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
2024-07-06 01:30:35 C 16 33 55.39 +10 34 45.6 834
2024-07-06 02:00:46 C 16 34 05.455 +10 36 11.12 Z W88
2024-07-06 02:41:53 C 16 34 18.060 +10 38 09.20 Z W88
2024-07-06 03:36:36 V 16 34 36.65 +10 39 37.0 V 270
2024-07-06 03:36:36 v 1 262.25299 +30.53199 270
2024-07-06 03:49:35 V 16 34 40.57 +10 40 13.6 V 270
2024-07-06 03:49:35 v 1 262.25299 +30.53199 270
2024-07-06 03:58:52 V 16 34 43.37 +10 40 40.6 V 270
2024-07-06 03:58:52 v 1 262.17106 +30.43763 270
2024-07-06 03:59:05 V 16 34 43.85 +10 40 32.3 V 270
2024-07-06 03:59:05 v 1 256.00000 +39.00000 270
2024-07-06 04:02:33 V 16 34 44.47 +10 40 50.2 V 270
2024-07-06 04:02:33 v 1 262.25299 +30.53199 270
2024-07-06 04:12:03 V 16 34 47.82 +10 41 09.0 V 270
2024-07-06 04:12:03 v 1 256.00000 +39.00000 270
2024-07-06 04:12:10 V 16 34 47.41 +10 41 18.5 V 270
2024-07-06 04:12:10 v 1 262.17106 +30.43763 270
2024-07-06 04:15:35 V 16 34 48.41 +10 41 26.9 V 270
2024-07-06 04:15:35 v 1 262.25299 +30.53199 270
2024-07-06 04:25:02 V 16 34 51.71 +10 41 45.5 V 270
2024-07-06 04:25:02 v 1 256.00000 +39.00000 270
2024-07-06 04:25:17 V 16 34 51.33 +10 41 55.2 V 270
2024-07-06 04:25:17 v 1 262.17106 +30.43763 270
2024-07-06 04:25:56 V 16 34 52.79 +10 41 53.8 V 270
2024-07-06 04:25:56 v 1 242.98593 +33.20811 270
2024-07-06 04:38:03 V 16 34 55.17 +10 42 31.1 V 270
2024-07-06 04:38:03 v 1 262.17106 +30.43763 270
2024-07-06 04:38:04 V 16 34 55.62 +10 42 21.9 V 270
2024-07-06 04:38:04 v 1 256.00000 +39.00000 270
2024-07-06 04:38:48 V 16 34 56.65 +10 42 30.0 V 270
2024-07-06 04:38:48 v 1 242.98593 +33.20811 270
2024-07-06 04:52:00 V 16 35 00.63 +10 43 07.2 V 270
2024-07-06 04:52:00 v 1 242.98593 +33.20811 270
2024-07-06 05:04:52 V 16 35 04.46 +10 43 43.6 V 270
2024-07-06 05:04:52 v 1 242.98593 +33.20811 270
2024-07-06 06:01:55 V 16 35 21.69 +10 46 21.8 V 270
2024-07-06 06:01:55 v 1 240.91478 +34.23820 270
2024-07-06 06:27:48 V 16 35 29.32 +10 47 33.3 V 270
2024-07-06 06:27:48 v 1 240.91478 +34.23820 270
2024-07-06 06:58:04 V 16 35 38.32 +10 48 56.4 V 270
2024-07-06 06:58:04 v 1 240.91478 +34.23820 270
2024-07-06 07:24:09 V 16 35 46.00 +10 50 07.7 V 270
2024-07-06 07:24:09 v 1 240.91478 +34.23820 270
2024-07-06 08:58:05 V 16 36 17.73 +10 55 38.1 V 270
2024-07-06 08:58:05 v 1 175.46620 -37.91855 270
2024-07-06 09:10:45 V 16 36 21.36 +10 56 12.4 V 270
2024-07-06 09:10:45 v 1 175.46620 -37.91855 270
2024-07-06 09:23:44 V 16 36 25.20 +10 56 47.3 V 270
2024-07-06 09:23:44 v 1 175.46620 -37.91855 270
2024-07-06 09:36:42 V 16 36 28.92 +10 57 22.5 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)