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
2021-11-25 21:43:55 S 09 17 42.955 +14 37 11.78 V C57
2021-11-25 21:43:55 s 1 +34455.135 0 +378315.78 110.0 C57
2021-11-25 22:53:55 S 09 17 59.438 +14 36 42.59 V C57
2021-11-25 22:53:55 s 1 +31993.191 0 +378834.43 9020.0 C57
2021-11-26 05:03:55 S 09 19 27.962 +14 33 14.58 V C57
2021-11-26 05:03:55 s 1 +18922.494 0 +380767.17 4460.0 C57
2021-11-26 05:33:55 S 09 19 34.363 +14 33 04.03 V C57
2021-11-26 05:33:55 s 1 +17859.364 0 +380864.35 7350.0 C57
2021-11-26 07:23:55 S 09 20 00.571 +14 32 05.57 V C57
2021-11-26 07:23:55 s 1 +13958.169 0 +381144.34 7520.0 C57
2021-11-26 08:23:55 S 09 20 15.317 +14 31 34.14 V C57
2021-11-26 08:23:55 s 1 +11828.546 0 +381246.52 1540.0 C57
2021-11-26 08:53:55 S 09 20 22.560 +14 31 12.65 V C57
2021-11-26 08:53:55 s 1 +10763.369 0 +381284.22 2810.0 C57
2021-11-26 10:03:55 S 09 20 39.307 +14 30 34.38 V C57
2021-11-26 15:13:55 S 09 21 53.374 +14 27 47.02 V C57
2021-11-26 15:33:55 S 09 21 57.912 +14 27 37.87 V C57
2021-11-26 18:13:55 S 09 22 37.219 +14 26 06.68 V C57
2021-11-26 18:33:55 S 09 22 41.448 +14 25 56.42 V C57
2021-11-26 19:53:55 S 09 23 01.152 +14 25 07.61 V C57
2021-11-26 19:53:55 s 1 -12676.643 0 +379858.62 2940.0 C57
2021-11-26 20:33:55 S 09 23 10.798 +14 24 41.94 V C57
2021-11-26 20:33:55 s 1 -14094.637 0 +379632.86 1430.0 C57
2021-11-26 22:33:55 S 09 23 40.010 +14 23 37.86 V C57
2021-11-26 22:33:55 s 1 -18344.260 0 +378859.82 4420.0 C57
2021-11-27 00:23:55 S 09 24 06.713 +14 22 35.51 V C57
2021-11-27 00:23:55 s 1 -22232.909 0 +378024.81 5920.0 C57
2021-11-27 02:43:55 S 09 24 41.194 +14 21 14.18 V C57
2021-11-27 02:43:55 s 1 -27170.543 0 +376786.78 4390.0 C57
2021-11-27 03:23:55 S 09 24 51.202 +14 20 45.13 V C57
2021-11-27 03:23:55 s 1 -28578.577 0 +376396.93 7500.0 C57
2021-11-27 09:03:55 S 09 26 15.120 +14 17 33.04 V C57
2021-11-27 09:03:55 s 1 -40486.927 0 +372431.78 4280.0 C57
2021-11-28 02:43:55 S 09 30 40.118 +14 06 35.53 V C57
2021-11-28 02:43:55 s 1 -76547.701 0 +352461.10 1180.0 C57
2021-11-28 03:53:55 S 09 30 57.794 +14 05 48.95 V C57
2021-11-28 03:53:55 s 1 -78850.294 0 +350727.93 3100.0 C57
2021-11-28 05:33:55 S 09 31 23.510 +14 04 47.82 V C57
2021-11-28 05:33:55 s 1 -82118.467 0 +348160.97 4660.0 C57
2021-11-28 10:03:55 S 09 32 32.707 +14 01 54.91 V C57
2021-11-28 10:03:55 s 1 -90807.699 0 +340690.47 2500.0 C57
2021-11-28 11:23:55 S 09 32 52.982 +14 01 05.02 V C57
2021-11-28 11:23:55 s 1 -93341.516 0 +338324.22 3130.0 C57
2021-11-28 11:42:22 C 09 32 09.44 +13 59 24.4 V 703
2021-11-28 11:59:49 C 09 32 13.95 +13 59 14.3 V 703
2021-11-28 12:08:32 C 09 32 16.26 +13 59 09.2 V 703
2021-11-28 13:33:55 S 09 33 27.012 +13 59 46.61 V C57
2021-11-28 13:33:55 s 1 -97415.977 0 +334328.46 250.0 C57
2021-11-28 19:03:55 S 09 34 52.428 +13 55 56.82 V C57
2021-11-28 19:03:55 s 1 -107498.09 2 +323336.60 4220.0 C57