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
2024-08-22 22:01:50 C 18 00 32.49 +13 39 52.8 V C40
2024-08-22 22:03:08 C 18 00 32.49 +13 39 52.4 V C40
2024-08-22 22:04:27 C 18 00 32.61 +13 39 51.5 V C40
2024-08-22 22:08:22 C 18 00 32.76 +13 39 50.1 V C40
2024-08-22 22:09:34 C 18 00 32.80 +13 39 50.0 V C40
2024-08-22 22:10:42 C 18 00 32.88 +13 39 49.3 V C40
2024-08-24 06:46:41 C 18 02 04.608 +13 30 53.82 V T08
2024-08-24 06:51:22 C 18 02 04.829 +13 30 52.63 V T08
2024-08-24 07:01:25 C 18 02 05.246 +13 30 49.68 V T08
2024-08-24 07:45:23 C 18 02 07.186 +13 30 37.58 V T08
2024-08-25 21:36:39 C 18 03 54.149 +13 20 02.08 Z C23
2024-08-25 22:04:16 C 18 03 55.442 +13 19 54.73 Z C23
2024-08-26 20:26:38 C 18 04 59.237 +13 13 41.81 Z C23
2024-08-26 21:19:02 C 18 05 01.627 +13 13 26.83 Z C23
2024-08-27 06:06:57 C 18 05 26.995 +13 11 05.06 V T05
2024-08-27 06:11:08 C 18 05 27.194 +13 11 03.73 V T05
2024-08-27 06:29:17 C 18 05 28.001 +13 10 58.69 V T05
2024-08-27 06:35:48 C 18 05 28.286 +13 10 56.57 V T05
2024-08-27 06:37:45 C 18 05 28.394 +13 10 56.32 V T05
2024-08-27 06:40:44 C 18 05 28.555 +13 10 55.63 V T05
2024-08-27 06:53:51 C 18 05 29.105 +13 10 51.56 V T05
2024-08-27 21:08:42 C 18 06 09.850 +13 06 50.11 Z C23
2024-08-27 21:13:01 C 18 06 10.044 +13 06 48.96 Z C23
2024-08-27 21:41:28 C 18 06 11.383 +13 06 40.39 Z C23
2024-08-28 21:04:01 C 18 07 18.734 +13 00 12.10 Z C23
2024-08-28 21:18:13 C 18 07 19.457 +13 00 09.00 Z C23
2024-08-31 06:02:39 C 18 10 04.601 +12 44 31.09 V T05
2024-08-31 06:13:18 C 18 10 05.064 +12 44 27.71 V T05
2024-08-31 06:17:33 C 18 10 05.263 +12 44 26.88 V T05
2024-08-31 06:56:03 C 18 10 07.090 +12 44 15.97 V T05
2024-08-31 17:08:59 C 18 10 37.14 +12 41 24.4 V C40
2024-08-31 17:12:02 C 18 10 37.23 +12 41 23.0 V C40
2024-08-31 17:21:09 C 18 10 37.69 +12 41 20.6 V C40
2024-08-31 17:27:15 C 18 10 38.00 +12 41 18.5 V C40
2024-08-31 17:30:16 C 18 10 38.13 +12 41 18.2 V C40
2024-08-31 17:33:19 C 18 10 38.23 +12 41 17.3 V C40
2024-08-31 17:39:22 C 18 10 38.56 +12 41 15.6 V C40
2024-08-31 17:42:24 C 18 10 38.70 +12 41 15.2 V C40
2024-09-01 17:10:10 C 18 11 47.88 +12 34 48.1 V C40
2024-09-01 17:13:13 C 18 11 48.04 +12 34 47.5 V C40
2024-09-01 17:16:16 C 18 11 48.21 +12 34 47.2 V C40
2024-09-01 17:22:21 C 18 11 48.50 +12 34 44.9 V C40
2024-09-01 17:34:32 C 18 11 49.05 +12 34 41.8 V C40
2024-09-01 17:37:34 C 18 11 49.21 +12 34 41.2 V C40
2024-09-01 17:40:37 C 18 11 49.34 +12 34 40.6 V C40
2024-09-01 17:43:40 C 18 11 49.52 +12 34 39.3 V C40
2024-09-01 21:20:52 C 18 12 00.098 +12 33 39.02 Z C23
2024-09-01 22:18:07 C 18 12 02.885 +12 33 23.26 Z C23
2024-09-02 01:45:08 C 18 12 13.130 +12 32 37.57 V W68
2024-09-02 01:54:25 C 18 12 13.603 +12 32 35.16 V W68
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)