170903 (2004 WS2)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6030417176 ± 3.30e-08
Semi-major axis (a)1.3361479001 AU ± 6.38e-10
Inclination (i)8.26675841° ± 4.17e-06
Long. of Asc. Node (Ω)87.66363220° ± 1.02e-05
Arg. of Perihelion (ω)115.45701591° ± 1.08e-05
Mean Anomaly (M)163.19579838° ± 3.99e-06
Mean Motion (n)0.6381613179°/day ± 4.57e-10
Perihelion dist (q)0.53039498 AU ± 4.41e-08
Aphelion dist (Q)2.14190082 AU ± 4.41e-08
Orbital Period1.54447826 yr ± 1.11e-09
Physical Parameters
H (abs. magnitude)18.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.493″
Uncertainty0
Orbit TypeApollo
MOID0.029970 AU
Observations Used1190
Oppositions8
Arc Total2002-2025
First Observation Used2002-10-28
Last Observation Used2025-11-11
Observations (2130)
Date Type RA Dec Mag Band Observatory
2008-01-30 02:22:50 C 00 21 20.70 +11 37 34.8 r 703
2010-10-10 10:51:43 C 04 25 36.80 +11 47 02.1 r G96
2010-10-10 11:01:44 C 04 25 36.55 +11 47 00.3 r G96
2010-10-10 11:11:38 C 04 25 36.37 +11 46 58.7 r G96
2010-10-10 11:23:29 C 04 25 36.12 +11 46 56.4 r G96
2010-11-04 07:39:44 C 03 56 53.84 +09 29 29.4 19.6 c 704
2010-11-04 07:57:48 C 03 56 52.36 +09 29 24.5 19.9 c 704
2010-11-04 08:15:54 C 03 56 50.83 +09 29 19.2 20.1 c 704
2010-11-04 08:33:58 C 03 56 49.28 +09 29 15.4 20.0 c 704
2010-11-06 09:31:42 C 03 52 50.05 +09 15 36.8 r 703
2010-11-06 09:44:32 C 03 52 48.97 +09 15 32.7 r 703
2010-11-06 09:57:33 C 03 52 47.92 +09 15 28.4 r 703
2010-11-06 10:10:36 C 03 52 46.81 +09 15 25.5 r 703
2010-11-08 08:06:58 C 03 48 50.14 +09 02 27.4 r G96
2010-11-08 08:16:59 C 03 48 49.21 +09 02 24.7 r G96
2010-11-08 08:26:57 C 03 48 48.31 +09 02 21.7 r G96
2010-11-08 08:36:57 C 03 48 47.41 +09 02 18.9 r G96
2010-11-13 23:26:53 C 03 36 10.00 +08 23 58.7 r J75
2010-11-13 23:47:04 C 03 36 07.96 +08 23 54.2 r J75
2010-11-14 00:07:13 C 03 36 05.83 +08 23 47.7 r J75
2010-11-14 08:00:52 C 03 35 18.96 +08 21 36.8 r 703
2010-11-14 08:12:27 C 03 35 17.80 +08 21 33.5 r 703
2010-11-14 08:34:12 C 03 35 15.54 +08 21 27.5 r 703
2010-11-28 06:51:40 C 02 59 56.00 +06 55 39.3 r 703
2010-11-28 07:01:32 C 02 59 54.99 +06 55 37.2 r 703
2010-11-28 07:11:34 C 02 59 53.77 +06 55 35.8 r 703
2010-11-28 07:21:27 C 02 59 52.83 +06 55 33.5 r 703
2010-11-29 19:52:23 C 02 55 59.10 +06 47 56.5 u A13
2010-11-29 20:17:59 C 02 55 56.41 +06 47 52.3 u A13
2010-12-10 03:15:02 C 02 31 15.20 +06 12 15.7 19.3 c 704
2010-12-10 03:34:05 C 02 31 13.38 +06 12 13.8 19.9 c 704
2010-12-10 03:53:46 C 02 31 11.52 +06 12 12.9 20.1 c 704
2010-12-10 04:12:54 C 02 31 09.75 +06 12 11.1 19.8 c 704
2010-12-10 04:32:25 C 02 31 07.94 +06 12 09.3 19.9 c 704
2011-02-01 05:52:38 C 01 54 40.633 +11 02 11.37 L F51
2011-02-01 05:59:38 C 01 54 40.783 +11 02 14.56 L F51
2011-02-01 06:06:59 C 01 54 40.940 +11 02 17.95 L F51
2011-02-01 06:14:02 C 01 54 41.091 +11 02 21.21 L F51
2011-07-05 14:07:48 C 01 26 50.853 -01 45 29.72 L F51
2011-07-05 14:13:31 C 01 26 51.033 -01 45 30.85 L F51
2011-07-05 14:19:12 C 01 26 51.181 -01 45 31.96 L F51
2011-07-05 14:24:55 C 01 26 51.355 -01 45 33.10 L F51
2011-07-26 09:33:56 C 01 34 14.00 -04 20 41.5 L W91
2011-07-26 09:39:56 C 01 34 13.96 -04 20 44.4 L W91
2011-07-26 09:49:54 C 01 34 13.91 -04 20 48.7 L W91
2011-07-26 09:52:16 C 01 34 13.89 -04 20 49.6 L W91
2011-07-26 09:56:13 C 01 34 13.86 -04 20 51.2 L W91
2011-08-03 14:48:11 C 01 31 52.612 -05 57 52.08 L F51
2011-08-03 14:56:25 C 01 31 52.423 -05 57 56.63 L F51
2011-09-17 11:27:37 C 00 18 07.915 -17 50 18.13 L F51