436724 (2011 UW158)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3766978695 ± 2.47e-09
Semi-major axis (a)1.6204979066 AU ± 5.89e-09
Inclination (i)4.57321637° ± 5.02e-07
Long. of Asc. Node (Ω)285.94058559° ± 1.41e-06
Arg. of Perihelion (ω)8.82944524° ± 2.36e-06
Mean Anomaly (M)5.21917126° ± 9.63e-06
Mean Motion (n)0.4777927601°/day ± 2.61e-09
Perihelion dist (q)1.01005980 AU ± 5.43e-09
Aphelion dist (Q)2.23093602 AU ± 9.04e-09
Orbital Period2.06287404 yr ± 1.13e-08
Physical Parameters
H (abs. magnitude)19.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.283″
Uncertainty0
Orbit TypeApollo
MOID0.004183 AU
Observations Used906
Radar Obs Used8
Oppositions2
Arc Total2011-2025
First Observation Used2011-10-25
Last Observation Used2025-03-03
Observations (957)
Date Type RA Dec Mag Band Observatory
2015-08-20 09:58:39 C 00 20 24.47 +39 37 11.7 u H21
2015-08-20 10:00:43 C 00 20 24.40 +39 37 09.4 u H21
2015-08-20 10:03:06 C 00 20 24.32 +39 37 06.9 u H21
2015-08-21 09:40:21 C 00 20 02.49 +39 13 40.1 u H21
2015-08-21 09:42:31 C 00 20 02.40 +39 13 37.8 u H21
2015-08-21 09:44:35 C 00 20 02.32 +39 13 35.7 u H21
2015-08-21 09:46:39 C 00 20 02.25 +39 13 33.5 u H21
2015-08-21 09:48:43 C 00 20 02.16 +39 13 31.3 u H21
2015-08-21 09:50:47 C 00 20 02.09 +39 13 29.1 u H21
2015-08-21 09:53:03 C 00 20 02.00 +39 13 26.7 u H21
2015-08-25 22:59:13 C 00 17 57.48 +37 28 51.9 t 160
2015-08-25 23:01:59 C 00 17 57.37 +37 28 49.6 t 160
2015-08-25 23:04:46 C 00 17 57.27 +37 28 47.5 t 160
2015-08-26 21:10:48 C 00 17 27.78 +37 07 52.8 q K38
2015-08-26 21:53:12 C 00 17 26.38 +37 07 17.8 q K38
2015-08-26 22:29:23 C 00 17 25.09 +37 06 47.5 q K38
2015-08-26 22:50:00 C 00 17 24.34 +37 06 33.0 q 160
2015-08-26 22:52:51 C 00 17 24.22 +37 06 30.6 q 160
2015-08-26 22:55:40 C 00 17 24.09 +37 06 28.1 q 160
2015-08-26 22:57:12 C 00 17 24.07 +37 06 23.6 q K38
2015-08-27 00:02:42 C 00 17 21.41 +37 05 27.7 c A53
2015-08-27 00:13:50 C 00 17 21.05 +37 05 16.6 q K38
2015-08-27 00:18:38 C 00 17 20.76 +37 05 13.3 c A53
2015-08-27 00:34:49 C 00 17 20.10 +37 04 58.4 c A53
2015-08-27 00:45:15 C 00 17 19.78 +37 04 48.1 q K38
2015-08-27 07:57:34 C 00 17 08.59 +36 58 12.9 q H21
2015-08-27 08:02:18 C 00 17 08.39 +36 58 08.3 q H21
2015-08-27 08:07:03 C 00 17 08.19 +36 58 03.8 q H21
2015-08-27 08:11:43 C 00 17 07.98 +36 57 59.4 q H21
2015-08-27 08:16:22 C 00 17 07.78 +36 57 55.1 q H21
2015-08-27 08:21:06 C 00 17 07.58 +36 57 50.6 q H21
2015-08-27 08:26:00 C 00 17 07.37 +36 57 46.0 q H21
2015-08-27 17:30:40 C 00 16 55.44 +36 49 26.0 q D29
2015-08-27 17:54:05 C 00 16 54.39 +36 49 04.3 q D29
2015-08-27 18:17:29 C 00 16 53.33 +36 48 42.8 q D29
2015-08-27 21:09:23 C 00 16 53.45 +36 45 35.3 K14
2015-08-27 21:25:51 C 00 16 52.90 +36 45 22.1 K14
2015-08-27 21:42:46 C 00 16 52.33 +36 45 07.9 K14
2015-08-27 22:06:53 C 00 16 51.48 +36 44 48.4 K14
2015-08-27 22:30:39 C 00 16 50.04 +36 44 27.2 q 160
2015-08-27 22:33:32 C 00 16 49.91 +36 44 24.8 q 160
2015-08-27 22:36:25 C 00 16 49.81 +36 44 22.3 q 160
2015-08-28 02:15:13 C 00 16 45.74 +36 40 48.9 q 932
2015-08-28 02:20:22 C 00 16 45.57 +36 40 44.6 q 932
2015-08-28 02:35:48 C 00 16 45.06 +36 40 32.3 q 932
2015-08-28 02:40:59 C 00 16 44.90 +36 40 27.7 q 932
2015-08-28 06:00:43 C 00 16 38.06 +36 37 37.4 u H21
2015-08-28 06:02:40 C 00 16 38.00 +36 37 35.7 u H21
2015-08-28 06:04:38 C 00 16 37.90 +36 37 33.9 u H21
2015-08-28 06:06:36 C 00 16 37.82 +36 37 32.2 u H21
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-07-13 23:20:00 25448571.987 10 us 8560 -14 -14
2015-07-13 23:30:00 25429561.936 1 us 8560 -14 -14
2015-07-13 23:50:00 25391738.755 0.2 us 8560 -14 -14
2015-07-14 21:07:00 23131754.44 4 us 2380 -1 -1
2015-07-14 21:44:00 23068451.37 0.5 us 2380 -1 -1
2015-07-17 00:00:00 18689788.228 0.5 us 8560 -14 -14
2015-07-18 19:30:00 16618701.731 0.5 us 8560 -14 -14
2015-07-26 11:10:00 28804724.53 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)