415029 (2011 UL21)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6537389222 ± 3.55e-09
Semi-major axis (a)2.1223846854 AU ± 1.41e-09
Inclination (i)34.88596290° ± 1.62e-06
Long. of Asc. Node (Ω)275.31456377° ± 3.69e-07
Arg. of Perihelion (ω)284.98018604° ± 9.13e-07
Mean Anomaly (M)177.74570784° ± 2.01e-07
Mean Motion (n)0.3187690303°/day ± 3.18e-10
Perihelion dist (q)0.73489921 AU ± 7.55e-09
Aphelion dist (Q)3.50987016 AU ± 7.89e-09
Orbital Period3.09197629 yr ± 3.09e-09
Physical Parameters
H (abs. magnitude)15.93
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.218″
Uncertainty0
Orbit TypeApollo
MOID0.015855 AU
Observations Used3235
Radar Obs Used3
Oppositions24
Arc Total1989-2024
First Observation Used1989-10-29
Last Observation Used2024-09-28
Observations (4304)
Date Type RA Dec Mag Band Observatory
2024-06-30 21:14:17 C 15 11 30.29 -02 58 27.5 q A48
2024-06-30 21:15:03 C 15 11 31.26 -02 58 17.2 q A48
2024-06-30 21:15:49 C 15 11 32.25 -02 58 07.0 q A48
2024-06-30 21:18:50 C 15 11 34.97 -02 57 27.3 V L54
2024-06-30 21:23:00 C 15 11 41.37 -02 56 30.1 U 104
2024-06-30 21:41:08 C 15 12 03.34 -02 52 37.9 X L18
2024-06-30 21:41:25 C 15 12 03.74 -02 52 33.5 X L18
2024-06-30 21:41:42 C 15 12 04.02 -02 52 30.6 X L18
2024-06-30 21:41:58 C 15 12 04.39 -02 52 27.0 X L18
2024-06-30 21:42:15 C 15 12 04.78 -02 52 23.0 X L18
2024-06-30 21:46:35 B 15 12 11.388 -02 51 18.32 V 160
2024-06-30 21:49:32 B 15 12 13.97 -02 50 49.1 X L99
2024-06-30 21:49:47 B 15 12 15.454 -02 50 36.20 V 160
2024-06-30 21:50:02 B 15 12 14.59 -02 50 42.2 X L99
2024-06-30 21:50:02 C 15 12 15.720 -02 50 33.90 V 598
2024-06-30 21:50:32 B 15 12 15.25 -02 50 35.9 X L99
2024-06-30 21:51:02 B 15 12 15.87 -02 50 29.8 X L99
2024-06-30 21:51:32 B 15 12 16.47 -02 50 22.1 X L99
2024-06-30 21:52:57 B 15 12 19.466 -02 49 54.62 V 160
2024-06-30 21:54:00 C 15 12 20.750 -02 49 41.63 V 598
2024-06-30 21:58:00 C 15 12 25.836 -02 48 48.96 V 598
2024-06-30 22:03:59 C 15 12 33.410 -02 47 30.55 V 598
2024-06-30 22:10:00 C 15 12 41.035 -02 46 11.68 V 598
2024-07-01 02:24:23 V 15 18 04.30 -01 51 52.9 V 270
2024-07-01 02:24:23 v 1 261.56107 +29.57980 270
2024-07-01 02:33:19 V 15 18 14.68 -01 50 01.4 V 270
2024-07-01 02:33:19 v 1 261.56107 +29.57980 270
2024-07-01 03:30:57 V 15 19 20.95 -01 38 41.4 V 270
2024-07-01 03:30:57 v 1 271.56702 +42.95067 270
2024-07-01 03:44:16 V 15 19 36.41 -01 36 00.3 V 270
2024-07-01 03:44:16 v 1 271.56702 +42.95067 270
2024-07-01 03:44:40 V 15 19 37.91 -01 35 32.3 V 270
2024-07-01 03:44:40 v 1 261.56107 +29.57980 270
2024-07-01 03:54:44 V 15 19 49.52 -01 33 29.5 V 270
2024-07-01 03:54:44 v 1 261.56107 +29.57980 270
2024-07-01 03:57:26 V 15 19 51.73 -01 33 20.3 V 270
2024-07-01 03:57:26 v 1 271.56702 +42.95067 270
2024-07-01 04:10:18 V 15 20 10.16 -01 30 28.5 V 270
2024-07-01 04:10:18 v 1 240.91470 +34.23813 270
2024-07-01 04:10:40 V 15 20 06.98 -01 30 40.9 V 270
2024-07-01 04:10:40 v 1 271.56702 +42.95067 270
2024-07-01 04:32:29 V 15 20 35.64 -01 26 03.6 V 270
2024-07-01 04:32:29 v 1 240.91470 +34.23813 270
2024-07-01 05:04:38 V 15 21 12.32 -01 19 40.1 V 270
2024-07-01 05:04:38 v 1 240.91470 +34.23813 270
2024-07-01 05:27:01 V 15 21 37.63 -01 15 15.3 V 270
2024-07-01 05:27:01 v 1 240.91470 +34.23813 270
2024-07-01 14:17:02 C 15 31 16.53 +00 25 20.4 u 323
2024-07-01 14:17:47 C 15 31 17.19 +00 25 27.7 u 323
2024-07-01 14:26:07 C 15 31 25.55 +00 26 54.3 u 323
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2024-06-26 23:40:00 46095708 20 us 8560 -14 -14
2024-06-27 00:10:00 46009798 2 us 8560 -14 -14
2024-06-29 02:00:00 47980230.07 3 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)