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
2015-10-01 03:40:01 C 23 54 52.96 +23 18 12.9 u H21
2015-10-01 03:40:39 C 23 54 53.67 +23 18 14.1 o 691
2015-10-01 03:42:48 C 23 54 52.91 +23 18 10.1 u H21
2015-10-01 03:45:14 C 23 54 53.59 +23 18 10.1 o 691
2015-10-01 03:45:35 C 23 54 52.85 +23 18 07.4 u H21
2015-10-01 03:48:23 C 23 54 52.78 +23 18 04.8 u H21
2015-10-01 03:49:51 C 23 54 53.50 +23 18 05.8 o 691
2015-10-01 03:51:52 C 23 54 52.70 +23 18 01.4 u H21
2015-10-01 18:27:23 C 23 54 39.48 +23 04 14.1 q D29
2015-10-01 18:49:26 C 23 54 39.00 +23 03 52.9 q D29
2015-10-01 19:11:31 C 23 54 38.66 +23 03 29.2 q D29
2015-10-02 03:39:48 C 23 54 35.67 +22 55 35.0 o 691
2015-10-02 03:44:27 C 23 54 35.58 +22 55 30.4 o 691
2015-10-02 03:49:06 C 23 54 35.49 +22 55 26.5 o 691
2015-10-02 05:31:25 C 23 54 33.34 +22 53 51.6 R G45
2015-10-02 05:34:00 C 23 54 33.32 +22 53 49.5 R G45
2015-10-02 05:39:14 C 23 54 33.19 +22 53 44.6 R G45
2015-10-02 05:46:51 C 23 54 33.03 +22 53 37.6 R G45
2015-10-02 05:46:57 C 23 54 33.02 +22 53 37.2 R G45
2015-10-02 05:54:45 C 23 54 32.87 +22 53 30.2 R G45
2015-10-10 05:15:39 C 23 53 23.23 +20 04 01.3 q 703
2015-10-10 05:22:52 C 23 53 23.18 +20 03 55.3 q 703
2015-10-10 05:30:05 C 23 53 23.20 +20 03 49.1 q 703
2015-10-10 05:32:04 C 23 53 23.00 +20 03 47.1 R G45
2015-10-10 05:37:18 C 23 53 23.00 +20 03 43.5 q 703
2015-10-10 05:40:04 C 23 53 22.98 +20 03 40.3 R G45
2015-10-10 05:47:47 C 23 53 22.86 +20 03 33.6 R G45
2015-10-10 05:55:18 C 23 53 22.82 +20 03 28.0 R G45
2015-10-20 13:24:51 C 23 55 13.26 +17 01 16.6 q D29
2015-10-20 13:50:15 C 23 55 13.44 +17 00 59.5 q D29
2015-11-08 03:08:25 C 00 07 00.06 +13 32 09.0 q G96
2015-11-08 03:15:46 C 00 07 00.28 +13 32 06.4 q G96
2015-11-08 03:23:08 C 00 07 00.54 +13 32 04.4 q G96
2015-11-08 03:30:28 C 00 07 00.75 +13 32 02.3 q G96
2015-11-10 02:06:21 C 00 08 45.60 +13 18 23.5 u H21
2015-11-10 02:14:43 C 00 08 45.88 +13 18 21.0 u H21
2015-11-10 02:23:55 C 00 08 46.19 +13 18 18.2 u H21
2017-04-19 05:19:04 C 11 20 45.16 -09 47 28.0 q G96
2017-04-19 05:25:19 C 11 20 44.77 -09 47 24.8 q G96
2017-04-19 05:31:27 C 11 20 44.36 -09 47 22.2 q G96
2017-04-19 05:37:36 C 11 20 44.00 -09 47 19.3 q G96
2017-10-11 05:20:20 C 20 14 58.574 -07 20 55.19 L F51
2017-10-11 05:56:37 C 20 15 05.891 -07 20 34.58 L F51
2017-10-11 06:14:55 C 20 15 09.565 -07 20 24.15 L F51
2019-04-04 08:18:49 C 10 27 31.447 -00 53 24.41 U F51
2019-04-04 08:51:45 C 10 27 29.601 -00 53 12.46 U F51
2019-04-04 09:08:13 C 10 27 28.704 -00 53 06.74 U F51
2021-02-17 11:25:18 C 10 39 55.433 +01 00 49.08 U F51
2021-02-17 11:43:47 C 10 39 54.281 +01 00 52.90 U F51
2021-02-17 12:02:07 C 10 39 53.138 +01 00 56.67 U F51
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)