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
2007-12-28 20:21:35 C 02 41 24.18 +13 14 17.5 c A24
2007-12-28 20:37:02 C 02 41 20.98 +13 14 16.1 c A24
2007-12-28 20:53:56 C 02 41 17.46 +13 14 14.0 c A24
2007-12-28 21:09:24 C 02 41 14.24 +13 14 12.3 c A24
2007-12-28 21:10:50 C 02 41 13.94 +13 14 12.3 c A24
2007-12-29 04:46:08 C 02 39 41.33 +13 13 30.2 17.7 c 704
2007-12-29 05:04:34 C 02 39 37.50 +13 13 28.1 17.7 c 704
2007-12-29 05:41:31 C 02 39 29.86 +13 13 25.0 18.0 c 704
2007-12-29 20:41:11 C 02 36 28.00 +13 11 46.0 r 130
2007-12-29 20:45:31 C 02 36 27.06 +13 11 46.1 r 130
2007-12-29 20:51:19 C 02 36 25.90 +13 11 45.1 r 130
2007-12-29 20:56:22 C 02 36 24.83 +13 11 44.2 r 130
2007-12-31 02:13:35 C 02 30 32.11 +13 08 49.6 r G96
2007-12-31 02:20:05 C 02 30 30.74 +13 08 49.1 r G96
2007-12-31 02:26:36 C 02 30 29.41 +13 08 48.5 r G96
2007-12-31 02:32:58 C 02 30 28.08 +13 08 47.9 r G96
2008-01-03 03:43:45 C 02 15 59.91 +13 01 31.0 r H45
2008-01-03 03:45:09 C 02 15 59.63 +13 01 30.5 r H45
2008-01-03 03:47:09 C 02 15 59.23 +13 01 30.3 r H45
2008-01-03 03:49:33 C 02 15 58.76 +13 01 30.1 r H45
2008-01-03 03:52:37 C 02 15 58.15 +13 01 29.8 r H45
2008-01-05 17:45:29 C 02 04 06.67 +12 55 34.7 r 084
2008-01-05 17:55:46 C 02 04 04.72 +12 55 33.9 r 084
2008-01-06 19:56:28 C 01 59 11.24 +12 53 19.1 o 046
2008-01-06 19:58:41 C 01 59 10.76 +12 53 19.0 o 046
2008-01-06 19:59:57 C 01 59 10.53 +12 53 18.6 o 046
2008-01-06 20:01:07 C 01 59 10.39 +12 53 18.5 o 046
2008-01-06 20:02:21 C 01 59 10.08 +12 53 18.2 o 046
2008-01-06 20:03:26 C 01 59 09.86 +12 53 18.5 o 046
2008-01-07 20:14:18 C 01 54 40.94 +12 51 11.9 o J66
2008-01-07 20:19:23 C 01 54 39.98 +12 51 11.5 o J66
2008-01-07 20:24:27 C 01 54 39.04 +12 51 11.0 o J66
2008-01-07 20:28:52 C 01 54 38.19 +12 51 10.3 o J66
2008-01-09 03:13:05 C 01 49 00.40 +12 48 43.2 18.1 c 704
2008-01-09 03:31:29 C 01 48 57.07 +12 48 40.7 18.5 c 704
2008-01-09 03:49:55 C 01 48 53.57 +12 48 40.3 18.6 c 704
2008-01-09 04:08:22 C 01 48 50.15 +12 48 38.5 18.8 c 704
2008-01-09 04:26:48 C 01 48 46.64 +12 48 36.4 18.3 c 704
2008-01-11 01:56:15 C 01 40 37.08 +12 44 54.4 w 699
2008-01-11 02:33:02 C 01 40 30.27 +12 44 52.0 w 699
2008-01-11 03:09:46 C 01 40 23.56 +12 44 48.3 w 699
2008-01-11 03:46:30 C 01 40 16.79 +12 44 45.4 w 699
2008-01-20 01:25:17 C 01 03 31.09 +12 25 45.6 r H45
2008-01-20 01:26:58 C 01 03 30.82 +12 25 45.5 r H45
2008-01-20 01:28:30 C 01 03 30.54 +12 25 45.4 r H45
2008-01-20 01:31:32 C 01 03 30.03 +12 25 44.7 r H45
2008-01-20 01:35:17 C 01 03 29.35 +12 25 44.5 r H45
2008-01-30 02:04:34 C 00 21 24.04 +11 37 40.2 r 703
2008-01-30 02:10:39 C 00 21 23.04 +11 37 38.7 r 703
2008-01-30 02:16:43 C 00 21 21.92 +11 37 34.6 r 703