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
2024-07-11 17:22:19 C 17 02 20.13 +14 20 54.4 Y 190
2024-07-11 17:23:03 C 17 02 20.22 +14 20 55.1 Y 190
2024-07-11 17:23:46 C 17 02 20.32 +14 20 55.6 Y 190
2024-07-11 17:24:27 C 17 02 20.40 +14 20 56.3 Y 190
2024-07-11 17:25:09 C 17 02 20.48 +14 20 57.0 Y 190
2024-07-11 17:25:53 C 17 02 20.58 +14 20 57.6 Y 190
2024-07-11 17:26:36 C 17 02 20.68 +14 20 58.4 Y 190
2024-07-11 17:27:17 C 17 02 20.76 +14 20 58.9 Y 190
2024-07-11 17:27:59 C 17 02 20.85 +14 20 59.5 Y 190
2024-07-11 20:44:39 C 17 02 47.57 +14 23 48.5 Y 557
2024-07-11 20:56:24 C 17 02 49.15 +14 24 02.4 V 104
2024-07-11 21:36:04 C 17 02 54.02 +14 24 33.5 Y 557
2024-07-11 21:43:15 B 17 02 54.760 +14 24 47.12 V L92
2024-07-11 21:45:17 B 17 02 55.000 +14 24 48.59 V L92
2024-07-11 21:47:20 B 17 02 55.275 +14 24 50.50 V L92
2024-07-11 21:49:22 B 17 02 55.530 +14 24 52.18 V L92
2024-07-11 21:51:25 B 17 02 55.783 +14 24 54.12 V L92
2024-07-11 21:53:27 B 17 02 56.036 +14 24 55.66 V L92
2024-07-11 21:55:29 B 17 02 56.282 +14 24 57.62 V L92
2024-07-11 21:57:31 B 17 02 56.535 +14 24 59.15 V L92
2024-07-11 21:59:34 B 17 02 56.778 +14 25 01.06 V L92
2024-07-11 22:01:36 B 17 02 57.056 +14 25 02.77 V L92
2024-07-11 22:03:38 B 17 02 57.296 +14 25 04.61 V L92
2024-07-11 22:05:41 B 17 02 57.590 +14 25 06.38 V L92
2024-07-11 22:05:49 C 17 02 57.602 +14 24 59.83 q 056
2024-07-11 22:07:43 B 17 02 57.797 +14 25 08.03 V L92
2024-07-11 22:09:45 B 17 02 58.047 +14 25 09.94 V L92
2024-07-11 22:11:48 B 17 02 58.312 +14 25 11.49 V L92
2024-07-11 22:12:56 C 17 02 58.65 +14 25 05.5 Y 557
2024-07-11 22:18:19 C 17 02 59.172 +14 25 10.60 q 056
2024-07-11 22:20:41 B 17 02 59.654 +14 25 16.00 V 160
2024-07-11 22:23:58 B 17 03 00.074 +14 25 18.88 V 160
2024-07-11 22:27:03 B 17 03 00.475 +14 25 21.68 V 160
2024-07-11 22:34:58 C 17 03 01.258 +14 25 24.78 q 056
2024-07-11 22:49:33 C 17 03 03.134 +14 25 37.45 q 056
2024-07-11 22:54:19 C 17 03 03.86 +14 25 44.8 V 104
2024-07-12 00:40:00 C 17 03 17.11 +14 27 14.1 V 104
2024-07-12 03:35:44 B 17 03 42.34 +14 29 53.9 V38
2024-07-12 03:36:48 B 17 03 42.46 +14 29 54.9 V38
2024-07-12 03:37:51 B 17 03 42.59 +14 29 55.7 V38
2024-07-12 03:38:53 B 17 03 42.72 +14 29 56.4 V38
2024-07-12 03:39:56 B 17 03 42.84 +14 29 57.5 V38
2024-07-12 04:16:21 V 17 03 46.98 +14 30 31.4 V 270
2024-07-12 04:16:21 v 1 262.17106 +30.43763 270
2024-07-12 04:21:07 V 17 03 46.83 +14 30 34.1 V 270
2024-07-12 04:21:07 v 1 262.17106 +30.43763 270
2024-07-12 04:26:05 V 17 03 48.08 +14 30 36.8 V 270
2024-07-12 04:26:05 v 1 262.17106 +30.43763 270
2024-07-12 04:31:39 V 17 03 48.77 +14 30 41.6 V 270
2024-07-12 04:31:39 v 1 262.17106 +30.43763 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)