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
2024-07-14 19:57:57 C 17 10 57.07 +15 12 19.5 V C40
2024-07-14 20:00:44 C 17 10 57.32 +15 12 20.8 V C40
2024-07-14 20:03:11 C 17 10 58.12 +15 12 20.4 X G02
2024-07-14 20:03:32 C 17 10 57.58 +15 12 22.4 V C40
2024-07-14 20:06:20 C 17 10 57.84 +15 12 23.7 V C40
2024-07-14 20:09:27 C 17 10 58.13 +15 12 25.3 V C40
2024-07-14 20:11:53 C 17 10 58.35 +15 12 26.6 V C40
2024-07-14 20:14:18 C 17 10 58.57 +15 12 27.7 V C40
2024-07-14 20:16:43 C 17 10 58.80 +15 12 29.0 V C40
2024-07-14 20:19:08 C 17 10 59.01 +15 12 30.2 V C40
2024-07-14 20:21:34 C 17 10 59.24 +15 12 31.4 V C40
2024-07-14 20:24:00 C 17 10 59.47 +15 12 32.6 V C40
2024-07-14 20:26:26 C 17 10 59.69 +15 12 33.8 V C40
2024-07-14 20:28:52 C 17 10 59.91 +15 12 35.1 V C40
2024-07-14 20:31:18 C 17 11 00.14 +15 12 36.2 V C40
2024-07-14 20:33:44 C 17 11 00.35 +15 12 37.4 V C40
2024-07-14 20:36:04 C 17 11 00.57 +15 12 38.5 V C40
2024-07-14 21:11:06 V 17 11 04.75 +15 12 54.9 V 270
2024-07-14 21:11:06 v 1 004.05000 +48.28000 270
2024-07-14 21:20:50 C 17 11 04.537 +15 13 08.46 W M01
2024-07-14 21:23:01 V 17 11 05.83 +15 13 00.6 V 270
2024-07-14 21:23:01 v 1 004.05000 +48.28000 270
2024-07-14 21:31:33 B 17 11 06.408 +15 13 07.72 V 160
2024-07-14 21:34:56 V 17 11 06.92 +15 13 06.9 V 270
2024-07-14 21:34:56 v 1 004.05000 +48.28000 270
2024-07-14 21:35:14 C 17 11 06.941 +15 13 05.88 Z C23
2024-07-14 21:36:24 B 17 11 06.847 +15 13 10.06 V 160
2024-07-14 21:48:58 V 17 11 08.19 +15 13 14.2 V 270
2024-07-14 21:48:58 v 1 004.05000 +48.28000 270
2024-07-14 21:49:26 C 17 11 07.850 +15 13 13.76 q 056
2024-07-14 22:08:41 C 17 11 09.626 +15 13 23.30 q 056
2024-07-14 22:24:09 C 17 11 11.407 +15 13 30.29 Z C23
2024-07-14 22:31:24 C 17 11 11.712 +15 13 34.32 q 056
2024-07-14 22:48:54 C 17 11 13.330 +15 13 42.96 q 056
2024-07-14 23:07:00 V 17 11 15.50 +15 13 52.7 V 270
2024-07-14 23:07:00 v 1 359.62629 +49.20369 270
2024-07-14 23:17:08 V 17 11 16.36 +15 13 57.3 V 270
2024-07-14 23:17:08 v 1 359.62629 +49.20369 270
2024-07-14 23:25:32 V 17 11 17.11 +15 14 01.8 V 270
2024-07-14 23:25:32 v 1 359.62629 +49.20369 270
2024-07-14 23:44:44 V 17 11 18.90 +15 14 07.6 V 270
2024-07-14 23:44:44 v 1 359.62629 +49.20369 270
2024-07-15 00:03:40 V 17 11 20.67 +15 14 20.6 V 270
2024-07-15 00:03:40 v 1 359.62629 +49.20369 270
2024-07-15 00:16:03 V 17 11 21.82 +15 14 26.6 V 270
2024-07-15 00:16:03 v 1 359.62629 +49.20369 270
2024-07-15 00:22:00 V 17 11 22.32 +15 14 28.8 V 270
2024-07-15 00:22:00 v 1 359.62629 +49.20369 270
2024-07-15 00:26:58 V 17 11 22.75 +15 14 28.8 V 270
2024-07-15 00:26:58 v 1 359.62629 +49.20369 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)