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
2021-07-25 09:13:59 S 20 22 09.600 +29 34 55.42 V C57
2021-07-25 09:13:59 s 1 +170602.14 4 +120599.83 6110.0 C57
2021-07-25 09:23:59 S 20 22 08.482 +29 34 53.47 V C57
2021-07-25 09:23:59 s 1 +170646.84 2 +121462.56 6170.0 C57
2021-07-25 11:03:59 S 20 21 56.350 +29 34 48.79 V C57
2021-07-25 11:03:59 s 1 +170962.20 5 +129994.21 5800.0 C57
2021-07-25 11:33:59 S 20 21 52.884 +29 34 43.21 V C57
2021-07-25 11:33:59 s 1 +171011.61 7 +132519.82 8100.0 C57
2021-07-25 12:53:59 S 20 21 43.414 +29 34 48.43 V C57
2021-07-25 12:53:59 s 1 +171046.12 7 +139178.58 5180.0 C57
2021-07-25 13:03:59 S 20 21 41.784 +29 34 45.08 V C57
2021-07-25 13:03:59 s 1 +171040.75 8 +140003.15 2890.0 C57
2021-07-25 13:23:59 S 20 21 39.504 +29 34 45.84 V C57
2021-07-25 13:23:59 s 1 +171023.71 9 +141647.13 9190.0 C57
2021-07-25 13:53:59 S 20 21 35.748 +29 34 41.27 V C57
2021-07-25 13:53:59 s 1 +170982.61 7 +144100.19 6450.0 C57
2021-07-25 14:03:59 S 20 21 34.507 +29 34 39.86 V C57
2021-07-25 14:03:59 s 1 +170964.82 6 +144914.44 6450.0 C57
2021-07-25 14:23:59 S 20 21 32.338 +29 34 36.66 V C57
2021-07-25 14:23:59 s 1 +170923.18 6 +146537.79 8090.0 C57
2021-07-25 14:33:59 S 20 21 31.327 +29 34 37.81 V C57
2021-07-25 14:33:59 s 1 +170899.36 5 +147346.90 9810.0 C57
2021-07-25 14:43:59 S 20 21 30.322 +29 34 39.00 V C57
2021-07-25 14:43:59 s 1 +170873.55 9 +148154.30 5510.0 C57
2021-07-25 14:53:59 S 20 21 29.177 +29 34 43.28 V C57
2021-07-25 14:53:59 s 1 +170845.78 2 +148959.99 5240.0 C57
2021-07-25 15:03:59 S 20 21 27.770 +29 34 39.40 V C57
2021-07-25 15:03:59 s 1 +170816.04 6 +149763.97 9020.0 C57
2021-07-25 15:13:59 S 20 21 26.501 +29 34 38.68 V C57
2021-07-25 15:13:59 s 1 +170784.36 5 +150566.25 6910.0 C57
2021-07-25 15:33:59 S 20 21 24.168 +29 34 36.95 V C57
2021-07-25 15:33:59 s 1 +170715.21 4 +152165.69 5160.0 C57
2021-07-25 15:43:59 S 20 21 23.378 +29 34 34.14 V C57
2021-07-25 15:43:59 s 1 +170677.76 9 +152962.86 5590.0 C57
2021-07-25 16:03:59 S 20 21 20.563 +29 34 33.42 V C57
2021-07-25 16:03:59 s 1 +170597.20 1 +154552.10 9260.0 C57
2021-07-25 16:13:59 S 20 21 19.452 +29 34 31.87 V C57
2021-07-25 16:13:59 s 1 +170554.10 2 +155344.17 2570.0 C57
2021-07-25 16:23:59 S 20 21 18.614 +29 34 36.52 V C57
2021-07-25 16:23:59 s 1 +170509.14 2 +156134.55 250.0 C57
2021-07-25 17:43:59 S 20 21 08.750 +29 34 24.78 V C57
2021-07-25 17:43:59 s 1 +170083.86 6 +162396.83 3240.0 C57
2021-07-25 17:53:59 S 20 21 07.668 +29 34 28.02 V C57
2021-07-25 17:53:59 s 1 +170022.67 7 +163172.04 1840.0 C57
2021-07-25 18:03:59 S 20 21 06.398 +29 34 25.72 V C57
2021-07-25 18:03:59 s 1 +169959.74 0 +163945.58 5150.0 C57
2021-07-25 18:53:59 S 20 21 00.178 +29 34 23.16 V C57
2021-07-25 18:53:59 s 1 +169619.22 0 +167788.22 3700.0 C57
2021-07-25 19:53:59 S 20 20 53.218 +29 34 22.76 V C57
2021-07-25 19:53:59 s 1 +169155.13 6 +172344.51 2570.0 C57
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)