MPEC 2023-R79 : 2021 UV9
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M.P.E.C. 2023-R79 Issued 2023 September 9, 14:11 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 UV9
Revision to MPEC 2021-V63
Additional Observations:
K21U09V C2023 07 26.43552322 02 27.746+20 51 03.82 22.97GVER079F52
K21U09V C2023 07 26.45997422 02 28.492+20 51 39.85 22.92GVER079F52
K21U09V C2023 07 26.46389022 02 28.629+20 51 46.07 23.94GVER079F52
K21U09V C2023 09 08.32352522 27 01.383+31 47 43.62 23.01wXER079F52
K21U09V C2023 09 08.33495622 27 01.815+31 47 42.94 22.34wXER079F52
K21U09V C2023 09 08.34639422 27 02.239+31 47 42.28 21.91wXER079F52
K21U09V C2023 09 08.35788822 27 02.669+31 47 41.48 22.19wXER079F52
Observer details:
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, P. Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J.
Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers,
T. de Boer, J. Bulger, H. Gao, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez,
A. Schultz, I. Smith. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230726 F52 0.26+ 0.06+ 230908 F52 0.50+ 0.20+ MPO750185 +0.03 days
Orbital elements:
2021 UV9 Earth MOID = 0.1545 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 344.21801 (2000.0) P Q
n 0.48671875 Peri. 165.62269 +0.94526106 -0.31474241
a 1.6006044 Node 213.12247 +0.28165792 +0.92024794
e 0.2827660 Incl. 9.06918 +0.16477361 +0.23255311
P 2.03 H 23.91 G 0.15 U 1
Residuals in seconds of arc
210928 F52 0.1+ 0.3- 211031 F51 0.1+ 0.0 211111 F51 0.0 0.0
210928 F52 0.2+ 0.0 211101 033 0.1+ 0.1- 211111 F51 0.1+ 0.0
210928 F52 0.4- 0.1- 211101 033 0.4+ 0.1+ 211115 V06 0.1- 0.2+
210928 F52 0.0 0.0 211101 033 0.2+ 0.2+ 211115 V06 0.2- 0.0
211003 F52 0.1- 0.2- 211101 H21 0.1+ 0.1+ 211115 V06 0.7- 0.5+
211003 F52 0.2+ 0.2- 211101 H21 0.2- 0.1- 211115 V06 0.3- 0.3-
211003 F52 0.1+ 0.1+ 211101 H21 0.1- 0.1- 211123 F51 0.5- 0.2+
211014 F51 0.0 0.3+ 211103 691 0.5- 0.3- 211123 F51 0.5- 0.1-
211014 F51 0.1- 0.0 211103 691 1.0- 1.9- 211123 F51 0.3- 0.5+
211027 F52 0.3- 0.5+ 211106 F51 0.0 0.0 211126 F52 0.0 0.1-
211028 F52 0.3+ 0.1- 211106 F51 0.1+ 0.0 211130 807 0.1+ 0.3-
211028 F52 0.3+ 0.0 211106 F51 0.2- 0.2+ 211130 807 0.4+ 0.4-
211028 F52 0.1+ 0.2- 211106 F51 0.6- 0.3- 211130 807 0.4+ 0.3-
211028 F52 0.2- 0.3+ 211109 V06 0.4+ 0.2+ 230726 F52 0.1+ 0.0
211031 F52 0.0 0.1+ 211109 V06 0.4- 0.4+ 230726 F52 0.3- 0.4-
211031 F52 0.2+ 0.1- 211111 V06 0.1- 0.4+ 230726 F52 0.1- 0.1+
211031 F52 0.0 0.1+ 211111 V06 0.4+ 1.3+ 230908 F52 0.1+ 0.0
211031 F52 0.0 0.1+ 211111 V06 0.1+ 0.9+ 230908 F52 0.2+ 0.0
211031 F52 0.2- 0.1+ 211111 V06 0.5+ 0.8- 230908 F52 0.2+ 0.1+
211031 F52 0.2- 0.0 211111 F51 0.0 0.0 230908 F52 0.3+ 0.1+
211031 F51 0.1+ 0.0 211111 F51 0.1- 0.1+
Ephemeris:
2021 UV9 a,e,i = 1.60, 0.28, 9 q = 1.1480
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 08 10 22 10 44.1 +26 23 47 0.3308 1.2722 135.8 33.7 23.4
...
2023 08 25 22 17 33.4 +30 31 18 0.2697 1.2259 138.4 33.2 22.9
...
2023 09 02 22 22 06.6 +31 37 55 0.2424 1.2047 139.9 32.7 22.6
...
2023 09 08 22 26 42.7 +31 48 12 0.2242 1.1907 141.2 32.0 22.4
2023 09 09 22 27 36.8 +31 46 05 0.2213 1.1885 141.4 31.9 22.4
2023 09 10 22 28 33.7 +31 42 49 0.2185 1.1864 141.7 31.8 22.3
...
2023 09 16 22 35 20.7 +30 57 05 0.2028 1.1748 143.4 30.7 22.1
...
2023 09 24 22 47 56.2 +28 40 47 0.1852 1.1624 146.5 28.5 21.8
...
2023 10 09 23 23 43.3 +20 24 37 0.1653 1.1493 153.4 22.9 21.4
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-R79
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