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
2015-08-03 07:34:22 C 00 16 35.66 +50 14 58.0 u H21
2015-08-03 07:36:19 C 00 16 35.64 +50 14 52.6 u H21
2015-08-03 07:38:17 C 00 16 35.65 +50 14 47.3 u H21
2015-08-03 07:40:32 C 00 16 35.67 +50 14 41.3 u H21
2015-08-03 13:19:13 C 00 16 50.517 +49 59 37.48 L F52
2015-08-03 13:54:21 C 00 16 49.927 +49 58 00.46 L F52
2015-08-04 09:09:37 C 00 17 46.09 +49 05 43.1 u H21
2015-08-04 09:13:31 C 00 17 46.01 +49 05 33.4 u H21
2015-08-04 09:17:24 C 00 17 46.00 +49 05 23.5 u H21
2015-08-05 00:05:34 C 00 18 24.54 +48 28 37.6 15.6 v B18
2015-08-05 00:09:43 C 00 18 24.50 +48 28 27.8 16.8 v B18
2015-08-05 00:13:52 C 00 18 24.47 +48 28 17.8 17.6 v B18
2015-08-05 00:18:00 C 00 18 24.44 +48 28 08.1 16.8 v B18
2015-08-05 00:22:08 C 00 18 24.39 +48 27 58.4 16.4 v B18
2015-08-05 00:36:24 C 00 18 24.27 +48 27 24.2 16.5 v B18
2015-08-05 00:42:13 C 00 18 24.21 +48 27 10.6 15.6 v B18
2015-08-05 00:44:58 C 00 18 24.20 +48 27 04.0 16.3 v B18
2015-08-05 23:25:22 C 00 19 16.24 +47 35 24.9 17.8 v B18
2015-08-05 23:30:53 C 00 19 16.18 +47 35 13.5 16.9 v B18
2015-08-05 23:32:16 C 00 19 16.16 +47 35 10.2 17.0 v B18
2015-08-05 23:33:39 C 00 19 16.16 +47 35 07.8 16.7 v B18
2015-08-05 23:39:12 C 00 19 16.08 +47 34 56.1 16.9 v B18
2015-08-05 23:40:33 C 00 19 16.07 +47 34 53.2 17.0 v B18
2015-08-05 23:47:29 C 00 19 15.99 +47 34 38.3 17.4 v B18
2015-08-05 23:48:52 C 00 19 15.97 +47 34 35.7 16.6 v B18
2015-08-05 23:50:15 C 00 19 15.97 +47 34 33.0 16.1 v B18
2015-08-06 00:04:02 C 00 19 15.79 +47 34 03.4 17.7 v B18
2015-08-06 00:05:25 C 00 19 15.77 +47 34 00.7 17.2 v B18
2015-08-06 00:06:48 C 00 19 15.75 +47 33 57.8 16.8 v B18
2015-08-06 00:15:06 C 00 19 15.65 +47 33 40.0 17.0 v B18
2015-08-07 00:18:23 C 00 20 02.32 +46 43 40.0 q K38
2015-08-07 00:39:21 C 00 20 02.17 +46 43 02.1 q K38
2015-08-07 00:58:28 C 00 20 02.00 +46 42 27.3 q K38
2015-08-07 01:21:33 C 00 20 01.75 +46 41 44.7 q K38
2015-08-07 01:46:32 C 00 20 01.40 +46 40 57.5 q K38
2015-08-07 02:11:28 C 00 20 01.09 +46 40 10.5 q K38
2015-08-08 00:25:22 C 00 20 32.30 +45 58 17.6 15.6 q 089
2015-08-08 00:27:25 C 00 20 32.25 +45 58 14.0 15.9 q 089
2015-08-08 00:29:28 C 00 20 32.22 +45 58 10.2 16.9 q 089
2015-08-08 00:31:31 C 00 20 32.18 +45 58 06.3 16.3 q 089
2015-08-08 00:33:34 C 00 20 32.21 +45 58 03.7 16.4 q 089
2015-08-08 00:35:37 C 00 20 32.14 +45 57 59.9 16.9 q 089
2015-08-08 00:37:40 C 00 20 32.12 +45 57 55.1 16.8 q 089
2015-08-08 00:39:43 C 00 20 32.07 +45 57 52.2 16.1 q 089
2015-08-08 02:40:05 C 00 20 33.51 +45 54 18.3 q 204
2015-08-08 02:43:35 C 00 20 33.46 +45 54 12.1 q 204
2015-08-08 02:47:05 C 00 20 33.41 +45 54 05.6 q 204
2015-08-08 09:21:46 C 00 20 40.77 +45 42 39.1 u H21
2015-08-08 09:24:38 C 00 20 40.71 +45 42 34.1 u H21
2015-08-08 09:27:29 C 00 20 40.63 +45 42 29.0 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)