MPEC 2023-R234 : 2021 VO
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M.P.E.C. 2023-R234 Issued 2023 September 15, 17:17 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 VO
Revision to MPEC 2021-V56
Additional Observations:
K21V00O C2023 09 14.52581402 34 17.469-38 23 42.66 19.90wXER234F52
K21V00O C2023 09 14.53472302 34 17.226-38 23 21.69 19.88wXER234F52
K21V00O C2023 09 14.54365402 34 16.985-38 23 00.80 19.88wXER234F52
K21V00O C2023 09 14.87927 02 34 17.09 -38 08 49.4 19.4 GVER234M28
K21V00O C2023 09 14.88134 02 34 17.05 -38 08 44.7 19.4 GVER234M28
K21V00O C2023 09 14.88340 02 34 17.04 -38 08 39.5 19.6 GVER234M28
K21V00O KC2023 09 15.62323402 34 07.41 -37 38 09.6 19.9 GVER234474
K21V00O KC2023 09 15.62534502 34 07.35 -37 38 04.3 19.3 GVER234474
K21V00O KC2023 09 15.62745602 34 07.31 -37 37 59.0 19.9 GVER234474
K21V00O KC2023 09 15.62956702 34 07.24 -37 37 53.6 19.5 GVER234474
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Bulger, J.
Fairlamb, H. Gao, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, Y.
Ramanjooloo, A. Schultz, I. Smith, R. Wainscoat, R. Weryk. 1.8-m Ritchey-
Chretien + CCD.
M28 Lesedi Telescope-SAAO Observatory, Sutherland. Observers N. Erasmus, S.
Potter, C. van Gend, S. Chandra, H. Worters. Measurers T. Ngwane, N.
Erasmus. 1.0-m f/8 Reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230914 F52 1.13- 1.60- 230915 474 1.18- 1.63- MPO750185 -0.38 days
Orbital elements:
2021 VO Earth MOID = 0.1076 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 344.20565 (2000.0) P Q
n 0.50663615 Peri. 1.08213 +0.93306124 -0.34443708
a 1.5583749 Node 20.04901 +0.32771975 +0.69506015
e 0.2906187 Incl. 17.61227 +0.14831214 +0.63107407
P 1.95 H 21.32 G 0.15 U 1
Residuals in seconds of arc
211030 G96 0.4- 0.1- 211103 654 0.1- 0.2- 211128 I52 0.2+ 0.3+
211030 G96 1.6- 0.7+ 211107 I52 0.3- 0.2+ 211128 I52 0.3- 0.1+
211101 G96 0.3+ 0.4+ 211107 I52 (0.8+ 0.3+) 211201 V06 0.1- 0.2+
211101 G96 0.1+ 0.2- 211107 I52 0.2- 0.5- 211201 V06 0.0 0.3+
211101 G96 0.0 0.2+ 211109 V06 0.0 0.2- 230914 F52 0.2+ 0.0
211101 G96 0.8+ 0.0 211109 V06 0.1- 0.7+ 230914 F52 0.2+ 0.1+
211101 I52 0.4+ 0.3+ 211109 V06 0.2+ 0.5- 230914 F52 0.2+ 0.1+
211101 I52 0.1+ 0.4+ 211111 I52 0.1+ 0.3+ 230914 M28 1.6- 0.6+
211101 I52 0.0 0.1- 211111 I52 0.3+ 0.4+ 230914 M28 1.7- 0.6+
211102 G96 0.1+ 0.3+ 211111 I52 1.1+ 0.0 230914 M28 1.5- 1.1+
211102 G96 0.2- 1.0- 211114 V06 0.2+ 0.2+ 230915 474 0.1- 0.1-
211103 H21 0.7+ 0.4+ 211114 V06 0.3+ 0.3+ 230915 474 0.0 0.1-
211103 H21 0.0 0.3+ 211114 V06 0.2+ 0.3+ 230915 474 0.2+ 0.1-
211103 654 0.1- 0.0 211128 I52 0.6+ 0.1- 230915 474 0.1+ 0.1-
211103 654 0.1- 0.1+ 211128 I52 0.7- 0.3+
Ephemeris:
2021 VO a,e,i = 1.56, 0.29, 18 q = 1.1055
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 08 16 02 03 01.1 -47 20 48 0.3582 1.2159 116.6 48.2 21.3
...
2023 08 31 02 26 26.4 -44 42 25 0.2788 1.1699 118.9 49.1 20.7
...
2023 09 08 02 32 54.9 -41 54 44 0.2371 1.1496 121.5 48.3 20.3
...
2023 09 14 02 34 18.9 -38 43 33 0.2066 1.1366 124.7 46.7 19.9
2023 09 15 02 34 13.4 -38 04 08 0.2016 1.1346 125.4 46.3 19.9
2023 09 16 02 34 02.0 -37 22 08 0.1966 1.1327 126.1 45.8 19.8
...
2023 09 22 02 30 43.8 -32 04 11 0.1681 1.1225 131.5 42.0 19.3
...
2023 09 30 02 20 06.1 -20 52 11 0.1350 1.1125 143.0 32.8 18.6
...
2023 10 15 01 39 30.0 +16 30 45 0.1095 1.1055 170.2 8.9 17.3
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-R234
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