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
2015-07-20 03:43:03 C 13 40 34.28 +62 25 25.9 P V78
2015-07-20 03:54:58 C 13 40 45.90 +62 30 57.8 P V78
2015-07-20 04:03:13 C 13 40 53.96 +62 34 47.6 P V78
2015-07-20 20:10:31 C 14 04 39.37 +70 06 37.7 t L04
2015-07-20 20:13:50 C 14 04 45.20 +70 08 02.3 t L04
2015-07-20 20:17:08 C 14 04 51.06 +70 09 26.9 t L04
2015-07-20 20:30:27 C 14 05 26.50 +70 17 24.4 q K14
2015-07-20 20:40:04 C 14 05 42.87 +70 21 30.3 q K14
2015-07-20 20:50:41 C 14 06 00.99 +70 26 01.3 q K14
2015-07-20 21:00:16 C 14 06 17.84 +70 30 05.2 q K14
2015-07-20 22:16:06 C 14 08 53.91 +71 01 17.2 q J95
2015-07-20 22:19:28 C 14 09 00.49 +71 02 42.1 q J95
2015-07-20 22:22:22 C 14 09 06.18 +71 03 55.3 q J95
2015-07-21 04:59:01 C 14 24 57.37 +73 53 01.4 P V78
2015-07-21 05:05:40 C 14 25 14.88 +73 55 37.7 P V78
2015-07-21 05:15:18 C 14 25 40.25 +73 59 21.7 P V78
2015-07-21 20:25:10 C 15 29 00.07 +79 35 53.0 t L04
2015-07-21 20:28:45 C 15 29 20.08 +79 36 57.7 t L04
2015-07-21 20:30:41 C 15 29 30.82 +79 37 32.3 t L04
2015-07-21 20:56:19 C 15 32 25.01 +79 46 24.2 q C95
2015-07-21 20:57:01 C 15 32 29.00 +79 46 36.9 q C95
2015-07-21 20:57:41 C 15 32 32.85 +79 46 49.1 q C95
2015-07-21 20:58:23 C 15 32 36.63 +79 47 01.2 q C95
2015-07-21 20:59:03 C 15 32 40.73 +79 47 13.8 q C95
2015-07-21 21:00:25 C 15 32 48.35 +79 47 38.0 q C95
2015-07-21 21:01:07 C 15 32 52.24 +79 47 50.4 q C95
2015-07-21 21:01:47 C 15 32 56.12 +79 48 02.4 q C95
2015-07-21 21:02:30 C 15 33 00.03 +79 48 14.8 q C95
2015-07-21 21:03:10 C 15 33 03.86 +79 48 26.9 q C95
2015-07-21 21:03:52 C 15 33 07.83 +79 48 39.1 q C95
2015-07-21 21:04:33 C 15 33 11.79 +79 48 51.4 q C95
2015-07-21 21:05:13 C 15 33 15.65 +79 49 03.5 q C95
2015-07-21 21:05:55 C 15 33 19.52 +79 49 15.6 q C95
2015-07-21 21:06:35 C 15 33 23.58 +79 49 28.0 q C95
2015-07-21 21:07:17 C 15 33 27.37 +79 49 40.2 q C95
2015-07-21 21:07:57 C 15 33 31.26 +79 49 52.1 q C95
2015-07-21 21:08:38 C 15 33 35.14 +79 50 04.2 q C95
2015-07-21 21:09:19 C 15 33 38.98 +79 50 16.1 q C95
2015-07-21 21:09:59 C 15 33 42.92 +79 50 28.3 q C95
2015-07-21 21:10:41 C 15 33 46.78 +79 50 40.2 q C95
2015-07-21 21:11:23 C 15 33 50.85 +79 50 52.5 q C95
2015-07-21 21:12:04 C 15 33 54.70 +79 51 04.6 q C95
2015-07-21 21:12:44 C 15 33 58.77 +79 51 17.1 q C95
2015-07-21 21:13:26 C 15 34 02.62 +79 51 29.0 q C95
2015-07-21 21:14:06 C 15 34 06.60 +79 51 41.2 q C95
2015-07-21 21:14:48 C 15 34 10.45 +79 51 52.8 q C95
2015-07-21 21:15:28 C 15 34 14.33 +79 52 05.0 q C95
2015-07-21 21:16:10 C 15 34 18.37 +79 52 17.1 q C95
2015-07-21 21:16:50 C 15 34 22.30 +79 52 29.3 q C95
2015-07-21 21:17:32 C 15 34 26.27 +79 52 41.3 q C95
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)