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
2025-01-24 02:46:49 C 00 27 08.215 +11 54 35.75 V 703
2025-06-28 14:15:45 C 01 30 18.082 +00 15 34.94 X F51
2025-06-28 14:21:20 C 01 30 18.370 +00 15 34.99 X F51
2025-06-28 14:26:54 C 01 30 18.612 +00 15 35.79 X F51
2025-06-28 14:32:30 C 01 30 18.896 +00 15 36.24 X F51
2025-08-16 12:41:07 C 01 54 22.595 -02 35 09.00 X F52
2025-08-16 13:00:44 C 01 54 22.217 -02 35 16.84 X F52
2025-08-16 13:20:16 C 01 54 21.850 -02 35 24.73 X F52
2025-08-16 13:39:51 C 01 54 21.452 -02 35 32.37 X F52
2025-08-24 12:52:54 C 01 49 29.915 -03 59 19.33 X F51
2025-08-24 13:10:49 C 01 49 29.279 -03 59 27.93 X F51
2025-08-24 13:28:47 C 01 49 28.638 -03 59 36.59 X F51
2025-08-24 13:46:44 C 01 49 28.004 -03 59 45.16 X F51
2025-09-01 13:45:11 C 01 41 28.350 -05 37 50.62 X F52
2025-09-01 14:05:35 C 01 41 27.286 -05 38 01.76 X F52
2025-09-01 14:25:59 C 01 41 26.225 -05 38 12.71 X F52
2025-09-24 07:53:54 C 01 04 05.038 -10 40 42.82 V G96
2025-09-24 08:01:20 C 01 04 04.444 -10 40 47.03 V G96
2025-09-24 08:08:47 C 01 04 03.832 -10 40 50.02 V G96
2025-09-24 08:16:12 C 01 04 03.194 -10 40 54.41 V G96
2025-09-29 09:48:18 C 00 54 02.022 -11 38 50.20 X F52
2025-09-29 10:03:57 C 00 54 00.687 -11 38 57.20 X F52
2025-09-29 10:19:38 C 00 53 59.350 -11 39 04.25 X F52
2025-09-29 10:35:21 C 00 53 58.013 -11 39 11.21 X F52
2025-10-19 08:20:21 C 00 17 42.842 -13 57 27.58 X F51
2025-10-19 08:52:12 C 00 17 40.754 -13 57 31.61 X F51
2025-10-19 09:08:07 C 00 17 39.711 -13 57 33.67 X F51
2025-11-11 06:33:54 C 23 54 09.035 -13 37 06.12 X F51
2025-11-11 07:06:27 C 23 54 08.223 -13 37 00.40 X F51
2025-11-11 07:22:57 C 23 54 07.863 -13 36 57.65 X F51