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
2015-09-07 07:02:29 C 00 09 36.23 +32 50 28.7 u H21
2015-09-07 07:09:01 C 00 09 35.92 +32 50 22.2 u H21
2015-09-07 07:17:00 C 00 09 35.57 +32 50 14.5 u H21
2015-09-07 07:23:32 C 00 09 35.26 +32 50 08.2 u H21
2015-09-07 07:30:47 C 00 09 34.92 +32 50 01.2 u H21
2015-09-07 07:36:57 C 00 09 34.64 +32 49 55.1 u H21
2015-09-07 09:02:02 C 00 09 30.80 +32 48 29.5 u H21
2015-09-07 09:06:53 C 00 09 30.58 +32 48 24.5 u H21
2015-09-07 09:11:34 C 00 09 30.39 +32 48 19.8 u H21
2015-09-07 09:16:13 C 00 09 30.19 +32 48 15.1 u H21
2015-09-07 09:20:52 C 00 09 29.98 +32 48 10.3 u H21
2015-09-07 09:25:37 C 00 09 29.78 +32 48 05.3 u H21
2015-09-07 09:30:16 C 00 09 29.56 +32 48 00.6 u H21
2015-09-07 09:34:50 C 00 09 29.37 +32 47 55.9 u H21
2015-09-07 09:38:16 C 00 09 29.23 +32 47 52.3 u H21
2015-09-07 22:10:35 C 00 09 08.90 +32 35 39.7 q 160
2015-09-07 22:13:23 C 00 09 08.78 +32 35 37.2 q 160
2015-09-07 22:16:12 C 00 09 08.65 +32 35 34.6 q 160
2015-09-08 05:17:38 C 00 08 50.92 +32 28 53.6 o Z22
2015-09-08 05:20:10 C 00 08 50.79 +32 28 51.1 o Z22
2015-09-09 22:24:24 C 00 07 35.74 +31 48 24.6 q 160
2015-09-09 22:27:14 C 00 07 35.62 +31 48 21.9 q 160
2015-09-09 22:30:05 C 00 07 35.49 +31 48 18.8 q 160
2015-09-11 18:55:05 C 00 06 09.85 +31 04 02.8 q 168
2015-09-11 19:50:20 C 00 06 07.67 +31 03 08.6 q 168
2015-09-11 19:52:32 C 00 06 07.59 +31 03 06.6 q 168
2015-09-11 19:55:50 C 00 06 07.43 +31 03 03.2 q 168
2015-09-11 20:54:57 C 00 06 04.99 +31 02 04.9 q 168
2015-09-11 22:15:43 C 00 06 03.75 +31 00 52.7 q 160
2015-09-11 22:18:35 C 00 06 03.63 +31 00 50.0 q 160
2015-09-11 22:21:19 C 00 06 03.49 +31 00 47.3 q 160
2015-09-13 16:32:53 C 00 04 44.18 +30 18 10.7 q 168
2015-09-13 18:32:17 C 00 04 39.74 +30 16 15.0 q 168
2015-09-13 18:37:07 C 00 04 39.54 +30 16 10.2 q 168
2015-09-13 20:29:40 C 00 04 35.11 +30 14 18.3 q 168
2015-09-13 20:32:09 C 00 04 34.97 +30 14 15.7 q 168
2015-09-15 20:25:04 C 00 03 08.08 +29 25 51.4 16.6 q 089
2015-09-15 20:30:09 C 00 03 07.85 +29 25 45.8 17.4 q 089
2015-09-15 20:32:42 C 00 03 07.76 +29 25 42.8 17.9 q 089
2015-09-15 20:35:15 C 00 03 07.68 +29 25 40.9 18.0 q 089
2015-09-15 20:37:48 C 00 03 07.59 +29 25 38.4 17.1 q 089
2015-09-15 20:40:21 C 00 03 07.47 +29 25 35.7 16.8 q 089
2015-09-15 20:42:54 C 00 03 07.34 +29 25 33.2 16.8 q 089
2015-09-15 20:45:27 C 00 03 07.26 +29 25 31.0 17.2 q 089
2015-09-16 19:37:39 C 00 02 26.91 +29 02 12.0 16.3 q 089
2015-09-16 19:42:45 C 00 02 26.75 +29 02 08.1 17.3 q 089
2015-09-16 19:50:13 C 00 02 26.49 +29 02 00.2 16.4 q 089
2015-09-16 19:52:46 C 00 02 26.41 +29 01 57.0 16.2 q 089
2015-09-16 19:55:19 C 00 02 26.33 +29 01 54.4 17.0 q 089
2015-09-16 19:57:52 C 00 02 26.20 +29 01 52.1 16.8 q 089
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)