MPEC 2021-A98 : 2020 CZ2
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M.P.E.C. 2021-A98 Issued 2021 January 9, 21:38 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
2020 CZ2
Revision to MPEC 2020-D32
Additional Observations:
K20C02Z C2017 03 21.54682315 57 58.058-35 22 34.22 21.68GVEA098F51
K20C02Z C2018 02 27.62670114 21 52.775-16 59 36.55 22.19GVEA098F51
K20C02Z C2018 02 27.63730014 21 52.547-16 59 46.62 22.54GVEA098F51
K20C02Z C2018 03 19.51871114 00 49.675-22 01 00.21 21.85GVEA098F51
K20C02Z C2018 03 19.53127514 00 48.098-22 01 11.47 22.19GVEA098F51
K20C02Z C2019 02 04.59087513 33 12.139-00 38 29.38 23.18GVEA098F52
K20C02Z C2019 02 04.62603813 33 11.487-00 38 42.80 22.98GVEA098F52
K20C02Z C2019 03 28.39781411 41 26.997-02 19 20.85 21.54GVEA098F51
K20C02Z C2019 03 28.40905411 41 24.670-02 19 19.51 21.59GVEA098F51
K20C02Z C2019 03 28.42029511 41 22.333-02 19 18.14 21.16GVEA098F51
K20C02Z C2019 03 28.43154411 41 20.046-02 19 17.23 21.22GVEA098F51
K20C02Z C2019 04 04.39040311 19 23.636-02 08 16.44 21.55GVEA098F51
K20C02Z C2019 04 04.40161911 19 21.596-02 08 15.44 21.65GVEA098F51
K20C02Z C2019 04 04.41284111 19 19.527-02 08 14.35 21.32GVEA098F51
K20C02Z C2019 04 10.26585611 03 28.978-02 01 47.53 22.18GVEA098F51
K20C02Z C2019 04 10.27702011 03 27.260-02 01 47.12 21.77GVEA098F51
K20C02Z C2019 04 10.28820911 03 25.524-02 01 46.17 21.89GVEA098F51
K20C02Z C2019 05 01.25703110 30 47.872-02 22 44.39 21.78GVEA098F51
K20C02Z C2019 05 01.28297010 30 46.648-02 22 48.96 22.60GVEA098F51
K20C02Z C2019 05 01.29619610 30 46.013-02 22 50.96 22.20GVEA098F51
K20C02Z C2020 01 22.57670413 05 25.425+17 28 55.53 21.77GVEA098F51
K20C02Z C2020 01 22.57852813 05 25.292+17 28 56.68 21.60GVEA098F51
K20C02Z C2020 01 26.60222613 00 43.739+17 48 00.52 21.01GVEA098F51
K20C02Z C2020 01 29.65226412 56 10.216+18 05 24.27 21.68GVEA098F51
K20C02Z C2020 02 03.43536 12 47 10.26 +18 36 44.2 21.5 GVEA098G96
K20C02Z C2020 02 03.44005 12 47 09.67 +18 36 47.4 VEA098G96
K20C02Z C2020 03 23.39026410 06 22.728+17 54 13.58 22.20GVEA098F51
K20C02Z C2020 03 23.40481510 06 20.770+17 54 03.38 22.21GVEA098F51
K20C02Z C2020 03 23.41943310 06 18.789+17 53 52.63 22.10GVEA098F51
K20C02Z C2020 03 23.43406910 06 16.828+17 53 42.29 21.71GVEA098F51
K20C02Z C2020 03 24.41804510 04 13.352+17 42 09.27 21.56GVEA098F51
K20C02Z C2020 03 24.41883310 04 13.262+17 42 08.67 21.61GVEA098F51
K20C02Z C2020 03 24.43264410 04 11.471+17 41 58.94 21.73GVEA098F51
K20C02Z C2020 03 24.44652810 04 09.715+17 41 48.62 21.50GVEA098F51
K20C02Z C2020 04 17.30197209 41 09.165+12 48 16.87 23.22GVEA098F51
K20C02Z KC2021 01 09.51665715 40 19.42 +57 17 14.9 20.13GVEA098I52
K20C02Z KC2021 01 09.52064915 40 17.79 +57 17 31.8 20.22GVEA098I52
K20C02Z KC2021 01 09.52463815 40 16.17 +57 17 47.6 19.97GVEA098I52
K20C02Z KC2021 01 09.52863015 40 14.57 +57 18 04.3 20.11GVEA098I52
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers E. J. Christensen,
B. Gray, D. Rankin, F. C. Shelly. 1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer T. A. Pruyne.
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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
170321 F51 9.2+ 17.1+ 210109 I52 40.1+ 2.3+ E2020-FA7 -0.01 days
Orbital elements:
2020 CZ2 Earth MOID = 0.2405 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 40.93459 (2000.0) P Q
n 0.91443222 Peri. 2.81870 +0.99962428 -0.02674590
a 1.0512396 Node 358.66886 +0.01724115 +0.78359917
e 0.4198648 Incl. 14.95658 +0.02130804 +0.62069074
P 1.08 H 21.4 G 0.15 U 3
Residuals in seconds of arc
170321 F51 0.6+ 0.2+ 200214 G96 0.4+ 0.3+ 200226 691 0.2- 0.8+
180227 F51 0.4+ 0.7+ 200214 G96 0.5- 0.4- 200226 691 0.1+ 0.4+
180227 F51 0.3+ 0.1- 200214 G96 0.1- 0.3+ 200226 691 0.3+ 1.2+
180319 F51 0.2- 0.1- 200215 L01 0.2- 0.2- 200304 V06 0.6+ 0.2+
180319 F51 0.0 0.1- 200215 L01 0.1+ 0.5- 200304 V06 0.1+ 0.5+
190204 F52 0.1+ 0.1- 200215 L01 0.4+ 0.7- 200304 V06 0.8- 0.1+
190204 F52 0.2+ 0.2- 200215 L01 0.2+ 0.1- 200304 V06 0.4- 1.1-
190328 F51 0.2- 0.3- 200215 H21 0.3+ 0.2+ 200316 807 0.2- 0.3-
190328 F51 0.2- 0.1- 200215 H21 0.1- 0.1+ 200316 807 0.2- 0.1-
190328 F51 0.5- 0.2+ 200215 H21 0.4+ 0.4- 200316 807 0.0 0.3-
190328 F51 0.1+ 0.1- 200216 I52 0.4- 0.4- 200322 H21 0.1- 0.4+
190404 F51 0.1- 0.0 200216 I52 0.0 0.2- 200322 H21 0.3+ 0.1-
190404 F51 0.1+ 0.0 200216 I52 0.2+ 0.0 200322 H21 0.3+ 0.4+
190404 F51 0.2- 0.2+ 200216 I52 0.1+ 0.1+ 200323 F51 0.1- 0.1+
190410 F51 0.0 0.1+ 200217 G96 0.1+ 0.0 200323 F51 0.1+ 0.2+
190410 F51 0.0 0.0 200217 G96 0.3+ 0.0 200323 F51 0.1- 0.2-
190410 F51 0.2- 0.5+ 200217 G96 0.0 0.0 200323 F51 0.1+ 0.1-
190501 F51 0.1- 0.1+ 200217 G96 0.0 0.1- 200324 F51 0.1- 0.2-
190501 F51 0.2+ 0.1- 200218 I52 0.1- 0.3- 200324 F51 0.0 0.3-
190501 F51 0.2+ 0.2+ 200218 I52 0.1- 0.6- 200324 F51 0.3- 0.0
200122 F51 0.2+ 0.0 200218 I52 0.4- 0.3- 200324 F51 0.0 0.3-
200122 F51 0.0 0.7+ 200226 I52 0.1- 0.0 200417 F51 0.1- 0.2+
200126 F51 0.1- 0.6+ 200226 I52 0.1+ 1.1+ 210109 I52 0.5+ 0.1-
200129 F51 0.1- 0.2- 200226 I52 0.8+ 1.2- 210109 I52 0.1+ 0.3+
200203 G96 0.5- 1.2- 200226 711 0.8+ 0.1+ 210109 I52 0.1- 0.5-
200203 G96 0.1+ 0.1+ 200226 711 0.7+ 0.9- 210109 I52 0.2- 0.3-
200214 G96 0.4- 0.9- 200226 711 1.9+ 0.2+
Ephemeris:
2020 CZ2 a,e,i = 1.05, 0.42, 15 q = 0.6099
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 10 17 21 13.6 +19 33 09 0.2975 0.7918 42.6 122.7 23.3
...
2020 12 25 16 46 04.7 +39 02 42 0.2656 0.9075 65.8 98.7 21.9
...
2021 01 02 16 18 28.3 +48 37 26 0.2576 0.9685 79.2 85.7 21.4
...
2021 01 08 15 49 28.4 +55 34 21 0.2543 1.0129 89.4 76.1 21.1
2021 01 09 15 43 31.2 +56 42 17 0.2540 1.0202 91.1 74.5 21.1
2021 01 10 15 37 08.7 +57 49 30 0.2538 1.0274 92.8 73.0 21.0
...
2021 01 16 14 47 12.4 +64 06 38 0.2546 1.0697 102.9 63.7 20.8
...
2021 01 24 12 56 31.6 +69 35 07 0.2628 1.1234 115.7 52.2 20.7
...
2021 02 08 09 23 08.5 +63 10 27 0.3090 1.2147 131.9 37.2 20.8
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-A98
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