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 04:50:51 v 1 262.17106 +30.43763 270
2024-07-04 04:54:34 V 16 16 02.81 +07 48 22.2 V 270
2024-07-04 04:54:34 v 1 262.17106 +30.43763 270
2024-07-04 04:58:20 V 16 16 04.68 +07 48 38.1 V 270
2024-07-04 04:58:20 v 1 262.17106 +30.43763 270
2024-07-04 05:02:06 V 16 16 06.48 +07 48 56.5 V 270
2024-07-04 05:02:06 v 1 262.17106 +30.43763 270
2024-07-04 09:12:32 V 16 18 08.83 +08 09 33.7 V 270
2024-07-04 09:12:32 v 1 175.46570 -37.91842 270
2024-07-04 09:25:35 V 16 18 14.57 +08 10 26.4 V 270
2024-07-04 09:25:35 v 1 175.46570 -37.91842 270
2024-07-04 09:38:37 V 16 18 20.48 +08 11 26.9 V 270
2024-07-04 09:38:37 v 1 175.46570 -37.91842 270
2024-07-04 09:51:40 V 16 18 26.41 +08 12 25.6 V 270
2024-07-04 09:51:40 v 1 175.46570 -37.91842 270
2024-07-04 12:23:05 C 16 19 37.987 +08 23 21.05 V 323
2024-07-04 12:51:58 C 16 19 50.561 +08 25 25.14 V 323
2024-07-04 13:30:26 V 16 20 07.45 +08 26 55.7 V 270
2024-07-04 13:30:26 v 1 114.16981 +22.37600 270
2024-07-04 13:43:28 V 16 20 13.05 +08 27 50.8 V 270
2024-07-04 13:43:28 v 1 114.16981 +22.37600 270
2024-07-04 13:56:31 V 16 20 18.59 +08 28 46.1 V 270
2024-07-04 13:56:31 v 1 114.16981 +22.37600 270
2024-07-04 14:09:29 V 16 20 24.06 +08 29 40.8 V 270
2024-07-04 14:09:29 v 1 114.16981 +22.37600 270
2024-07-04 14:10:23 V 16 20 22.76 +08 29 29.1 V 270
2024-07-04 14:10:23 v 1 139.13620 +35.33846 270
2024-07-04 14:23:30 V 16 20 28.42 +08 30 23.9 V 270
2024-07-04 14:23:30 v 1 139.13620 +35.33846 270
2024-07-04 14:36:36 V 16 20 34.08 +08 31 18.7 V 270
2024-07-04 14:36:36 v 1 139.13620 +35.33846 270
2024-07-04 14:49:38 V 16 20 39.66 +08 32 12.8 V 270
2024-07-04 14:49:38 v 1 139.13620 +35.33846 270
2024-07-04 15:03:23 V 16 20 45.67 +08 33 08.9 V 270
2024-07-04 15:03:23 v 1 140.17427 +36.06239 270
2024-07-04 15:16:25 V 16 20 51.21 +08 34 02.1 V 270
2024-07-04 15:16:25 v 1 140.17427 +36.06239 270
2024-07-04 15:29:16 V 16 20 56.72 +08 34 55.1 V 270
2024-07-04 15:29:16 v 1 140.17427 +36.06239 270
2024-07-04 15:42:34 V 16 21 02.47 +08 35 49.9 V 270
2024-07-04 15:42:34 v 1 140.17427 +36.06239 270
2024-07-04 19:52:06 C 16 22 54.835 +08 52 35.98 X M26
2024-07-04 20:02:04 C 16 22 58.908 +08 53 15.43 X M26
2024-07-04 20:12:25 C 16 23 03.139 +08 53 56.47 X M26
2024-07-04 20:13:48 C 16 23 01.90 +08 54 00.3 V C40
2024-07-04 20:17:32 C 16 23 03.43 +08 54 14.9 V C40
2024-07-04 20:21:15 C 16 23 04.95 +08 54 29.6 V C40
2024-07-04 20:24:58 C 16 23 06.46 +08 54 44.2 V C40
2024-07-04 20:28:41 C 16 23 07.98 +08 54 58.7 V C40
2024-07-04 20:32:25 C 16 23 09.49 +08 55 13.3 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)