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
2024-07-10 11:52:06 v 1 175.46575 -37.91839 270
2024-07-10 20:01:52 C 16 59 16.60 +13 59 43.7 X G02
2024-07-10 20:06:56 C 16 59 17.33 +13 59 49.2 X G02
2024-07-10 20:11:59 C 16 59 18.06 +13 59 54.6 X G02
2024-07-10 21:42:36 B 16 59 31.169 +14 01 34.21 V 160
2024-07-10 21:44:16 C 16 59 31.157 +14 01 32.70 q 056
2024-07-10 21:46:02 B 16 59 31.680 +14 01 37.96 V 160
2024-07-10 21:49:25 B 16 59 32.172 +14 01 41.70 V 160
2024-07-10 21:56:46 C 16 59 32.899 +14 01 45.23 q 056
2024-07-10 22:15:30 C 16 59 35.602 +14 02 05.35 q 056
2024-07-10 22:38:24 C 16 59 38.851 +14 02 29.51 q 056
2024-07-11 02:17:02 V 17 00 12.84 +14 06 25.3 V 270
2024-07-11 02:17:02 v 1 279.30524 +34.19509 270
2024-07-11 02:29:45 V 17 00 14.59 +14 06 38.5 V 270
2024-07-11 02:29:45 v 1 279.30524 +34.19509 270
2024-07-11 02:42:27 V 17 00 16.35 +14 06 52.0 V 270
2024-07-11 02:42:27 v 1 279.30524 +34.19509 270
2024-07-11 02:54:58 V 17 00 18.03 +14 07 04.8 V 270
2024-07-11 02:54:58 v 1 279.30524 +34.19509 270
2024-07-11 17:00:25 C 17 02 17.36 +14 20 34.5 Y 190
2024-07-11 17:01:07 C 17 02 17.45 +14 20 35.2 Y 190
2024-07-11 17:01:50 C 17 02 17.54 +14 20 35.8 Y 190
2024-07-11 17:02:31 C 17 02 17.63 +14 20 36.3 Y 190
2024-07-11 17:03:15 C 17 02 17.72 +14 20 37.1 Y 190
2024-07-11 17:03:58 C 17 02 17.81 +14 20 37.8 Y 190
2024-07-11 17:04:39 C 17 02 17.89 +14 20 38.4 Y 190
2024-07-11 17:05:21 C 17 02 17.99 +14 20 39.0 Y 190
2024-07-11 17:06:05 C 17 02 18.08 +14 20 39.6 Y 190
2024-07-11 17:06:48 C 17 02 18.17 +14 20 40.4 Y 190
2024-07-11 17:07:29 C 17 02 18.25 +14 20 40.9 Y 190
2024-07-11 17:08:11 C 17 02 18.34 +14 20 41.7 Y 190
2024-07-11 17:08:55 C 17 02 18.44 +14 20 42.2 Y 190
2024-07-11 17:09:36 C 17 02 18.53 +14 20 42.8 Y 190
2024-07-11 17:10:20 C 17 02 18.61 +14 20 43.4 Y 190
2024-07-11 17:11:00 C 17 02 18.70 +14 20 44.1 Y 190
2024-07-11 17:11:44 C 17 02 18.80 +14 20 44.7 Y 190
2024-07-11 17:12:27 C 17 02 18.88 +14 20 45.4 Y 190
2024-07-11 17:13:09 C 17 02 18.96 +14 20 46.1 Y 190
2024-07-11 17:13:50 C 17 02 19.06 +14 20 46.8 Y 190
2024-07-11 17:14:34 C 17 02 19.14 +14 20 47.5 Y 190
2024-07-11 17:15:17 C 17 02 19.24 +14 20 48.0 Y 190
2024-07-11 17:15:58 C 17 02 19.32 +14 20 48.7 Y 190
2024-07-11 17:16:40 C 17 02 19.41 +14 20 49.3 Y 190
2024-07-11 17:17:24 C 17 02 19.52 +14 20 50.0 Y 190
2024-07-11 17:18:06 C 17 02 19.60 +14 20 50.6 Y 190
2024-07-11 17:18:48 C 17 02 19.69 +14 20 51.2 Y 190
2024-07-11 17:19:30 C 17 02 19.78 +14 20 51.9 Y 190
2024-07-11 17:20:13 C 17 02 19.87 +14 20 52.6 Y 190
2024-07-11 17:20:55 C 17 02 19.96 +14 20 53.1 Y 190
2024-07-11 17:21:38 C 17 02 20.03 +14 20 53.6 Y 190
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)