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
2024-07-01 14:26:30 C 15 31 25.93 +00 26 58.5 u 323
2024-07-01 14:42:19 C 15 31 41.68 +00 29 43.4 u 323
2024-07-01 14:43:01 C 15 31 42.41 +00 29 50.0 u 323
2024-07-01 19:35:23 C 15 36 32.72 +01 16 22.6 V C40
2024-07-01 19:38:11 C 15 36 35.34 +01 16 49.8 V C40
2024-07-01 19:41:00 C 15 36 37.96 +01 17 17.1 V C40
2024-07-01 19:43:47 C 15 36 40.56 +01 17 44.2 V C40
2024-07-01 19:46:35 C 15 36 43.18 +01 18 11.3 V C40
2024-07-01 19:49:22 C 15 36 45.79 +01 18 38.5 V C40
2024-07-01 19:52:11 C 15 36 48.40 +01 19 05.5 V C40
2024-07-01 19:54:58 C 15 36 51.00 +01 19 32.2 V C40
2024-07-01 19:57:46 C 15 36 53.60 +01 19 59.3 V C40
2024-07-01 20:00:34 C 15 36 56.22 +01 20 26.5 V C40
2024-07-01 20:01:57 C 15 36 59.074 +01 23 06.65 V M22
2024-07-01 20:03:22 C 15 36 58.83 +01 20 53.6 V C40
2024-07-01 20:05:58 C 15 37 02.794 +01 23 45.49 V M22
2024-07-01 20:06:10 C 15 37 01.43 +01 21 20.7 V C40
2024-07-01 20:13:26 C 15 37 09.677 +01 24 57.49 V M22
2024-07-01 20:14:48 C 15 37 10.942 +01 25 10.49 V M22
2024-07-01 20:18:53 C 15 37 14.702 +01 25 49.69 V M22
2024-07-01 20:20:36 B 15 37 16.915 +01 23 49.89 V L92
2024-07-01 20:21:20 B 15 37 17.583 +01 23 57.56 V L92
2024-07-01 20:22:15 B 15 37 18.429 +01 24 05.85 V L92
2024-07-01 20:33:07 C 15 37 27.799 +01 28 06.31 V M22
2024-07-01 20:40:30 C 15 37 34.572 +01 29 17.27 V M22
2024-07-01 21:06:02 C 15 37 59.899 +01 30 46.94 Z C23
2024-07-01 21:08:29 C 15 38 02.148 +01 31 10.24 Z C23
2024-07-01 21:21:04 C 15 38 13.680 +01 33 10.55 Z C23
2024-07-01 21:28:47 C 15 38 20.748 +01 34 22.69 Z C23
2024-07-01 21:29:46 C 15 38 21.646 +01 34 32.63 Z C23
2024-07-01 22:16:43 V 15 39 04.20 +01 42 01.1 V 270
2024-07-01 22:16:43 v 1 004.83130 +47.04030 270
2024-07-01 22:29:53 V 15 39 16.03 +01 44 03.7 V 270
2024-07-01 22:29:53 v 1 004.83130 +47.04030 270
2024-07-01 22:43:03 V 15 39 27.90 +01 46 06.5 V 270
2024-07-01 22:43:03 v 1 004.83130 +47.04030 270
2024-07-01 22:56:13 V 15 39 39.69 +01 48 07.9 V 270
2024-07-01 22:56:13 v 1 004.83130 +47.04030 270
2024-07-02 02:16:04 V 15 42 41.60 +02 18 34.3 V 270
2024-07-02 02:16:04 v 1 286.31379 +40.72240 270
2024-07-02 02:29:11 V 15 42 52.79 +02 20 30.2 V 270
2024-07-02 02:29:11 v 1 286.31379 +40.72240 270
2024-07-02 02:50:03 V 15 43 10.44 +02 23 33.9 V 270
2024-07-02 02:50:03 v 1 285.03192 +40.20012 270
2024-07-02 02:55:09 V 15 43 14.82 +02 24 19.7 V 270
2024-07-02 02:55:09 v 1 286.31379 +40.72240 270
2024-07-02 03:08:11 V 15 43 25.84 +02 26 14.0 V 270
2024-07-02 03:08:11 v 1 286.31379 +40.72240 270
2024-07-02 03:19:44 V 15 43 35.74 +02 27 56.3 V 270
2024-07-02 03:19:44 v 1 285.03192 +40.20012 270
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)