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
2024-07-12 08:13:20 C 17 04 17.138 +14 33 50.58 V T08
2024-07-12 08:23:12 C 17 04 18.278 +14 33 58.54 V T08
2024-07-12 08:33:41 C 17 04 19.488 +14 34 07.00 V T08
2024-07-12 08:38:06 C 17 04 20.004 +14 34 10.45 V T08
2024-07-12 09:20:11 V 17 04 26.93 +14 35 12.1 V 270
2024-07-12 09:20:11 v 1 151.94314 -27.45582 270
2024-07-12 09:33:57 V 17 04 28.63 +14 35 24.1 V 270
2024-07-12 09:33:57 v 1 151.94314 -27.45582 270
2024-07-12 09:46:52 V 17 04 30.13 +14 35 34.5 V 270
2024-07-12 09:46:52 v 1 151.94314 -27.45582 270
2024-07-12 09:59:46 V 17 04 31.64 +14 35 45.1 V 270
2024-07-12 09:59:46 v 1 151.94314 -27.45582 270
2024-07-12 21:28:09 B 17 05 54.507 +14 43 49.00 V L92
2024-07-12 21:30:12 B 17 05 54.771 +14 43 50.38 V L92
2024-07-12 21:32:14 B 17 05 54.952 +14 43 52.10 V L92
2024-07-12 21:34:17 B 17 05 55.223 +14 43 53.31 V L92
2024-07-12 21:36:19 B 17 05 55.422 +14 43 54.93 V L92
2024-07-12 21:38:21 B 17 05 55.649 +14 43 56.32 V L92
2024-07-12 21:40:24 B 17 05 55.832 +14 43 58.18 V L92
2024-07-12 21:42:26 B 17 05 56.122 +14 43 59.44 V L92
2024-07-12 21:44:28 B 17 05 56.365 +14 44 01.83 V L92
2024-07-12 21:46:30 B 17 05 56.528 +14 44 02.32 V L92
2024-07-12 21:48:33 B 17 05 56.762 +14 44 03.83 V L92
2024-07-12 21:50:35 B 17 05 56.985 +14 44 05.20 V L92
2024-07-12 21:52:38 B 17 05 57.253 +14 44 06.79 V L92
2024-07-12 21:54:40 B 17 05 57.455 +14 44 08.12 V L92
2024-07-12 21:56:42 B 17 05 57.679 +14 44 09.67 V L92
2024-07-12 21:58:45 B 17 05 57.901 +14 44 11.03 V L92
2024-07-12 22:00:47 B 17 05 58.103 +14 44 12.41 V L92
2024-07-12 22:02:49 B 17 05 58.330 +14 44 13.97 V L92
2024-07-12 22:04:51 B 17 05 58.632 +14 44 15.44 V L92
2024-07-12 22:06:54 B 17 05 58.823 +14 44 17.37 V L92
2024-07-12 23:03:26 C 17 06 04.421 +14 45 00.39 W M01
2024-07-12 23:05:56 C 17 06 04.705 +14 45 02.12 W M01
2024-07-12 23:08:26 C 17 06 04.990 +14 45 03.85 W M01
2024-07-13 02:21:47 B 17 06 29.22 +14 47 46.8 Z X33
2024-07-13 02:24:19 B 17 06 29.43 +14 47 47.5 Z X33
2024-07-13 02:26:52 B 17 06 29.71 +14 47 50.1 Z X33
2024-07-13 03:18:13 B 17 06 37.00 +14 48 03.5 V38
2024-07-13 03:25:58 B 17 06 37.83 +14 48 09.2 V38
2024-07-13 15:49:47 C 17 08 00.725 +14 56 42.38 15.0 V O55
2024-07-13 16:21:52 C 17 08 03.942 +14 57 02.29 15.1 V O55
2024-07-13 16:29:20 C 17 08 04.686 +14 57 06.94 14.9 V O55
2024-07-13 16:53:43 C 17 08 07.118 +14 57 21.70 15.0 V O55
2024-07-13 17:08:30 C 17 08 08.626 +14 57 30.68 14.9 V O55
2024-07-13 17:25:42 C 17 08 10.317 +14 57 40.90 15.3 V O55
2024-07-13 18:35:47 C 17 08 19.963 +14 58 09.23 W M01
2024-07-13 18:38:17 C 17 08 20.213 +14 58 10.81 W M01
2024-07-13 18:38:17 C 17 08 20.231 +14 58 11.10 W M01
2024-07-13 18:40:47 C 17 08 20.464 +14 58 12.40 W M01
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)