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
2020-10-13 09:45:02 C 06 43 34.67 +43 02 00.6 U I41
2020-10-13 10:55:52 C 06 43 37.36 +43 02 01.2 U I41
2020-10-15 09:26:21 C 06 45 23.58 +43 01 55.7 U I41
2020-10-15 10:39:42 C 06 45 26.21 +43 01 56.1 U I41
2020-10-15 11:17:25 C 06 45 27.56 +43 01 56.5 U I41
2020-10-15 11:44:11 C 06 45 28.50 +43 01 56.3 U I41
2020-10-15 11:53:53 C 06 45 28.83 +43 01 56.3 U I41
2020-10-19 08:51:44 C 06 48 41.66 +43 01 26.5 U I41
2020-10-19 10:17:21 C 06 48 44.30 +43 01 26.7 U I41
2020-10-19 11:09:38 C 06 48 45.91 +43 01 26.7 U I41
2020-10-19 11:13:05 C 06 48 46.02 +43 01 26.8 U I41
2020-10-19 11:44:28 C 06 48 46.97 +43 01 26.6 U I41
2020-10-20 11:38:10 C 06 49 31.89 +43 01 14.7 U I41
2020-10-20 12:41:35 C 06 49 33.71 +43 01 14.3 U I41
2020-10-21 09:45:30 C 06 50 11.96 +43 01 01.2 U I41
2020-10-21 10:40:21 C 06 50 13.50 +43 01 01.1 U I41
2020-10-21 10:48:46 C 06 50 13.74 +43 01 01.3 U I41
2020-10-22 10:40:55 C 06 50 54.86 +43 00 45.1 U I41
2020-10-22 11:12:02 C 06 50 55.68 +43 00 45.0 U I41
2020-10-23 11:47:45 C 06 51 35.86 +43 00 26.5 U I41
2020-10-24 14:04:33 C 06 52 16.46 +43 00 05.9 V T08
2020-10-24 14:07:13 C 06 52 16.47 +43 00 05.4 V T08
2020-10-24 14:12:32 C 06 52 16.72 +43 00 04.8 V T08
2020-10-24 14:21:49 C 06 52 16.95 +43 00 05.5 V T08
2020-10-28 13:42:54 C 06 54 22.17 +42 58 15.6 V T08
2020-10-28 13:47:33 C 06 54 22.26 +42 58 15.7 V T08
2020-10-28 13:52:51 C 06 54 22.35 +42 58 15.3 V T08
2020-10-28 14:40:32 C 06 54 23.11 +42 58 15.3 V T08
2020-11-09 13:00:20 C 06 56 32.04 +42 46 29.8 V T08
2020-11-09 13:11:28 C 06 56 31.97 +42 46 30.1 V T08
2020-11-09 13:14:48 C 06 56 31.94 +42 46 29.4 V T08
2020-11-09 13:24:47 C 06 56 31.84 +42 46 28.2 V T08
2020-11-11 12:22:03 C 06 56 10.900 +42 43 09.99 U F52
2020-11-11 12:39:31 C 06 56 10.685 +42 43 08.78 U F52
2020-11-11 12:57:09 C 06 56 10.464 +42 43 07.50 U F52
2020-11-11 13:31:09 C 06 56 10.041 +42 43 05.09 U F52
2020-11-12 09:13:25 C 06 55 57.16 +42 41 29.6 U I41
2020-11-12 09:25:44 C 06 55 56.99 +42 41 28.6 U I41
2020-11-12 09:44:10 C 06 55 56.72 +42 41 27.3 U I41
2020-11-12 09:58:06 C 06 55 56.52 +42 41 26.2 U I41
2020-11-19 13:23:04 C 06 52 10.11 +42 22 30.9 V T05
2020-11-19 13:27:45 C 06 52 09.95 +42 22 30.1 V T05
2020-11-19 13:37:43 C 06 52 09.62 +42 22 29.2 V T05
2020-11-19 14:26:10 C 06 52 07.93 +42 22 21.8 V T05
2020-11-19 14:26:50 C 06 52 07.89 +42 22 21.7 V T05
2020-11-19 15:37:51 C 06 52 05.41 +42 22 11.0 V T05
2020-11-21 07:41:52 C 06 50 41.34 +42 15 53.6 V G96
2020-11-21 07:49:19 C 06 50 41.05 +42 15 52.5 V G96
2020-11-21 07:56:45 C 06 50 40.74 +42 15 51.4 V G96
2020-11-21 08:04:11 C 06 50 40.45 +42 15 50.2 V G96
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)