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
2002-10-28 05:22:18 C 01 28 52.77 -05 01 01.0 c 644
2002-10-28 06:01:16 C 01 28 49.85 -05 01 12.0 c 644
2002-10-28 06:36:48 C 01 28 47.12 -05 01 21.4 c 644
2004-11-18 08:51:31 C 08 29 04.12 +15 59 57.6 18.5 c 704
2004-11-18 09:09:25 C 08 29 07.05 +15 59 52.4 19.2 c 704
2004-11-18 09:27:16 C 08 29 09.91 +15 59 48.4 19.1 c 704
2004-11-18 09:45:05 C 08 29 12.80 +15 59 44.2 19.0 c 704
2004-11-18 10:03:00 C 08 29 15.69 +15 59 40.2 19.2 c 704
2004-11-19 07:03:40 C 08 32 47.99 +15 54 18.2 c 854
2004-11-19 07:05:04 C 08 32 48.21 +15 54 17.2 c 854
2004-11-19 07:06:27 C 08 32 48.48 +15 54 15.7 c 854
2004-11-19 22:51:34 C 08 35 31.29 +15 50 05.4 c 587
2004-11-19 23:04:01 C 08 35 33.52 +15 50 02.4 c 587
2004-11-20 10:22:56 C 08 37 32.77 +15 46 59.1 18.9 c 704
2004-11-20 10:40:48 C 08 37 35.88 +15 46 54.2 19.0 c 704
2004-11-20 10:59:17 C 08 37 39.13 +15 46 49.0 18.9 c 704
2004-11-20 11:10:03 C 08 37 41.01 +15 46 45.7 18.8 c 704
2004-11-20 11:17:07 C 08 37 42.22 +15 46 44.4 19.2 c 704
2004-11-20 11:28:33 C 08 37 44.19 +15 46 41.7 18.8 c 704
2004-11-20 11:46:30 C 08 37 47.29 +15 46 35.8 18.8 c 704
2004-11-20 12:04:51 C 08 37 50.52 +15 46 30.3 19.0 c 704
2004-11-21 10:27:22 C 08 41 54.30 +15 40 03.5 19.4 c 704
2004-11-21 10:45:23 C 08 41 57.66 +15 39 59.9 18.7 c 704
2004-11-21 11:03:26 C 08 42 00.87 +15 39 54.2 19.1 c 704
2004-11-21 11:21:26 C 08 42 04.14 +15 39 48.9 19.1 c 704
2004-11-21 11:39:27 C 08 42 07.42 +15 39 43.4 19.0 c 704
2004-11-22 10:42:25 C 08 46 28.14 +15 32 41.1 18.7 c 704
2004-11-22 11:00:15 C 08 46 31.58 +15 32 34.5 19.1 c 704
2004-11-22 11:35:53 C 08 46 38.21 +15 32 23.8 18.9 c 704
2004-11-22 11:53:43 C 08 46 41.56 +15 32 18.1 19.2 c 704
2004-11-25 12:24:10 C 09 01 32.04 +15 06 45.7 o H06
2004-11-25 12:29:32 C 09 01 33.24 +15 06 43.3 o H06
2004-11-25 12:34:48 C 09 01 34.32 +15 06 41.8 o H06
2004-11-26 05:05:23 C 09 05 13.59 +14 59 58.3 c 118
2004-11-26 05:07:05 C 09 05 13.91 +14 59 57.8 c 118
2004-11-26 05:08:46 C 09 05 14.28 +14 59 55.9 c 118
2004-11-26 05:10:28 C 09 05 14.71 +14 59 56.0 c 118
2004-11-27 10:02:47 C 09 11 55.83 +14 47 31.8 o H06
2004-11-27 10:06:46 C 09 11 56.79 +14 47 29.9 o H06
2004-11-27 10:10:47 C 09 11 57.74 +14 47 29.1 o H06
2004-12-01 02:02:38 C 09 34 44.32 +14 00 53.6 r J95
2004-12-01 02:14:18 C 09 34 47.58 +14 00 47.2 r J95
2004-12-01 02:25:36 C 09 34 50.78 +14 00 39.6 r J95
2004-12-01 08:49:35 C 09 36 40.21 +13 56 45.1 r 734
2004-12-01 08:51:40 C 09 36 40.90 +13 56 43.1 r 734
2004-12-01 08:55:53 C 09 36 42.11 +13 56 41.1 r 734
2004-12-01 08:57:59 C 09 36 42.78 +13 56 40.2 r 734
2004-12-01 09:31:03 C 09 36 52.22 +13 56 21.1 o H06
2004-12-01 09:34:31 C 09 36 53.22 +13 56 18.6 o H06
2004-12-01 09:37:59 C 09 36 54.25 +13 56 16.2 o H06