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
2024-07-17 18:43:22 B 17 17 10.458 +15 40 18.59 Z M49
2024-07-17 19:06:44 C 17 17 11.41 +15 39 53.8 V C40
2024-07-17 19:09:32 C 17 17 11.62 +15 39 54.6 V C40
2024-07-17 19:12:19 C 17 17 11.82 +15 39 55.3 V C40
2024-07-17 19:15:06 C 17 17 12.02 +15 39 56.2 V C40
2024-07-17 19:17:54 C 17 17 12.22 +15 39 56.9 V C40
2024-07-17 19:20:41 C 17 17 12.42 +15 39 57.8 V C40
2024-07-17 19:23:28 C 17 17 12.62 +15 39 58.5 V C40
2024-07-17 19:26:16 C 17 17 12.82 +15 39 59.3 V C40
2024-07-17 19:29:02 C 17 17 13.02 +15 40 00.0 V C40
2024-07-17 19:31:49 C 17 17 13.22 +15 40 00.9 V C40
2024-07-17 19:34:37 C 17 17 13.43 +15 40 01.7 V C40
2024-07-17 19:36:12 B 17 17 14.193 +15 40 33.97 Z M49
2024-07-17 19:37:24 C 17 17 13.62 +15 40 02.4 V C40
2024-07-17 19:53:11 C 17 17 15.24 +15 40 04.8 X G02
2024-07-17 19:54:17 C 17 17 14.84 +15 40 06.9 V C40
2024-07-17 19:57:06 C 17 17 15.04 +15 40 07.7 V C40
2024-07-17 19:59:19 C 17 17 15.68 +15 40 06.4 X G02
2024-07-17 19:59:53 C 17 17 15.24 +15 40 08.4 V C40
2024-07-17 20:02:42 C 17 17 15.45 +15 40 09.3 V C40
2024-07-17 20:04:56 C 17 17 16.09 +15 40 08.1 X G02
2024-07-17 20:05:29 C 17 17 15.65 +15 40 10.0 V C40
2024-07-17 20:08:17 C 17 17 15.84 +15 40 10.8 V C40
2024-07-17 20:11:04 C 17 17 16.05 +15 40 11.5 V C40
2024-07-17 20:13:51 C 17 17 16.24 +15 40 12.2 V C40
2024-07-17 20:16:39 C 17 17 16.45 +15 40 13.1 V C40
2024-07-17 20:19:26 C 17 17 16.65 +15 40 13.8 V C40
2024-07-17 20:22:13 C 17 17 16.85 +15 40 14.5 V C40
2024-07-17 20:25:01 C 17 17 17.05 +15 40 15.3 V C40
2024-07-17 20:34:28 B 17 17 18.264 +15 40 50.25 Z M49
2024-07-17 21:28:43 B 17 17 22.058 +15 41 05.02 Z M49
2024-07-17 22:08:16 C 17 17 25.25 +15 40 42.3 V D48
2024-07-17 22:11:29 C 17 17 25.46 +15 40 43.2 V D48
2024-07-17 22:14:39 C 17 17 25.586 +15 40 46.16 X L63
2024-07-17 22:17:57 C 17 17 25.93 +15 40 44.9 V D48
2024-07-17 22:21:32 B 17 17 25.767 +15 41 18.92 Z M49
2024-07-17 23:20:43 C 17 17 30.341 +15 41 03.30 X L63
2024-07-18 00:09:44 B 17 17 35.62 +15 41 41.6 Z X33
2024-07-18 00:11:45 B 17 17 35.80 +15 41 40.2 Z X33
2024-07-18 00:13:48 B 17 17 35.85 +15 41 40.5 Z X33
2024-07-18 01:09:07 C 17 17 38.270 +15 41 30.55 X L63
2024-07-18 19:31:35 B 17 19 02.621 +15 46 32.88 Z M49
2024-07-18 19:36:42 B 17 19 02.958 +15 46 33.86 Z M49
2024-07-18 19:41:50 B 17 19 03.291 +15 46 35.06 Z M49
2024-07-18 20:42:39 B 17 19 07.475 +15 46 15.61 X B72
2024-07-18 20:44:00 B 17 19 07.570 +15 46 16.00 X B72
2024-07-18 20:45:15 B 17 19 07.656 +15 46 16.33 X B72
2024-07-19 01:04:35 B 17 19 26.88 +15 47 47.1 W89
2024-07-19 01:17:21 B 17 19 27.73 +15 47 49.8 W89
2024-07-19 02:42:13 V 17 19 33.42 +15 47 33.8 V 270
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)