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
2015-07-02 23:15:55 C 12 37 44.81 -17 49 35.1 q W88
2015-07-02 23:31:15 C 12 37 44.57 -17 48 59.3 q W88
2015-07-02 23:45:17 C 12 37 44.35 -17 48 26.2 q W88
2015-07-03 00:01:05 C 12 37 44.12 -17 47 48.8 q W88
2015-07-03 00:16:00 C 12 37 43.91 -17 47 13.4 q W88
2015-07-08 00:36:33 C 12 41 12.35 -11 24 39.1 q W85
2015-07-08 00:39:10 C 12 41 12.34 -11 24 27.5 q W85
2015-07-08 00:41:47 C 12 41 12.33 -11 24 16.0 q W85
2015-07-08 00:44:24 C 12 41 12.32 -11 24 04.3 q W85
2015-07-08 00:47:00 C 12 41 12.31 -11 23 52.8 q W85
2015-07-08 00:49:36 C 12 41 12.30 -11 23 41.0 q W85
2015-07-08 00:52:54 C 12 41 12.30 -11 23 26.4 q W85
2015-07-09 04:27:21 C 12 42 20.36 -09 15 47.3 o 691
2015-07-09 04:29:36 C 12 42 20.38 -09 15 35.5 o 691
2015-07-09 04:31:51 C 12 42 20.41 -09 15 23.6 o 691
2015-07-09 09:44:50 C 12 42 38.39 -08 44 07.2 q Q64
2015-07-09 09:50:29 C 12 42 38.39 -08 43 36.4 q Q64
2015-07-09 09:56:01 C 12 42 38.39 -08 43 06.1 q Q64
2015-07-09 10:01:34 C 12 42 38.40 -08 42 36.0 q Q64
2015-07-09 10:07:06 C 12 42 38.40 -08 42 05.4 q Q64
2015-07-09 10:12:38 C 12 42 38.41 -08 41 35.1 q Q64
2015-07-09 10:18:11 C 12 42 38.43 -08 41 04.8 q Q64
2015-07-09 10:24:16 C 12 42 38.45 -08 40 31.5 q Q64
2015-07-09 10:26:19 C 12 42 38.45 -08 40 20.0 q Q62
2015-07-09 10:36:05 C 12 42 38.52 -08 39 26.4 q Q62
2015-07-09 10:46:28 C 12 42 38.60 -08 38 29.2 q Q62
2015-07-09 10:58:00 C 12 42 38.70 -08 37 25.7 q Q62
2015-07-09 22:00:20 C 12 43 10.89 -07 39 06.3 15.9 q Z21
2015-07-09 22:02:18 C 12 43 10.91 -07 38 54.7 15.9 q Z21
2015-07-09 22:04:16 C 12 43 10.93 -07 38 42.9 15.6 q Z21
2015-07-09 22:06:14 C 12 43 10.95 -07 38 31.4 15.4 q Z21
2015-07-09 22:08:12 C 12 43 10.98 -07 38 19.6 15.2 q Z21
2015-07-09 22:10:10 C 12 43 11.02 -07 38 08.0 15.2 q Z21
2015-07-10 21:50:24 C 12 44 29.66 -05 07 42.7 15.0 q Z21
2015-07-10 21:50:54 C 12 44 29.65 -05 07 39.3 15.8 q Z21
2015-07-10 21:51:23 C 12 44 29.67 -05 07 35.8 15.5 q Z21
2015-07-10 21:51:54 C 12 44 29.67 -05 07 32.0 15.6 q Z21
2015-07-10 21:52:23 C 12 44 29.67 -05 07 28.7 15.5 q Z21
2015-07-10 21:53:00 C 12 44 29.67 -05 07 24.5 15.6 q Z21
2015-07-10 21:53:29 C 12 44 29.69 -05 07 21.1 15.5 q Z21
2015-07-10 21:53:59 C 12 44 29.69 -05 07 17.9 15.4 q Z21
2015-07-10 21:54:27 C 12 44 29.70 -05 07 14.7 15.4 q Z21
2015-07-13 02:24:44 C 12 48 18.62 +02 19 34.3 q H21
2015-07-13 02:28:52 C 12 48 18.78 +02 20 17.4 q H21
2015-07-13 02:32:59 C 12 48 18.95 +02 21 00.5 q H21
2015-07-13 02:37:07 C 12 48 19.12 +02 21 43.6 q H21
2015-07-13 02:41:15 C 12 48 19.29 +02 22 26.6 q H21
2015-07-13 02:45:23 C 12 48 19.47 +02 23 09.9 q H21
2015-07-13 02:49:56 C 12 48 19.67 +02 23 57.3 q H21
2015-07-14 20:37:47 C 12 52 46.04 +11 10 23.7 q 160
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)