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
2024-07-04 03:01:09 C 16 15 06.643 +07 40 48.58 V W68
2024-07-04 03:33:11 C 16 15 21.994 +07 43 20.89 V W68
2024-07-04 03:45:58 V 16 15 30.23 +07 42 54.3 V 270
2024-07-04 03:45:58 v 1 263.84452 +33.54454 270
2024-07-04 03:57:42 C 16 15 33.83 +07 45 17.51 W89
2024-07-04 03:57:49 V 16 15 35.87 +07 43 50.5 V 270
2024-07-04 03:57:49 v 1 263.84452 +33.54454 270
2024-07-04 03:58:05 C 16 15 34.02 +07 45 19.31 W89
2024-07-04 03:58:28 C 16 15 34.19 +07 45 21.12 W89
2024-07-04 03:58:52 C 16 15 34.38 +07 45 22.97 W89
2024-07-04 03:59:15 C 16 15 34.56 +07 45 24.87 W89
2024-07-04 03:59:39 C 16 15 34.76 +07 45 26.66 W89
2024-07-04 04:00:02 C 16 15 34.95 +07 45 28.48 W89
2024-07-04 04:00:25 C 16 15 35.13 +07 45 30.37 W89
2024-07-04 04:00:48 C 16 15 35.31 +07 45 32.28 W89
2024-07-04 04:01:12 C 16 15 35.50 +07 45 33.97 W89
2024-07-04 04:01:35 C 16 15 35.68 +07 45 35.79 W89
2024-07-04 04:01:58 C 16 15 35.87 +07 45 37.65 W89
2024-07-04 04:02:21 C 16 15 36.05 +07 45 39.44 W89
2024-07-04 04:02:45 C 16 15 36.24 +07 45 41.18 W89
2024-07-04 04:03:08 C 16 15 36.43 +07 45 43.21 W89
2024-07-04 04:03:31 C 16 15 36.61 +07 45 44.84 W89
2024-07-04 04:03:54 C 16 15 36.79 +07 45 46.85 W89
2024-07-04 04:04:17 C 16 15 36.97 +07 45 48.61 W89
2024-07-04 04:04:41 C 16 15 37.16 +07 45 50.39 W89
2024-07-04 04:05:04 C 16 15 37.35 +07 45 52.20 W89
2024-07-04 04:05:27 C 16 15 37.54 +07 45 54.07 W89
2024-07-04 04:05:51 C 16 15 37.72 +07 45 55.95 W89
2024-07-04 04:06:14 C 16 15 37.92 +07 45 57.80 W89
2024-07-04 04:06:37 C 16 15 38.10 +07 45 59.68 W89
2024-07-04 04:07:00 C 16 15 38.29 +07 46 01.39 W89
2024-07-04 04:07:24 C 16 15 38.46 +07 46 03.17 W89
2024-07-04 04:07:47 C 16 15 38.65 +07 46 05.15 W89
2024-07-04 04:08:10 C 16 15 38.83 +07 46 06.83 W89
2024-07-04 04:08:33 C 16 15 39.01 +07 46 08.76 W89
2024-07-04 04:09:20 C 16 15 39.39 +07 46 12.25 W89
2024-07-04 04:09:40 V 16 15 41.43 +07 44 46.3 V 270
2024-07-04 04:09:40 v 1 263.84452 +33.54454 270
2024-07-04 04:09:43 C 16 15 39.56 +07 46 14.20 W89
2024-07-04 04:10:06 C 16 15 39.76 +07 46 15.97 W89
2024-07-04 04:10:30 C 16 15 39.95 +07 46 17.75 W89
2024-07-04 04:10:53 C 16 15 40.14 +07 46 19.50 W89
2024-07-04 04:11:16 C 16 15 40.32 +07 46 21.33 W89
2024-07-04 04:11:39 C 16 15 40.50 +07 46 23.20 W89
2024-07-04 04:12:03 C 16 15 40.68 +07 46 24.97 W89
2024-07-04 04:12:26 C 16 15 40.87 +07 46 26.94 W89
2024-07-04 04:12:49 C 16 15 41.05 +07 46 28.73 W89
2024-07-04 04:21:31 V 16 15 47.08 +07 45 42.3 V 270
2024-07-04 04:21:31 v 1 263.84452 +33.54454 270
2024-07-04 04:50:51 V 16 16 01.13 +07 48 06.0 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)