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
2015-07-26 00:24:15 C 23 38 40.88 +68 32 36.6 q C23
2015-07-26 00:26:42 C 23 38 42.12 +68 32 12.8 q C23
2015-07-26 00:29:10 C 23 38 43.40 +68 31 48.9 q C23
2015-07-26 00:31:37 C 23 38 44.65 +68 31 25.4 q C23
2015-07-26 00:34:05 C 23 38 45.89 +68 31 01.3 q C23
2015-07-26 00:36:31 C 23 38 47.12 +68 30 37.6 q C23
2015-07-26 00:38:59 C 23 38 48.39 +68 30 13.9 q C23
2015-07-26 00:41:26 C 23 38 49.62 +68 29 50.0 q C23
2015-07-26 00:43:54 C 23 38 50.88 +68 29 26.2 q C23
2015-07-26 00:46:21 C 23 38 52.13 +68 29 02.1 q C23
2015-07-26 00:48:42 C 23 39 03.53 +68 29 22.2 c Z90
2015-07-26 00:48:48 C 23 38 53.37 +68 28 38.4 q C23
2015-07-27 05:42:04 C 23 52 43.86 +64 04 08.5 P V78
2015-07-27 06:01:11 C 23 52 49.38 +64 01 44.8 P V78
2015-07-27 06:17:54 C 23 52 53.98 +63 59 39.6 P V78
2015-07-27 22:51:52 C 23 57 51.81 +61 53 13.0 15.5 q 089
2015-07-27 22:54:12 C 23 57 52.26 +61 52 57.1 15.8 q 089
2015-07-27 22:58:52 C 23 57 53.07 +61 52 25.8 16.4 q 089
2015-07-27 23:01:12 C 23 57 53.49 +61 52 09.9 15.5 q 089
2015-07-27 23:03:33 C 23 57 53.88 +61 51 53.8 14.4 q 089
2015-07-27 23:08:17 C 23 57 54.72 +61 51 21.6 14.7 q 089
2015-07-28 04:31:45 S 23 58 51.31 +61 11 11.2 L C51
2015-07-28 07:40:48 S 23 59 37.14 +60 49 40.3 L C51
2015-07-28 09:15:14 S 23 59 59.42 +60 39 05.3 L C51
2015-07-28 10:49:51 S 00 00 20.99 +60 28 38.4 L C51
2015-07-28 12:24:17 S 00 00 42.33 +60 18 16.7 L C51
2015-07-28 15:33:20 S 00 01 23.34 +59 57 56.0 L C51
2015-07-29 00:12:06 C 00 03 44.38 +59 05 55.9 q G40
2015-07-29 02:01:40 C 00 03 57.16 +58 56 09.5 q G40
2015-07-30 03:00:37 C 00 07 58.43 +56 36 23.5 q W19
2015-07-30 03:24:03 C 00 08 01.66 +56 34 39.0 q W19
2015-07-30 03:39:57 C 00 08 03.82 +56 33 28.3 q W19
2015-07-30 03:56:15 C 00 08 05.82 +56 32 16.3 q W19
2015-07-30 04:13:05 C 00 08 07.80 +56 31 01.6 q W19
2015-07-31 07:44:40 C 00 11 11.80 +54 25 49.6 u H21
2015-07-31 07:47:23 C 00 11 11.89 +54 25 38.5 u H21
2015-07-31 07:50:08 C 00 11 11.94 +54 25 27.5 u H21
2015-07-31 07:52:51 C 00 11 12.05 +54 25 16.8 u H21
2015-07-31 07:55:35 C 00 11 12.10 +54 25 06.0 u H21
2015-07-31 07:58:18 C 00 11 12.22 +54 24 55.0 u H21
2015-07-31 08:01:02 C 00 11 12.29 +54 24 44.0 u H21
2015-07-31 08:03:45 C 00 11 12.40 +54 24 33.1 u H21
2015-07-31 08:06:29 C 00 11 12.45 +54 24 22.2 u H21
2015-07-31 08:11:55 C 00 11 12.61 +54 24 00.3 u H21
2015-07-31 08:14:39 C 00 11 12.68 +54 23 49.1 u H21
2015-07-31 08:17:22 C 00 11 12.77 +54 23 38.1 u H21
2015-07-31 08:20:05 C 00 11 12.84 +54 23 27.0 u H21
2015-07-31 08:22:49 C 00 11 12.92 +54 23 16.0 u H21
2015-07-31 08:26:08 C 00 11 12.97 +54 23 03.0 u H21
2015-08-01 00:27:19 C 00 12 48.27 +53 17 59.3 15.7 u 104
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)