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
2007-11-21 06:27:13 C 05 09 17.06 +14 22 20.3 r 703
2007-11-21 06:33:23 C 05 09 16.52 +14 22 20.4 r 703
2007-11-30 19:23:15 C 04 44 44.25 +14 08 46.7 o A78
2007-11-30 19:29:33 C 04 44 43.37 +14 08 47.4 o A78
2007-11-30 19:36:10 C 04 44 42.54 +14 08 47.6 o A78
2007-11-30 19:42:28 C 04 44 41.69 +14 08 47.5 o A78
2007-11-30 21:45:11 C 04 44 25.24 +14 08 39.6 r A13
2007-11-30 21:49:07 C 04 44 24.73 +14 08 39.3 r A13
2007-11-30 22:14:06 C 04 44 21.37 +14 08 38.1 r A13
2007-11-30 22:44:32 C 04 44 17.26 +14 08 36.4 r A13
2007-12-03 21:08:37 C 04 34 31.60 +14 04 30.7 c A24
2007-12-03 21:10:04 C 04 34 31.38 +14 04 31.0 c A24
2007-12-03 21:32:11 C 04 34 28.05 +14 04 28.8 c A24
2007-12-03 21:55:45 C 04 34 24.53 +14 04 27.8 c A24
2007-12-03 22:17:52 C 04 34 21.21 +14 04 26.4 c A24
2007-12-03 22:19:19 C 04 34 21.04 +14 04 26.8 c A24
2007-12-04 06:08:27 C 04 33 11.93 +14 04 02.5 17.5 c 704
2007-12-04 06:27:38 C 04 33 09.00 +14 04 01.7 17.9 c 704
2007-12-04 06:46:13 C 04 33 06.19 +14 04 01.1 17.7 c 704
2007-12-04 07:04:36 C 04 33 03.36 +14 03 59.8 17.7 c 704
2007-12-04 07:23:31 C 04 33 00.48 +14 03 58.7 17.8 c 704
2007-12-04 21:41:11 C 04 30 52.70 +14 03 02.4 c A24
2007-12-04 21:42:38 C 04 30 52.43 +14 03 02.8 c A24
2007-12-04 22:00:52 C 04 30 49.63 +14 03 01.5 c A24
2007-12-04 22:20:33 C 04 30 46.55 +14 03 00.5 c A24
2007-12-04 22:40:13 C 04 30 43.47 +14 02 59.5 c A24
2007-12-05 21:02:50 C 04 27 17.66 +14 01 36.9 c A24
2007-12-05 21:04:15 C 04 27 17.42 +14 01 37.8 c A24
2007-12-11 21:04:47 C 04 02 53.61 +13 52 03.0 c B49
2007-12-11 21:42:40 C 04 02 46.52 +13 52 00.7 c B49
2007-12-14 19:28:28 C 03 49 43.44 +13 46 38.5 r A06
2007-12-14 19:40:01 C 03 49 41.19 +13 46 37.9 r A06
2007-12-14 19:52:07 C 03 49 38.78 +13 46 36.5 r A06
2007-12-15 05:02:40 C 03 47 52.33 +13 45 56.0 r 703
2007-12-15 05:12:05 C 03 47 50.49 +13 45 55.6 r 703
2007-12-15 05:21:28 C 03 47 48.66 +13 45 55.8 r 703
2007-12-15 05:30:52 C 03 47 46.75 +13 45 54.5 r 703
2007-12-17 21:34:40 C 03 35 10.69 +13 40 22.0 c A24
2007-12-17 21:35:45 C 03 35 10.49 +13 40 21.8 c A24
2007-12-17 21:51:08 C 03 35 07.31 +13 40 20.5 c A24
2007-12-17 22:07:37 C 03 35 03.96 +13 40 19.0 c A24
2007-12-17 22:23:00 C 03 35 00.77 +13 40 17.5 c A24
2007-12-17 22:24:07 C 03 35 00.60 +13 40 17.1 c A24
2007-12-27 21:33:21 C 02 46 03.06 +13 16 39.8 c A24
2007-12-27 21:34:48 C 02 46 02.71 +13 16 39.2 c A24
2007-12-27 21:49:54 C 02 45 59.61 +13 16 37.7 c A24
2007-12-27 22:06:27 C 02 45 56.15 +13 16 36.0 c A24
2007-12-27 22:21:34 C 02 45 53.01 +13 16 34.1 c A24
2007-12-27 22:23:00 C 02 45 52.69 +13 16 34.4 c A24
2007-12-28 20:20:09 C 02 41 24.53 +13 14 17.9 c A24