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
2024-07-07 09:06:31 C 16 43 00.293 +11 52 49.44 V T05
2024-07-07 09:10:15 C 16 43 01.133 +11 52 58.55 V T08
2024-07-07 09:21:11 C 16 43 03.792 +11 53 20.69 V T05
2024-07-07 09:29:28 C 16 43 05.719 +11 53 39.44 V T08
2024-07-07 20:58:08 V 16 45 55.18 +12 16 34.2 V 270
2024-07-07 20:58:08 v 1 004.05000 +48.28000 270
2024-07-07 21:10:51 V 16 45 58.02 +12 16 58.9 V 270
2024-07-07 21:10:51 v 1 004.05000 +48.28000 270
2024-07-07 21:23:33 V 16 46 00.83 +12 17 23.4 V 270
2024-07-07 21:23:33 v 1 004.05000 +48.28000 270
2024-07-07 21:36:15 V 16 46 03.67 +12 17 48.6 V 270
2024-07-07 21:36:15 v 1 004.05000 +48.28000 270
2024-07-08 02:59:16 V 16 47 18.73 +12 28 10.2 V 270
2024-07-08 02:59:16 v 1 261.56107 +29.57980 270
2024-07-08 02:59:23 C 16 47 17.184 +12 29 04.20 V W68
2024-07-08 03:02:04 V 16 47 19.28 +12 28 15.3 V 270
2024-07-08 03:02:04 v 1 261.56107 +29.57980 270
2024-07-08 03:04:00 C 16 47 18.158 +12 29 12.59 V W68
2024-07-08 03:04:52 V 16 47 19.89 +12 28 19.8 V 270
2024-07-08 03:04:52 v 1 261.56107 +29.57980 270
2024-07-08 03:07:40 V 16 47 20.50 +12 28 24.8 V 270
2024-07-08 03:07:40 v 1 261.56107 +29.57980 270
2024-07-08 03:11:50 C 16 47 19.807 +12 29 26.81 V W68
2024-07-08 03:30:10 C 16 47 23.662 +12 30 00.14 V W68
2024-07-08 03:33:20 V 16 47 24.57 +12 29 02.4 V 270
2024-07-08 03:33:20 v 1 286.31380 +40.72240 270
2024-07-08 03:46:10 V 16 47 27.30 +12 29 26.0 V 270
2024-07-08 03:46:10 v 1 286.31380 +40.72240 270
2024-07-08 03:59:01 V 16 47 30.01 +12 29 49.0 V 270
2024-07-08 03:59:01 v 1 286.31380 +40.72240 270
2024-07-08 04:11:51 V 16 47 32.71 +12 30 11.9 V 270
2024-07-08 04:11:51 v 1 286.31380 +40.72240 270
2024-07-08 08:24:19 C 16 48 28.956 +12 38 01.61 V T08
2024-07-08 08:28:10 B 16 48 27.50 +12 37 52.0 V25
2024-07-08 08:28:26 C 16 48 29.786 +12 38 08.81 V T08
2024-07-08 08:44:40 B 16 48 30.94 +12 38 20.4 V25
2024-07-08 08:51:50 C 16 48 34.490 +12 38 49.45 V T08
2024-07-08 08:59:58 C 16 48 36.122 +12 39 03.49 V T08
2024-07-08 20:03:59 C 16 50 55.20 +12 57 00.4 X G02
2024-07-08 20:09:01 C 16 50 56.17 +12 57 08.3 X G02
2024-07-08 20:14:02 C 16 50 57.13 +12 57 16.3 X G02
2024-07-08 20:26:02 C 16 50 59.73 +12 57 39.2 V G17
2024-07-08 20:28:53 C 16 51 00.27 +12 57 43.7 V G17
2024-07-08 20:31:06 C 16 51 00.54 +12 57 42.9 Y 557
2024-07-08 20:31:44 C 16 51 00.81 +12 57 48.2 V G17
2024-07-08 20:34:36 C 16 51 01.36 +12 57 52.8 V G17
2024-07-08 21:02:37 B 16 51 06.650 +12 58 36.80 V 160
2024-07-08 21:07:42 B 16 51 07.610 +12 58 44.83 V 160
2024-07-08 21:11:57 B 16 51 08.134 +12 58 55.70 V L92
2024-07-08 21:12:29 B 16 51 08.513 +12 58 52.36 V 160
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)