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
2024-07-31 19:46:38 C 17 36 30.25 +15 45 11.8 V C40
2024-07-31 19:49:26 C 17 36 30.38 +15 45 11.4 V C40
2024-07-31 19:51:12 C 17 36 30.74 +15 45 10.3 X G02
2024-07-31 19:52:14 C 17 36 30.50 +15 45 10.9 V C40
2024-07-31 19:55:00 C 17 36 30.62 +15 45 10.5 V C40
2024-07-31 19:56:47 C 17 36 30.99 +15 45 09.5 X G02
2024-07-31 19:56:49 C 17 36 30.713 +15 45 13.41 i M72
2024-07-31 19:57:49 C 17 36 30.74 +15 45 10.1 V C40
2024-07-31 20:00:35 C 17 36 30.87 +15 45 09.6 V C40
2024-07-31 20:03:23 C 17 36 30.99 +15 45 09.2 V C40
2024-07-31 20:18:05 C 17 36 31.608 +15 45 09.97 i M72
2024-07-31 20:51:25 B 17 36 33.373 +15 45 03.45 V L92
2024-07-31 20:54:29 B 17 36 33.498 +15 45 03.19 V L92
2024-07-31 20:57:33 B 17 36 33.633 +15 45 02.73 V L92
2024-07-31 21:00:36 B 17 36 33.773 +15 45 02.43 V L92
2024-07-31 21:03:40 B 17 36 33.899 +15 45 02.01 V L92
2024-07-31 21:06:43 B 17 36 34.024 +15 45 01.53 V L92
2024-07-31 21:09:47 B 17 36 34.172 +15 45 00.69 V L92
2024-07-31 21:15:59 B 17 36 34.460 +15 45 00.48 V L92
2024-07-31 21:19:02 B 17 36 34.519 +15 44 58.88 V L92
2024-07-31 21:22:06 B 17 36 34.698 +15 44 58.65 V L92
2024-07-31 21:25:10 B 17 36 34.736 +15 44 58.64 V L92
2024-07-31 21:28:44 B 17 36 34.961 +15 44 57.99 V L92
2024-08-01 06:16:37 C 17 36 59.650 +15 43 38.86 Z U76
2024-08-01 06:38:26 C 17 37 00.559 +15 43 35.33 Z U76
2024-08-01 06:52:05 C 17 37 01.145 +15 43 33.10 Z U76
2024-08-01 09:02:42 C 17 37 07.243 +15 43 16.97 V T08
2024-08-01 09:12:19 C 17 37 07.651 +15 43 15.28 V T08
2024-08-01 09:16:59 C 17 37 07.846 +15 43 14.48 V T08
2024-08-01 09:52:40 C 17 37 09.367 +15 43 08.62 V T08
2024-08-01 19:28:44 C 17 37 36.53 +15 41 30.3 V C40
2024-08-01 19:32:28 C 17 37 36.69 +15 41 29.7 V C40
2024-08-01 19:36:12 C 17 37 36.86 +15 41 29.2 V C40
2024-08-01 19:39:56 C 17 37 37.02 +15 41 28.5 V C40
2024-08-01 19:41:45 C 17 37 37.35 +15 41 27.4 X G02
2024-08-01 19:43:39 C 17 37 37.17 +15 41 27.8 V C40
2024-08-01 19:47:20 C 17 37 37.60 +15 41 26.3 X G02
2024-08-01 19:47:22 C 17 37 37.34 +15 41 27.3 V C40
2024-08-01 19:51:06 C 17 37 37.50 +15 41 26.7 V C40
2024-08-01 19:52:39 C 17 37 37.85 +15 41 25.4 X G02
2024-08-01 19:54:50 C 17 37 37.66 +15 41 26.0 V C40
2024-08-01 19:58:34 C 17 37 37.82 +15 41 25.4 V C40
2024-08-01 20:02:17 C 17 37 37.98 +15 41 24.8 V C40
2024-08-01 20:06:01 C 17 37 38.14 +15 41 24.1 V C40
2024-08-01 20:09:44 C 17 37 38.30 +15 41 23.5 V C40
2024-08-01 21:34:06 B 17 37 42.191 +15 41 11.35 V L92
2024-08-01 21:44:12 B 17 37 42.561 +15 41 09.24 V L92
2024-08-01 21:54:17 B 17 37 43.031 +15 41 07.70 V L92
2024-08-01 22:04:23 B 17 37 43.364 +15 41 06.09 V L92
2024-08-01 22:14:29 B 17 37 43.904 +15 41 04.15 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)