MPEC 2023-J142 : 2002 AR4
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M.P.E.C. 2023-J142 Issued 2023 May 14, 14:06 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
2002 AR4
Revision to MPEC 2002-A51
Additional Observations:
K02A04R C2022 10 28.56221108 52 02.823+22 07 03.12 22.18GVEJ142F51
K02A04R C2022 10 28.57613408 52 05.920+22 06 57.15 22.44GVEJ142F51
K02A04R C2022 10 28.59005908 52 09.022+22 06 51.18 22.34GVEJ142F51
K02A04R C2022 10 30.57543908 59 38.695+21 51 33.63 22.78GVEJ142F51
K02A04R C2022 10 30.58766408 59 41.442+21 51 28.13 22.34GVEJ142F51
K02A04R C2022 10 30.59993508 59 44.186+21 51 22.16 22.50GVEJ142F51
K02A04R C2023 05 12.44716216 51 25.888-22 46 11.15 21.77wXEJ142F52
K02A04R C2023 05 12.45735216 51 24.942-22 46 14.23 21.46wXEJ142F52
K02A04R C2023 05 12.47776016 51 23.009-22 46 20.47 21.69wXEJ142F52
K02A04R C2023 05 12.54627416 51 16.569-22 46 40.54 21.22GVEJ142F51
K02A04R C2023 05 12.54709116 51 16.480-22 46 40.78 21.60GVEJ142F51
K02A04R KC2023 05 12.55853316 51 15.86 -22 46 32.6 VEJ142474
K02A04R KC2023 05 12.56205216 51 15.43 -22 46 33.8 VEJ142474
K02A04R KC2023 05 12.56557116 51 15.17 -22 46 35.3 21.3 GVEJ142474
K02A04R KC2023 05 12.56908916 51 14.82 -22 46 35.9 21.7 GVEJ142474
K02A04R KC2023 05 12.57617116 51 14.12 -22 46 38.6 21.7 GVEJ142474
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.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, I.
Smith. Measurers K. Chambers, S. Chastel, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, 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 (or two decimals in degrees), reference and Delta-T
221028 F51 0.27+ 0.06+ 230512 474 0.26+ 0.07+ MPO739995 +0.35 days
Orbital elements:
2002 AR4 Earth MOID = 0.2015 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 8.09023 (2000.0) P Q
n 0.18981516 Peri. 92.97725 -0.88771153 -0.44513847
a 2.9985787 Node 60.61703 +0.35032368 -0.81875758
e 0.6225441 Incl. 7.75363 +0.29873325 -0.36261242
P 5.19 H 19.99 G 0.15 U 0
Residuals in seconds of arc
011217 704 0.6- 0.3+ 020109 046 0.3+ 0.5+ 221028 F51 0.1+ 0.1-
011217 704 0.6+ 0.0 020109 046 0.4+ 0.4+ 221028 F51 0.0 0.1-
011217 704 0.5- 1.3+ 020109 046 0.0 0.4+ 221028 F51 0.1+ 0.1-
011217 704 0.7+ 0.8+ 020109 046 0.1+ 0.4+ 221030 F51 0.2+ 0.0
011217 704 0.3+ 0.0 020120 649 0.3+ 0.0 221030 F51 0.0 0.2+
020108 704 0.2- 0.3+ 020120 649 0.2+ 0.0 221030 F51 0.3- 0.0
020108 704 0.1- 0.2- 020212 696 0.1+ 0.1- 230512 F52 0.1- 0.2+
020108 704 0.5- 0.1- 020212 696 0.5- 0.1+ 230512 F52 0.0 0.2+
020108 704 0.7+ 0.7- 020309 696 0.4- 0.1- 230512 F52 0.1- 0.1+
020109 704 0.6- 1.0+ 020309 696 0.2- 0.5- 230512 F51 0.0 0.1+
020109 704 0.3- 0.4+ 020408 696 0.5- 0.1+ 230512 F51 0.1- 0.1+
020109 704 0.3- 0.5+ 020408 696 0.1- 0.2+ 230512 474 0.9+ 0.7+
020109 704 0.1+ 0.4+ 020506 696 0.3- 0.1- 230512 474 0.5- 0.5+
020109 704 0.6+ 0.4+ 020506 696 0.7+ 1.2- 230512 474 0.4+ 0.1+
020109 046 0.7+ 0.3+ 020606 696 0.4- 0.1- 230512 474 0.1+ 0.5+
020109 046 0.2- 0.5+ 020606 696 0.5+ 0.4- 230512 474 0.5- 0.1-
Ephemeris:
2002 AR4 a,e,i = 3.00, 0.62, 8 q = 1.1318
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 04 14 17 19 30.6 -19 43 40 0.7845 1.5737 122.9 32.3 21.8
...
2023 04 29 17 09 05.1 -21 28 01 0.7900 1.6897 139.9 22.6 21.7
...
2023 05 07 16 59 14.9 -22 17 05 0.8051 1.7525 149.9 16.8 21.6
...
2023 05 13 16 50 36.1 -22 48 46 0.8241 1.7999 157.6 12.3 21.6
2023 05 14 16 49 05.5 -22 53 33 0.8280 1.8078 158.9 11.6 21.6
2023 05 15 16 47 34.1 -22 58 11 0.8321 1.8157 160.2 10.9 21.6
...
2023 05 21 16 38 17.6 -23 22 43 0.8613 1.8631 168.0 6.5 21.5
...
2023 05 29 16 26 14.9 -23 47 05 0.9133 1.9262 177.4 1.4 21.4
...
2023 06 13 16 07 50.7 -24 13 07 1.0515 2.0439 162.8 8.4 22.2
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-J142
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