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
2011-10-21 09:58:16 C 09 53 21.79 +06 39 01.8 t H21
2011-10-21 10:29:21 C 09 53 26.11 +06 38 10.1 u H36
2011-10-21 10:42:55 C 09 53 28.03 +06 37 47.2 u H36
2011-10-21 10:56:30 C 09 53 29.89 +06 37 24.5 u H36
2011-10-21 11:08:54 C 09 53 31.61 +06 37 03.6 u H36
2011-10-23 12:09:50 C 10 00 26.13 +05 13 16.5 o 291
2011-10-23 12:12:23 C 10 00 26.47 +05 13 12.1 o 291
2011-10-23 12:14:55 C 10 00 26.84 +05 13 07.7 o 291
2011-10-24 12:18:46 C 10 03 53.78 +04 30 47.8 o 291
2011-10-24 12:21:19 C 10 03 54.15 +04 30 43.1 o 291
2011-10-24 12:23:51 C 10 03 54.50 +04 30 38.7 o 291
2011-10-25 12:07:18 C 10 07 20.83 +03 48 08.5 o 291
2011-10-25 12:09:50 C 10 07 21.18 +03 48 03.9 o 291
2011-10-25 12:12:29 C 10 07 21.57 +03 47 58.9 o 291
2011-10-26 10:48:38 C 10 10 40.44 +03 06 46.0 c H06
2011-10-26 10:51:50 C 10 10 40.91 +03 06 40.2 c H06
2011-10-27 03:02:45 C 10 13 04.55 +02 36 43.1 u 104
2011-10-27 03:19:12 C 10 13 06.99 +02 36 12.5 u 104
2011-10-27 03:34:19 C 10 13 09.23 +02 35 44.5 u 104
2011-10-27 11:34:09 C 10 14 20.69 +02 20 50.6 o 695
2011-10-27 11:36:36 C 10 14 21.05 +02 20 45.9 o 695
2011-10-27 11:37:37 C 10 14 21.21 +02 20 44.0 o 695
2011-10-27 14:33:47 C 10 14 47.56 +02 15 15.0 t F65
2011-10-27 14:35:15 C 10 14 47.78 +02 15 12.3 t F65
2011-10-27 14:36:41 C 10 14 47.99 +02 15 09.7 t F65
2011-10-27 14:38:10 C 10 14 48.21 +02 15 06.8 t F65
2011-10-27 14:39:36 C 10 14 48.43 +02 15 04.2 t F65
2011-10-27 14:41:04 C 10 14 48.64 +02 15 01.3 t F65
2011-10-28 03:56:13 C 10 16 47.79 +01 49 59.8 u 104
2011-10-28 04:04:30 C 10 16 49.03 +01 49 44.2 u 104
2011-10-28 04:12:58 C 10 16 50.30 +01 49 28.1 u 104
2011-10-28 09:48:26 C 10 17 40.86 +01 38 52.2 u 932
2011-10-28 10:00:08 C 10 17 42.56 +01 38 29.0 u 932
2011-10-30 03:41:05 C 10 24 04.28 +00 18 03.1 u B33
2011-10-30 04:10:15 C 10 24 08.73 +00 17 05.9 u B33
2011-10-30 11:47:21 C 10 25 19.49 +00 02 09.9 o 291
2011-10-30 11:50:02 C 10 25 19.90 +00 02 04.4 o 291
2011-10-30 11:52:41 C 10 25 20.32 +00 01 59.2 o 291
2011-11-01 04:34:16 C 10 31 42.88 -01 19 11.4 u G36
2011-11-01 04:58:18 C 10 31 46.68 -01 20 00.3 u G36
2011-11-01 05:05:54 C 10 31 47.86 -01 20 15.4 u G36
2011-11-01 05:13:01 C 10 31 48.98 -01 20 29.8 u G36
2011-11-01 05:20:08 C 10 31 50.10 -01 20 44.2 u G36
2011-11-01 12:24:15 C 10 32 57.52 -01 35 02.8 o 291
2011-11-01 12:26:47 C 10 32 57.90 -01 35 08.0 o 291
2011-11-01 12:29:17 C 10 32 58.28 -01 35 13.0 o 291
2011-11-02 09:18:56 C 10 36 18.40 -02 17 48.7 18.9 u 932
2011-11-02 09:35:15 C 10 36 21.02 -02 18 21.9 19.7 u 932
2011-11-02 09:52:14 C 10 36 23.75 -02 18 57.1 18.7 u 932
2011-11-03 12:19:22 C 10 40 41.48 -03 13 47.7 o 291
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)