[Iaude] MPEC E90: 2021 CP2 [a=0.97,e=0.28,i=8.4,H=23.03]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Fri Mar 4 09:05:05 EST 2022
M.P.E.C. 2022-E90 Issued 2022 March 4, 14:03 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 CP2
Revision to MPEC 2021-C91
Additional Observations:
K21C02P C2021 04 07.25409508 01 12.541+04 42 26.73 22.20GVEE090F51
K21C02P C2021 04 07.26524608 01 11.725+04 42 19.83 22.51GVEE090F51
K21C02P C2021 04 07.27638008 01 10.893+04 42 12.18 22.22GVEE090F51
K21C02P C2021 04 11.29743907 57 32.346+03 59 37.49 22.16GVEE090F52
K21C02P C2022 03 01.53436013 15 25.863-17 42 17.93 21.27GVEE090F52
K21C02P KC2022 03 02.41663 13 14 43.10 -18 19 22.7 oEE090291
K21C02P KC2022 03 02.42247 13 14 42.73 -18 19 36.7 21.1 RoEE090291
K21C02P KC2022 03 02.42829 13 14 42.37 -18 19 51.6 oEE090291
K21C02P |C2022 03 03.27052 13 13 56.82 -18 55 38.7 21.1 GVEE090807
K21C02P |C2022 03 03.27791 13 13 56.28 -18 55 58.4 21.1 GVEE090807
K21C02P |C2022 03 03.28530 13 13 55.74 -18 56 17.9 21.2 GVEE090807
Observer details:
291 LPL/Spacewatch II. Observer J. V. Scotti. 1.8-m f/2.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 1.00-m f/10.0 astrograph + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. 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, I. Smith. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
210407 F51 0.1+ 0.1+ 220303 807 5.2+ 0.2+ MPO606151 +0.01 days
Orbital elements:
2021 CP2 Earth MOID = 0.1030 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 192.95815 (2000.0) P Q
n 1.03016509 Peri. 339.59985 +0.71829615 +0.69322975
a 0.9709529 Node 336.18977 -0.61634221 +0.59468048
e 0.2795858 Incl. 8.40620 -0.32275830 +0.40717028
P 0.96 H 23.03 G 0.15 U 2
Residuals in seconds of arc
210206 G96 0.1- 0.1- 210213 I52 0.3+ 0.2+ 210306 G96 0.2+ 0.2+
210206 G96 0.1- 0.2+ 210213 I52 0.0 0.0 210306 G96 0.4+ 0.4+
210206 G96 0.1+ 0.0 210216 691 0.3- 0.1- 210306 G96 0.0 0.1-
210206 V06 0.0 0.1- 210216 691 0.6- 0.4- 210311 I52 0.1+ 0.2+
210206 V06 0.4+ 0.3+ 210216 691 0.2- 0.0 210311 I52 0.0 0.8+
210206 V06 0.5+ 0.2- 210217 F52 0.1- 0.1+ 210311 I52 0.4- 0.0
210207 807 0.1- 0.1- 210217 F52 0.2- 0.1+ 210311 I52 0.0 0.1+
210207 807 0.1+ 0.2- 210217 F52 0.1- 0.0 210321 H21 0.2- 0.4-
210207 807 0.0 0.1- 210217 F52 0.1+ 0.2+ 210321 H21 0.2+ 0.6-
210207 V06 0.1+ 0.2- 210221 I52 0.2- 0.1+ 210321 H21 0.2- 0.4-
210207 V06 0.0 0.2+ 210221 I52 0.7- 0.2+ 210407 F51 0.2- 0.0
210207 V06 0.1+ 0.0 210222 I52 0.7+ 0.3+ 210407 F51 0.0 0.3+
210208 V06 0.2- 0.2+ 210222 I52 0.0 0.0 210407 F51 0.0 0.2-
210208 V06 0.1+ 0.0 210222 I52 0.1+ 0.4- 210411 F52 0.3+ 0.0
210208 V06 0.1- 0.1+ 210222 I52 0.0 0.1- 220301 F52 0.1+ 0.1+
210212 F51 0.0 0.1- 210302 I52 0.4+ 0.4- 220302 291 0.5- 0.8-
210212 F51 0.1+ 0.0 210302 I52 0.3+ 0.8- 220302 291 0.3- 0.1+
210212 F51 0.1+ 0.1- 210302 I52 0.1- 0.8+ 220302 291 0.1+ 0.0
210212 F51 0.0 0.0 210303 I52 0.2- 0.1- 220303 807 0.0 0.2+
210213 691 (0.6- 1.0+) 210303 I52 0.1- 0.3+ 220303 807 0.0 0.0
210213 691 0.3+ 0.3- 210303 I52 0.2+ 0.1- 220303 807 0.0 0.0
210213 I52 0.4- 0.1- 210306 G96 0.2- 0.1-
Ephemeris:
2021 CP2 a,e,i = 0.97, 0.28, 8 q = 0.6995
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2022 02 02 13 07 32.0 -04 40 28 0.4204 1.2263 115.4 46.5 23.4
...
2022 02 17 13 17 29.1 -10 37 14 0.3148 1.2006 126.1 41.7 22.5
...
2022 02 25 13 17 43.6 -14 48 42 0.2623 1.1821 132.2 38.3 22.0
...
2022 03 03 13 14 11.8 -18 43 56 0.2255 1.1660 136.9 35.5 21.6
2022 03 04 13 13 11.9 -19 28 11 0.2197 1.1632 137.6 35.1 21.5
2022 03 05 13 12 03.8 -20 14 07 0.2139 1.1603 138.4 34.6 21.4
...
2022 03 11 13 01 47.8 -25 29 44 0.1813 1.1418 142.1 32.3 21.0
...
2022 03 19 12 34 19.2 -34 42 02 0.1445 1.1145 143.2 32.3 20.4
...
2022 04 03 09 54 50.8 -55 16 14 0.1058 1.0552 119.1 55.8 20.3
A. U. Tomatic (C) Copyright 2022 MPC M.P.E.C. 2022-E90
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