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
2024-03-21 05:35:07 C 04 07 46.471 +06 36 53.53 V T08
2024-03-21 06:11:38 C 04 07 48.890 +06 36 26.24 V T08
2024-03-21 06:17:49 C 04 07 49.313 +06 36 21.28 V T08
2024-03-21 06:27:36 C 04 07 49.990 +06 36 13.72 V T08
2024-03-21 06:42:25 C 04 07 50.928 +06 36 03.20 V T08
2024-03-23 05:37:43 C 04 11 06.245 +06 00 32.36 V T05
2024-03-23 05:45:40 C 04 11 06.761 +06 00 27.04 V T05
2024-03-23 06:00:18 C 04 11 07.781 +06 00 15.70 V T05
2024-03-23 06:04:51 C 04 11 08.078 +06 00 11.56 V T05
2024-03-25 23:43:54 C 04 15 46.958 +05 09 57.92 V W68
2024-03-25 23:48:26 C 04 15 47.244 +05 09 54.07 V W68
2024-03-25 23:56:15 C 04 15 47.820 +05 09 48.53 V W68
2024-03-26 00:10:42 C 04 15 48.840 +05 09 37.01 V W68
2024-03-27 06:10:39 C 04 17 58.234 +04 46 11.28 V T05
2024-03-27 06:15:12 C 04 17 58.526 +04 46 08.36 V T05
2024-03-27 06:24:39 C 04 17 59.263 +04 46 00.01 V T05
2024-03-27 06:41:21 C 04 18 00.487 +04 45 47.84 V T05
2024-03-28 02:53:08 C 04 19 28.376 +04 29 57.30 V 703
2024-03-28 02:56:23 C 04 19 28.636 +04 29 55.39 V 703
2024-03-28 03:02:55 C 04 19 29.111 +04 29 49.56 V 703
2024-03-29 05:34:13 C 04 21 25.291 +04 08 56.15 V T08
2024-03-29 05:38:53 C 04 21 25.613 +04 08 53.02 V T08
2024-03-29 05:46:26 C 04 21 26.165 +04 08 46.90 V T08
2024-03-29 06:02:53 C 04 21 27.353 +04 08 33.90 V T08
2024-03-31 05:39:59 C 04 24 58.126 +03 30 32.22 V T05
2024-03-31 05:50:32 C 04 24 58.915 +03 30 23.65 V T05
2024-03-31 05:51:11 C 04 24 58.973 +03 30 22.72 V T05
2024-03-31 05:55:20 C 04 24 59.268 +03 30 20.16 V T05
2024-03-31 06:04:39 C 04 24 59.935 +03 30 12.06 V T05
2024-03-31 06:10:05 C 04 25 00.331 +03 30 07.60 V T05
2024-03-31 06:19:53 C 04 25 01.051 +03 29 59.75 V T05
2024-05-31 17:31:44 C 06 03 13.35 -20 27 19.0 V M21
2024-05-31 17:47:23 C 06 03 14.14 -20 27 32.3 V M21
2024-06-22 21:13:21 C 07 53 00.53 -31 59 34.5 q Y16
2024-06-22 21:18:52 C 07 53 05.88 -31 59 48.7 q Y16
2024-06-22 21:23:35 C 07 53 10.48 -32 00 02.3 q Y16
2024-06-25 10:48:10 C 09 29 32.24 -34 22 47.1 X P14
2024-06-25 11:00:17 C 09 30 00.61 -34 22 43.3 X P14
2024-06-25 11:10:52 C 09 30 25.46 -34 22 39.3 X P14
2024-06-26 19:13:53 C 11 02 30.780 -32 05 30.12 X L68
2024-06-26 19:17:21 C 11 02 42.125 -32 04 54.98 X L68
2024-06-26 19:20:48 C 11 02 53.460 -32 04 21.00 X L68
2024-06-27 08:06:56 V 11 46 01.29 -29 27 13.2 V 270
2024-06-27 08:06:56 v 1 151.66013 -32.96848 270
2024-06-27 08:13:53 V 11 46 24.56 -29 25 28.1 V 270
2024-06-27 08:13:53 v 1 151.66013 -32.96848 270
2024-06-27 08:21:10 V 11 46 48.90 -29 23 38.4 V 270
2024-06-27 08:21:10 v 1 151.66013 -32.96848 270
2024-06-27 08:28:39 V 11 47 13.92 -29 21 45.1 V 270
2024-06-27 08:28:39 v 1 151.66013 -32.96848 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)