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
2021-07-24 16:43:59 S 20 24 13.428 +29 35 08.30 V C57
2021-07-24 16:43:59 s 1 +150433.76 1 +26973.504 2380.0 C57
2021-07-24 18:03:59 S 20 24 03.240 +29 35 07.12 V C57
2021-07-24 18:03:59 s 1 +153528.37 0 +35071.730 8610.0 C57
2021-07-24 18:12:57 C 20 24 22.11 +29 32 58.1 Y N42
2021-07-24 18:15:14 C 20 24 21.95 +29 32 57.7 Y N42
2021-07-24 18:17:32 C 20 24 21.68 +29 32 58.0 Y N42
2021-07-24 18:19:49 C 20 24 21.40 +29 32 58.1 Y N42
2021-07-24 18:22:07 C 20 24 21.12 +29 32 58.2 Y N42
2021-07-24 18:24:24 C 20 24 20.86 +29 32 58.3 Y N42
2021-07-24 18:26:41 C 20 24 20.58 +29 32 58.5 Y N42
2021-07-24 18:28:59 C 20 24 20.33 +29 32 58.6 Y N42
2021-07-24 18:31:16 C 20 24 20.05 +29 32 58.6 Y N42
2021-07-24 18:33:33 C 20 24 19.77 +29 32 58.8 Y N42
2021-07-24 18:35:51 C 20 24 19.47 +29 32 58.3 Y N42
2021-07-24 18:38:08 C 20 24 19.25 +29 32 58.6 Y N42
2021-07-24 18:40:25 C 20 24 18.96 +29 32 59.0 Y N42
2021-07-24 18:42:42 C 20 24 18.71 +29 32 59.1 Y N42
2021-07-24 18:45:00 C 20 24 18.43 +29 32 59.4 Y N42
2021-07-24 18:47:17 C 20 24 18.17 +29 32 59.4 Y N42
2021-07-24 18:49:34 C 20 24 17.88 +29 32 59.6 Y N42
2021-07-24 18:51:52 C 20 24 17.63 +29 32 59.6 Y N42
2021-07-24 18:54:09 C 20 24 17.34 +29 32 59.7 Y N42
2021-07-24 18:56:26 C 20 24 17.06 +29 32 59.8 Y N42
2021-07-24 18:58:44 C 20 24 16.79 +29 32 59.9 Y N42
2021-07-24 19:01:01 C 20 24 16.54 +29 33 00.0 Y N42
2021-07-24 19:03:19 C 20 24 16.25 +29 33 00.0 Y N42
2021-07-24 19:03:59 S 20 23 55.462 +29 35 12.19 V C57
2021-07-24 19:03:59 s 1 +155640.25 2 +41098.161 9770.0 C57
2021-07-24 19:05:36 C 20 24 15.99 +29 33 00.3 Y N42
2021-07-24 19:07:53 C 20 24 15.70 +29 33 00.2 Y N42
2021-07-24 19:10:11 C 20 24 15.46 +29 33 00.4 Y N42
2021-07-24 19:12:28 C 20 24 15.14 +29 33 00.3 Y N42
2021-07-24 19:13:59 S 20 23 54.187 +29 35 11.94 V C57
2021-07-24 19:13:59 s 1 +155975.52 0 +42098.284 3180.0 C57
2021-07-24 19:14:45 C 20 24 14.92 +29 33 00.5 Y N42
2021-07-24 19:17:03 C 20 24 14.67 +29 33 00.9 Y N42
2021-07-24 19:19:20 C 20 24 14.35 +29 33 00.7 Y N42
2021-07-24 19:21:38 C 20 24 14.10 +29 33 00.8 Y N42
2021-07-24 19:23:55 C 20 24 13.74 +29 32 59.7 Y N42
2021-07-24 19:26:12 C 20 24 13.57 +29 32 59.7 Y N42
2021-07-24 19:28:30 C 20 24 13.27 +29 33 01.2 Y N42
2021-07-24 19:30:47 C 20 24 13.00 +29 33 01.4 Y N42
2021-07-24 19:33:04 C 20 24 12.72 +29 33 01.5 Y N42
2021-07-24 19:35:22 C 20 24 12.46 +29 33 01.4 Y N42
2021-07-24 19:37:39 C 20 24 12.20 +29 33 01.7 Y N42
2021-07-24 19:39:57 C 20 24 11.93 +29 33 01.6 Y N42
2021-07-24 19:42:14 C 20 24 11.61 +29 33 01.5 Y N42
2021-07-24 19:44:31 C 20 24 11.38 +29 33 01.6 Y N42
2021-07-24 19:46:49 C 20 24 11.10 +29 33 02.1 Y N42
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)