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
2001-12-08 17:24:30 C 23 22 11.54 +27 14 46.2 c 185
2001-12-08 17:29:11 C 23 22 12.55 +27 14 53.6 c 185
2001-12-08 18:22:27 C 23 22 23.70 +27 16 18.3 c 198
2001-12-08 18:29:17 C 23 22 25.10 +27 16 28.9 c 198
2001-12-08 18:41:05 C 23 22 27.58 +27 16 47.7 c 198
2001-12-08 18:53:09 C 23 22 30.11 +27 17 06.8 c 198
2001-12-08 18:59:26 C 23 22 31.37 +27 17 16.6 c 198
2001-12-10 01:42:51 C 23 29 02.51 +28 05 05.0 18.3 c 704
2001-12-10 02:06:49 C 23 29 07.51 +28 05 41.3 18.4 c 704
2001-12-10 03:19:03 C 23 29 22.51 +28 07 29.7 18.6 c 704
2001-12-17 16:49:20 C 00 07 11.53 +32 02 39.4 c 104
2001-12-17 16:53:19 C 00 07 12.28 +32 02 44.0 c 104
2001-12-17 16:56:20 C 00 07 12.94 +32 02 47.5 c 104
2001-12-18 02:45:51 C 00 09 12.52 +32 13 28.5 c 735
2001-12-18 02:52:20 C 00 09 13.83 +32 13 35.1 c 735
2001-12-18 03:00:25 C 00 09 15.42 +32 13 43.7 c 735
2001-12-20 02:26:55 C 00 18 52.27 +33 02 12.4 c 715
2001-12-20 02:30:59 C 00 18 53.07 +33 02 16.3 c 715
2001-12-20 02:35:02 C 00 18 53.86 +33 02 20.3 c 715
2001-12-22 03:18:25 C 00 28 38.20 +33 47 33.4 17.7 c 704
2001-12-22 03:39:56 C 00 28 42.34 +33 47 51.6 18.0 c 704
2001-12-22 04:01:30 C 00 28 46.56 +33 48 10.3 18.1 c 704
2001-12-22 04:23:02 C 00 28 50.77 +33 48 28.7 17.9 c 704
2001-12-22 04:44:36 C 00 28 54.96 +33 48 46.9 17.3 c 704
2001-12-23 01:30:19 C 00 33 02.06 +34 06 41.8 18.3 c 704
2001-12-23 01:52:17 C 00 33 06.30 +34 07 00.2 18.7 c 704
2001-12-23 02:14:14 C 00 33 10.55 +34 07 18.3 18.6 c 704
2001-12-23 02:36:08 C 00 33 14.76 +34 07 36.4 18.4 c 704
2001-12-23 02:58:08 C 00 33 19.01 +34 07 54.2 18.4 c 704
2001-12-31 04:38:39 C 01 10 14.87 +36 19 40.1 c 649
2001-12-31 04:48:43 C 01 10 16.75 +36 19 45.1 c 649
2002-01-03 20:14:59 C 01 26 07.02 +37 01 46.0 m 611
2002-01-03 20:18:15 C 01 26 07.58 +37 01 48.1 m 611
2002-01-03 20:21:08 C 01 26 08.03 +37 01 48.5 m 611
2002-01-03 20:24:00 C 01 26 08.55 +37 01 50.6 m 611
2002-01-05 19:11:47 C 01 34 23.92 +37 20 35.4 c 113
2002-01-05 19:24:27 C 01 34 26.04 +37 20 39.9 c 113
2002-01-05 19:27:16 C 01 34 26.43 +37 20 41.4 c 113
2002-01-05 19:30:00 C 01 34 27.01 +37 20 41.7 c 113
2002-01-07 03:29:02 C 01 40 00.04 +37 32 12.0 18.6 c 704
2002-01-07 03:50:39 C 01 40 03.72 +37 32 19.1 18.4 c 704
2002-01-07 04:12:19 C 01 40 07.39 +37 32 26.5 18.3 c 704
2002-01-07 04:34:21 C 01 40 11.12 +37 32 32.8 18.3 c 704
2002-01-07 04:56:01 C 01 40 14.83 +37 32 40.3 18.6 c 704
2002-02-06 21:47:57 C 03 30 29.65 +38 44 14.5 c 966
2002-02-06 22:15:30 C 03 30 33.24 +38 44 12.6 c 966
2002-03-11 03:11:19 C 05 00 27.74 +37 09 01.4 c 696
2002-03-11 03:17:05 C 05 00 28.31 +37 09 00.7 c 696
2003-03-26 06:26:38 C 10 58 37.10 +11 13 21.3 c 696
2003-03-26 06:52:48 C 10 58 36.21 +11 13 24.2 c 696