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
2024-07-19 02:42:13 v 1 284.88535 +46.38845 270
2024-07-19 02:54:32 V 17 19 34.24 +15 47 36.5 V 270
2024-07-19 02:54:32 v 1 284.88535 +46.38845 270
2024-07-19 03:07:14 V 17 19 35.08 +15 47 38.8 V 270
2024-07-19 03:07:14 v 1 284.88535 +46.38845 270
2024-07-19 03:07:59 C 17 19 34.70 +15 48 12.12 W89
2024-07-19 03:09:29 C 17 19 34.76 +15 48 12.30 W89
2024-07-19 03:11:19 C 17 19 34.83 +15 48 12.48 W89
2024-07-19 03:12:49 C 17 19 34.90 +15 48 12.71 W89
2024-07-19 03:14:29 C 17 19 34.97 +15 48 12.94 W89
2024-07-19 03:19:57 V 17 19 35.87 +15 47 41.4 V 270
2024-07-19 03:19:57 v 1 284.88535 +46.38845 270
2024-07-19 03:47:54 V 17 19 37.98 +15 47 49.2 V 270
2024-07-19 03:47:54 v 1 272.08338 +42.83029 270
2024-07-19 04:00:37 V 17 19 38.80 +15 47 51.7 V 270
2024-07-19 04:00:37 v 1 272.08338 +42.83029 270
2024-07-19 04:13:19 V 17 19 39.63 +15 47 53.9 V 270
2024-07-19 04:13:19 v 1 272.08338 +42.83029 270
2024-07-19 04:25:50 V 17 19 40.46 +15 47 56.8 V 270
2024-07-19 04:25:50 v 1 272.08338 +42.83029 270
2024-07-19 08:25:28 C 17 19 57.636 +15 48 54.65 V T05
2024-07-19 08:31:01 C 17 19 57.986 +15 48 55.73 V T05
2024-07-19 08:40:14 C 17 19 58.562 +15 48 57.42 V T05
2024-07-19 08:56:30 C 17 19 59.594 +15 49 00.55 V T05
2024-07-19 09:05:57 C 17 20 00.173 +15 49 02.75 V T08
2024-07-19 09:10:58 C 17 20 00.487 +15 49 03.72 V T08
2024-07-19 09:21:06 C 17 20 01.133 +15 49 05.45 V T08
2024-07-19 09:50:39 C 17 20 03.017 +15 49 10.88 V T08
2024-07-19 14:29:22 V 17 20 22.68 +15 49 57.4 V 270
2024-07-19 14:29:22 v 1 130.66569 +31.73946 270
2024-07-19 14:36:19 V 17 20 23.13 +15 49 58.5 V 270
2024-07-19 14:36:19 v 1 130.66569 +31.73946 270
2024-07-19 14:58:53 V 17 20 24.82 +15 50 01.5 V 270
2024-07-19 14:58:53 v 1 130.66569 +31.73946 270
2024-07-19 15:06:56 V 17 20 25.25 +15 49 59.6 V 270
2024-07-19 15:06:56 v 1 130.66569 +31.73946 270
2024-07-19 19:37:56 C 17 20 45.00 +15 50 45.8 X G02
2024-07-19 19:44:05 C 17 20 45.36 +15 50 47.2 X G02
2024-07-19 19:50:14 C 17 20 45.77 +15 50 47.8 X G02
2024-07-19 20:49:49 B 17 20 49.649 +15 51 02.37 V L92
2024-07-19 20:53:54 B 17 20 49.875 +15 51 03.27 V L92
2024-07-19 20:59:00 B 17 20 50.155 +15 51 03.82 V L92
2024-07-19 21:04:06 B 17 20 50.494 +15 51 05.30 V L92
2024-07-19 21:14:18 B 17 20 51.165 +15 51 06.29 V L92
2024-07-19 21:19:24 B 17 20 51.491 +15 51 06.40 V L92
2024-07-19 21:24:30 B 17 20 51.762 +15 51 07.94 V L92
2024-07-19 21:29:36 B 17 20 52.074 +15 51 09.69 V L92
2024-07-19 21:34:41 B 17 20 52.431 +15 51 09.69 V L92
2024-07-19 21:35:17 C 17 20 52.711 +15 51 05.11 Z C23
2024-07-19 21:39:47 B 17 20 52.738 +15 51 10.60 V L92
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)