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
2024-07-29 08:56:51 C 17 33 41.676 +15 52 57.30 X F51
2024-07-29 09:13:33 C 17 33 42.411 +15 52 55.32 X F51
2024-07-29 09:30:21 C 17 33 43.155 +15 52 53.19 X F51
2024-07-29 09:33:57 C 17 33 43.298 +15 52 53.26 V T08
2024-07-29 19:28:26 C 17 34 12.53 +15 51 38.8 V C40
2024-07-29 19:31:15 C 17 34 12.66 +15 51 38.3 V C40
2024-07-29 19:34:02 C 17 34 12.78 +15 51 38.0 V C40
2024-07-29 19:36:50 C 17 34 12.91 +15 51 37.6 V C40
2024-07-29 19:39:38 C 17 34 13.04 +15 51 37.4 V C40
2024-07-29 19:42:25 C 17 34 13.16 +15 51 37.0 V C40
2024-07-29 19:45:14 C 17 34 13.28 +15 51 36.5 V C40
2024-07-29 19:48:01 C 17 34 13.41 +15 51 36.3 V C40
2024-07-29 19:50:49 C 17 34 13.53 +15 51 36.0 V C40
2024-07-29 19:53:37 C 17 34 13.66 +15 51 35.5 V C40
2024-07-29 19:56:24 C 17 34 13.79 +15 51 35.3 V C40
2024-07-29 19:59:12 C 17 34 13.90 +15 51 34.9 V C40
2024-07-29 20:31:37 B 17 34 15.714 +15 51 33.02 V L92
2024-07-29 20:36:43 B 17 34 15.941 +15 51 32.18 V L92
2024-07-29 20:41:49 B 17 34 16.165 +15 51 32.01 V L92
2024-07-29 20:46:54 B 17 34 16.398 +15 51 31.38 V L92
2024-07-29 20:51:59 B 17 34 16.612 +15 51 30.24 V L92
2024-07-29 20:57:05 B 17 34 16.820 +15 51 30.34 V L92
2024-07-29 21:02:10 B 17 34 17.054 +15 51 28.67 V L92
2024-07-29 21:07:16 B 17 34 17.219 +15 51 28.81 V L92
2024-07-29 21:11:37 C 17 34 17.654 +15 51 24.95 Z C23
2024-07-29 21:29:39 B 17 34 18.43 +15 51 22.2 q M07
2024-07-29 21:42:56 C 17 34 19.06 +15 51 22.9 W D51
2024-07-29 21:45:58 C 17 34 19.20 +15 51 22.4 W D51
2024-07-29 21:49:01 C 17 34 19.34 +15 51 22.2 W D51
2024-07-29 22:08:19 C 17 34 20.246 +15 51 18.32 Z C23
2024-07-29 22:29:55 B 17 34 21.14 +15 51 15.0 q M07
2024-07-30 08:24:42 C 17 34 49.819 +15 50 11.33 V T05
2024-07-30 08:30:14 C 17 34 50.054 +15 50 10.46 V T05
2024-07-30 08:37:38 C 17 34 50.371 +15 50 09.56 V T05
2024-07-30 08:52:04 C 17 34 50.993 +15 50 07.66 V T05
2024-07-30 21:15:04 C 17 35 26.669 +15 48 22.28 Z C23
2024-07-30 22:18:20 C 17 35 29.518 +15 48 13.14 Z C23
2024-07-31 18:54:13 B 17 36 28.16 +15 45 19.5 Z M45
2024-07-31 18:56:45 C 17 36 28.08 +15 45 19.4 V C40
2024-07-31 18:57:03 B 17 36 28.28 +15 45 19.1 Z M45
2024-07-31 18:59:51 B 17 36 28.41 +15 45 18.7 Z M45
2024-07-31 19:01:02 C 17 36 28.27 +15 45 18.7 V C40
2024-07-31 19:05:18 C 17 36 28.47 +15 45 18.1 V C40
2024-07-31 19:32:41 C 17 36 29.64 +15 45 13.9 V C40
2024-07-31 19:35:30 C 17 36 29.77 +15 45 13.4 V C40
2024-07-31 19:35:34 C 17 36 29.817 +15 45 16.85 i M72
2024-07-31 19:38:16 C 17 36 29.89 +15 45 13.0 V C40
2024-07-31 19:41:04 C 17 36 30.00 +15 45 12.6 V C40
2024-07-31 19:43:52 C 17 36 30.13 +15 45 12.2 V C40
2024-07-31 19:45:37 C 17 36 30.47 +15 45 11.3 X G02
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)