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
2024-07-16 20:23:50 C 17 15 20.74 +15 32 48.0 V C40
2024-07-16 20:30:33 C 17 15 21.26 +15 32 50.2 V C40
2024-07-16 20:33:21 C 17 15 21.47 +15 32 51.2 V C40
2024-07-16 20:36:09 C 17 15 21.69 +15 32 52.1 V C40
2024-07-16 20:38:57 C 17 15 21.91 +15 32 52.9 V C40
2024-07-16 20:41:45 C 17 15 22.12 +15 32 54.0 V C40
2024-07-16 20:44:32 C 17 15 22.34 +15 32 54.9 V C40
2024-07-16 20:47:19 C 17 15 22.56 +15 32 55.8 V C40
2024-07-16 20:50:07 C 17 15 22.78 +15 32 56.9 V C40
2024-07-16 20:52:54 C 17 15 23.00 +15 32 57.8 V C40
2024-07-16 20:55:41 C 17 15 23.21 +15 32 58.6 V C40
2024-07-16 20:58:29 C 17 15 23.43 +15 32 59.5 V C40
2024-07-16 21:01:16 C 17 15 23.64 +15 33 00.5 V C40
2024-07-16 21:01:45 B 17 15 24.374 +15 33 01.87 V 160
2024-07-16 21:05:53 B 17 15 24.684 +15 33 03.42 V 160
2024-07-16 21:09:42 B 17 15 25.003 +15 33 04.61 V 160
2024-07-16 22:17:55 C 17 15 30.053 +15 33 24.84 q 056
2024-07-16 22:34:59 C 17 15 31.406 +15 33 30.49 q 056
2024-07-16 22:39:46 C 17 15 31.901 +15 33 34.70 X L63
2024-07-16 23:02:18 C 17 15 33.566 +15 33 39.46 q 056
2024-07-16 23:26:13 C 17 15 35.479 +15 33 47.12 q 056
2024-07-16 23:47:51 C 17 15 37.202 +15 33 56.45 X L63
2024-07-17 01:02:08 C 17 15 43.039 +15 34 19.60 X L63
2024-07-17 02:33:15 B 17 15 51.78 +15 35 28.4 W89
2024-07-17 02:39:54 B 17 15 52.27 +15 35 30.4 W89
2024-07-17 03:44:01 V 17 15 57.87 +15 35 22.5 V 270
2024-07-17 03:44:01 v 1 262.17106 +30.43763 270
2024-07-17 03:56:55 V 17 15 58.83 +15 35 26.7 V 270
2024-07-17 03:56:55 v 1 262.17106 +30.43763 270
2024-07-17 04:09:50 V 17 15 59.79 +15 35 30.9 V 270
2024-07-17 04:09:50 v 1 262.17106 +30.43763 270
2024-07-17 04:21:56 V 17 16 00.65 +15 35 34.5 V 270
2024-07-17 04:21:56 v 1 262.17106 +30.43763 270
2024-07-17 05:23:17 V 17 16 06.04 +15 35 45.5 V 270
2024-07-17 05:23:17 v 1 238.11528 +49.17665 270
2024-07-17 05:37:47 V 17 16 06.96 +15 35 50.2 V 270
2024-07-17 05:37:47 v 1 238.11528 +49.17665 270
2024-07-17 05:50:53 V 17 16 07.97 +15 35 53.7 V 270
2024-07-17 05:50:53 v 1 238.11528 +49.17665 270
2024-07-17 06:03:36 V 17 16 08.91 +15 35 58.3 V 270
2024-07-17 06:03:36 v 1 238.11528 +49.17665 270
2024-07-17 08:40:14 C 17 16 21.401 +15 37 00.48 V T05
2024-07-17 08:49:11 C 17 16 22.049 +15 37 03.14 V T05
2024-07-17 08:54:06 C 17 16 22.402 +15 37 04.76 V T05
2024-07-17 09:08:34 C 17 16 23.429 +15 37 09.59 V T08
2024-07-17 09:08:41 C 17 16 23.472 +15 37 09.01 V T05
2024-07-17 09:13:13 C 17 16 23.772 +15 37 10.92 V T08
2024-07-17 09:20:33 C 17 16 24.305 +15 37 13.12 V T08
2024-07-17 09:42:51 C 17 16 25.922 +15 37 19.63 V T08
2024-07-17 17:50:32 B 17 17 06.679 +15 40 02.77 Z M49
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)