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
2024-07-23 04:48:23 v 1 237.95187 +37.34913 270
2024-07-23 04:56:32 V 17 25 52.74 +15 59 06.5 V 270
2024-07-23 04:56:32 v 1 262.26410 +35.56941 270
2024-07-23 05:00:54 V 17 25 53.48 +15 59 06.8 V 270
2024-07-23 05:00:54 v 1 237.95187 +37.34913 270
2024-07-23 05:01:06 V 17 25 53.02 +15 59 06.5 V 270
2024-07-23 05:01:06 v 1 262.26410 +35.56941 270
2024-07-23 05:06:52 V 17 25 53.39 +15 59 05.8 V 270
2024-07-23 05:06:52 v 1 262.26410 +35.56941 270
2024-07-23 05:13:24 V 17 25 54.13 +15 59 06.4 V 270
2024-07-23 05:13:24 v 1 237.95187 +37.34913 270
2024-07-23 05:16:12 V 17 25 53.87 +15 59 06.3 V 270
2024-07-23 05:16:12 v 1 262.26410 +35.56941 270
2024-07-23 10:21:38 C 17 26 11.040 +15 59 23.82 V T08
2024-07-23 10:26:58 C 17 26 11.321 +15 59 23.78 V T08
2024-07-23 11:01:37 C 17 26 13.178 +15 59 24.40 V T08
2024-07-23 11:10:33 C 17 26 13.644 +15 59 24.54 V T08
2024-07-24 01:11:43 B 17 27 02.61 +16 00 00.3 Z X86
2024-07-24 01:18:46 B 17 27 02.97 +16 00 00.4 Z X86
2024-07-24 01:24:48 B 17 27 03.26 +16 00 00.5 Z X86
2024-07-24 02:38:53 C 17 27 07.562 +16 00 03.56 V W68
2024-07-24 02:43:27 C 17 27 07.795 +16 00 03.56 V W68
2024-07-24 03:06:33 C 17 27 08.969 +16 00 03.89 V W68
2024-07-24 03:13:17 B 17 27 10.21 +15 59 41.7 V25
2024-07-24 03:16:21 C 17 27 09.473 +16 00 03.85 V W68
2024-07-24 03:19:52 B 17 27 10.53 +15 59 41.6 V25
2024-07-24 08:51:47 C 17 27 28.255 +15 59 49.31 V T08
2024-07-24 08:56:09 C 17 27 28.469 +15 59 49.16 V T08
2024-07-24 09:03:38 C 17 27 28.848 +15 59 49.31 V T08
2024-07-24 09:23:09 C 17 27 29.825 +15 59 49.02 V T08
2024-07-24 19:12:33 C 17 28 02.94 +15 59 39.3 V C40
2024-07-24 19:15:21 C 17 28 03.08 +15 59 39.3 V C40
2024-07-24 19:18:08 C 17 28 03.22 +15 59 39.3 V C40
2024-07-24 19:20:56 C 17 28 03.36 +15 59 39.2 V C40
2024-07-24 19:23:44 C 17 28 03.50 +15 59 39.2 V C40
2024-07-24 19:26:31 C 17 28 03.64 +15 59 39.2 V C40
2024-07-24 19:29:19 C 17 28 03.78 +15 59 39.1 V C40
2024-07-24 19:32:06 C 17 28 03.93 +15 59 39.1 V C40
2024-07-24 19:34:52 C 17 28 04.06 +15 59 39.1 V C40
2024-07-24 19:37:39 C 17 28 04.21 +15 59 39.0 V C40
2024-07-24 19:40:27 C 17 28 04.35 +15 59 39.0 V C40
2024-07-24 19:43:14 C 17 28 04.49 +15 59 39.0 V C40
2024-07-24 20:07:38 C 17 28 06.08 +15 59 37.7 V 118
2024-07-24 21:29:27 C 17 28 10.25 +15 59 36.8 V 118
2024-07-24 21:36:36 B 17 28 10.685 +15 59 37.79 V 160
2024-07-24 21:41:35 B 17 28 10.961 +15 59 37.93 V 160
2024-07-24 21:46:22 B 17 28 11.222 +15 59 38.00 V 160
2024-07-24 22:11:01 C 17 28 12.410 +15 59 37.90 X L63
2024-07-24 22:26:24 C 17 28 13.200 +15 59 37.43 X L63
2024-07-24 22:41:47 C 17 28 13.992 +15 59 37.00 X L63
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)