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
2024-06-30 05:03:47 V 14 47 40.76 -06 57 17.1 V 270
2024-06-30 05:03:47 v 1 262.17106 +30.43764 270
2024-06-30 05:15:42 V 14 48 00.10 -06 53 58.5 V 270
2024-06-30 05:15:42 v 1 262.17106 +30.43764 270
2024-06-30 05:22:07 C 14 48 13.483 -06 52 32.06 V U68
2024-06-30 05:27:46 C 14 48 22.583 -06 50 59.37 V U68
2024-06-30 05:31:51 V 14 48 26.17 -06 49 34.6 V 270
2024-06-30 05:31:51 v 1 262.17106 +30.43764 270
2024-06-30 05:52:39 C 14 49 02.493 -06 44 14.66 V U68
2024-06-30 05:58:18 C 14 49 11.528 -06 42 42.47 V U68
2024-06-30 19:27:18 C 15 09 08.72 -03 22 22.4 V C40
2024-06-30 19:30:06 C 15 09 12.39 -03 21 44.4 V C40
2024-06-30 19:32:53 C 15 09 16.04 -03 21 06.4 V C40
2024-06-30 19:35:41 C 15 09 19.71 -03 20 28.4 V C40
2024-06-30 19:38:28 C 15 09 23.37 -03 19 50.5 V C40
2024-06-30 19:41:16 C 15 09 27.01 -03 19 12.8 V C40
2024-06-30 19:44:04 C 15 09 30.69 -03 18 34.6 V C40
2024-06-30 19:46:51 C 15 09 34.33 -03 17 57.0 V C40
2024-06-30 19:49:39 C 15 09 37.98 -03 17 19.1 V C40
2024-06-30 19:52:27 C 15 09 41.63 -03 16 41.3 V C40
2024-06-30 19:55:14 C 15 09 45.28 -03 16 03.7 V C40
2024-06-30 19:58:02 C 15 09 48.94 -03 15 25.9 V C40
2024-06-30 19:59:23 C 15 09 53.614 -03 15 06.34 V B38
2024-06-30 20:03:44 C 15 09 59.230 -03 14 08.27 V B38
2024-06-30 20:06:08 C 15 10 02.366 -03 13 35.80 V B38
2024-06-30 20:09:17 C 15 10 06.490 -03 12 53.21 V B38
2024-06-30 20:10:14 C 15 10 06.64 -03 12 42.1 V L54
2024-06-30 20:15:48 C 15 10 14.906 -03 11 26.02 V B38
2024-06-30 20:18:23 C 15 10 18.238 -03 10 50.95 V B38
2024-06-30 20:22:45 C 15 10 24.03 -03 09 52.8 q 104
2024-06-30 20:25:09 C 15 10 27.13 -03 09 20.7 q 104
2024-06-30 20:27:22 C 15 10 29.98 -03 08 50.9 q 104
2024-06-30 20:32:22 C 15 10 35.21 -03 07 45.8 V L54
2024-06-30 20:42:08 C 15 10 47.772 -03 05 25.51 V L02
2024-06-30 20:42:47 C 15 10 48.64 -03 05 26.6 V L54
2024-06-30 20:49:51 C 15 10 57.679 -03 03 42.26 V L02
2024-06-30 20:53:29 C 15 11 02.43 -03 03 03.8 V L54
2024-06-30 20:57:34 C 15 11 07.572 -03 01 59.48 V L02
2024-06-30 21:03:55 C 15 11 16.01 -03 00 49.3 M32
2024-06-30 21:03:58 C 15 11 15.90 -03 00 44.5 V L54
2024-06-30 21:04:45 C 15 11 17.08 -03 00 38.3 M32
2024-06-30 21:05:14 C 15 11 18.66 -03 00 25.9 U 104
2024-06-30 21:05:36 C 15 11 18.15 -03 00 27.5 M32
2024-06-30 21:06:20 C 15 11 19.09 -03 00 17.7 M32
2024-06-30 21:06:58 C 15 11 19.89 -03 00 09.1 M32
2024-06-30 21:11:18 C 15 11 26.46 -02 59 07.2 q A48
2024-06-30 21:11:59 C 15 11 27.34 -02 58 58.1 q A48
2024-06-30 21:12:45 C 15 11 28.34 -02 58 47.9 q A48
2024-06-30 21:13:31 C 15 11 29.31 -02 58 37.7 q A48
2024-06-30 21:14:03 C 15 11 29.94 -02 58 28.7 U 104
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)