[Iaude] MPEC E84: 2021 SP3 [a=1.62,e=0.46,i=5.4,H=23.39]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Wed Mar 6 09:12:50 EST 2024
M.P.E.C. 2024-E84 Issued 2024 March 6, 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 SP3
Revision to MPEC 2021-T23
Additional Observations:
K21S03P C2024 02 18.11848 04 48 58.17 -32 08 57.1 20.3 GVEE084I52
K21S03P C2024 02 18.12447 04 49 04.31 -32 08 48.6 21.0 GVEE084I52
K21S03P C2024 03 02.16594 07 58 10.88 -18 16 50.6 VEE084I52
K21S03P C2024 03 02.16723 07 58 11.61 -18 16 44.1 22.2 GVEE084I52
K21S03P KC2024 03 05.17556308 25 03.990-14 45 01.76 20.74GVEE084I52
K21S03P KC2024 03 05.17707908 25 04.649-14 44 55.50 20.16GVEE084I52
K21S03P KC2024 03 05.17859508 25 05.365-14 44 50.14 20.96GVEE084I52
Observer details:
I52 Steward Observatory, Mt. Lemmon Station. Observers J. B. Fazekas, T.
Beuden, R. A. Kowalski, J. K. Hogan. Measurers B. Gray, D. Rankin, F. C.
Shelly, T. Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A.
R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M.
Larson, G. J. Leonard, R. L. Seaman, K. W. Wierzchos. 1.0-m f/2.0 prime
focus + CCD, 1.0-m prime focus + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240218 I52 0.29- 0.32- 240305 I52 0.33- 0.11- E2024-B79 -0.05 days
Orbital elements:
2021 SP3 Earth MOID = 0.0200 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 38.68276 (2000.0) P Q
n 0.47586095 Peri. 243.51285 -0.04698607 -0.99783518
a 1.6248602 Node 209.29159 +0.94669249 -0.02978652
e 0.4598339 Incl. 5.39658 +0.31869365 -0.05863211
P 2.07 H 23.39 G 0.15 U 0
Residuals in seconds of arc
210927 F51 0.1+ 0.2- 211023 595 0.2- 0.1- 211030 U68 0.1- 0.4+
210927 F51 0.1+ 0.1- 211023 595 0.5+ 0.2- 211030 246 2.0+ 0.7-
210927 F51 0.0 0.1+ 211024 807 0.0 0.6- 211030 246 0.1- 0.6+
211002 F52 0.0 0.0 211024 807 0.3- 0.1- 211030 246 0.2+ 0.2-
211002 F52 0.0 0.0 211024 807 0.1+ 0.2- 211030 246 1.6- 0.5+
211002 F52 0.1- 0.1+ 211024 A17 0.2+ 0.5- 211030 246 0.2- 0.1-
211002 F52 0.1- 0.1+ 211024 A17 0.1- 0.3- 211031 I52 0.2+ 0.1-
211002 F51 0.0 0.0 211024 A17 0.2+ 0.3- 211031 I52 0.0 0.1+
211002 F51 0.0 0.0 211026 703 1.3- 0.9+ 211031 I52 0.0 0.2+
211003 F51 0.0 0.0 211026 703 0.1+ 1.2+ 211031 I52 0.2+ 0.1-
211003 F51 0.0 0.0 211026 703 0.3+ 0.9+ 211031 T05 0.2+ 0.1+
211003 F51 0.1- 0.0 211027 807 0.2+ 0.0 211031 T05 0.6- 0.0
211003 F51 0.0 0.0 211027 807 0.3- 0.6- 211031 T05 0.3- 0.6-
211007 G96 0.0 0.2+ 211027 807 0.2+ 0.1- 211031 T05 0.5- 0.3+
211007 G96 0.2+ 0.2+ 211027 F51 0.0 0.0 211101 703 0.6- 0.6+
211007 G96 0.3+ 0.5- 211027 F51 0.0 0.0 211101 703 0.8- 0.5-
211007 G96 0.1+ 0.2+ 211027 F51 0.0 0.0 211101 703 0.5+ 0.1+
211013 F52 0.1- 0.0 211028 703 0.3+ 0.2+ 211101 703 0.2- 0.1+
211013 F52 0.1- 0.0 211028 703 0.5+ 0.3- 211103 C51 (0.8- 1.3-)
211013 F52 0.0 0.0 211028 703 0.0 0.3- 240218 I52 1.1- 0.6+
211013 F52 0.0 0.0 211028 703 0.4- 0.4- 240218 I52 0.7+ 0.3+
211016 807 (0.6- 1.4-) 211029 703 1.6+ 0.7+ 240302 I52 0.4+ 0.8-
211016 807 0.5- 0.3- 211029 703 0.9+ 0.5+ 240302 I52 0.4+ 0.0
211016 807 0.1- 0.4- 211029 703 0.4+ 0.3+ 240305 I52 0.3+ 0.2+
211021 F51 0.3- 0.2- 211029 703 0.8+ 0.6+ 240305 I52 0.2- 0.5+
211021 F51 0.0 0.0 211030 U68 0.3- 0.1- 240305 I52 0.0 0.1-
211021 F51 0.3+ 0.2+ 211030 U68 0.0 0.2+
211023 595 0.4+ 0.4- 211030 U68 0.1+ 0.6-
Ephemeris:
2021 SP3 a,e,i = 1.62, 0.46, 5 q = 0.8777
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 02 05 01 52 58.1 -28 31 41 0.1435 0.9353 65.4 106.6 23.0
...
2024 02 20 05 21 33.6 -31 06 41 0.1037 1.0099 99.0 75.2 21.1
...
2024 02 28 07 23 07.6 -22 18 49 0.1160 1.0576 122.7 52.0 20.8
...
2024 03 05 08 23 37.8 -14 55 59 0.1400 1.0957 135.2 39.6 20.9
2024 03 06 08 31 29.2 -13 50 47 0.1450 1.1022 136.8 38.1 20.9
2024 03 07 08 38 49.5 -12 48 34 0.1501 1.1088 138.2 36.6 21.0
...
2024 03 13 09 14 10.9 -07 36 39 0.1853 1.1488 143.9 30.7 21.4
...
2024 03 21 09 46 10.1 -02 56 30 0.2413 1.2036 146.0 27.6 21.9
...
2024 04 05 10 24 35.1 +01 34 37 0.3682 1.3082 141.3 28.6 23.1
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-E84
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