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
2024-07-05 20:07:26 C 16 32 07.913 +10 17 18.60 q K73
2024-07-05 20:16:55 C 16 32 10.757 +10 19 09.05 V M22
2024-07-05 20:29:16 C 16 32 14.741 +10 19 46.78 V M22
2024-07-05 20:44:59 C 16 32 19.814 +10 20 34.62 V M22
2024-07-05 21:27:07 B 16 32 33.749 +10 21 23.50 V L92
2024-07-05 21:27:15 V 16 32 34.20 +10 21 16.7 V 270
2024-07-05 21:27:15 v 1 011.16237 +45.34056 270
2024-07-05 21:28:10 B 16 32 34.094 +10 21 26.62 V L92
2024-07-05 21:29:12 B 16 32 34.424 +10 21 29.75 V L92
2024-07-05 21:30:15 B 16 32 34.740 +10 21 32.73 V L92
2024-07-05 21:31:17 B 16 32 35.095 +10 21 36.04 V L92
2024-07-05 21:32:19 B 16 32 35.424 +10 21 39.21 V L92
2024-07-05 21:37:34 B 16 32 37.087 +10 21 54.89 V L92
2024-07-05 21:40:21 V 16 32 38.46 +10 21 56.5 V 270
2024-07-05 21:40:21 v 1 011.16237 +45.34056 270
2024-07-05 21:44:35 V 16 32 40.22 +10 22 07.1 V 270
2024-07-05 21:44:35 v 1 002.21195 +44.70150 270
2024-07-05 21:46:18 V 16 32 40.78 +10 22 12.1 V 270
2024-07-05 21:46:18 v 1 002.21195 +44.70150 270
2024-07-05 21:48:01 V 16 32 41.30 +10 22 17.4 V 270
2024-07-05 21:48:01 v 1 002.21195 +44.70150 270
2024-07-05 21:50:38 C 16 32 41.15 +10 22 24.5 M32
2024-07-05 21:52:18 C 16 32 41.70 +10 22 29.4 M32
2024-07-05 21:53:12 V 16 32 42.60 +10 22 35.5 V 270
2024-07-05 21:53:12 v 1 011.16237 +45.34056 270
2024-07-05 21:53:58 C 16 32 42.24 +10 22 34.4 M32
2024-07-05 21:54:09 V 16 32 43.28 +10 22 35.0 V 270
2024-07-05 21:54:09 v 1 004.83115 +47.04030 270
2024-07-05 21:55:56 C 16 32 42.87 +10 22 40.5 M32
2024-07-05 21:58:16 C 16 32 43.63 +10 22 47.5 M32
2024-07-05 22:06:02 V 16 32 46.74 +10 23 13.7 V 270
2024-07-05 22:06:02 v 1 011.16237 +45.34056 270
2024-07-05 22:07:08 V 16 32 47.37 +10 23 15.9 V 270
2024-07-05 22:07:08 v 1 004.83115 +47.04030 270
2024-07-05 22:12:36 C 16 32 48.49 +10 23 29.7 X G02
2024-07-05 22:18:38 C 16 32 50.41 +10 23 47.2 X G02
2024-07-05 22:20:06 V 16 32 51.51 +10 23 54.8 V 270
2024-07-05 22:20:06 v 1 004.83115 +47.04030 270
2024-07-05 22:24:40 C 16 32 52.38 +10 24 05.8 X G02
2024-07-05 22:31:14 B 16 32 54.08 +10 24 23.0 X L99
2024-07-05 22:31:41 B 16 32 54.28 +10 24 24.9 X L99
2024-07-05 22:32:08 B 16 32 54.37 +10 24 25.8 X L99
2024-07-05 22:32:35 B 16 32 54.48 +10 24 26.6 X L99
2024-07-05 22:33:02 B 16 32 54.69 +10 24 27.8 X L99
2024-07-05 22:33:08 V 16 32 55.75 +10 24 34.0 V 270
2024-07-05 22:33:08 v 1 004.83115 +47.04030 270
2024-07-06 00:08:53 C 16 33 30.602 +10 30 43.63 Z W88
2024-07-06 00:36:42 C 16 33 39.346 +10 32 05.71 Z W88
2024-07-06 00:54:12 C 16 33 44.10 +10 32 59.8 834
2024-07-06 01:22:02 C 16 33 53.474 +10 34 18.73 Z W88
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)