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
2024-07-04 20:36:24 C 16 23 11.12 +08 55 29.0 V C40
2024-07-04 20:40:02 C 16 23 12.60 +08 55 43.2 V C40
2024-07-04 20:41:24 B 16 23 14.93 +08 55 48.7 V 130
2024-07-04 20:41:55 B 16 23 15.14 +08 55 50.6 V 130
2024-07-04 20:42:32 B 16 23 15.40 +08 55 53.1 V 130
2024-07-04 20:43:03 B 16 23 15.60 +08 55 55.1 V 130
2024-07-04 20:43:35 C 16 23 14.04 +08 55 57.1 V C40
2024-07-04 20:47:06 C 16 23 15.47 +08 56 10.8 V C40
2024-07-04 20:50:38 C 16 23 16.90 +08 56 24.6 V C40
2024-07-04 20:54:10 C 16 23 18.34 +08 56 38.4 V C40
2024-07-04 21:23:59 C 16 23 32.453 +08 58 29.68 Z C23
2024-07-04 21:26:26 C 16 23 33.449 +08 58 39.22 Z C23
2024-07-04 21:32:53 B 16 23 35.630 +08 59 11.26 q M60
2024-07-04 21:39:56 V 16 23 38.20 +08 59 33.5 V 270
2024-07-04 21:39:56 v 1 016.33585 +48.20435 270
2024-07-04 21:40:25 C 16 23 39.101 +08 59 33.50 Z C23
2024-07-04 21:45:37 V 16 23 40.50 +08 59 55.7 V 270
2024-07-04 21:45:37 v 1 016.33585 +48.20435 270
2024-07-04 21:51:19 V 16 23 42.80 +09 00 17.9 V 270
2024-07-04 21:51:19 v 1 016.33585 +48.20435 270
2024-07-04 21:54:52 V 16 23 44.74 +09 00 33.1 V 270
2024-07-04 21:54:52 v 1 004.83129 +47.04029 270
2024-07-04 21:58:18 V 16 23 44.95 +09 00 38.7 V 270
2024-07-04 21:58:18 v 1 016.33585 +48.20435 270
2024-07-04 22:03:52 V 16 23 48.40 +09 01 08.8 V 270
2024-07-04 22:03:52 v 1 004.83129 +47.04029 270
2024-07-04 22:12:52 V 16 23 52.20 +09 01 43.1 V 270
2024-07-04 22:12:52 v 1 004.83129 +47.04029 270
2024-07-04 22:21:38 B 16 23 55.162 +09 02 19.50 q M60
2024-07-04 22:26:29 V 16 23 57.51 +09 02 35.1 V 270
2024-07-04 22:26:29 v 1 004.83129 +47.04029 270
2024-07-04 23:10:21 B 16 24 14.633 +09 05 25.76 q M60
2024-07-04 23:30:40 B 16 24 24.10 +09 07 03.3 Z21
2024-07-04 23:33:14 B 16 24 25.11 +09 07 13.1 Z21
2024-07-05 04:14:55 V 16 26 18.95 +09 24 35.9 V 270
2024-07-05 04:14:55 v 1 262.17106 +30.43763 270
2024-07-05 04:28:13 V 16 26 23.91 +09 25 24.1 V 270
2024-07-05 04:28:13 v 1 262.17106 +30.43763 270
2024-07-05 04:41:12 V 16 26 28.71 +09 26 09.9 V 270
2024-07-05 04:41:12 v 1 262.17106 +30.43763 270
2024-07-05 04:54:14 V 16 26 33.57 +09 26 57.4 V 270
2024-07-05 04:54:14 v 1 262.17106 +30.43763 270
2024-07-05 08:51:02 C 16 28 04.212 +09 41 02.36 V T05
2024-07-05 08:56:04 C 16 28 06.014 +09 41 19.50 V T05
2024-07-05 09:06:29 C 16 28 09.730 +09 41 55.32 V T05
2024-07-05 09:22:32 C 16 28 15.444 +09 42 50.04 V T05
2024-07-05 19:56:08 C 16 32 04.272 +10 16 44.11 q K73
2024-07-05 19:58:54 C 16 32 05.198 +10 16 53.26 q K73
2024-07-05 20:01:43 C 16 32 06.072 +10 17 01.21 q K73
2024-07-05 20:04:29 C 16 32 07.006 +10 17 10.07 q K73
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)