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
2015-09-01 06:48:03 C 00 14 00.67 +35 07 32.4 u H21
2015-09-01 06:50:59 C 00 14 00.55 +35 07 29.9 u H21
2015-09-01 06:53:56 C 00 14 00.39 +35 07 27.5 u H21
2015-09-01 07:05:00 C 00 13 59.84 +35 07 18.0 u H21
2015-09-02 06:42:39 C 00 13 19.10 +34 45 08.2 u H21
2015-09-02 06:48:27 C 00 13 18.85 +34 45 02.8 u H21
2015-09-02 06:54:37 C 00 13 18.58 +34 44 57.0 u H21
2015-09-02 07:01:09 C 00 13 18.26 +34 44 51.0 u H21
2015-09-02 07:07:19 C 00 13 17.99 +34 44 45.2 u H21
2015-09-02 07:12:56 C 00 13 17.73 +34 44 40.1 u H21
2015-09-02 07:18:22 C 00 13 17.48 +34 44 35.0 u H21
2015-09-02 07:23:49 C 00 13 17.24 +34 44 29.8 u H21
2015-09-02 07:29:15 C 00 13 16.99 +34 44 24.6 u H21
2015-09-02 07:45:34 C 00 13 16.23 +34 44 09.4 u H21
2015-09-02 07:51:01 C 00 13 16.02 +34 44 04.2 u H21
2015-09-02 07:56:27 C 00 13 15.76 +34 43 58.9 u H21
2015-09-02 08:07:20 C 00 13 15.25 +34 43 48.6 u H21
2015-09-02 08:12:47 C 00 13 15.02 +34 43 43.3 u H21
2015-09-02 08:18:13 C 00 13 14.77 +34 43 38.2 u H21
2015-09-02 08:23:39 C 00 13 14.51 +34 43 32.8 u H21
2015-09-02 08:29:06 C 00 13 14.26 +34 43 27.6 u H21
2015-09-02 08:34:32 C 00 13 14.02 +34 43 22.4 u H21
2015-09-02 08:39:59 C 00 13 13.78 +34 43 17.0 u H21
2015-09-02 08:45:31 C 00 13 13.54 +34 43 11.6 u H21
2015-09-02 08:51:13 C 00 13 13.26 +34 43 06.1 u H21
2015-09-02 08:56:40 C 00 13 13.03 +34 43 00.6 u H21
2015-09-02 09:02:06 C 00 13 12.80 +34 42 55.3 u H21
2015-09-02 09:07:33 C 00 13 12.56 +34 42 49.9 u H21
2015-09-02 09:12:59 C 00 13 12.33 +34 42 44.4 u H21
2015-09-02 09:18:04 C 00 13 12.11 +34 42 39.3 u H21
2015-09-02 09:23:36 C 00 13 11.87 +34 42 33.9 u H21
2015-09-02 09:28:46 C 00 13 11.67 +34 42 28.5 u H21
2015-09-03 08:38:17 C 00 12 31.01 +34 20 42.5 q H21
2015-09-03 08:42:50 C 00 12 30.81 +34 20 37.8 q H21
2015-09-03 08:47:23 C 00 12 30.59 +34 20 33.4 q H21
2015-09-03 08:51:50 C 00 12 30.40 +34 20 29.1 q H21
2015-09-03 08:56:17 C 00 12 30.19 +34 20 24.7 q H21
2015-09-03 09:00:50 C 00 12 29.99 +34 20 20.1 q H21
2015-09-03 09:05:23 C 00 12 29.79 +34 20 15.7 q H21
2015-09-03 18:34:25 C 00 12 13.16 +34 11 26.1 q D29
2015-09-03 19:00:39 C 00 12 11.94 +34 11 00.7 q D29
2015-09-03 19:26:52 C 00 12 10.76 +34 10 33.9 q D29
2015-09-04 05:08:30 C 00 11 52.27 +34 01 22.8 o Z22
2015-09-04 05:20:09 C 00 11 51.85 +34 01 11.1 o Z22
2015-09-04 05:32:13 C 00 11 51.27 +34 00 58.9 o Z22
2015-09-06 23:06:19 C 00 09 52.43 +32 58 04.4 q 160
2015-09-06 23:09:11 C 00 09 52.32 +32 58 01.8 q 160
2015-09-06 23:12:02 C 00 09 52.20 +32 57 59.3 q 160
2015-09-07 06:48:42 C 00 09 36.86 +32 50 41.9 u H21
2015-09-07 06:54:30 C 00 09 36.59 +32 50 36.2 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)