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
2024-06-28 20:41:45 B 13 39 29.263 -17 25 54.61 V L92
2024-06-28 20:44:12 V 13 39 36.59 -17 25 13.7 V 270
2024-06-28 20:44:12 v 1 013.31984 +45.85766 270
2024-06-28 20:56:39 V 13 40 08.61 -17 20 44.0 V 270
2024-06-28 20:56:39 v 1 013.31984 +45.85766 270
2024-06-28 21:09:06 B 13 40 40.798 -17 16 09.98 V 160
2024-06-28 21:13:05 B 13 40 50.947 -17 14 43.84 V 160
2024-06-28 21:19:31 V 13 41 08.49 -17 12 31.8 V 270
2024-06-28 21:19:31 v 1 004.83115 +47.04037 270
2024-06-28 21:23:06 V 13 41 17.59 -17 11 14.6 V 270
2024-06-28 21:23:06 v 1 004.83115 +47.04037 270
2024-06-28 21:26:48 V 13 41 27.05 -17 09 55.1 V 270
2024-06-28 21:26:48 v 1 004.83115 +47.04037 270
2024-06-28 21:28:45 V 13 41 30.83 -17 09 04.5 V 270
2024-06-28 21:28:45 v 1 013.31984 +45.85766 270
2024-06-28 21:29:50 C 13 41 35.275 -17 08 53.45 Z C23
2024-06-28 21:30:23 V 13 41 36.15 -17 08 37.3 V 270
2024-06-28 21:30:23 v 1 004.83115 +47.04037 270
2024-06-28 21:32:07 C 13 41 41.172 -17 08 03.37 Z C23
2024-06-28 21:34:11 C 13 41 46.382 -17 07 19.31 Z C23
2024-06-28 21:36:07 C 13 41 51.374 -17 06 35.82 Z C23
2024-06-28 21:41:43 V 13 42 03.89 -17 04 23.3 V 270
2024-06-28 21:41:43 v 1 013.31984 +45.85766 270
2024-06-29 01:47:18 V 13 52 24.42 -15 36 30.2 V 270
2024-06-29 01:47:18 v 1 281.32275 +35.80751 270
2024-06-29 01:53:28 V 13 52 39.17 -15 34 18.8 V 270
2024-06-29 01:53:28 v 1 281.32275 +35.80751 270
2024-06-29 01:55:59 B 13 52 43.68 -15 30 13.9 W79
2024-06-29 01:59:13 B 13 52 51.22 -15 29 07.0 W79
2024-06-29 02:01:28 V 13 52 58.39 -15 31 28.1 V 270
2024-06-29 02:01:28 v 1 281.32275 +35.80751 270
2024-06-29 02:13:23 V 13 53 26.88 -15 27 14.3 V 270
2024-06-29 02:13:23 v 1 281.32275 +35.80751 270
2024-06-29 02:19:48 C 13 53 40.601 -15 21 46.55 V W68
2024-06-29 02:25:10 C 13 53 53.438 -15 19 52.14 V W68
2024-06-29 02:32:32 C 13 54 10.970 -15 17 15.76 V W68
2024-06-29 02:35:51 C 13 54 18.864 -15 16 05.05 V W68
2024-06-29 02:43:50 C 13 54 37.879 -15 13 15.38 V W68
2024-06-29 02:48:40 C 13 54 49.380 -15 11 32.71 V W68
2024-06-29 03:28:54 V 13 56 28.72 -15 00 28.0 V 270
2024-06-29 03:28:54 v 1 262.25295 +30.53193 270
2024-06-29 03:38:18 V 13 56 50.72 -14 57 10.0 V 270
2024-06-29 03:38:18 v 1 262.25295 +30.53193 270
2024-06-29 03:48:06 V 13 57 13.57 -14 53 45.4 V 270
2024-06-29 03:48:06 v 1 262.25295 +30.53193 270
2024-06-29 03:58:21 V 13 57 37.45 -14 50 08.3 V 270
2024-06-29 03:58:21 v 1 262.25295 +30.53193 270
2024-06-29 11:40:33 V 14 14 59.83 -12 12 58.2 V 270
2024-06-29 11:40:33 v 1 140.17437 +36.06242 270
2024-06-29 11:53:55 V 14 15 27.50 -12 08 36.7 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)