523656 (2011 WO4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4977893941 ± 2.89e-08
Semi-major axis (a)1.7375641396 AU ± 6.53e-09
Inclination (i)60.93465126° ± 1.59e-05
Long. of Asc. Node (Ω)225.17608926° ± 5.90e-06
Arg. of Perihelion (ω)235.99956122° ± 8.53e-06
Mean Anomaly (M)18.80594642° ± 1.25e-05
Mean Motion (n)0.4303293909°/day ± 2.43e-09
Perihelion dist (q)0.87262314 AU ± 5.04e-08
Aphelion dist (Q)2.60250514 AU ± 5.12e-08
Orbital Period2.29039964 yr ± 1.29e-08
Physical Parameters
H (abs. magnitude)19.29
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.247″
Uncertainty0
Orbit TypeApollo
MOID0.028390 AU
Observations Used114
Oppositions5
Arc Total2011-2019
First Observation Used2011-11-17
Last Observation Used2019-05-11
Observations (115)
Date Type RA Dec Mag Band Observatory
2011-11-23 23:50:09 C 21 58 50.75 +03 42 49.4 o H21
2011-11-24 00:30:41 C 21 58 55.06 +03 38 26.4 o 807
2011-11-24 00:37:58 C 21 58 55.92 +03 37 34.3 o 807
2011-11-24 00:45:14 C 21 58 56.78 +03 36 42.3 o 807
2011-11-24 01:27:56 C 21 59 02.39 +03 31 07.3 u H36
2011-11-24 01:46:37 C 21 59 04.57 +03 28 53.3 u H36
2011-11-24 02:05:20 C 21 59 06.82 +03 26 39.4 u H36
2011-11-26 09:59:10 C 22 05 53.83 -03 04 40.0 o 474
2011-11-26 10:00:40 C 22 05 53.99 -03 04 50.7 o 474
2011-11-26 10:02:09 C 22 05 54.19 -03 05 00.6 o 474
2011-11-26 10:03:59 C 22 05 54.41 -03 05 13.1 o 474
2011-11-30 09:57:10 C 22 17 10.62 -13 20 20.7 o 474
2011-11-30 09:58:39 C 22 17 10.79 -13 20 29.7 o 474
2011-11-30 10:01:45 C 22 17 11.14 -13 20 47.9 o 474
2011-11-30 10:03:19 C 22 17 11.34 -13 20 58.0 o 474
2011-11-30 23:54:17 C 22 18 47.23 -14 43 11.4 o H21
2011-12-01 00:00:16 C 22 18 47.86 -14 43 46.3 o H21
2011-12-01 00:06:31 C 22 18 48.55 -14 44 23.1 o H21
2011-12-01 00:12:30 C 22 18 49.22 -14 44 57.8 o H21
2011-12-09 00:37:18 C 22 39 30.76 -30 26 34.8 o 807
2011-12-09 00:44:52 C 22 39 31.47 -30 27 04.7 o 807
2011-12-09 00:52:25 C 22 39 32.19 -30 27 35.3 o 807
2011-12-14 01:11:58 C 22 51 06.08 -37 37 41.2 o 807
2011-12-14 01:24:24 C 22 51 07.17 -37 38 20.4 o 807
2011-12-14 01:32:01 C 22 51 07.86 -37 38 44.1 o 807
2011-12-23 01:11:49 C 23 08 54.11 -47 00 59.4 o 807
2011-12-23 01:17:10 C 23 08 54.51 -47 01 10.6 o 807
2012-04-03 06:52:01 C 13 20 49.40 -85 25 45.1 o 807
2012-04-03 07:05:13 C 13 20 39.24 -85 25 15.7 o 807
2012-05-01 23:03:39 C 12 17 43.83 -45 52 48.5 o 807
2012-05-01 23:07:20 C 12 17 43.86 -45 52 33.7 o 807
2012-05-01 23:15:16 C 12 17 43.97 -45 52 02.4 o 807
2013-06-12 08:54:27 C 19 30 04.48 +55 39 40.7 o 695
2013-06-12 09:04:54 C 19 30 03.83 +55 39 48.8 o 695
2013-06-13 07:28:37 C 19 28 47.51 +55 56 20.0 o 695
2013-06-13 07:39:04 C 19 28 46.88 +55 56 27.7 o 695
2013-06-13 07:49:31 C 19 28 46.28 +55 56 35.5 o 695
2013-07-05 06:43:43 C 18 47 49.108 +60 33 09.56 t 568
2013-07-05 06:45:17 C 18 47 48.965 +60 33 10.02 t 568
2013-07-15 10:32:53 C 18 24 40.912 +61 15 01.02 t 568
2013-07-15 10:33:48 C 18 24 40.836 +61 15 01.03 t 568
2013-07-15 10:34:42 C 18 24 40.755 +61 15 01.09 t 568
2018-07-02 09:55:29 C 01 27 25.96 +59 57 07.9 o 695
2018-07-02 10:18:44 C 01 27 29.21 +59 57 18.2 o 695
2018-08-31 10:24:43 C 05 20 47.09 +60 42 24.8 o 695
2018-08-31 10:36:46 C 05 20 49.07 +60 42 17.5 o 695
2018-08-31 10:48:50 C 05 20 51.04 +60 42 10.1 o 695
2018-10-10 11:16:16 C 07 54 15.69 +26 38 34.3 V G96
2018-10-10 11:23:48 C 07 54 16.89 +26 37 55.7 V G96
2018-10-10 11:31:20 C 07 54 18.08 +26 37 16.7 V G96