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
2015-08-28 06:08:33 C 00 16 37.75 +36 37 30.6 u H21
2015-08-28 06:10:31 C 00 16 37.66 +36 37 28.8 u H21
2015-08-28 06:12:29 C 00 16 37.58 +36 37 27.1 u H21
2015-08-28 06:14:26 C 00 16 37.50 +36 37 25.3 u H21
2015-08-28 06:16:24 C 00 16 37.42 +36 37 23.5 u H21
2015-08-28 06:18:21 C 00 16 37.33 +36 37 21.6 u H21
2015-08-28 06:20:19 C 00 16 37.26 +36 37 19.9 u H21
2015-08-28 06:22:17 C 00 16 37.18 +36 37 18.3 u H21
2015-08-28 06:24:14 C 00 16 37.11 +36 37 16.5 u H21
2015-08-28 06:28:09 C 00 16 36.93 +36 37 13.1 u H21
2015-08-28 06:30:07 C 00 16 36.85 +36 37 11.3 u H21
2015-08-28 06:32:05 C 00 16 36.76 +36 37 09.2 u H21
2015-08-28 06:34:02 C 00 16 36.67 +36 37 07.7 u H21
2015-08-28 06:36:53 C 00 16 36.56 +36 37 05.0 u H21
2015-08-28 23:49:50 C 00 16 10.34 +36 20 58.9 q 160
2015-08-28 23:52:37 C 00 16 10.22 +36 20 56.5 q 160
2015-08-29 21:58:14 C 00 15 37.00 +36 00 17.1 q 160
2015-08-29 22:01:04 C 00 15 36.86 +36 00 14.9 q 160
2015-08-29 22:03:53 C 00 15 36.78 +36 00 12.5 q 160
2015-08-30 22:34:10 C 00 14 56.48 +35 37 27.3 q 160
2015-08-30 22:37:02 C 00 14 56.32 +35 37 24.9 q 160
2015-08-30 22:39:53 C 00 14 56.22 +35 37 22.5 q 160
2015-08-31 05:21:04 C 00 14 45.13 +35 31 14.2 u H21
2015-08-31 05:23:21 C 00 14 45.06 +35 31 11.8 u H21
2015-08-31 05:23:59 C 00 14 45.02 +35 31 11.6 u H21
2015-08-31 05:26:31 C 00 14 44.90 +35 31 09.3 u H21
2015-08-31 05:29:40 C 00 14 44.77 +35 31 06.4 u H21
2015-08-31 05:31:10 C 00 14 44.74 +35 31 05.0 u H21
2015-08-31 05:33:26 C 00 14 44.63 +35 31 03.1 u H21
2015-08-31 05:37:12 C 00 14 44.45 +35 31 00.0 u H21
2015-08-31 05:38:50 C 00 14 44.40 +35 30 58.1 u H21
2015-08-31 05:40:58 C 00 14 44.30 +35 30 56.4 u H21
2015-08-31 05:46:22 C 00 14 44.10 +35 30 51.5 u H21
2015-08-31 05:53:54 C 00 14 43.77 +35 30 45.1 u H21
2015-08-31 06:01:26 C 00 14 43.43 +35 30 38.3 u H21
2015-08-31 06:05:43 C 00 14 43.24 +35 30 34.4 u H21
2015-08-31 07:59:43 C 00 14 38.18 +35 28 49.2 u H21
2015-08-31 08:05:55 C 00 14 37.88 +35 28 43.4 u H21
2015-08-31 08:09:01 C 00 14 37.74 +35 28 40.6 u H21
2015-08-31 08:12:07 C 00 14 37.61 +35 28 37.6 u H21
2015-08-31 08:18:19 C 00 14 37.33 +35 28 31.6 u H21
2015-08-31 08:21:25 C 00 14 37.20 +35 28 28.6 u H21
2015-08-31 08:24:32 C 00 14 37.03 +35 28 25.9 u H21
2015-08-31 08:27:38 C 00 14 36.91 +35 28 22.8 u H21
2015-08-31 08:29:36 C 00 14 36.82 +35 28 20.9 u H21
2015-08-31 23:03:18 C 00 14 14.93 +35 14 39.2 q 160
2015-08-31 23:06:07 C 00 14 14.79 +35 14 36.8 q 160
2015-08-31 23:08:56 C 00 14 14.69 +35 14 34.2 q 160
2015-09-01 06:42:10 C 00 14 00.97 +35 07 37.5 u H21
2015-09-01 06:45:06 C 00 14 00.81 +35 07 34.8 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)