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
2023-09-21 11:16:47 C 05 38 05.802 +46 52 01.49 V G96
2023-09-21 11:24:47 C 05 38 06.083 +46 52 02.39 V G96
2023-10-14 11:46:46 C 05 52 43.388 +48 23 15.43 V G96
2023-10-14 11:55:47 C 05 52 43.475 +48 23 16.80 V G96
2023-10-14 12:04:51 C 05 52 43.547 +48 23 18.46 V G96
2023-10-14 12:13:37 C 05 52 43.648 +48 23 19.93 V G96
2023-10-23 12:07:35 C 05 53 11.802 +48 58 30.43 X F52
2023-10-23 12:19:37 C 05 53 11.698 +48 58 32.42 X F52
2023-10-23 12:31:48 C 05 53 11.594 +48 58 34.44 X F52
2023-10-23 12:43:53 C 05 53 11.488 +48 58 36.41 X F52
2023-11-05 12:42:09 C 05 46 23.352 +49 40 07.62 X F52
2023-11-05 12:56:13 C 05 46 22.780 +49 40 09.04 X F52
2023-11-05 13:10:13 C 05 46 22.196 +49 40 10.37 X F52
2023-11-05 13:24:14 C 05 46 21.629 +49 40 11.69 X F52
2023-11-13 07:57:01 C 05 37 10.232 +49 51 41.29 V G96
2023-11-13 08:04:39 C 05 37 09.743 +49 51 41.44 V G96
2023-11-13 08:12:15 C 05 37 09.271 +49 51 41.69 V G96
2023-11-15 09:57:41 C 05 33 59.209 +49 51 51.62 V V00
2023-11-15 10:04:42 C 05 33 58.716 +49 51 51.59 V V00
2023-11-15 10:11:45 C 05 33 58.237 +49 51 51.44 V V00
2023-11-15 10:18:48 C 05 33 57.748 +49 51 51.41 V V00
2023-11-22 11:01:36 C 05 21 01.234 +49 39 30.92 V T05
2023-11-22 11:02:54 C 05 21 01.152 +49 39 30.64 V T05
2023-11-22 11:07:27 C 05 21 00.710 +49 39 30.20 V T05
2023-11-22 11:10:44 C 05 21 00.509 +49 39 29.41 V T05
2023-11-22 11:12:03 C 05 21 00.293 +49 39 28.84 V T05
2023-12-08 11:00:02 C 04 41 14.909 +47 21 52.06 V T05
2023-12-08 11:05:57 C 04 41 14.431 +47 21 50.22 V T05
2023-12-08 11:17:53 C 04 41 12.787 +47 21 41.72 V T05
2023-12-08 12:06:51 C 04 41 07.010 +47 21 10.58 V T05
2023-12-11 10:19:57 C 04 33 01.651 +46 34 49.26 V T08
2023-12-11 10:24:58 C 04 33 01.066 +46 34 45.30 V T08
2023-12-11 10:38:04 C 04 32 59.477 +46 34 36.30 V T08
2023-12-11 10:57:01 C 04 32 57.230 +46 34 22.33 V T08
2023-12-13 09:59:37 C 04 27 32.302 +45 59 18.49 V T08
2023-12-13 10:01:52 C 04 27 32.050 +45 59 16.58 V T08
2023-12-13 10:29:45 C 04 27 28.738 +45 58 54.88 V T08
2023-12-13 10:33:27 C 04 27 28.318 +45 58 51.85 V T08
2023-12-13 10:37:34 C 04 27 27.811 +45 58 48.47 V T08
2023-12-13 10:38:14 C 04 27 27.732 +45 58 48.04 V T08
2023-12-13 10:45:49 C 04 27 26.839 +45 58 41.92 V T08
2023-12-17 09:37:23 C 04 16 42.274 +44 38 27.06 V T05
2023-12-17 09:41:58 C 04 16 41.700 +44 38 23.42 V T05
2023-12-17 09:49:49 C 04 16 40.860 +44 38 15.54 V T05
2023-12-17 10:04:11 C 04 16 39.175 +44 38 02.40 V T05
2023-12-28 10:30:00 C 03 49 54.151 +39 56 48.44 V T05
2023-12-28 10:34:33 C 03 49 53.695 +39 56 43.40 V T05
2023-12-28 10:42:23 C 03 49 53.028 +39 56 33.43 V T05
2023-12-28 11:04:25 C 03 49 50.938 +39 56 07.01 V T05
2023-12-29 09:15:12 C 03 47 55.238 +39 29 33.14 V T05
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)