422787 (2001 WS1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6180125706 ± 3.99e-09
Semi-major axis (a)2.5921214752 AU ± 7.71e-10
Inclination (i)13.23411518° ± 1.88e-06
Long. of Asc. Node (Ω)1.28187721° ± 5.14e-06
Arg. of Perihelion (ω)5.23024977° ± 6.06e-06
Mean Anomaly (M)269.49601696° ± 6.35e-07
Mean Motion (n)0.2361724587°/day ± 1.05e-10
Perihelion dist (q)0.99015782 AU ± 1.04e-08
Aphelion dist (Q)4.19408513 AU ± 1.04e-08
Orbital Period4.17333286 yr ± 1.86e-09
Physical Parameters
H (abs. magnitude)17.03
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.276″
Uncertainty0
Orbit TypeApollo
MOID0.013088 AU
Observations Used1259
Oppositions21
Arc Total1997-2025
First Observation Used1997-08-02
Last Observation Used2025-03-29
Observations (1348)
Date Type RA Dec Mag Band Observatory
2022-12-19 06:51:54 C 02 57 59.801 +58 29 21.80 U I41
2022-12-26 05:21:51 C 03 17 31.433 +55 48 19.62 Z U76
2022-12-26 05:35:07 C 03 17 32.784 +55 48 06.95 Z U76
2022-12-26 05:47:22 C 03 17 34.034 +55 47 55.54 Z U76
2022-12-26 18:09:52 C 03 18 55.680 +55 36 13.57 V G01
2022-12-26 18:12:47 C 03 18 55.985 +55 36 11.16 V G01
2022-12-26 20:20:19 C 03 19 09.175 +55 34 13.19 V G01
2022-12-26 20:22:55 C 03 19 09.449 +55 34 10.81 V G01
2023-01-08 18:24:02 C 03 49 43.848 +51 05 45.71 V G01
2023-01-08 18:27:29 C 03 49 44.148 +51 05 43.01 V G01
2023-01-08 20:36:02 C 03 49 55.445 +51 04 01.06 V G01
2023-01-08 20:38:37 C 03 49 55.682 +51 03 59.22 V G01
2023-01-09 04:42:38 C 03 50 39.757 +50 57 40.28 V G96
2023-01-09 04:50:18 C 03 50 40.416 +50 57 34.27 V G96
2023-01-09 04:57:59 C 03 50 41.050 +50 57 27.76 V G96
2023-01-09 05:05:38 C 03 50 41.741 +50 57 21.96 V G96
2023-01-15 07:20:10 C 04 03 42.266 +49 06 48.74 V T05
2023-01-15 07:24:44 C 04 03 42.679 +49 06 45.36 V T05
2023-01-15 07:33:13 C 04 03 43.423 +49 06 39.53 V T05
2023-01-15 07:47:34 C 04 03 44.606 +49 06 29.27 V T05
2023-01-17 17:57:51 C 04 08 46.781 +48 25 05.23 V G01
2023-01-17 18:00:31 C 04 08 46.997 +48 25 03.58 V G01
2023-01-17 20:18:09 C 04 08 58.476 +48 23 27.60 V G01
2023-01-17 20:20:44 C 04 08 58.654 +48 23 26.66 V G01
2023-01-17 22:45:27 C 04 09 10.726 +48 21 44.03 V G01
2023-01-17 22:48:06 C 04 09 10.946 +48 21 42.23 V G01
2023-01-19 09:05:28 C 04 12 06.646 +47 58 14.27 V T05
2023-01-19 09:11:59 C 04 12 07.176 +47 58 09.80 V T05
2023-01-19 09:22:32 C 04 12 08.040 +47 58 02.39 V T05
2023-01-19 09:40:50 C 04 12 09.499 +47 57 49.72 V T05
2023-01-19 23:26:50 C 04 13 20.045 +47 48 24.52 V G01
2023-01-19 23:29:25 C 04 13 20.227 +47 48 23.40 V G01
2023-01-20 18:21:25 C 04 14 56.861 +47 35 46.36 V G01
2023-01-20 18:29:45 C 04 14 57.564 +47 35 42.79 V G01
2023-01-20 22:45:01 C 04 15 18.533 +47 32 51.22 V G01
2023-01-20 22:47:40 C 04 15 18.869 +47 32 48.88 V G01
2023-01-25 19:51:17 C 04 25 08.10 +46 18 04.3 X K19
2023-01-25 19:55:22 C 04 25 08.47 +46 18 01.7 X K19
2023-01-25 19:59:27 C 04 25 08.85 +46 17 59.3 X K19
2023-02-16 16:22:46 S 05 07 39.70 +41 43 34.9 L C51
2023-02-16 22:37:34 S 05 08 09.48 +41 40 49.9 L C51
2023-02-17 01:44:58 S 05 08 24.30 +41 39 25.8 L C51
2023-02-17 11:06:26 S 05 09 08.98 +41 35 18.0 L C51
2023-02-17 17:21:47 S 05 09 38.75 +41 32 32.6 L C51
2023-02-17 17:21:58 S 05 09 38.83 +41 32 32.2 L C51
2025-03-29 10:49:26 C 13 02 32.705 -11 40 13.30 X F52
2025-03-29 11:24:20 C 13 02 31.440 -11 40 08.08 X F52
2025-03-29 11:41:49 C 13 02 30.808 -11 40 05.69 X F52