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
2024-01-29 07:48:31 C 03 17 10.956 +24 12 05.72 V T05
2024-01-30 04:50:21 C 03 17 11.720 +23 48 56.38 V 703
2024-01-30 04:53:36 C 03 17 11.692 +23 48 51.95 V 703
2024-01-30 04:56:51 C 03 17 11.670 +23 48 49.21 V 703
2024-01-30 05:00:06 C 03 17 11.702 +23 48 45.00 V 703
2024-01-30 06:21:10 C 03 17 12.022 +23 47 18.78 V T08
2024-01-30 06:31:01 C 03 17 11.990 +23 47 08.48 V T08
2024-01-30 06:46:28 C 03 17 11.971 +23 46 51.20 V T08
2024-01-30 06:50:43 C 03 17 11.969 +23 46 46.74 V T08
2024-01-31 07:11:19 C 03 17 15.960 +23 20 20.83 V T08
2024-01-31 07:15:58 C 03 17 15.998 +23 20 16.22 V T08
2024-01-31 07:27:25 C 03 17 16.013 +23 20 03.73 V T08
2024-01-31 07:41:45 C 03 17 16.058 +23 19 48.58 V T08
2024-02-01 06:56:17 C 03 17 23.011 +22 54 54.22 V T05
2024-02-01 07:03:40 C 03 17 23.088 +22 54 46.40 V T05
2024-02-01 07:08:13 C 03 17 23.074 +22 54 41.83 V T05
2024-02-01 07:23:29 C 03 17 23.105 +22 54 25.02 V T05
2024-02-03 06:56:48 C 03 17 46.085 +22 04 27.59 V T08
2024-02-03 07:01:27 C 03 17 46.152 +22 04 22.55 V T08
2024-02-03 07:12:16 C 03 17 46.229 +22 04 11.28 V T08
2024-02-03 07:30:16 C 03 17 46.354 +22 03 52.45 V T08
2024-02-04 06:56:04 C 03 18 01.939 +21 39 45.14 V T08
2024-02-04 07:00:44 C 03 18 02.023 +21 39 40.79 V T08
2024-02-04 07:09:02 C 03 18 02.131 +21 39 31.90 V T08
2024-02-04 07:29:57 C 03 18 02.309 +21 39 10.19 V T08
2024-02-05 06:46:51 C 03 18 20.597 +21 15 30.46 V T05
2024-02-05 06:51:25 C 03 18 20.638 +21 15 26.10 V T05
2024-02-05 06:59:54 C 03 18 20.758 +21 15 17.93 V T05
2024-02-05 07:14:13 C 03 18 20.926 +21 15 02.99 V T05
2024-02-06 06:42:17 C 03 18 41.995 +20 51 31.14 V T05
2024-02-06 06:46:50 C 03 18 42.074 +20 51 26.64 V T05
2024-02-06 06:54:40 C 03 18 42.158 +20 51 18.54 V T05
2024-02-06 07:09:00 C 03 18 42.365 +20 51 04.28 V T05
2024-02-07 07:12:15 C 03 19 06.629 +20 27 17.24 V T08
2024-02-07 07:16:54 C 03 19 06.742 +20 27 12.64 V T08
2024-02-07 07:31:16 C 03 19 06.929 +20 26 58.27 V T08
2024-02-07 07:44:56 C 03 19 07.181 +20 26 44.23 V T08
2024-02-09 06:39:02 C 03 20 02.398 +19 41 16.19 V T05
2024-02-09 06:43:35 C 03 20 02.477 +19 41 11.98 V T05
2024-02-09 06:51:25 C 03 20 02.662 +19 41 04.31 V T05
2024-02-09 07:05:45 C 03 20 02.928 +19 40 50.45 V T05
2024-02-10 06:39:39 C 03 20 34.373 +19 18 27.79 V T05
2024-02-10 06:47:01 C 03 20 34.519 +19 18 20.52 V T05
2024-02-10 06:52:54 C 03 20 34.630 +19 18 14.76 V T05
2024-02-10 07:23:16 C 03 20 35.292 +19 17 46.00 V T05
2024-02-13 05:34:18 C 03 22 23.438 +18 12 47.12 V T05
2024-02-13 05:38:52 C 03 22 23.539 +18 12 43.34 V T05
2024-02-13 05:46:52 C 03 22 23.683 +18 12 35.64 V T05
2024-02-13 06:01:55 C 03 22 24.106 +18 12 21.85 V T05
2024-02-14 03:28:43 C 03 23 01.169 +17 52 58.37 V 703
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)