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
2024-07-15 01:38:27 B 17 11 31.12 +15 15 49.5 W79
2024-07-15 01:51:09 B 17 11 32.24 +15 15 55.8 W79
2024-07-15 04:22:05 V 17 11 46.75 +15 16 42.3 V 270
2024-07-15 04:22:05 v 1 262.17106 +30.43763 270
2024-07-15 04:27:38 V 17 11 46.82 +15 16 38.5 V 270
2024-07-15 04:27:38 v 1 262.17106 +30.43763 270
2024-07-15 04:29:37 V 17 11 46.94 +15 16 40.8 V 270
2024-07-15 04:29:37 v 1 262.17106 +30.43763 270
2024-07-15 04:31:13 V 17 11 47.18 +15 16 39.4 V 270
2024-07-15 04:31:13 v 1 262.17106 +30.43763 270
2024-07-15 04:36:55 V 17 11 48.39 +15 16 38.3 V 270
2024-07-15 04:36:55 v 1 239.78471 +39.32862 270
2024-07-15 04:49:37 V 17 11 49.50 +15 16 44.3 V 270
2024-07-15 04:49:37 v 1 239.78471 +39.32862 270
2024-07-15 05:02:20 V 17 11 50.61 +15 16 50.4 V 270
2024-07-15 05:02:20 v 1 239.78471 +39.32862 270
2024-07-15 05:14:50 V 17 11 51.69 +15 16 56.5 V 270
2024-07-15 05:14:50 v 1 239.78471 +39.32862 270
2024-07-15 06:47:02 C 17 12 00.994 +15 17 49.85 V T05
2024-07-15 06:51:37 C 17 12 01.387 +15 17 52.08 V T05
2024-07-15 06:57:00 C 17 12 01.853 +15 17 54.60 V T05
2024-07-15 07:04:48 C 17 12 02.522 +15 17 58.42 V T05
2024-07-15 19:23:07 C 17 13 10.33 +15 23 14.7 V C40
2024-07-15 19:25:55 C 17 13 10.57 +15 23 15.5 V C40
2024-07-15 19:28:43 C 17 13 10.81 +15 23 16.5 V C40
2024-07-15 19:31:31 C 17 13 11.04 +15 23 17.7 V C40
2024-07-15 19:34:19 C 17 13 11.28 +15 23 18.9 V C40
2024-07-15 19:37:07 C 17 13 11.52 +15 23 20.0 V C40
2024-07-15 19:39:55 C 17 13 11.75 +15 23 21.2 V C40
2024-07-15 19:42:42 C 17 13 11.98 +15 23 22.3 V C40
2024-07-15 19:45:29 C 17 13 12.21 +15 23 23.4 V C40
2024-07-15 19:48:18 C 17 13 12.45 +15 23 24.7 V C40
2024-07-15 19:50:05 C 17 13 13.12 +15 23 23.0 X G02
2024-07-15 19:51:04 C 17 13 12.68 +15 23 25.7 V C40
2024-07-15 19:53:53 C 17 13 12.92 +15 23 27.0 V C40
2024-07-15 19:55:59 C 17 13 13.63 +15 23 25.8 X G02
2024-07-15 20:01:34 C 17 13 14.10 +15 23 28.3 X G02
2024-07-15 20:02:17 C 17 13 14.314 +15 23 30.73 q M19
2024-07-15 20:11:32 C 17 13 14.40 +15 23 34.4 V C40
2024-07-15 20:12:22 C 17 13 15.163 +15 23 34.98 q M19
2024-07-15 20:14:20 C 17 13 14.64 +15 23 35.6 V C40
2024-07-15 20:17:07 C 17 13 14.87 +15 23 36.6 V C40
2024-07-15 20:19:54 C 17 13 15.11 +15 23 37.7 V C40
2024-07-15 20:21:20 C 17 13 15.910 +15 23 38.87 q M19
2024-07-15 20:22:42 C 17 13 15.34 +15 23 38.9 V C40
2024-07-15 20:25:29 C 17 13 15.58 +15 23 40.0 V C40
2024-07-15 20:28:18 C 17 13 15.81 +15 23 41.3 V C40
2024-07-15 20:31:06 C 17 13 16.05 +15 23 42.4 V C40
2024-07-15 20:31:24 C 17 13 16.754 +15 23 43.01 q M19
2024-07-15 20:33:54 C 17 13 16.28 +15 23 43.4 V C40
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)