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
2024-07-15 20:36:41 C 17 13 16.52 +15 23 44.7 V C40
2024-07-15 20:39:28 C 17 13 16.76 +15 23 45.8 V C40
2024-07-15 20:41:29 C 17 13 17.592 +15 23 47.36 q M19
2024-07-15 20:42:16 C 17 13 16.99 +15 23 46.9 V C40
2024-07-15 20:51:35 C 17 13 18.434 +15 23 51.54 q M19
2024-07-15 21:00:31 C 17 13 19.178 +15 23 55.32 q M19
2024-07-15 21:08:21 C 17 13 19.831 +15 23 58.52 q M19
2024-07-15 21:14:49 B 17 13 20.287 +15 24 03.72 V L92
2024-07-15 21:18:54 B 17 13 20.653 +15 24 06.04 V L92
2024-07-15 21:24:00 B 17 13 21.101 +15 24 08.00 V L92
2024-07-15 21:25:48 C 17 13 21.30 +15 24 03.2 Y 557
2024-07-15 21:30:47 C 17 13 21.518 +15 24 05.80 Z M38
2024-07-15 21:33:21 C 17 13 21.749 +15 24 07.42 Z M38
2024-07-15 21:35:53 C 17 13 21.955 +15 24 07.99 Z M38
2024-07-15 21:51:00 B 17 13 23.315 +15 24 18.77 V L92
2024-07-15 21:55:05 B 17 13 23.629 +15 24 20.44 V L92
2024-07-15 22:00:11 B 17 13 24.062 +15 24 22.38 V L92
2024-07-15 22:05:17 B 17 13 24.522 +15 24 24.99 V L92
2024-07-15 22:10:22 B 17 13 24.902 +15 24 25.55 V L92
2024-07-15 22:15:29 B 17 13 25.303 +15 24 28.31 V L92
2024-07-15 22:20:34 B 17 13 25.726 +15 24 30.64 V L92
2024-07-15 22:20:40 C 17 13 25.92 +15 24 25.6 Y 557
2024-07-15 22:25:40 B 17 13 26.176 +15 24 33.04 V L92
2024-07-15 22:30:46 B 17 13 26.542 +15 24 34.02 V L92
2024-07-15 22:35:52 B 17 13 27.078 +15 24 35.96 V L92
2024-07-15 22:40:58 B 17 13 27.415 +15 24 38.54 V L92
2024-07-15 22:46:03 B 17 13 27.884 +15 24 40.52 V L92
2024-07-15 22:51:09 B 17 13 28.300 +15 24 42.88 V L92
2024-07-15 23:18:35 C 17 13 30.81 +15 24 48.7 Y 557
2024-07-16 00:13:28 C 17 13 35.48 +15 25 10.1 Y 557
2024-07-16 01:14:26 C 17 13 40.75 +15 25 33.6 Y 557
2024-07-16 02:16:14 C 17 13 47.606 +15 26 42.32 V W68
2024-07-16 02:20:44 C 17 13 47.971 +15 26 44.02 V W68
2024-07-16 02:29:44 C 17 13 48.691 +15 26 47.62 V W68
2024-07-16 02:56:32 C 17 13 50.846 +15 26 58.20 V W68
2024-07-16 08:56:06 C 17 14 22.159 +15 28 52.82 V T08
2024-07-16 09:00:46 C 17 14 22.526 +15 28 54.55 V T08
2024-07-16 09:09:43 C 17 14 23.227 +15 28 57.83 V T08
2024-07-16 09:24:42 C 17 14 24.398 +15 29 03.37 V T08
2024-07-16 19:53:05 C 17 15 18.34 +15 32 37.5 V C40
2024-07-16 19:55:53 C 17 15 18.57 +15 32 38.5 V C40
2024-07-16 19:58:41 C 17 15 18.78 +15 32 39.5 V C40
2024-07-16 20:01:28 C 17 15 19.00 +15 32 40.3 V C40
2024-07-16 20:04:16 C 17 15 19.21 +15 32 41.4 V C40
2024-07-16 20:07:03 C 17 15 19.43 +15 32 42.3 V C40
2024-07-16 20:09:51 C 17 15 19.65 +15 32 43.3 V C40
2024-07-16 20:12:40 C 17 15 19.87 +15 32 44.1 V C40
2024-07-16 20:15:26 C 17 15 20.08 +15 32 45.1 V C40
2024-07-16 20:18:14 C 17 15 20.30 +15 32 46.2 V C40
2024-07-16 20:21:02 C 17 15 20.53 +15 32 47.1 V C40
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)