MPEC 2023-L71 : 2021 CD6
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M.P.E.C. 2023-L71 Issued 2023 June 13, 14:07 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 CD6
Revision to MPEC 2021-C236
Additional Observations:
K21C06D 0C2023 06 10.45539516 53 19.553-01 11 25.43 23.66GVEL071T14
K21C06D 0C2023 06 10.46146416 53 19.116-01 11 23.87 23.63GVEL071T14
K21C06D 0C2023 06 10.46753416 53 18.683-01 11 22.30 23.49GVEL071T14
K21C06D 0C2023 06 11.46295916 52 08.539-01 07 07.79 23.59GVEL071T14
K21C06D 0C2023 06 11.46902916 52 08.102-01 07 06.25 23.68GVEL071T14
K21C06D 0C2023 06 11.47509716 52 07.661-01 07 04.76 23.47GVEL071T14
Observer details:
T14 Canada-France-Hawaii Telescope, Maunakea. Observers H. Januszewski, C.
Cunningham. Measurer D. J. Tholen. 3.6-m f/4.1 reflector + 1024 x 2306
pixels Megacam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
230610 T14 2.5+ 0.4+ 230611 T14 2.5+ 0.4+ MPO624184 +0.05 days
Orbital elements:
2021 CD6 PHA, Earth MOID = 0.0126 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 241.69328 (2000.0) P Q
n 0.29639609 Peri. 202.51465 +0.78451864 -0.61540277
a 2.2278592 Node 196.18355 +0.60241947 +0.78551122
e 0.5574036 Incl. 15.87140 +0.14704176 +0.06520390
P 3.33 H 20.33 G 0.15 U 2
Residuals in seconds of arc
201108 F51 0.0 0.0 210212 807 0.2+ 0.2- 210223 695 0.1- 0.1+
201108 F51 0.0 0.1+ 210212 807 0.2+ 0.2- 210225 695 0.1- 0.1-
201108 F51 0.0 0.1+ 210212 807 0.2+ 0.1- 210225 695 0.0 0.2+
210209 G96 0.3+ 0.3+ 210216 V06 0.4- 0.5+ 210225 695 0.2- 0.1-
210209 G96 0.0 0.0 210216 V06 0.4- 1.8+ 210303 807 0.1- 0.2-
210209 G96 0.0 0.1+ 210217 T12 0.1+ 0.0 210303 807 0.3- 0.2-
210209 G96 0.1- 0.2+ 210217 T12 0.1+ 0.1+ 210303 807 0.5+ 0.1+
210209 V06 0.1+ 0.4+ 210218 291 0.7+ 0.2+ 210307 807 0.2+ 0.6-
210209 V06 0.3- 0.2+ 210218 291 0.5- 0.4- 210307 807 0.0 0.2-
210209 V06 0.0 0.1- 210218 291 0.6- 0.3- 210307 807 0.5+ 0.1-
210210 807 0.1- 0.2+ 210219 G37 0.0 0.0 230610 T14 0.0 0.0
210210 807 0.0 0.0 210219 G37 0.1+ 0.0 230610 T14 0.0 0.0
210210 807 0.1+ 0.1+ 210219 G37 0.0 0.1- 230610 T14 0.1+ 0.0
210210 G96 0.3- 0.1- 210219 G37 0.0 0.1- 230611 T14 0.0 0.0
210210 G96 0.1- 0.0 210220 807 0.1+ 0.3- 230611 T14 0.0 0.0
210210 G96 0.4+ 0.0 210220 807 0.1+ 0.3- 230611 T14 0.0 0.0
210211 G96 0.2+ 0.3- 210220 807 0.1+ 0.2-
210211 G96 0.5- 0.1+ 210223 695 0.3- 0.5+
Ephemeris:
2021 CD6 a,e,i = 2.23, 0.56, 16 q = 0.9860
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 05 14 17 21 43.2 -04 01 55 1.9884 2.8898 147.2 10.9 24.8
...
2023 05 29 17 07 30.5 -02 17 56 1.8611 2.8251 157.7 7.8 24.5
...
2023 06 06 16 58 31.7 -01 32 29 1.8182 2.7890 158.9 7.5 24.4
...
2023 06 12 16 51 30.8 -01 04 53 1.7978 2.7612 157.0 8.3 24.4
2023 06 13 16 50 20.4 -01 00 54 1.7954 2.7566 156.5 8.4 24.4
2023 06 14 16 49 10.0 -00 57 07 1.7932 2.7519 155.9 8.7 24.4
...
2023 06 20 16 42 13.2 -00 38 23 1.7860 2.7232 151.6 10.2 24.4
...
2023 06 28 16 33 30.4 -00 24 42 1.7906 2.6841 144.5 12.7 24.5
...
2023 07 13 16 20 19.2 -00 33 23 1.8369 2.6078 129.8 17.4 24.6
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-L71
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