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
2024-07-27 08:29:12 C 17 31 17.076 +15 57 20.23 V T05
2024-07-27 08:34:25 C 17 31 17.316 +15 57 19.87 V T05
2024-07-27 08:44:13 C 17 31 17.762 +15 57 19.12 V T05
2024-07-27 08:51:31 C 17 31 18.079 +15 57 18.90 V T08
2024-07-27 08:55:47 C 17 31 18.281 +15 57 18.54 V T08
2024-07-27 09:04:20 C 17 31 18.670 +15 57 17.89 V T08
2024-07-27 18:45:16 C 17 31 48.54 +15 56 26.8 V C40
2024-07-27 18:48:03 C 17 31 48.67 +15 56 26.5 V C40
2024-07-27 18:50:50 C 17 31 48.80 +15 56 26.2 V C40
2024-07-27 18:53:38 C 17 31 48.94 +15 56 26.1 V C40
2024-07-27 18:56:26 C 17 31 49.06 +15 56 25.8 V C40
2024-07-27 18:59:13 C 17 31 49.19 +15 56 25.7 V C40
2024-07-27 19:02:01 C 17 31 49.32 +15 56 25.4 V C40
2024-07-27 19:04:48 C 17 31 49.44 +15 56 25.2 V C40
2024-07-27 19:07:35 C 17 31 49.58 +15 56 24.9 V C40
2024-07-27 19:10:24 C 17 31 49.71 +15 56 24.7 V C40
2024-07-27 19:13:12 C 17 31 49.84 +15 56 24.5 V C40
2024-07-27 19:16:00 C 17 31 49.97 +15 56 24.3 V C40
2024-07-27 20:01:52 C 17 31 52.45 +15 56 19.8 V 118
2024-07-27 20:40:22 B 17 31 54.43 +15 56 17.9 Z D50
2024-07-27 20:53:58 C 17 31 54.88 +15 56 15.4 V 118
2024-07-27 21:30:21 B 17 31 56.74 +15 56 13.8 Z D50
2024-07-27 21:38:38 C 17 31 56.96 +15 56 11.6 V 118
2024-07-27 22:21:00 B 17 31 59.08 +15 56 09.4 Z D50
2024-07-27 22:23:16 C 17 31 59.05 +15 56 07.7 V 118
2024-07-28 02:45:07 C 17 32 12.437 +15 56 10.10 V W68
2024-07-28 02:49:41 C 17 32 12.638 +15 56 09.67 V W68
2024-07-28 03:15:16 C 17 32 13.805 +15 56 07.37 V W68
2024-07-28 19:19:54 C 17 33 02.20 +15 54 14.0 X G02
2024-07-28 19:26:20 C 17 33 02.47 +15 54 13.9 X G02
2024-07-28 19:32:29 C 17 33 02.73 +15 54 13.2 X G02
2024-07-28 20:13:43 C 17 33 04.67 +15 54 09.2 V 118
2024-07-28 20:32:21 C 17 33 05.53 +15 54 07.3 V 118
2024-07-28 21:13:49 B 17 33 07.58 +15 54 04.4 Z D50
2024-07-28 21:16:39 C 17 33 07.733 +15 54 02.27 Z C23
2024-07-28 21:43:05 C 17 33 08.76 +15 53 59.9 V 118
2024-07-28 21:55:42 B 17 33 09.348 +15 54 01.13 V L92
2024-07-28 22:07:26 B 17 33 10.01 +15 53 58.9 Z D50
2024-07-28 22:15:04 B 17 33 10.098 +15 53 59.15 V L92
2024-07-28 22:20:11 B 17 33 10.453 +15 53 58.15 V L92
2024-07-28 22:25:17 B 17 33 10.648 +15 53 57.67 V L92
2024-07-28 22:30:40 C 17 33 11.114 +15 53 54.53 Z C23
2024-07-28 22:54:45 C 17 33 12.19 +15 53 53.3 W D51
2024-07-28 22:56:47 C 17 33 12.27 +15 53 53.3 W D51
2024-07-28 22:58:48 C 17 33 12.37 +15 53 52.9 W D51
2024-07-29 00:35:21 C 17 33 16.860 +15 53 40.13 Z C23
2024-07-29 08:40:07 C 17 33 40.942 +15 52 59.24 X F51
2024-07-29 08:40:37 C 17 33 40.946 +15 52 59.66 V T08
2024-07-29 08:45:25 C 17 33 41.160 +15 52 59.02 V T08
2024-07-29 08:55:51 C 17 33 41.621 +15 52 57.79 V T08
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)