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
2020-12-08 06:03:12 C 06 23 08.07 +40 01 08.3 V 703
2020-12-08 06:11:07 C 06 23 07.21 +40 01 03.8 V 703
2020-12-08 06:26:56 C 06 23 05.49 +40 00 57.1 V 703
2020-12-08 09:42:41 C 06 22 45.35 +39 59 05.4 V V00
2020-12-08 09:49:42 C 06 22 44.62 +39 59 01.3 V V00
2020-12-08 09:56:43 C 06 22 43.89 +39 58 57.3 V V00
2020-12-08 10:03:44 C 06 22 43.17 +39 58 53.2 V V00
2020-12-09 10:34:48 C 06 20 13.08 +39 44 24.3 V T05
2020-12-09 10:39:28 C 06 20 12.58 +39 44 21.4 V T05
2020-12-09 10:50:01 C 06 20 11.41 +39 44 15.0 V T05
2020-12-09 11:14:34 C 06 20 08.76 +39 44 00.0 V T05
2020-12-11 11:47:28 C 06 14 53.29 +39 12 11.9 V T08
2020-12-11 11:51:27 C 06 14 52.84 +39 12 09.1 V T08
2020-12-11 11:59:26 C 06 14 51.90 +39 12 03.5 V T08
2020-12-11 12:14:04 C 06 14 50.20 +39 11 53.2 V T08
2020-12-12 11:14:59 C 06 12 13.27 +38 55 18.3 V T05
2020-12-12 11:19:20 C 06 12 12.76 +38 55 14.8 V T05
2020-12-12 11:24:32 C 06 12 12.13 +38 55 11.0 V T05
2020-12-12 11:28:01 C 06 12 11.71 +38 55 08.7 V T05
2020-12-12 11:28:41 C 06 12 11.63 +38 55 08.0 V T05
2020-12-12 11:43:11 C 06 12 09.89 +38 54 57.2 V T05
2020-12-12 11:44:30 C 06 12 09.75 +38 54 56.4 V T05
2020-12-12 12:00:16 C 06 12 07.85 +38 54 44.6 V T05
2020-12-17 08:46:35 C 05 57 40.75 +37 13 56.5 V T05
2020-12-17 08:49:13 C 05 57 40.38 +37 13 54.0 V T05
2020-12-17 08:53:14 C 05 57 39.85 +37 13 50.1 V T05
2020-12-17 09:13:59 C 05 57 37.04 +37 13 29.7 V T05
2020-12-18 08:25:15 C 05 54 31.60 +36 49 51.7 V G96
2020-12-18 08:26:35 C 05 54 31.42 +36 49 50.4 V G96
2020-12-18 08:33:36 C 05 54 30.45 +36 49 42.9 V G96
2020-12-18 08:34:56 C 05 54 30.27 +36 49 41.6 V G96
2020-12-18 08:41:54 C 05 54 29.30 +36 49 34.2 V G96
2020-12-18 08:43:14 C 05 54 29.12 +36 49 32.8 V G96
2020-12-18 08:50:11 C 05 54 28.17 +36 49 25.1 V G96
2020-12-18 08:51:31 C 05 54 27.98 +36 49 24.1 V G96
2020-12-18 18:05:28 C 05 53 14.26 +36 39 31.1 V G33
2020-12-18 18:07:04 C 05 53 14.02 +36 39 29.4 V G33
2020-12-18 18:08:50 C 05 53 13.81 +36 39 27.7 V G33
2020-12-18 18:10:39 C 05 53 13.59 +36 39 26.1 V G33
2020-12-18 18:12:12 C 05 53 13.36 +36 39 24.0 V G33
2020-12-18 18:13:53 C 05 53 13.14 +36 39 22.6 V G33
2020-12-19 06:29:37 C 05 51 31.95 +36 26 24.0 o W92
2020-12-19 06:50:12 C 05 51 29.05 +36 26 00.6 o W92
2020-12-21 14:31:54 C 05 43 43.24 +35 20 54.1 V T05
2020-12-21 14:37:12 C 05 43 42.49 +35 20 47.3 V T05
2020-12-21 14:45:07 C 05 43 41.35 +35 20 37.4 V T05
2020-12-21 15:00:56 C 05 43 39.08 +35 20 17.3 V T05
2020-12-22 10:02:42 C 05 40 57.26 +34 56 24.3 V T08
2020-12-22 10:20:47 C 05 40 54.59 +34 56 01.1 V T08
2020-12-22 10:25:29 C 05 40 53.89 +34 55 54.9 V T08
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)