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
2024-07-24 23:17:19 C 17 28 15.77 +15 59 34.5 V 118
2024-07-25 00:06:22 B 17 28 18.45 +15 59 33.7 Z M61
2024-07-25 00:11:41 B 17 28 18.78 +15 59 33.5 Z M61
2024-07-25 00:16:05 B 17 28 19.07 +15 59 32.2 Z M61
2024-07-25 01:13:17 B 17 28 22.51 +15 59 59.0 Z X86
2024-07-25 01:20:20 B 17 28 22.91 +15 59 58.8 Z X86
2024-07-25 01:26:22 B 17 28 23.26 +15 59 58.2 Z X86
2024-07-25 19:32:36 C 17 29 21.79 +15 59 08.4 V C40
2024-07-25 19:32:45 C 17 29 22.14 +15 59 07.4 X G02
2024-07-25 19:35:24 C 17 29 21.93 +15 59 08.4 V C40
2024-07-25 19:38:11 C 17 29 22.07 +15 59 08.1 V C40
2024-07-25 19:38:20 C 17 29 22.41 +15 59 07.1 X G02
2024-07-25 19:40:59 C 17 29 22.21 +15 59 08.1 V C40
2024-07-25 19:43:45 C 17 29 22.34 +15 59 08.0 V C40
2024-07-25 19:43:55 C 17 29 22.69 +15 59 06.8 X G02
2024-07-25 19:46:33 C 17 29 22.48 +15 59 07.8 V C40
2024-07-25 19:49:22 C 17 29 22.61 +15 59 07.9 V C40
2024-07-25 19:52:08 C 17 29 22.75 +15 59 07.7 V C40
2024-07-25 19:54:56 C 17 29 22.89 +15 59 07.6 V C40
2024-07-25 19:57:44 C 17 29 23.03 +15 59 07.5 V C40
2024-07-25 20:00:31 C 17 29 23.17 +15 59 07.4 V C40
2024-07-25 20:03:19 C 17 29 23.30 +15 59 07.2 V C40
2024-07-25 20:31:28 B 17 29 25.085 +15 59 07.59 V L92
2024-07-25 20:40:38 B 17 29 25.446 +15 59 08.79 V L92
2024-07-25 20:50:49 B 17 29 26.004 +15 59 07.96 V L92
2024-07-25 20:59:19 C 17 29 26.498 +15 59 05.82 V B38
2024-07-25 21:01:01 B 17 29 26.441 +15 59 07.15 V L92
2024-07-25 21:02:29 C 17 29 26.57 +15 59 04.3 V 118
2024-07-25 21:07:24 C 17 29 26.894 +15 59 05.46 V B38
2024-07-25 21:11:12 B 17 29 26.941 +15 59 06.86 V L92
2024-07-25 21:14:25 C 17 29 27.228 +15 59 05.24 V B38
2024-07-25 22:28:04 C 17 29 30.79 +15 59 00.5 V 118
2024-07-25 23:23:53 C 17 29 33.58 +15 58 57.8 V 118
2024-07-26 11:09:01 C 17 30 10.315 +15 58 35.29 V T05
2024-07-26 11:13:35 C 17 30 10.538 +15 58 35.04 V T05
2024-07-26 11:28:16 C 17 30 11.261 +15 58 33.85 V T05
2024-07-26 11:36:23 C 17 30 11.664 +15 58 33.35 V T05
2024-07-26 20:45:35 C 17 30 41.02 +15 57 57.5 V L54
2024-07-26 20:57:50 C 17 30 41.70 +15 57 56.0 V 118
2024-07-26 21:11:37 B 17 30 42.329 +15 57 58.44 V L92
2024-07-26 21:20:48 B 17 30 42.793 +15 57 57.17 V L92
2024-07-26 21:30:59 B 17 30 43.221 +15 57 55.83 V L92
2024-07-26 21:41:11 B 17 30 43.578 +15 57 56.31 V L92
2024-07-26 21:46:13 C 17 30 44.02 +15 57 52.9 V 118
2024-07-26 21:46:17 B 17 30 43.952 +15 57 55.10 V L92
2024-07-26 21:51:23 B 17 30 44.212 +15 57 54.75 V L92
2024-07-26 21:52:24 C 17 30 44.21 +15 57 53.1 V L54
2024-07-26 22:30:54 C 17 30 46.17 +15 57 49.8 V 118
2024-07-26 23:19:17 C 17 30 48.52 +15 57 46.3 V 118
2024-07-27 00:01:17 C 17 30 50.50 +15 57 43.5 V L54
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)