[Iaude] MPEC Y65: 2021 UP [a=1.56,e=0.40,i=8.6,H=25.61]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Wed Dec 20 09:10:29 EST 2023
M.P.E.C. 2023-Y65 Issued 2023 December 20, 14:09 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 UP
Revision to MPEC 2021-U55
Additional Observations:
K21U00P &C2023 10 13.35691707 25 10.470+28 18 33.84 24.7 GVEY065309
K21U00P &C2023 10 13.36224807 25 10.739+28 18 42.91 25.3 GVEY065309
K21U00P 0C2023 12 10.59103106 17 49.930+47 19 17.33 25.80GVEY065T12
Observer details:
309 Cerro Paranal. Observers O. Hainaut, M. Micheli, L. Conversi. Measurers
M. Micheli, O. Hainaut. 8.2-m VLT UT1 + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea. Observer D. J. Tholen.
2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
231013 309 0.02+ 0.01+ 231210 T12 0.12+ 0.02+ E2021-Y53 +0.07 days
Orbital elements:
2021 UP Earth MOID = 0.0017 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 6.53827 (2000.0) P Q
n 0.50407034 Peri. 320.93744 +0.96416928 +0.25803547
a 1.5636586 Node 24.32229 -0.19002122 +0.83378618
e 0.4016624 Incl. 8.60239 -0.18512032 +0.48807612
P 1.96 H 25.61 G 0.15 U 1
Residuals in seconds of arc
211019 T08 0.1+ 0.5- 211021 J95 0.1- 0.1- 211103 291 0.3+ 0.4+
211019 T08 0.8- 0.3- 211021 J95 0.2+ 0.3- 211103 291 0.0 0.2+
211019 T08 0.3+ 0.1- 211021 J95 0.2- 0.1+ 211104 291 0.1+ 0.1-
211019 T08 0.5- 0.5+ 211021 G02 0.6+ 0.5- 211104 291 0.1+ 0.0
211019 T08 0.9+ 0.3+ 211021 G02 0.0 0.1+ 211104 291 0.1- 0.0
211019 104 0.6+ 0.2- 211021 G02 0.5+ 0.4- 211105 291 0.1+ 0.0
211019 104 0.1- 0.0 211021 Z99 0.2+ 0.0 211105 291 0.0 0.0
211019 104 0.3+ 0.5+ 211021 Z99 0.3+ 0.0 211105 291 0.4- 0.2-
211019 L01 0.2+ 0.1- 211021 Z99 0.2- 0.1- 211107 291 0.1+ 0.1-
211019 104 0.1- 0.5+ 211027 291 0.1- 0.4+ 211107 291 0.1- 0.1-
211019 L01 0.2+ 0.2- 211027 291 0.2+ 0.0 211107 291 0.4- 0.2-
211019 L01 0.0 0.1+ 211027 291 0.0 0.3- 211111 T12 0.1+ 0.1+
211019 L01 0.9- 0.4- 211028 291 0.1+ 0.0 211111 T12 0.0 0.1+
211019 L01 0.7- 0.1+ 211028 291 0.1+ 0.0 211111 T12 0.1+ 0.2+
211019 L01 1.0- 0.3+ 211028 291 0.2+ 0.0 211126 G37 0.1- 0.0
211019 204 0.2- 0.1- 211030 291 0.1- 0.0 231013 309 0.0 0.0
211019 204 0.1+ 0.1+ 211030 291 0.4+ 0.5- 231013 309 0.0 0.0
211020 204 0.2- 0.3- 211030 291 0.4- 0.1- 231210 T12 0.1- 0.1+
211020 204 0.1+ 0.1+ 211103 291 0.0 0.3-
Ephemeris:
2021 UP a,e,i = 1.56, 0.40, 9 q = 0.9356
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 11 20 07 14 58.0 +43 20 19 0.3739 1.2585 129.2 37.5 25.5
...
2023 12 05 06 35 24.3 +46 51 20 0.4121 1.3488 146.6 23.7 25.5
...
2023 12 13 06 10 21.1 +47 21 54 0.4446 1.3968 153.6 18.3 25.5
...
2023 12 19 05 52 42.9 +47 06 23 0.4759 1.4324 156.2 16.1 25.6
2023 12 20 05 49 59.6 +47 01 02 0.4817 1.4383 156.4 15.9 25.7
2023 12 21 05 47 20.8 +46 55 00 0.4877 1.4441 156.5 15.8 25.7
...
2023 12 27 05 33 15.0 +46 06 37 0.5273 1.4791 155.4 16.1 25.9
...
2024 01 04 05 19 37.8 +44 40 32 0.5896 1.5249 150.7 18.4 26.3
...
2024 01 19 05 09 17.8 +41 42 53 0.7339 1.6076 138.3 24.0 27.1
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-Y65
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