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
2024-07-08 23:51:38 v 1 011.16233 +45.34060 270
2024-07-09 00:02:06 C 16 51 40.41 +13 03 08.0 Y 557
2024-07-09 00:04:08 V 16 51 40.80 +13 03 14.5 V 270
2024-07-09 00:04:08 v 1 011.16233 +45.34060 270
2024-07-09 01:00:25 C 16 51 51.46 +13 04 35.4 Y 557
2024-07-09 05:09:45 V 16 52 40.65 +13 11 06.7 V 270
2024-07-09 05:09:45 v 1 262.17106 +30.43763 270
2024-07-09 05:14:15 V 16 52 41.37 +13 11 13.0 V 270
2024-07-09 05:14:15 v 1 262.17106 +30.43763 270
2024-07-09 05:18:37 V 16 52 42.24 +13 11 19.3 V 270
2024-07-09 05:18:37 v 1 262.17106 +30.43763 270
2024-07-09 05:23:07 V 16 52 42.92 +13 11 23.7 V 270
2024-07-09 05:23:07 v 1 262.17106 +30.43763 270
2024-07-09 08:34:15 C 16 53 19.270 +13 16 11.21 V T08
2024-07-09 08:50:56 C 16 53 22.135 +13 16 34.82 V T08
2024-07-09 08:55:06 C 16 53 22.850 +13 16 40.69 V T08
2024-07-09 09:02:32 C 16 53 24.125 +13 16 51.20 V T08
2024-07-09 10:38:24 V 16 53 43.28 +13 19 47.2 V 270
2024-07-09 10:38:24 v 1 151.66013 -32.96849 270
2024-07-09 10:51:06 V 16 53 45.44 +13 20 04.9 V 270
2024-07-09 10:51:06 v 1 151.66013 -32.96849 270
2024-07-09 11:03:49 V 16 53 47.60 +13 20 22.7 V 270
2024-07-09 11:03:49 v 1 151.66013 -32.96849 270
2024-07-09 11:16:19 V 16 53 49.74 +13 20 40.1 V 270
2024-07-09 11:16:19 v 1 151.66013 -32.96849 270
2024-07-09 11:26:37 V 16 53 50.43 +13 20 57.8 V 270
2024-07-09 11:26:37 v 1 175.46547 -37.91891 270
2024-07-09 11:39:20 V 16 53 52.61 +13 21 15.1 V 270
2024-07-09 11:39:20 v 1 175.46547 -37.91891 270
2024-07-09 11:52:03 V 16 53 54.80 +13 21 32.2 V 270
2024-07-09 11:52:03 v 1 175.46547 -37.91891 270
2024-07-09 12:04:33 V 16 53 56.93 +13 21 49.2 V 270
2024-07-09 12:04:33 v 1 175.46547 -37.91891 270
2024-07-09 19:55:37 C 16 55 22.18 +13 31 15.3 X G02
2024-07-09 20:00:09 C 16 55 22.92 +13 31 21.2 X G02
2024-07-09 20:04:28 C 16 55 23.63 +13 31 26.9 X G02
2024-07-09 20:13:51 B 16 55 24.857 +13 31 41.16 X M35
2024-07-09 20:33:20 C 16 55 28.51 +13 32 03.8 Y 557
2024-07-09 20:47:37 V 16 55 30.95 +13 32 25.7 V 270
2024-07-09 20:47:37 v 1 011.33312 +44.47804 270
2024-07-09 21:00:19 V 16 55 33.03 +13 32 42.3 V 270
2024-07-09 21:00:19 v 1 011.33312 +44.47804 270
2024-07-09 21:13:02 V 16 55 35.08 +13 32 58.8 V 270
2024-07-09 21:13:02 v 1 011.33312 +44.47804 270
2024-07-09 21:19:29 C 16 55 36.163 +13 33 06.55 V 434
2024-07-09 21:22:18 C 16 55 36.610 +13 33 10.19 V 434
2024-07-09 21:25:05 C 16 55 37.032 +13 33 13.72 V 434
2024-07-09 21:25:32 V 16 55 37.09 +13 33 14.6 V 270
2024-07-09 21:25:32 v 1 011.33312 +44.47804 270
2024-07-09 21:29:17 C 16 55 37.64 +13 33 15.7 Y 557
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)