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
2024-08-01 22:24:35 B 17 37 44.343 +15 41 02.43 V L92
2024-08-02 08:24:02 C 17 38 12.262 +15 39 28.48 V T08
2024-08-02 08:28:11 C 17 38 12.434 +15 39 27.86 V T08
2024-08-02 08:35:48 C 17 38 12.742 +15 39 26.39 V T08
2024-08-02 08:50:52 C 17 38 13.373 +15 39 23.72 V T08
2024-08-02 18:11:11 C 17 38 39.57 +15 37 41.2 V C40
2024-08-02 18:12:41 C 17 38 39.63 +15 37 40.7 V C40
2024-08-02 18:14:10 C 17 38 39.70 +15 37 40.5 V C40
2024-08-02 18:15:39 C 17 38 39.75 +15 37 40.3 V C40
2024-08-02 18:17:09 C 17 38 39.82 +15 37 39.8 V C40
2024-08-02 18:18:38 C 17 38 39.88 +15 37 39.7 V C40
2024-08-02 18:28:56 C 17 38 40.33 +15 37 38.1 V C40
2024-08-02 19:09:52 C 17 38 42.05 +15 37 30.4 V C40
2024-08-02 19:12:39 C 17 38 42.18 +15 37 30.1 V C40
2024-08-02 19:15:27 C 17 38 42.30 +15 37 29.5 V C40
2024-08-02 19:18:14 C 17 38 42.41 +15 37 28.9 V C40
2024-08-02 19:21:02 C 17 38 42.53 +15 37 28.6 V C40
2024-08-02 19:23:50 C 17 38 42.65 +15 37 28.0 V C40
2024-08-02 19:26:36 C 17 38 42.78 +15 37 27.5 V C40
2024-08-02 19:29:24 C 17 38 42.90 +15 37 27.1 V C40
2024-08-02 19:32:12 C 17 38 43.01 +15 37 26.5 V C40
2024-08-02 19:34:59 C 17 38 43.13 +15 37 26.2 V C40
2024-08-02 19:37:48 C 17 38 43.25 +15 37 25.5 V C40
2024-08-02 19:40:35 C 17 38 43.37 +15 37 24.8 V C40
2024-08-02 20:34:28 C 17 38 45.703 +15 37 18.32 i M72
2024-08-02 20:51:29 C 17 38 46.402 +15 37 15.06 i M72
2024-08-02 21:09:18 C 17 38 47.606 +15 37 08.26 Z C23
2024-08-02 21:13:30 C 17 38 47.334 +15 37 11.13 i M72
2024-08-02 21:46:34 C 17 38 49.142 +15 37 01.67 Z C23
2024-08-03 08:11:30 C 17 39 17.750 +15 35 17.52 V T05
2024-08-03 08:16:04 C 17 39 17.928 +15 35 16.84 V T05
2024-08-03 08:24:01 C 17 39 18.264 +15 35 15.29 V T05
2024-08-03 08:41:29 C 17 39 18.998 +15 35 12.01 V T05
2024-08-04 08:19:52 C 17 40 23.563 +15 30 46.76 V T05
2024-08-04 08:22:41 C 17 40 23.676 +15 30 46.55 V T08
2024-08-04 08:25:06 C 17 40 23.784 +15 30 45.72 V T05
2024-08-04 08:26:46 C 17 40 23.837 +15 30 45.76 V T08
2024-08-04 08:34:14 C 17 40 24.161 +15 30 43.92 V T05
2024-08-04 08:35:31 C 17 40 24.211 +15 30 43.99 V T08
2024-08-04 09:06:36 C 17 40 25.498 +15 30 37.33 V T05
2024-08-04 09:07:21 C 17 40 25.526 +15 30 37.69 V T08
2024-08-04 18:05:49 C 17 40 50.39 +15 28 47.0 V C40
2024-08-04 18:08:36 C 17 40 50.50 +15 28 46.4 V C40
2024-08-04 18:11:24 C 17 40 50.63 +15 28 45.8 V C40
2024-08-04 18:14:11 C 17 40 50.75 +15 28 45.1 V C40
2024-08-04 18:16:59 C 17 40 50.86 +15 28 44.8 V C40
2024-08-04 18:19:47 C 17 40 51.00 +15 28 44.2 V C40
2024-08-04 18:22:44 C 17 40 51.10 +15 28 43.5 V C40
2024-08-04 18:25:39 C 17 40 51.24 +15 28 42.7 V C40
2024-08-04 18:28:27 C 17 40 51.36 +15 28 42.7 V C40
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)