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
2018-11-07 05:29:18 S 09 28 14.34 +33 43 28.8 L C51
2018-11-07 07:03:34 S 09 28 19.222 +33 43 36.62 L C51
2018-11-07 10:11:53 S 09 28 28.997 +33 43 53.18 L C51
2018-11-07 13:20:22 S 09 28 38.73 +33 44 09.1 L C51
2018-11-07 16:28:53 S 09 28 48.379 +33 44 25.40 L C51
2018-11-07 19:37:23 S 09 28 58.07 +33 44 43.0 L C51
2018-11-10 10:17:37 C 09 32 00.54 +33 50 52.0 V 703
2018-11-10 10:25:22 C 09 32 00.95 +33 50 51.4 V 703
2018-11-10 10:33:06 C 09 32 01.20 +33 50 52.2 V 703
2018-11-10 10:40:51 C 09 32 01.51 +33 50 52.7 V 703
2018-11-16 09:32:43 C 09 37 41.86 +34 09 42.3 V 703
2018-11-16 09:40:39 C 09 37 42.24 +34 09 43.0 V 703
2018-11-16 09:48:34 C 09 37 42.43 +34 09 44.9 V 703
2018-11-16 09:56:29 C 09 37 42.66 +34 09 46.3 V 703
2018-12-16 09:49:19 C 09 37 09.67 +37 22 40.6 V G96
2018-12-16 09:55:26 C 09 37 09.41 +37 22 42.6 V G96
2018-12-16 10:01:34 C 09 37 09.18 +37 22 44.9 V G96
2018-12-16 10:07:42 C 09 37 08.90 +37 22 47.3 V G96
2018-12-20 06:38:38 C 09 33 15.38 +37 54 28.3 V 703
2018-12-20 07:02:11 C 09 33 14.30 +37 54 38.3 V 703
2018-12-28 13:36:38 C 09 22 04.71 +38 59 13.5 V T05
2018-12-28 14:00:46 C 09 22 03.03 +38 59 21.7 V T05
2018-12-28 14:14:54 C 09 22 02.11 +38 59 26.1 V T05
2018-12-28 14:29:04 C 09 22 01.14 +38 59 30.3 V T05
2019-01-04 06:52:31 C 09 10 38.41 +39 42 34.5 V 703
2019-01-04 07:00:23 C 09 10 37.78 +39 42 36.3 V 703
2019-01-04 07:12:42 C 09 10 36.75 +39 42 38.9 V 703
2019-01-06 12:33:14 C 09 06 27.639 +39 54 17.28 U F51
2019-01-06 12:50:44 C 09 06 26.207 +39 54 20.80 U F51
2019-01-06 13:08:22 C 09 06 24.773 +39 54 24.29 U F51
2019-01-06 13:25:59 C 09 06 23.329 +39 54 27.78 U F51
2019-01-08 07:48:13 C 09 03 00.31 +40 02 27.5 V 703
2019-01-08 07:56:52 C 09 02 59.56 +40 02 29.1 V 703
2019-01-08 08:05:33 C 09 02 58.90 +40 02 30.8 V 703
2019-01-08 08:14:17 C 09 02 58.13 +40 02 31.5 V 703
2019-01-09 10:21:55 C 09 00 50.33 +40 06 55.3 V G96
2019-01-09 10:29:21 C 09 00 49.69 +40 06 56.6 V G96
2019-01-09 10:36:50 C 09 00 49.12 +40 06 56.9 V G96
2019-01-09 10:44:17 C 09 00 48.43 +40 06 58.9 V G96
2019-01-11 08:14:15 C 08 57 03.85 +40 13 35.0 V 703
2019-01-11 08:22:38 C 08 57 03.16 +40 13 36.2 V 703
2019-01-11 08:31:18 C 08 57 02.38 +40 13 37.5 V 703
2019-01-11 08:39:46 C 08 57 01.70 +40 13 38.8 V 703
2019-01-11 12:11:09 C 08 56 44.02 +40 14 07.0 V T08
2019-01-11 12:36:57 C 08 56 41.78 +40 14 10.9 V T08
2019-01-11 12:42:57 C 08 56 41.34 +40 14 11.0 V T08
2019-01-11 13:04:39 C 08 56 39.50 +40 14 13.6 V T08
2019-01-15 08:59:01 C 08 48 58.917 +40 23 02.70 U F51
2019-01-15 09:08:28 C 08 48 58.099 +40 23 03.43 U F51
2019-01-15 09:17:57 C 08 48 57.281 +40 23 04.11 U F51