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
2015-09-16 20:00:25 C 00 02 26.11 +29 01 49.0 17.0 q 089
2015-09-17 21:49:36 C 00 01 41.41 +28 35 34.6 S K14
2015-09-17 22:03:13 C 00 01 40.87 +28 35 21.4 S K14
2015-09-20 22:25:19 C 23 59 42.14 +27 21 28.5 q 160
2015-09-20 22:28:18 C 23 59 42.03 +27 21 25.2 q 160
2015-09-20 22:31:16 C 23 59 41.95 +27 21 22.3 q 160
2015-09-20 22:58:56 C 23 59 40.17 +27 20 51.9 19.8 q 089
2015-09-20 23:01:36 C 23 59 40.08 +27 20 48.6 18.7 q 089
2015-09-20 23:04:17 C 23 59 40.01 +27 20 46.4 18.3 q 089
2015-09-20 23:06:56 C 23 59 39.91 +27 20 43.5 17.7 q 089
2015-09-20 23:09:38 C 23 59 39.82 +27 20 40.8 18.0 q 089
2015-09-21 13:44:59 C 23 59 18.44 +27 06 38.3 q Q68
2015-09-21 14:10:39 C 23 59 17.48 +27 06 12.3 q Q68
2015-09-21 22:57:12 C 23 59 04.76 +26 56 30.4 q 160
2015-09-21 23:00:15 C 23 59 04.66 +26 56 27.5 q 160
2015-09-21 23:03:14 C 23 59 04.57 +26 56 24.3 q 160
2015-09-25 04:58:04 C 23 57 18.44 +25 37 46.6 u H21
2015-09-25 05:00:54 C 23 57 18.36 +25 37 43.7 u H21
2015-09-25 05:03:55 C 23 57 18.26 +25 37 40.8 u H21
2015-09-25 05:06:57 C 23 57 18.18 +25 37 37.9 u H21
2015-09-25 05:09:58 C 23 57 18.10 +25 37 34.6 u H21
2015-09-25 05:12:58 C 23 57 18.00 +25 37 31.8 u H21
2015-09-25 05:15:58 C 23 57 17.90 +25 37 28.7 u H21
2015-09-25 05:18:52 C 23 57 17.81 +25 37 25.7 u H21
2015-09-25 05:20:51 C 23 57 17.76 +25 37 23.7 u H21
2015-09-27 03:49:19 C 23 56 23.87 +24 51 09.5 u H21
2015-09-27 03:52:20 C 23 56 23.78 +24 51 06.7 u H21
2015-09-27 03:55:20 C 23 56 23.71 +24 51 03.7 u H21
2015-09-27 03:58:21 C 23 56 23.64 +24 51 00.8 u H21
2015-09-27 04:01:21 C 23 56 23.54 +24 50 57.7 u H21
2015-09-27 04:04:22 C 23 56 23.45 +24 50 54.9 u H21
2015-09-27 04:07:23 C 23 56 23.38 +24 50 52.1 u H21
2015-09-27 04:10:23 C 23 56 23.31 +24 50 49.2 u H21
2015-09-27 04:13:24 C 23 56 23.21 +24 50 46.2 u H21
2015-09-27 04:18:05 C 23 56 23.10 +24 50 41.7 u H21
2015-09-27 04:23:54 C 23 56 22.94 +24 50 36.1 u H21
2015-09-27 04:28:02 C 23 56 22.82 +24 50 32.1 u H21
2015-09-27 04:31:02 C 23 56 22.75 +24 50 29.2 u H21
2015-09-27 04:34:03 C 23 56 22.67 +24 50 26.2 u H21
2015-09-27 04:37:03 C 23 56 22.60 +24 50 23.3 u H21
2015-09-27 04:40:03 C 23 56 22.50 +24 50 20.2 u H21
2015-09-27 04:43:57 C 23 56 22.37 +24 50 16.4 u H21
2015-09-30 05:45:16 C 23 55 10.90 +23 39 13.5 o 691
2015-09-30 05:49:27 C 23 55 10.79 +23 39 09.6 o 691
2015-09-30 05:53:58 C 23 55 10.68 +23 39 05.1 o 691
2015-10-01 03:22:42 C 23 54 53.34 +23 18 29.2 u H21
2015-10-01 03:25:43 C 23 54 53.27 +23 18 26.4 u H21
2015-10-01 03:31:38 C 23 54 53.13 +23 18 20.6 u H21
2015-10-01 03:34:26 C 23 54 53.07 +23 18 18.1 u H21
2015-10-01 03:37:13 C 23 54 53.02 +23 18 15.4 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)