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
2011-11-03 00:38:32 C 03 54 13.07 +29 52 22.0 o 246
2011-11-03 09:19:09 C 03 53 30.55 +29 49 39.6 r G96
2011-11-03 09:31:38 C 03 53 29.50 +29 49 35.2 r G96
2011-11-03 09:44:09 C 03 53 28.42 +29 49 31.4 r G96
2011-11-03 09:56:39 C 03 53 27.38 +29 49 27.0 r G96
2011-11-03 11:28:07 C 03 53 19.63 +29 48 56.5 o 291
2011-11-03 11:31:53 C 03 53 19.30 +29 48 55.7 o 291
2011-11-03 11:35:39 C 03 53 18.98 +29 48 54.6 o 291
2011-11-04 11:11:06 C 03 51 23.17 +29 41 09.0 o 291
2011-11-04 11:14:45 C 03 51 22.82 +29 41 07.6 o 291
2011-11-09 05:11:25 C 03 41 57.22 +28 59 16.1 u G51
2011-11-09 05:32:28 C 03 41 55.43 +28 59 07.8 u G51
2011-11-09 05:55:23 C 03 41 53.45 +28 58 59.1 u G51
2011-11-09 07:58:37 C 03 41 42.87 +28 58 11.1 u G51
2011-11-09 08:09:06 C 03 41 41.95 +28 58 07.1 u G51
2011-11-09 08:19:30 C 03 41 41.05 +28 58 03.0 u G51
2011-11-16 02:39:11 C 03 28 28.23 +27 47 56.7 t 204
2011-11-16 03:18:21 C 03 28 25.10 +27 47 37.7 t 204
2011-11-16 10:34:26 C 03 27 50.80 +27 44 21.6 o 291
2011-11-16 10:38:05 C 03 27 50.61 +27 44 18.7 o 291
2011-11-16 10:41:44 C 03 27 50.29 +27 44 17.2 o 291
2011-11-17 04:40:54 C 03 26 27.38 +27 35 58.1 o 291
2011-11-17 04:44:39 C 03 26 27.06 +27 35 56.3 o 291
2011-11-17 04:48:24 C 03 26 26.79 +27 35 54.7 o 291
2011-11-26 08:26:09 C 03 10 59.18 +25 50 54.1 o 291
2011-11-26 08:30:21 C 03 10 58.91 +25 50 51.6 o 291
2011-11-26 08:34:33 C 03 10 58.66 +25 50 50.3 o 291
2011-11-28 04:51:22 C 03 08 19.53 +25 29 45.7 r G96
2011-11-28 05:05:30 C 03 08 18.74 +25 29 38.7 r G96
2011-11-28 05:19:38 C 03 08 17.88 +25 29 32.4 r G96
2011-11-28 05:33:50 C 03 08 16.98 +25 29 25.6 r G96
2011-12-23 06:37:03 C 02 49 58.80 +21 45 17.8 o 291
2011-12-23 06:45:05 C 02 49 58.74 +21 45 15.5 o 291
2011-12-23 06:53:07 C 02 49 58.69 +21 45 13.2 o 291
2011-12-24 07:45:04 C 02 49 53.79 +21 39 15.5 o 291
2011-12-24 07:56:35 C 02 49 53.91 +21 39 12.7 o 291
2011-12-24 08:08:06 C 02 49 53.85 +21 39 08.9 o 291
2013-03-05 07:40:55 C 15 30 40.15 -27 34 41.3 u 807
2013-03-05 07:50:46 C 15 30 41.22 -27 34 47.4 u 807
2013-03-05 08:00:58 C 15 30 42.31 -27 34 53.5 u 807
2013-03-11 08:22:31 C 15 47 13.65 -29 00 25.9 u 807
2013-03-11 08:29:34 C 15 47 14.47 -29 00 29.9 u 807
2013-03-11 08:36:05 C 15 47 15.22 -29 00 33.8 u 807
2013-03-11 08:42:38 C 15 47 15.97 -29 00 38.1 u 807
2013-04-05 09:45:52 C 17 13 15.30 -34 21 07.8 u 807
2013-04-05 09:50:09 C 17 13 16.05 -34 21 09.6 u 807
2013-04-05 10:03:39 C 17 13 18.36 -34 21 14.9 u 807
2013-05-07 14:45:49 C 20 18 16.26 -32 25 21.8 o 474
2013-05-07 14:46:51 C 20 18 16.57 -32 25 20.6 o 474
2013-05-07 14:47:50 C 20 18 16.86 -32 25 19.6 o 474
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)