530871 (2011 WS2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7433462484 ± 3.89e-07
Semi-major axis (a)1.0094464853 AU ± 5.29e-09
Inclination (i)46.79650540° ± 2.06e-05
Long. of Asc. Node (Ω)326.71993603° ± 7.97e-05
Arg. of Perihelion (ω)307.68007931° ± 6.25e-05
Mean Anomaly (M)334.03627079° ± 3.39e-05
Mean Motion (n)0.9718233413°/day ± 7.65e-09
Perihelion dist (q)0.25907823 AU ± 3.92e-07
Aphelion dist (Q)1.75981474 AU ± 3.93e-07
Orbital Period1.01420314 yr ± 7.98e-09
Physical Parameters
H (abs. magnitude)17.25
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.305″
Uncertainty0
Orbit TypeApollo
MOID0.093661 AU
Observations Used100
Oppositions1
Arc Total2011-2021
First Observation Used2011-11-17
Last Observation Used2021-01-13
Observations (129)
Date Type RA Dec Mag Band Observatory
2011-11-18 02:41:53 C 17 20 10.00 +38 28 08.5 o H01
2011-11-18 02:51:45 C 17 20 11.78 +38 28 27.7 o H01
2011-11-18 17:52:14 C 17 22 55.05 +38 57 42.3 u I93
2011-11-18 18:16:30 C 17 22 59.37 +38 58 28.5 u I93
2011-11-18 18:32:24 C 17 23 02.33 +38 58 58.3 u I93
2011-11-19 17:53:26 C 17 27 17.11 +39 43 15.5 u J95
2011-11-19 18:02:32 C 17 27 18.75 +39 43 32.4 u J95
2011-11-19 18:11:37 C 17 27 20.39 +39 43 49.0 u J95
2011-11-23 01:32:57 C 17 41 55.48 +42 04 31.1 o 291
2011-11-23 01:35:09 C 17 41 55.86 +42 04 34.8 o 291
2011-11-23 01:37:19 C 17 41 56.28 +42 04 38.3 o 291
2011-11-28 02:22:45 C 18 04 42.90 +45 13 16.8 o 291
2011-11-28 02:24:36 C 18 04 43.27 +45 13 19.4 o 291
2011-11-28 02:26:26 C 18 04 43.64 +45 13 21.8 o 291
2011-12-01 00:17:51 C 18 18 16.54 +46 50 26.2 o H21
2011-12-01 00:21:04 C 18 18 17.17 +46 50 30.3 o H21
2011-12-01 00:22:41 C 18 18 17.48 +46 50 32.6 o H21
2011-12-01 00:30:32 C 18 18 19.00 +46 50 42.5 o H21
2011-12-01 00:32:26 C 18 18 19.38 +46 50 44.9 o H21
2011-12-10 19:06:34 C 19 06 03.34 +51 22 48.6 t 204
2011-12-10 19:23:43 C 19 06 06.96 +51 23 05.6 t 204
2011-12-11 00:00:13 C 19 07 05.38 +51 27 44.6 o H21
2011-12-11 00:03:18 C 19 07 06.02 +51 27 47.5 o H21
2011-12-11 00:05:36 C 19 07 06.52 +51 27 49.5 o H21
2011-12-30 01:47:20 C 20 49 59.68 +57 02 04.7 o 291
2011-12-30 01:49:43 C 20 50 00.27 +57 02 05.9 o 291
2011-12-30 01:52:00 C 20 50 00.80 +57 02 06.9 o 291
2012-01-06 01:36:13 C 21 29 40.23 +58 09 46.1 o 291
2012-01-06 01:38:34 C 21 29 40.80 +58 09 47.1 o 291
2012-01-06 01:40:52 C 21 29 41.32 +58 09 47.7 o 291
2012-01-09 19:04:04 C 21 50 51.88 +58 35 01.9 t 204
2012-01-09 19:33:19 C 21 50 58.74 +58 35 08.8 t 204
2012-02-03 02:34:38 C 00 02 17.72 +58 53 12.0 o 291
2012-02-03 02:37:25 C 00 02 18.37 +58 53 11.1 o 291
2012-02-03 02:40:20 C 00 02 18.90 +58 53 11.1 o 291
2012-03-28 02:55:20 C 03 40 07.50 +52 47 06.2 o 291
2012-03-28 02:59:02 C 03 40 07.97 +52 47 07.5 o 291
2012-03-29 02:45:04 C 03 43 21.46 +52 38 43.9 o 291
2012-03-29 02:56:35 C 03 43 22.97 +52 38 40.1 o 291
2012-03-29 02:59:59 C 03 43 23.40 +52 38 38.9 o 291
2012-03-30 03:12:47 C 03 46 39.32 +52 30 04.1 o 291
2012-03-30 03:16:12 C 03 46 39.68 +52 30 02.9 o 291
2012-03-30 03:19:40 C 03 46 40.22 +52 30 01.6 o 291
2012-12-08 17:53:19 C 19 04 53.34 +46 05 49.1 t 204
2012-12-08 18:05:24 C 19 04 55.80 +46 06 04.2 t 204
2012-12-08 18:18:14 C 19 04 58.32 +46 06 19.5 t 204
2012-12-29 19:43:26 C 20 52 31.34 +53 46 12.0 v 204
2012-12-29 20:17:27 C 20 52 39.05 +53 46 31.7 v 204
2013-01-02 17:36:04 C 21 13 29.28 +54 39 09.8 q 204
2013-01-02 17:59:21 C 21 13 34.46 +54 39 21.2 q 204