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
2024-07-19 21:44:53 B 17 20 53.089 +15 51 12.16 V L92
2024-07-19 21:49:59 B 17 20 53.376 +15 51 11.80 V L92
2024-07-19 21:58:14 B 17 20 53.770 +15 51 39.71 Z M49
2024-07-19 22:05:24 B 17 20 54.216 +15 51 40.79 Z M49
2024-07-19 22:11:20 C 17 20 54.996 +15 51 10.69 Z C23
2024-07-19 22:12:02 B 17 20 54.617 +15 51 41.87 Z M49
2024-07-19 23:25:40 C 17 20 59.772 +15 51 22.57 Z C23
2024-07-20 22:03:40 B 17 22 30.276 +15 54 41.04 V 160
2024-07-20 22:09:41 B 17 22 30.672 +15 54 41.54 V 160
2024-07-21 02:32:41 B 17 22 47.95 +15 55 43.2 W79
2024-07-21 02:41:32 B 17 22 48.50 +15 55 44.3 W79
2024-07-21 03:34:51 V 17 22 52.34 +15 55 27.1 V 270
2024-07-21 03:34:51 v 1 262.25307 +30.53201 270
2024-07-21 03:39:37 V 17 22 52.48 +15 55 24.3 V 270
2024-07-21 03:39:37 v 1 262.25307 +30.53201 270
2024-07-21 03:45:35 V 17 22 52.70 +15 55 27.9 V 270
2024-07-21 03:45:35 v 1 262.25307 +30.53201 270
2024-07-21 03:47:34 V 17 22 52.86 +15 55 31.0 V 270
2024-07-21 03:47:34 v 1 262.25307 +30.53201 270
2024-07-21 08:46:10 C 17 23 11.551 +15 56 04.56 V T08
2024-07-21 08:51:04 C 17 23 11.822 +15 56 05.03 V T08
2024-07-21 08:58:50 C 17 23 12.266 +15 56 05.86 V T08
2024-07-21 09:12:56 C 17 23 13.063 +15 56 07.22 V T08
2024-07-21 19:27:20 C 17 23 51.98 +15 56 56.5 V C40
2024-07-21 19:30:07 C 17 23 52.14 +15 56 56.7 V C40
2024-07-21 19:32:55 C 17 23 52.29 +15 56 57.0 V C40
2024-07-21 19:35:43 C 17 23 52.45 +15 56 57.2 V C40
2024-07-21 19:38:29 C 17 23 52.62 +15 56 57.4 V C40
2024-07-21 19:38:42 C 17 23 53.04 +15 56 56.0 X G02
2024-07-21 19:41:17 C 17 23 52.77 +15 56 57.6 V C40
2024-07-21 19:43:45 C 17 23 53.31 +15 56 56.3 X G02
2024-07-21 19:44:04 C 17 23 52.93 +15 56 57.8 V C40
2024-07-21 19:46:51 C 17 23 53.10 +15 56 58.0 V C40
2024-07-21 19:48:49 C 17 23 53.61 +15 56 56.9 X G02
2024-07-21 19:49:39 C 17 23 53.26 +15 56 58.4 V C40
2024-07-21 19:52:27 C 17 23 53.41 +15 56 58.5 V C40
2024-07-21 19:55:14 C 17 23 53.57 +15 56 58.8 V C40
2024-07-21 19:58:02 C 17 23 53.73 +15 56 59.0 V C40
2024-07-21 21:14:15 B 17 23 58.536 +15 57 07.78 V L92
2024-07-21 21:22:20 B 17 23 58.927 +15 57 08.65 V L92
2024-07-21 21:32:26 B 17 23 59.533 +15 57 09.50 V L92
2024-07-21 21:42:32 B 17 24 00.133 +15 57 10.57 V L92
2024-07-22 08:42:40 C 17 24 40.572 +15 58 07.82 V T05
2024-07-22 08:55:21 C 17 24 41.256 +15 58 08.69 V T05
2024-07-22 09:11:55 C 17 24 42.154 +15 58 09.73 V T05
2024-07-23 01:20:24 B 17 25 40.71 +15 59 22.9 W79
2024-07-23 01:33:10 B 17 25 41.35 +15 59 22.9 W79
2024-07-23 04:35:29 V 17 25 52.15 +15 59 04.6 V 270
2024-07-23 04:35:29 v 1 237.95187 +37.34913 270
2024-07-23 04:48:23 V 17 25 52.82 +15 59 06.0 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)