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
2024-08-04 18:31:14 C 17 40 51.47 +15 28 42.0 V C40
2024-08-04 18:34:01 C 17 40 51.60 +15 28 41.4 V C40
2024-08-04 18:36:49 C 17 40 51.70 +15 28 40.8 V C40
2024-08-05 08:23:07 C 17 41 28.757 +15 26 02.29 V T08
2024-08-05 08:27:16 C 17 41 28.934 +15 26 01.25 V T08
2024-08-05 08:34:55 C 17 41 29.249 +15 25 59.48 V T08
2024-08-05 09:10:02 C 17 41 30.686 +15 25 52.32 V T08
2024-08-05 18:36:46 C 17 41 56.61 +15 23 50.6 V C40
2024-08-05 18:39:34 C 17 41 56.73 +15 23 50.3 V C40
2024-08-05 18:42:21 C 17 41 56.84 +15 23 49.6 V C40
2024-08-05 18:45:08 C 17 41 56.96 +15 23 49.0 V C40
2024-08-05 18:47:56 C 17 41 57.08 +15 23 48.4 V C40
2024-08-05 18:50:43 C 17 41 57.19 +15 23 47.8 V C40
2024-08-05 18:53:30 C 17 41 57.31 +15 23 47.2 V C40
2024-08-05 18:56:18 C 17 41 57.43 +15 23 46.7 V C40
2024-08-05 18:59:04 C 17 41 57.55 +15 23 46.1 V C40
2024-08-05 19:01:52 C 17 41 57.66 +15 23 45.5 V C40
2024-08-05 19:04:39 C 17 41 57.78 +15 23 44.8 V C40
2024-08-05 19:07:26 C 17 41 57.90 +15 23 44.3 V C40
2024-08-05 20:08:29 B 17 42 00.759 +15 23 32.79 V L92
2024-08-05 20:13:35 B 17 42 00.935 +15 23 32.07 V L92
2024-08-05 20:18:41 B 17 42 01.211 +15 23 31.01 V L92
2024-08-05 20:23:46 B 17 42 01.431 +15 23 30.71 V L92
2024-08-05 20:46:40 C 17 42 02.10 +15 23 23.4 V M77
2024-08-05 21:08:00 C 17 42 03.365 +15 23 19.07 Z C23
2024-08-05 21:16:38 C 17 42 03.36 +15 23 16.8 V M77
2024-08-05 21:46:35 C 17 42 04.64 +15 23 10.6 V M77
2024-08-05 23:17:44 C 17 42 08.875 +15 22 50.38 Z C23
2024-08-06 07:52:36 C 17 42 32.256 +15 21 10.91 V T08
2024-08-06 07:57:15 C 17 42 32.458 +15 21 09.76 V T08
2024-08-06 08:07:26 C 17 42 32.875 +15 21 07.56 V T08
2024-08-06 08:25:11 C 17 42 33.605 +15 21 03.64 V T08
2024-08-06 18:39:55 C 17 43 01.39 +15 18 46.7 V C40
2024-08-06 18:43:50 C 17 43 01.56 +15 18 46.0 V C40
2024-08-06 18:47:45 C 17 43 01.72 +15 18 45.0 V C40
2024-08-06 18:51:40 C 17 43 01.89 +15 18 44.2 V C40
2024-08-06 18:55:35 C 17 43 02.04 +15 18 43.2 V C40
2024-08-06 18:59:30 C 17 43 02.21 +15 18 42.5 V C40
2024-08-06 19:03:32 C 17 43 02.38 +15 18 41.5 V C40
2024-08-06 19:07:34 C 17 43 02.55 +15 18 40.7 V C40
2024-08-06 19:11:29 C 17 43 02.71 +15 18 39.9 V C40
2024-08-06 19:15:23 C 17 43 02.87 +15 18 39.1 V C40
2024-08-06 19:19:12 C 17 43 03.04 +15 18 38.1 V C40
2024-08-06 19:22:56 C 17 43 03.19 +15 18 37.4 V C40
2024-08-07 07:33:09 C 17 43 36.029 +15 16 04.62 V T05
2024-08-07 07:37:42 C 17 43 36.202 +15 16 03.43 V T05
2024-08-07 07:46:10 C 17 43 36.557 +15 16 01.63 V T05
2024-08-07 08:02:57 C 17 43 37.238 +15 15 57.96 V T05
2024-08-07 18:32:50 C 17 44 05.54 +15 13 33.1 V C40
2024-08-07 18:35:39 C 17 44 05.67 +15 13 32.7 V C40
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)