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
2024-06-27 09:34:53 C 11 50 56.468 -29 04 47.46 V Q62
2024-06-27 09:35:30 C 11 50 58.570 -29 04 37.93 V Q62
2024-06-27 09:36:07 C 11 51 00.640 -29 04 28.21 V Q62
2024-06-27 23:38:39 B 12 37 43.639 -24 52 54.42 Z Y01
2024-06-27 23:41:32 B 12 37 52.801 -24 51 56.22 Z Y01
2024-06-27 23:44:25 B 12 38 01.921 -24 50 57.99 Z Y01
2024-06-27 23:44:50 B 12 38 03.204 -24 50 48.60 Z Y05
2024-06-27 23:47:07 B 12 38 10.434 -24 50 02.49 Z Y05
2024-06-27 23:49:25 B 12 38 17.684 -24 49 15.79 Z Y05
2024-06-28 00:26:54 C 12 40 22.046 -24 36 18.65 V W68
2024-06-28 00:31:38 C 12 40 36.943 -24 34 42.53 V W68
2024-06-28 00:46:16 C 12 41 23.030 -24 29 44.66 V W68
2024-06-28 00:58:34 C 12 42 01.721 -24 25 33.38 V W68
2024-06-28 01:06:42 B 12 42 24.38 -24 24 07.0 q X33
2024-06-28 01:10:46 B 12 42 36.93 -24 22 44.5 q X33
2024-06-28 01:13:03 B 12 42 43.99 -24 21 58.6 q X33
2024-06-28 01:35:15 V 12 43 58.56 -24 16 21.8 V 270
2024-06-28 01:35:15 v 1 282.91689 +39.01743 270
2024-06-28 01:43:28 V 12 44 24.27 -24 13 34.4 V 270
2024-06-28 01:43:28 v 1 282.91689 +39.01743 270
2024-06-28 01:51:24 V 12 44 49.15 -24 10 49.3 V 270
2024-06-28 01:51:24 v 1 282.91689 +39.01743 270
2024-06-28 01:59:33 V 12 45 14.52 -24 08 05.2 V 270
2024-06-28 01:59:33 v 1 282.91689 +39.01743 270
2024-06-28 11:29:31 C 13 14 11.81 -20 43 15.2 X P14
2024-06-28 11:40:03 C 13 14 41.81 -20 39 26.2 X P14
2024-06-28 11:50:26 C 13 15 11.36 -20 35 40.1 X P14
2024-06-28 19:09:01 B 13 35 27.370 -17 59 45.31 V A92
2024-06-28 19:16:37 B 13 35 47.165 -17 56 57.59 V A92
2024-06-28 19:32:53 B 13 36 29.882 -17 51 02.16 V A92
2024-06-28 20:31:43 B 13 39 03.406 -17 29 33.19 V L92
2024-06-28 20:32:07 B 13 39 04.421 -17 29 24.56 V L92
2024-06-28 20:32:37 B 13 39 05.762 -17 29 13.58 V L92
2024-06-28 20:33:08 B 13 39 07.065 -17 29 02.90 V L92
2024-06-28 20:33:38 B 13 39 08.360 -17 28 51.29 V L92
2024-06-28 20:34:09 B 13 39 09.691 -17 28 39.97 V L92
2024-06-28 20:34:39 B 13 39 10.946 -17 28 29.11 V L92
2024-06-28 20:35:10 B 13 39 12.289 -17 28 18.27 V L92
2024-06-28 20:35:40 B 13 39 13.619 -17 28 07.00 V L92
2024-06-28 20:36:11 B 13 39 14.896 -17 27 55.91 V L92
2024-06-28 20:36:41 B 13 39 16.205 -17 27 44.87 V L92
2024-06-28 20:37:12 B 13 39 17.502 -17 27 34.15 V L92
2024-06-28 20:37:42 B 13 39 18.804 -17 27 22.73 V L92
2024-06-28 20:38:13 B 13 39 20.149 -17 27 11.38 V L92
2024-06-28 20:38:43 B 13 39 21.418 -17 27 00.63 V L92
2024-06-28 20:39:13 B 13 39 22.757 -17 26 49.26 V L92
2024-06-28 20:39:44 B 13 39 24.030 -17 26 38.67 V L92
2024-06-28 20:40:14 B 13 39 25.358 -17 26 27.62 V L92
2024-06-28 20:40:45 B 13 39 26.632 -17 26 16.99 V L92
2024-06-28 20:41:15 B 13 39 27.988 -17 26 05.48 V L92
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)