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
2024-07-08 21:14:00 B 16 51 08.508 +12 58 58.23 V L92
2024-07-08 21:14:38 V 16 51 09.17 +12 58 53.2 V 270
2024-07-08 21:14:38 v 1 004.83121 +47.04031 270
2024-07-08 21:16:03 B 16 51 08.921 +12 59 01.59 V L92
2024-07-08 21:18:06 B 16 51 09.267 +12 59 04.23 V L92
2024-07-08 21:20:08 B 16 51 09.695 +12 59 07.86 V L92
2024-07-08 21:22:10 B 16 51 10.084 +12 59 11.21 V L92
2024-07-08 21:24:13 B 16 51 10.443 +12 59 14.20 V L92
2024-07-08 21:24:17 C 16 51 10.62 +12 59 06.4 Y 557
2024-07-08 21:26:15 B 16 51 10.832 +12 59 17.52 V L92
2024-07-08 21:27:21 V 16 51 11.60 +12 59 13.0 V 270
2024-07-08 21:27:21 v 1 004.83121 +47.04031 270
2024-07-08 21:28:18 B 16 51 11.210 +12 59 20.77 V L92
2024-07-08 21:30:20 B 16 51 11.588 +12 59 23.43 V L92
2024-07-08 21:32:22 B 16 51 11.975 +12 59 27.04 V L92
2024-07-08 21:34:25 B 16 51 12.342 +12 59 29.99 V L92
2024-07-08 21:36:27 B 16 51 12.756 +12 59 33.44 V L92
2024-07-08 21:38:29 B 16 51 13.199 +12 59 36.16 V L92
2024-07-08 21:40:03 V 16 51 13.94 +12 59 32.7 V 270
2024-07-08 21:40:03 v 1 004.83121 +47.04031 270
2024-07-08 21:40:32 B 16 51 13.448 +12 59 39.40 V L92
2024-07-08 21:42:34 B 16 51 13.879 +12 59 43.16 V L92
2024-07-08 21:44:36 B 16 51 14.276 +12 59 46.09 V L92
2024-07-08 21:46:39 B 16 51 14.648 +12 59 49.29 V L92
2024-07-08 21:48:41 B 16 51 15.039 +12 59 52.81 V L92
2024-07-08 21:50:43 B 16 51 15.390 +12 59 55.38 V L92
2024-07-08 21:52:46 B 16 51 15.792 +12 59 58.35 V L92
2024-07-08 21:52:58 V 16 51 16.38 +12 59 53.6 V 270
2024-07-08 21:52:58 v 1 004.83121 +47.04031 270
2024-07-08 21:54:48 B 16 51 16.153 +13 00 01.19 V L92
2024-07-08 21:56:50 B 16 51 16.533 +13 00 05.09 V L92
2024-07-08 21:58:53 B 16 51 16.913 +13 00 07.83 V L92
2024-07-08 22:00:55 B 16 51 17.294 +13 00 11.27 V L92
2024-07-08 22:04:47 C 16 51 18.14 +13 00 10.0 V 118
2024-07-08 22:12:58 C 16 51 20.35 +13 00 27.7 Z 586
2024-07-08 22:15:44 C 16 51 20.34 +13 00 26.1 Y 557
2024-07-08 22:32:30 C 16 51 23.97 +13 00 57.6 Z 586
2024-07-08 22:33:15 C 16 51 23.51 +13 00 53.7 V 118
2024-07-08 22:51:40 C 16 51 26.98 +13 01 22.1 V 118
2024-07-08 22:54:10 C 16 51 27.98 +13 01 30.7 Z 586
2024-07-08 23:03:35 C 16 51 29.167 +13 01 39.50 q 056
2024-07-08 23:10:38 C 16 51 30.69 +13 01 50.2 Y 557
2024-07-08 23:13:05 C 16 51 30.974 +13 01 53.94 q 056
2024-07-08 23:22:35 C 16 51 32.762 +13 02 08.34 q 056
2024-07-08 23:26:13 V 16 51 33.66 +13 02 17.0 V 270
2024-07-08 23:26:13 v 1 011.16233 +45.34060 270
2024-07-08 23:33:38 C 16 51 34.877 +13 02 25.22 q 056
2024-07-08 23:38:43 V 16 51 36.01 +13 02 36.4 V 270
2024-07-08 23:38:43 v 1 011.16233 +45.34060 270
2024-07-08 23:51:38 V 16 51 38.41 +13 02 55.5 V 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)