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
2001-11-21 11:16:49 C 21 53 26.47 +12 39 38.3 402
2001-11-23 20:53:27 C 22 05 42.81 +15 05 03.4 d 946
2001-11-23 20:57:21 C 22 05 43.62 +15 05 12.7 d 946
2001-11-23 20:58:42 C 22 05 43.92 +15 05 15.9 d 946
2001-11-24 17:47:50 C 22 10 11.90 +15 56 13.7 d 946
2001-11-24 17:51:02 C 22 10 12.58 +15 56 21.5 d 946
2001-11-24 17:53:57 C 22 10 13.18 +15 56 28.6 d 946
2001-11-24 17:55:24 C 22 10 13.48 +15 56 32.1 d 946
2001-11-24 19:34:59 C 22 10 34.18 +16 00 31.7 m 104
2001-11-24 19:40:35 C 22 10 35.37 +16 00 45.3 m 104
2001-11-24 19:43:02 C 22 10 35.84 +16 00 51.5 m 104
2001-11-24 19:51:16 C 22 10 37.69 +16 01 11.0 m 104
2001-11-24 19:53:30 C 22 10 38.10 +16 01 16.7 m 104
2001-11-24 19:54:46 C 22 10 38.35 +16 01 19.7 m 104
2001-11-24 19:56:05 C 22 10 38.62 +16 01 22.7 m 104
2001-11-24 19:57:19 C 22 10 38.87 +16 01 26.2 m 104
2001-11-25 01:55:49 C 22 11 56.12 +16 15 55.5 16.7 c 704
2001-11-25 02:19:05 C 22 12 00.95 +16 16 51.4 17.2 c 704
2001-11-25 02:42:07 C 22 12 05.80 +16 17 46.7 17.2 c 704
2001-11-25 03:05:06 C 22 12 10.58 +16 18 41.7 17.0 c 704
2001-11-26 18:29:07 C 22 20 37.79 +17 51 41.8 c 118
2001-11-26 18:32:24 C 22 20 38.53 +17 51 50.1 c 118
2001-11-26 18:37:49 C 22 20 39.64 +17 52 01.7 c 118
2001-11-28 02:04:05 C 22 27 25.41 +19 03 49.9 c 670
2001-11-28 02:46:40 C 22 27 34.30 +19 05 25.4 c 670
2001-11-28 03:49:54 C 22 27 47.60 +19 07 46.0 c 670
2001-12-01 17:10:03 C 22 46 09.80 +22 09 56.1 c 118
2001-12-01 17:12:02 C 22 46 10.14 +22 09 59.6 c 118
2001-12-01 17:17:39 C 22 46 11.33 +22 10 11.7 c 118
2001-12-01 17:36:25 C 22 46 15.37 +22 10 50.5 c 046
2001-12-01 17:37:27 C 22 46 15.55 +22 10 52.3 c 046
2001-12-01 17:38:32 C 22 46 15.78 +22 10 54.2 c 046
2001-12-02 20:59:42 C 22 52 08.10 +23 05 23.4 m 104
2001-12-02 21:07:39 C 22 52 09.81 +23 05 37.5 m 104
2001-12-02 21:10:16 C 22 52 10.24 +23 05 42.4 m 104
2001-12-03 20:05:55 C 22 57 06.14 +23 49 54.4 c 113
2001-12-03 20:07:39 C 22 57 06.49 +23 49 57.3 c 113
2001-12-03 20:09:21 C 22 57 06.84 +23 50 00.2 c 113
2001-12-03 20:11:03 C 22 57 07.22 +23 50 03.7 c 113
2001-12-03 20:21:27 C 22 57 09.41 +23 50 23.4 c 113
2001-12-05 02:14:00 C 23 03 34.57 +24 46 01.1 c 670
2001-12-05 03:05:38 C 23 03 45.38 +24 47 35.1 c 670
2001-12-05 04:39:25 C 23 04 05.09 +24 50 24.1 c 670
2001-12-05 20:35:30 C 23 07 29.93 +25 18 53.2 c 587
2001-12-05 20:46:20 C 23 07 32.14 +25 19 12.9 c 587
2001-12-08 16:32:22 C 23 22 00.57 +27 13 22.8 c 118
2001-12-08 16:37:37 C 23 22 01.65 +27 13 31.6 c 118
2001-12-08 16:38:59 C 23 22 01.94 +27 13 33.5 c 118
2001-12-08 17:01:09 C 23 22 06.72 +27 14 09.0 c 185
2001-12-08 17:11:26 C 23 22 08.91 +27 14 25.8 c 185