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
2013-01-02 18:16:12 C 21 13 38.22 +54 39 29.9 q 204
2013-12-15 20:06:45 C 19 41 02.17 +44 35 21.8 q 204
2013-12-15 20:19:00 C 19 41 04.62 +44 35 36.5 q 204
2013-12-15 20:31:27 C 19 41 07.14 +44 35 51.5 q 204
2014-12-11 18:04:33 C 19 22 18.89 +36 55 38.2 q 204
2014-12-11 18:27:23 C 19 22 23.25 +36 56 16.0 q 204
2016-12-22 17:44:47 C 20 14 05.46 +33 51 03.9 U 204
2016-12-22 18:05:53 C 20 14 09.42 +33 51 38.6 U 204
2018-02-26 03:16:04 C 01 00 53.42 +51 02 09.6 o 291
2018-02-26 03:26:26 C 01 00 55.18 +51 02 11.5 o 291
2018-02-26 03:40:16 C 01 00 57.65 +51 02 14.0 o 291
2018-12-13 01:43:44 C 19 22 57.16 +12 55 30.6 U I41
2018-12-13 01:50:49 C 19 22 58.50 +12 55 50.8 U I41
2018-12-13 01:57:55 C 19 22 59.87 +12 56 11.1 U I41
2018-12-13 02:05:00 C 19 23 01.25 +12 56 30.7 U I41
2019-01-15 18:29:34 C 21 52 36.00 +38 39 17.3 V 204
2019-01-15 18:41:24 C 21 52 38.19 +38 39 31.6 V 204
2019-12-13 01:43:32 C 19 16 34.80 +05 34 53.5 U I41
2019-12-13 01:50:37 C 19 16 36.24 +05 35 15.9 U I41
2019-12-13 01:57:39 C 19 16 37.66 +05 35 38.3 U I41
2019-12-13 02:04:43 C 19 16 39.10 +05 36 00.4 U I41
2020-12-22 02:00:56 C 19 57 08.42 +10 29 16.9 U I41
2020-12-22 02:08:00 C 19 57 09.77 +10 29 36.7 U I41
2020-12-22 02:11:30 C 19 57 10.43 +10 29 46.7 U I41
2020-12-22 02:15:01 C 19 57 11.12 +10 29 56.8 U I41
2021-01-13 01:40:27 C 21 33 20.84 +29 53 10.2 V G96
2021-01-13 01:47:13 C 21 33 22.03 +29 53 21.3 V G96
2021-01-13 01:53:58 C 21 33 23.23 +29 53 32.6 V G96
2021-01-13 02:00:43 C 21 33 24.44 +29 53 43.6 V G96