2021 WS1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1415709698 ± 1.11e-04
Semi-major axis (a)1.1363559724 AU ± 1.37e-04
Inclination (i)7.55023191° ± 5.13e-03
Long. of Asc. Node (Ω)69.44079154° ± 1.38e-03
Arg. of Perihelion (ω)290.94359115° ± 2.00e-03
Mean Anomaly (M)152.72806764° ± 2.25e-01
Mean Motion (n)0.8136557125°/day ± 1.47e-04
Perihelion dist (q)0.97548096 AU ± 1.73e-04
Aphelion dist (Q)1.29723099 AU ± 2.01e-04
Orbital Period1.21135545 yr ± 2.19e-04
Physical Parameters
H (abs. magnitude)25.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.277″
Uncertainty3
Orbit TypeApollo
MOID0.051339 AU
Observations Used29
Oppositions1
Arc Total2021-2021
First Observation Used2021-11-26
Last Observation Used2021-12-08
Observations (30)
Date Type RA Dec Mag Band Observatory
2021-11-26 06:26:07 C 02 37 47.951 -00 32 04.61 U F51
2021-11-26 06:44:42 C 02 37 47.542 -00 30 02.12 U F51
2021-11-26 07:03:19 C 02 37 47.132 -00 28 00.27 U F51
2021-11-26 07:21:59 C 02 37 46.678 -00 25 58.47 U F51
2021-11-26 09:47:58 C 02 37 42.868 -00 10 07.26 V F51
2021-11-26 09:48:53 C 02 37 42.849 -00 10 01.14 V F51
2021-11-27 04:07:44 C 02 37 54.57 +01 48 30.7 V 807
2021-11-27 04:09:43 C 02 37 54.52 +01 48 43.3 V 807
2021-11-27 04:11:42 C 02 37 54.49 +01 48 56.2 V 807
2021-11-27 07:16:25 C 02 38 01.860 +02 06 13.42 U F51
2021-11-27 07:28:46 C 02 38 01.590 +02 07 29.41 U F51
2021-11-28 00:17:47 C 02 38 07.65 +03 48 43.3 V 033
2021-11-28 00:20:27 C 02 38 07.66 +03 48 59.4 V 033
2021-11-28 04:04:37 C 02 38 16.31 +04 11 36.8 X 858
2021-11-28 04:14:40 C 02 38 16.17 +04 12 36.2 X 858
2021-11-28 05:05:55 C 02 38 16.69 +04 17 39.5 V 654
2021-11-28 06:37:32 C 02 38 15.11 +04 26 38.2 V 654
2021-11-28 08:12:14 C 02 38 13.70 +04 35 51.6 V 654
2021-12-01 02:17:14 C 02 39 20.67 +10 34 17.1 V 807
2021-12-01 02:22:33 C 02 39 20.62 +10 34 43.5 V 807
2021-12-01 02:27:53 C 02 39 20.56 +10 35 09.6 V 807
2021-12-04 08:21:28 C 02 40 56.40 +16 21 32.7 o 291
2021-12-04 08:28:24 C 02 40 56.49 +16 21 59.9 o 291
2021-12-04 08:35:19 C 02 40 56.47 +16 22 27.0 o 291
2021-12-05 04:08:36 C 02 41 33.08 +17 39 10.2 o 691
2021-12-05 04:28:36 C 02 41 33.12 +17 40 26.4 o 691
2021-12-05 04:48:36 C 02 41 33.12 +17 41 43.1 o 691
2021-12-08 06:55:17 C 02 43 43.45 +21 57 16.8 o 291
2021-12-08 07:06:55 C 02 43 43.58 +21 57 52.0 o 291
2021-12-08 07:18:29 C 02 43 43.77 +21 58 27.1 o 291