, K. P. Deshmukh, C.-Y. Hsu, Z.-Y. Lin, J. Purdum, S. Royle, K.
Sharma, C. Zhai, Z. T. F. Collaboration. Measurers B. T. Bolin, D. A.
Duev, H.-W. Lin, F. J. Masci, Q.-Z. Ye. 1.2-m f/2.4 Schmidt.
I52 Steward Observatory, Mt. Lemmon Station. 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. 1.0-m reflector +
CCD.
N88 Xingming Observatory #3, Nanshan. Observer X. Gao. Measurer Q.-Z. Ye.
0.6-m f/8 Ritchey-Chretien + CCD.
Orbital elements:
2021 CZ3 Earth MOID = 0.0003 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 8.52448 (2000.0) P Q
n 0.87071595 Peri. 273.97481 +0.57533482 -0.81047063
a 1.0861381 Node 140.23193 +0.80201032 +0.53258364
e 0.2733207 Incl. 9.91307 +0.16052814 +0.24390988
P 1.13 H 30.93 G 0.15 U 5
Residuals in seconds of arc
210209 I41 1.3+ 0.6+ 210209 I52 0.1- 0.4+ 210209 N88 0.1- 0.3+
210209 I41 0.8- 0.1- 210209 I52 0.2- 0.2+ 210209 N88 0.3+ 0.3-
210209 I41 0.4+ 0.6+ 210209 I41 (2.4+ 0.8-) 210209 N88 0.1+ 1.1+
210209 I41 0.8- 0.1+ 210209 I41 (0.6+ 1.5-) 210209 033 0.1+ 0.1+
210209 I41 0.3+ 1.1- 210209 I41 2.0+ 0.5- 210209 033 0.2- 0.1-
210209 I41 0.3- 0.9- 210209 I41 1.3+ 0.5- 210209 033 0.2- 0.1-
210209 I52 0.2- 0.2+ 210209 N88 0.2+ 0.1-
210209 I52 0.2- 0.2+ 210209 N88 1.7+ 0.7-
Ephemeris:
2021 CZ3 a,e,i = 1.09, 0.27, 10 q = 0.7893
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 10 22 00 18.2 -44 12 43 0.1715 0.8566 38.8 134.0 32.9
...
2021 01 25 22 14 16.9 -46 09 56 0.08294 0.9174 34.7 142.4 32.5
...
2021 02 02 22 16 29.6 -46 41 22 0.03859 0.9535 33.5 145.2 31.4
...
2021 02 08 22 13 51.0 -45 30 22 0.0059310.9814 32.0 147.8 27.8
2021 02 09 21 43 36.8 -26 17 54 0.0004680.9861 12.0 168.0 29.4
2021 02 10 09 49 34.8 +30 56 44 0.0051000.9917 163.1 16.8 20.3
...
2021 02 16 09 47 18.5 +29 09 19 0.03786 1.0242 163.1 16.3 24.8
...
2021 02 24 09 47 44.2 +28 36 26 0.08268 1.0670 158.7 19.7 26.6
...
2021 03 11 09 51 51.6 +27 06 21 0.1734 1.1440 147.9 27.5 28.6
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-C167
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