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
2024-06-29 11:53:55 v 1 140.17437 +36.06242 270
2024-06-29 12:02:43 C 14 15 45.98 -12 05 44.0 q D95
2024-06-29 12:03:06 C 14 15 46.79 -12 05 36.4 q D95
2024-06-29 12:04:00 C 14 15 48.65 -12 05 18.6 q D95
2024-06-29 12:06:09 C 14 15 53.15 -12 04 36.0 q D95
2024-06-29 12:06:33 C 14 15 53.96 -12 04 28.3 q D95
2024-06-29 12:07:13 V 14 15 55.31 -12 04 09.0 V 270
2024-06-29 12:07:13 v 1 140.17437 +36.06242 270
2024-06-29 12:20:23 V 14 16 22.73 -11 59 49.2 V 270
2024-06-29 12:20:23 v 1 140.17437 +36.06242 270
2024-06-29 17:50:45 C 14 27 31.37 -10 14 20.6 X N42
2024-06-29 17:55:58 C 14 27 41.42 -10 12 42.9 X N42
2024-06-29 18:01:07 C 14 27 51.29 -10 11 06.8 X N42
2024-06-29 18:07:55 C 14 28 09.04 -10 09 10.1 V C40
2024-06-29 18:09:29 C 14 28 12.01 -10 08 41.0 V C40
2024-06-29 18:11:02 C 14 28 15.00 -10 08 12.0 V C40
2024-06-29 18:12:35 C 14 28 17.95 -10 07 43.1 V C40
2024-06-29 18:14:08 C 14 28 20.88 -10 07 14.3 V C40
2024-06-29 18:15:40 C 14 28 23.83 -10 06 45.6 V C40
2024-06-29 18:17:14 C 14 28 26.77 -10 06 16.9 V C40
2024-06-29 18:18:48 C 14 28 29.75 -10 05 47.7 V C40
2024-06-29 18:20:20 C 14 28 32.69 -10 05 19.1 V C40
2024-06-29 18:21:54 C 14 28 35.64 -10 04 50.1 V C40
2024-06-29 18:23:26 C 14 28 38.57 -10 04 21.5 V C40
2024-06-29 18:30:56 C 14 28 52.82 -10 02 02.2 V C40
2024-06-29 18:32:30 C 14 28 55.77 -10 01 33.2 V C40
2024-06-29 18:34:03 C 14 28 58.73 -10 01 04.4 V C40
2024-06-29 18:35:35 C 14 29 01.65 -10 00 35.6 V C40
2024-06-29 18:37:09 C 14 29 04.59 -10 00 06.9 V C40
2024-06-29 18:38:42 C 14 29 07.52 -09 59 38.2 V C40
2024-06-29 18:40:15 C 14 29 10.48 -09 59 09.2 V C40
2024-06-29 18:41:48 C 14 29 13.40 -09 58 40.6 V C40
2024-06-29 18:43:20 C 14 29 16.32 -09 58 12.1 V C40
2024-06-29 18:44:53 C 14 29 19.23 -09 57 43.6 V C40
2024-06-29 18:46:26 C 14 29 22.16 -09 57 14.9 V C40
2024-06-29 18:47:58 C 14 29 25.08 -09 56 46.3 V C40
2024-06-29 19:08:42 B 14 30 05.906 -09 50 23.28 V A92
2024-06-29 19:30:04 B 14 30 45.910 -09 43 50.77 V A92
2024-06-29 19:35:57 C 14 30 58.39 -09 41 56.9 V C82
2024-06-29 19:36:21 C 14 30 58.12 -09 41 58.0 V L54
2024-06-29 19:39:00 C 14 31 04.06 -09 41 01.4 V C82
2024-06-29 19:39:14 C 14 31 04.49 -09 40 56.8 V C82
2024-06-29 19:41:53 C 14 31 09.45 -09 40 08.3 V C82
2024-06-29 19:44:52 C 14 31 14.97 -09 39 13.7 V C82
2024-06-29 19:47:51 C 14 31 20.51 -09 38 19.4 V C82
2024-06-29 19:49:03 C 14 31 22.76 -09 37 57.2 V C82
2024-06-29 19:49:04 B 14 31 21.370 -09 38 01.97 V A92
2024-06-29 19:50:55 C 14 31 26.19 -09 37 23.3 V C82
2024-06-29 19:53:10 C 14 31 29.43 -09 36 50.1 V L54
2024-06-29 19:54:06 C 14 31 32.08 -09 36 25.3 V C82
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)