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
2019-01-15 09:27:29 C 08 48 56.454 +40 23 04.87 U F51
2019-01-16 09:41:30 C 08 46 54.463 +40 24 26.29 U F52
2019-01-16 09:58:13 C 08 46 53.021 +40 24 27.20 U F52
2019-01-16 10:14:53 C 08 46 51.583 +40 24 28.10 U F52
2019-01-17 11:53:18 C 08 44 42.54 +40 25 27.1 V T05
2019-01-17 12:04:42 C 08 44 41.54 +40 25 27.4 V T05
2019-01-17 12:19:21 C 08 44 40.27 +40 25 28.2 V T05
2019-01-17 12:21:27 C 08 44 40.12 +40 25 27.7 V T05
2019-01-17 12:28:13 C 08 44 39.51 +40 25 28.1 V T05
2019-01-17 12:30:24 C 08 44 39.27 +40 25 27.9 V T05
2019-01-17 12:42:30 C 08 44 38.32 +40 25 28.4 V T05
2019-01-17 12:56:45 C 08 44 37.03 +40 25 28.6 V T05
2019-01-27 05:43:34 C 08 25 54.81 +40 13 50.1 V 703
2019-01-27 05:51:14 C 08 25 54.22 +40 13 48.7 V 703
2019-01-27 05:58:56 C 08 25 53.68 +40 13 48.6 V 703
2019-01-28 06:44:55 C 08 24 02.25 +40 10 31.8 V G96
2019-01-28 06:59:54 C 08 24 01.11 +40 10 29.0 V G96
2019-01-28 07:07:26 C 08 24 00.52 +40 10 28.9 V G96
2019-02-01 01:58:35 C 08 17 31.74 +39 55 24.9 q I15
2019-02-01 02:08:47 C 08 17 31.07 +39 55 23.2 q I15
2019-02-01 02:18:57 C 08 17 30.31 +39 55 21.3 q I15
2020-03-23 10:59:30 C 11 32 57.490 +05 12 51.52 U F51
2020-03-23 11:16:35 C 11 32 56.878 +05 12 53.80 U F51
2020-03-23 11:33:36 C 11 32 56.282 +05 12 56.42 U F51
2021-04-06 12:02:11 C 13 16 39.949 -14 50 18.16 U F51
2021-04-06 12:17:18 C 13 16 39.364 -14 50 15.82 U F51
2021-04-06 12:32:26 C 13 16 38.800 -14 50 13.42 U F51
2021-04-06 12:47:35 C 13 16 38.210 -14 50 11.48 U F51
2022-06-26 23:44:36 C 18 47 49.039 -56 52 30.50 V M22
2022-06-26 23:48:37 C 18 47 48.691 -56 52 33.60 V M22
2022-06-26 23:55:53 C 18 47 48.156 -56 52 38.75 V M22
2022-06-27 00:10:35 C 18 47 46.961 -56 52 48.50 V M22
2022-06-27 23:35:32 C 18 45 59.532 -57 09 09.76 V M22
2022-06-27 23:40:09 C 18 45 59.153 -57 09 13.25 V M22
2022-06-27 23:47:22 C 18 45 58.574 -57 09 18.00 V M22
2022-06-28 00:05:25 C 18 45 57.041 -57 09 30.38 V M22
2022-06-29 07:55:36 C 18 43 22.133 -57 31 12.50 V W68
2022-06-29 08:00:29 C 18 43 21.698 -57 31 15.60 V W68
2022-06-29 08:10:09 C 18 43 20.851 -57 31 21.79 V W68
2022-06-29 08:27:01 C 18 43 19.373 -57 31 32.38 V W68
2022-06-30 05:29:18 C 18 41 33.290 -57 45 37.19 V W68
2022-06-30 05:33:50 C 18 41 32.866 -57 45 40.10 V W68
2022-06-30 05:41:39 C 18 41 32.167 -57 45 45.22 V W68
2022-06-30 05:58:43 C 18 41 30.562 -57 45 56.34 V W68
2022-07-01 03:58:30 C 18 39 35.196 -58 00 15.98 V W68
2022-07-01 04:01:09 C 18 39 34.934 -58 00 17.68 V W68
2022-07-01 04:20:26 C 18 39 33.132 -58 00 30.67 V W68
2022-07-01 04:28:35 C 18 39 32.323 -58 00 35.71 V W68
2022-07-02 04:54:27 C 18 37 18.070 -58 16 05.59 V W68
2022-07-02 04:58:50 C 18 37 17.640 -58 16 08.08 V W68