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
1997-08-02 14:41:57 C 04 14 21.48 +21 09 42.5 c 566
1997-08-02 15:02:00 C 04 14 25.16 +21 10 09.5 c 566
1998-01-26 08:05:26 C 08 07 39.56 +41 32 55.5 c 566
1998-01-26 08:19:24 C 08 07 38.48 +41 32 53.0 c 566
1998-01-26 08:33:35 C 08 07 37.42 +41 32 50.6 c 566
2001-11-17 01:34:44 C 21 31 10.03 +07 58 38.6 17.0 c 704
2001-11-17 01:57:07 C 21 31 14.61 +07 59 39.8 17.4 c 704
2001-11-17 02:17:42 C 21 31 18.79 +08 00 35.9 17.5 c 704
2001-11-17 02:41:24 C 21 31 23.61 +08 01 40.7 17.2 c 704
2001-11-18 01:47:15 C 21 36 14.23 +09 04 20.8 18.8 c 704
2001-11-18 02:10:17 C 21 36 18.99 +09 05 23.0 18.2 c 704
2001-11-18 02:54:46 C 21 36 28.13 +09 07 22.3 18.2 c 704
2001-11-18 03:17:59 C 21 36 32.91 +09 08 24.9 18.2 c 704
2001-11-19 19:38:52 C 21 45 03.06 +10 56 08.6 938
2001-11-19 20:11:49 C 21 45 09.65 +10 57 35.3 157
2001-11-19 20:21:09 C 21 45 11.60 +10 58 00.1 157
2001-11-19 20:24:58 C 21 45 12.62 +10 58 09.1 938
2001-11-19 20:30:00 C 21 45 13.36 +10 58 23.5 157
2001-11-19 20:35:45 C 21 45 14.71 +10 58 37.5 c 587
2001-11-19 20:39:17 C 21 45 15.41 +10 58 46.0 c 587
2001-11-19 20:44:45 C 21 45 16.55 +10 59 01.1 c 587
2001-11-20 01:39:32 C 21 46 19.54 +11 12 03.2 18.1 d 704
2001-11-20 01:41:39 C 21 46 19.94 +11 12 08.9 18.0 d 704
2001-11-20 02:01:29 C 21 46 24.03 +11 13 01.1 18.2 d 704
2001-11-20 02:03:36 C 21 46 24.45 +11 13 06.4 18.4 d 704
2001-11-20 02:15:18 C 21 46 27.14 +11 13 36.2 c 670
2001-11-20 02:18:52 C 21 46 27.81 +11 13 47.7 c 670
2001-11-20 02:23:32 C 21 46 28.58 +11 13 58.9 18.2 d 704
2001-11-20 02:25:11 C 21 46 28.89 +11 14 03.1 18.2 d 704
2001-11-20 02:46:45 C 21 46 33.36 +11 14 59.8 18.1 d 704
2001-11-20 02:47:30 C 21 46 33.49 +11 15 01.3 18.3 d 704
2001-11-20 03:08:45 C 21 46 38.00 +11 15 57.5 18.2 d 704
2001-11-20 04:13:59 C 21 46 51.35 +11 18 46.3 c 649
2001-11-20 04:15:48 C 21 46 51.74 +11 18 50.9 c 649
2001-11-20 04:17:36 C 21 46 52.13 +11 18 55.7 c 649
2001-11-20 17:34:31 C 21 49 41.71 +11 53 40.7 c 046
2001-11-20 17:43:22 C 21 49 43.53 +11 54 03.3 c 046
2001-11-20 17:44:08 C 21 49 43.71 +11 54 05.5 c 046
2001-11-20 17:44:56 C 21 49 43.84 +11 54 07.6 c 046
2001-11-20 17:45:43 C 21 49 44.06 +11 54 09.9 c 046
2001-11-20 18:55:23 C 21 49 58.54 +11 57 10.9 d 557
2001-11-20 18:56:55 C 21 49 58.77 +11 57 14.0 d 557
2001-11-20 18:58:25 C 21 49 59.18 +11 57 18.6 d 557
2001-11-20 18:59:55 C 21 49 59.48 +11 57 22.8 d 557
2001-11-20 19:01:26 C 21 49 59.80 +11 57 26.8 d 557
2001-11-20 19:02:58 C 21 50 00.10 +11 57 30.3 d 557
2001-11-20 19:04:28 C 21 50 00.40 +11 57 34.2 d 557
2001-11-20 19:05:58 C 21 50 00.69 +11 57 38.4 d 557
2001-11-21 11:13:01 C 21 53 25.65 +12 39 28.4 402
2001-11-21 11:14:55 C 21 53 26.05 +12 39 33.4 402