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
2004-12-12 10:21:48 C 11 18 29.38 +09 09 06.9 r H41
2004-12-12 10:24:19 C 11 18 30.69 +09 09 02.3 r H41
2004-12-12 10:27:08 C 11 18 32.04 +09 08 57.8 r H41
2004-12-12 11:46:07 C 11 19 10.68 +09 06 45.1 17.4 c 704
2004-12-12 12:07:05 C 11 19 20.99 +09 06 10.1 17.9 c 704
2004-12-12 12:27:45 C 11 19 31.03 +09 05 34.9 18.0 c 704
2004-12-12 12:48:24 C 11 19 41.07 +09 04 58.6 17.9 c 704
2004-12-14 08:49:11 C 11 42 15.97 +07 44 48.8 r 734
2004-12-14 08:50:16 C 11 42 16.41 +07 44 46.9 r 734
2004-12-14 08:51:23 C 11 42 17.11 +07 44 45.0 r 734
2004-12-14 08:52:28 C 11 42 17.67 +07 44 42.7 r 734
2004-12-14 08:53:34 C 11 42 18.26 +07 44 40.3 r 734
2004-12-15 04:55:38 C 11 53 02.41 +07 04 42.6 o 198
2004-12-15 04:58:22 C 11 53 03.88 +07 04 37.0 o 198
2004-12-15 05:01:05 C 11 53 05.33 +07 04 31.4 o 198
2004-12-15 05:03:49 C 11 53 06.77 +07 04 25.8 o 198
2004-12-15 05:14:42 C 11 53 12.64 +07 04 03.6 o 198
2004-12-15 10:50:29 C 11 56 16.99 +06 52 38.6 17.5 c 704
2004-12-15 11:09:07 C 11 56 27.07 +06 52 00.3 17.8 c 704
2004-12-15 11:25:58 C 11 56 36.29 +06 51 25.8 d 703
2004-12-15 11:27:29 C 11 56 37.01 +06 51 22.3 17.9 c 704
2004-12-15 11:35:24 C 11 56 41.39 +06 51 06.2 d 703
2004-12-15 11:44:39 C 11 56 46.42 +06 50 46.9 d 703
2004-12-15 11:47:52 C 11 56 48.02 +06 50 39.9 18.3 c 704
2004-12-15 11:53:55 C 11 56 51.40 +06 50 27.6 d 703
2004-12-15 12:06:21 C 11 56 57.99 +06 50 01.6 18.1 c 704
2004-12-16 11:49:50 C 12 10 09.25 +05 59 17.9 d 703
2004-12-16 11:59:56 C 12 10 15.04 +05 58 56.0 d 703
2004-12-16 12:10:03 C 12 10 20.58 +05 58 36.0 d 703
2004-12-16 12:20:09 C 12 10 26.28 +05 58 11.8 d 703
2005-08-30 09:00:10 C 02 14 42.62 -00 19 16.0 d 291
2005-08-30 09:08:21 C 02 14 42.34 -00 19 20.4 d 291
2005-08-30 09:16:39 C 02 14 42.15 -00 19 23.8 d 291
2005-09-03 09:31:51 C 02 11 56.449 -00 56 57.50 e 645
2005-09-03 09:36:51 C 02 11 56.287 -00 56 59.46 22.22 e 645
2007-09-10 11:25:19 C 05 00 12.99 +15 52 59.4 o 291
2007-09-10 11:34:59 C 05 00 13.45 +15 53 00.0 o 291
2007-09-10 11:40:28 C 05 00 13.66 +15 52 59.8 o 291
2007-11-03 23:19:23 C 05 30 33.99 +14 52 00.4 d A56
2007-11-03 23:24:37 C 05 30 33.86 +14 51 59.5 d A56
2007-11-03 23:29:50 C 05 30 33.75 +14 51 58.5 d A56
2007-11-08 09:56:34 C 05 27 28.11 +14 43 48.7 r G96
2007-11-08 10:03:55 C 05 27 27.82 +14 43 47.9 r G96
2007-11-08 10:11:04 C 05 27 27.54 +14 43 47.3 r G96
2007-11-08 10:18:13 C 05 27 27.25 +14 43 46.8 r G96
2007-11-12 08:07:32 C 05 23 29.27 +14 36 47.0 19.6 c 704
2007-11-12 08:25:15 C 05 23 28.32 +14 36 45.2 19.8 c 704
2007-11-12 08:43:02 C 05 23 27.49 +14 36 44.1 19.5 c 704
2007-11-21 06:14:43 C 05 09 18.18 +14 22 21.0 r 703
2007-11-21 06:20:51 C 05 09 17.64 +14 22 20.4 r 703