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
2021-08-05 03:23:59 s 1 -185471.58 0 +45659.162 9460.0 C57
2021-08-05 04:23:59 S 19 57 12.744 +28 48 17.68 V C57
2021-08-05 04:23:59 s 1 -183477.33 2 +40490.782 5590.0 C57
2021-08-05 06:23:59 S 19 57 02.736 +28 47 56.29 V C57
2021-08-05 06:23:59 s 1 -179110.25 1 +30074.533 5410.0 C57
2021-08-05 08:23:59 S 19 56 53.078 +28 47 24.83 V C57
2021-08-05 08:23:59 s 1 -174205.43 5 +19569.247 9230.0 C57
2021-08-05 09:58:12 C 19 56 28.07 +28 49 32.1 V T05
2021-08-05 10:03:29 C 19 56 27.60 +28 49 30.6 V T05
2021-08-05 10:13:18 C 19 56 26.75 +28 49 27.3 V T05
2021-08-05 14:43:59 S 19 56 22.454 +28 45 43.67 V C57
2021-08-05 14:43:59 s 1 -154612.95 9 -13956.344 6910.0 C57
2021-08-05 21:04:52 C 19 55 33.63 +28 45 50.8 V L47
2021-08-05 21:13:24 C 19 55 32.72 +28 45 50.0 V L47
2021-08-08 04:53:59 S 19 50 50.926 +28 27 09.76 V C57
2021-08-08 04:53:59 s 1 +171540.77 1 +86339.967 9040.0 C57
2021-08-08 06:53:59 S 19 50 40.670 +28 26 19.32 V C57
2021-08-08 06:53:59 s 1 +173048.34 2 +97195.468 120.0 C57
2021-08-08 08:03:59 S 19 50 35.311 +28 25 45.62 V C57
2021-08-08 08:03:59 s 1 +173735.64 4 +103420.95 5900.0 C57
2021-08-08 14:13:59 S 19 50 06.619 +28 23 04.96 V C57
2021-08-08 14:13:59 s 1 +175295.38 6 +134992.70 8070.0 C57
2021-08-08 14:43:59 S 19 50 04.027 +28 22 49.91 V C57
2021-08-08 14:43:59 s 1 +175284.19 2 +137453.66 1850.0 C57
2021-08-08 15:53:59 S 19 49 59.124 +28 22 21.79 V C57
2021-08-08 15:53:59 s 1 +175185.63 9 +143138.32 7430.0 C57
2021-08-09 11:43:59 S 19 48 30.588 +28 13 24.85 V C57
2021-08-09 11:43:59 s 1 +161360.07 0 +227867.05 7370.0 C57
2021-08-25 22:25:55 C 19 30 04.34 +24 58 14.3 V 160
2021-08-25 22:29:19 C 19 30 04.20 +24 58 14.7 V 160
2021-08-25 22:32:45 C 19 30 04.07 +24 58 12.3 V 160
2021-08-28 21:10:55 C 19 28 22.80 +24 19 31.8 V 160
2021-08-28 21:14:17 C 19 28 22.89 +24 19 29.2 V 160
2021-09-04 22:51:16 C 19 26 03.52 +22 46 42.7 W 511
2021-09-04 22:54:40 C 19 26 03.52 +22 46 40.7 W 511
2021-09-04 22:58:03 C 19 26 03.53 +22 46 39.0 W 511
2021-09-04 23:01:26 C 19 26 03.48 +22 46 37.6 W 511
2021-09-04 23:04:56 C 19 26 03.46 +22 46 35.5 W 511
2021-09-04 23:08:18 C 19 26 03.43 +22 46 33.2 W 511
2021-09-04 23:11:41 C 19 26 03.38 +22 46 30.7 W 511
2021-09-04 23:15:04 C 19 26 03.36 +22 46 30.9 W 511
2021-09-04 23:18:27 C 19 26 03.35 +22 46 28.1 W 511
2021-09-05 21:37:00 C 19 25 55.29 +22 34 26.2 W 511
2021-09-05 21:43:45 C 19 25 55.25 +22 34 22.3 W 511
2021-09-05 21:49:48 C 19 25 55.20 +22 34 19.0 W 511
2021-09-05 21:55:51 C 19 25 55.16 +22 34 16.3 W 511
2021-09-05 22:01:54 C 19 25 55.12 +22 34 12.3 W 511
2021-09-05 22:07:58 C 19 25 55.08 +22 34 08.8 W 511
2023-09-21 11:00:53 C 05 38 05.212 +46 51 58.97 V G96
2023-09-21 11:08:50 C 05 38 05.492 +46 51 59.90 V G96
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)