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
2024-07-03 13:10:20 V 16 07 38.63 +06 27 10.7 V 270
2024-07-03 13:10:20 v 1 134.35900 +35.08986 270
2024-07-03 13:23:14 V 16 07 45.84 +06 28 23.3 V 270
2024-07-03 13:23:14 v 1 134.35900 +35.08986 270
2024-07-03 13:38:56 V 16 07 54.58 +06 29 51.3 V 270
2024-07-03 13:38:56 v 1 134.35900 +35.08986 270
2024-07-03 13:49:35 V 16 08 00.49 +06 30 51.1 V 270
2024-07-03 13:49:35 v 1 134.35900 +35.08986 270
2024-07-03 20:05:17 C 16 11 30.28 +07 04 28.1 V C40
2024-07-03 20:06:51 C 16 11 31.10 +07 04 36.3 V C40
2024-07-03 20:08:25 C 16 11 31.91 +07 04 44.4 V C40
2024-07-03 20:09:59 C 16 11 32.72 +07 04 52.5 V C40
2024-07-03 20:11:31 C 16 11 33.53 +07 05 00.5 V C40
2024-07-03 20:13:05 C 16 11 34.35 +07 05 08.6 V C40
2024-07-03 20:14:40 C 16 11 35.16 +07 05 16.7 V C40
2024-07-03 20:16:13 C 16 11 35.98 +07 05 24.8 V C40
2024-07-03 20:17:46 C 16 11 36.79 +07 05 32.9 V C40
2024-07-03 20:19:20 C 16 11 37.60 +07 05 40.9 V C40
2024-07-03 20:20:54 C 16 11 38.41 +07 05 49.0 V C40
2024-07-03 20:22:26 C 16 11 39.22 +07 05 57.1 V C40
2024-07-03 20:26:15 C 16 11 41.21 +07 06 16.8 V C40
2024-07-03 20:27:48 C 16 11 42.01 +07 06 24.8 V C40
2024-07-03 20:29:22 C 16 11 42.82 +07 06 32.8 V C40
2024-07-03 20:30:56 C 16 11 43.64 +07 06 41.0 V C40
2024-07-03 20:32:29 C 16 11 44.45 +07 06 49.0 V C40
2024-07-03 20:34:02 C 16 11 45.25 +07 06 57.0 V C40
2024-07-03 20:35:36 C 16 11 46.06 +07 07 05.0 V C40
2024-07-03 20:37:08 C 16 11 46.86 +07 07 13.0 V C40
2024-07-03 20:38:42 C 16 11 47.67 +07 07 21.0 V C40
2024-07-03 20:40:16 C 16 11 48.48 +07 07 29.1 V C40
2024-07-03 20:41:48 C 16 11 49.29 +07 07 37.2 V C40
2024-07-03 20:43:22 C 16 11 50.10 +07 07 45.1 V C40
2024-07-03 20:53:41 V 16 11 57.86 +07 08 40.8 V 270
2024-07-03 20:53:41 v 1 005.04443 +43.83934 270
2024-07-03 21:06:51 V 16 12 04.58 +07 09 47.8 V 270
2024-07-03 21:06:51 v 1 005.04443 +43.83934 270
2024-07-03 21:19:58 V 16 12 11.34 +07 10 55.0 V 270
2024-07-03 21:19:58 v 1 005.04443 +43.83934 270
2024-07-03 21:33:00 V 16 12 17.99 +07 12 01.4 V 270
2024-07-03 21:33:00 v 1 005.04443 +43.83934 270
2024-07-04 01:41:43 V 16 14 29.05 +07 32 54.7 V 270
2024-07-04 01:41:43 v 1 279.30491 +34.19516 270
2024-07-04 01:57:16 V 16 14 36.62 +07 34 10.3 V 270
2024-07-04 01:57:16 v 1 279.30491 +34.19516 270
2024-07-04 02:09:07 V 16 14 42.34 +07 35 07.4 V 270
2024-07-04 02:09:07 v 1 279.30491 +34.19516 270
2024-07-04 02:20:54 V 16 14 48.08 +07 36 04.7 V 270
2024-07-04 02:20:54 v 1 279.30491 +34.19516 270
2024-07-04 02:48:46 C 16 15 00.682 +07 39 49.14 V W68
2024-07-04 02:53:19 C 16 15 02.875 +07 40 10.92 V W68
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)