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
2024-08-07 18:38:27 C 17 44 05.79 +15 13 32.0 V C40
2024-08-07 18:41:15 C 17 44 05.90 +15 13 31.3 V C40
2024-08-07 18:44:02 C 17 44 06.03 +15 13 30.7 V C40
2024-08-07 18:46:49 C 17 44 06.14 +15 13 30.0 V C40
2024-08-07 18:49:37 C 17 44 06.25 +15 13 29.4 V C40
2024-08-07 18:52:24 C 17 44 06.37 +15 13 28.8 V C40
2024-08-07 18:55:12 C 17 44 06.49 +15 13 28.0 V C40
2024-08-07 18:58:00 C 17 44 06.60 +15 13 27.6 V C40
2024-08-07 19:00:47 C 17 44 06.73 +15 13 26.9 V C40
2024-08-07 19:03:35 C 17 44 06.84 +15 13 26.4 V C40
2024-08-08 07:34:32 C 17 44 40.462 +15 10 42.82 V T05
2024-08-08 07:39:45 C 17 44 40.673 +15 10 41.56 V T05
2024-08-08 07:47:17 C 17 44 40.980 +15 10 40.01 V T05
2024-08-08 19:05:26 C 17 45 11.25 +15 07 59.7 V C40
2024-08-08 19:08:14 C 17 45 11.38 +15 07 59.0 V C40
2024-08-08 19:11:02 C 17 45 11.50 +15 07 58.3 V C40
2024-08-08 19:13:50 C 17 45 11.61 +15 07 57.7 V C40
2024-08-08 19:16:38 C 17 45 11.72 +15 07 57.1 V C40
2024-08-08 19:19:25 C 17 45 11.84 +15 07 56.3 V C40
2024-08-08 19:22:13 C 17 45 11.95 +15 07 55.7 V C40
2024-08-08 19:25:01 C 17 45 12.07 +15 07 54.5 V C40
2024-08-08 19:27:48 C 17 45 12.20 +15 07 53.9 V C40
2024-08-08 19:30:36 C 17 45 12.32 +15 07 53.9 V C40
2024-08-08 19:33:23 C 17 45 12.43 +15 07 53.1 V C40
2024-08-08 19:36:12 C 17 45 12.55 +15 07 52.5 V C40
2024-08-08 20:19:47 C 17 45 14.652 +15 07 42.78 V B38
2024-08-08 20:25:55 C 17 45 14.952 +15 07 41.05 V B38
2024-08-08 20:31:31 C 17 45 15.173 +15 07 40.22 V B38
2024-08-09 08:02:16 C 17 45 45.886 +15 05 05.24 V T08
2024-08-09 08:07:04 C 17 45 46.080 +15 05 04.06 V T08
2024-08-09 08:53:00 C 17 45 47.978 +15 04 52.97 V T08
2024-08-09 18:51:18 C 17 46 14.95 +15 02 26.9 V C40
2024-08-09 18:55:02 C 17 46 15.11 +15 02 26.1 V C40
2024-08-09 18:58:45 C 17 46 15.26 +15 02 25.1 V C40
2024-08-09 19:02:28 C 17 46 15.43 +15 02 24.5 V C40
2024-08-09 19:06:10 C 17 46 15.58 +15 02 23.6 V C40
2024-08-09 19:09:54 C 17 46 15.74 +15 02 22.5 V C40
2024-08-09 19:13:37 C 17 46 15.89 +15 02 21.6 V C40
2024-08-09 19:17:21 C 17 46 16.05 +15 02 20.9 V C40
2024-08-09 19:21:04 C 17 46 16.21 +15 02 19.8 V C40
2024-08-09 19:24:48 C 17 46 16.38 +15 02 19.2 V C40
2024-08-09 19:28:31 C 17 46 16.51 +15 02 18.0 V C40
2024-08-09 19:32:14 C 17 46 16.67 +15 02 17.1 V C40
2024-08-09 21:15:52 C 17 46 21.396 +15 01 51.74 Z C23
2024-08-09 22:35:24 C 17 46 24.768 +15 01 32.45 Z C23
2024-08-10 08:16:55 C 17 46 50.786 +14 59 20.29 V T05
2024-08-10 08:21:29 C 17 46 50.947 +14 59 19.21 V T05
2024-08-10 08:54:34 C 17 46 52.332 +14 59 11.22 V T05
2024-08-10 09:02:37 C 17 46 52.661 +14 59 09.06 V T05
2024-08-10 09:37:29 C 17 46 54.113 +14 59 00.71 V T08
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)