IAA RAS IAA Minor Planet Database

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
2021-12-01 13:23:55 S 09 52 59.477 +13 06 49.90 – V C57
2021-12-01 13:23:55 s 1 -161997.92 8 +78495.513 6490.0 – C57
2021-12-01 13:53:55 S 09 53 08.690 +13 06 24.59 – V C57
2021-12-01 13:53:55 s 1 -161410.98 2 +75728.555 6490.0 – C57
2021-12-01 14:03:55 S 09 53 10.464 +13 06 22.93 – V C57
2021-12-01 14:03:55 s 1 -161208.58 5 +74803.039 2510.0 – C57
2021-12-01 14:53:55 S 09 53 24.809 +13 05 39.84 – V C57
2021-12-01 14:53:55 s 1 -160144.77 9 +70151.709 3110.0 – C57
2021-12-01 15:13:55 S 09 53 31.147 +13 05 25.62 – V C57
2021-12-01 15:13:55 s 1 -159694.56 2 +68280.203 1580.0 – C57
2021-12-01 16:03:55 S 09 53 45.838 +13 04 49.55 – V C57
2021-12-01 16:03:55 s 1 -158505.29 3 +63574.448 5500.0 – C57
2021-12-01 16:13:55 S 09 53 48.461 +13 04 37.34 – V C57
2021-12-01 16:13:55 s 1 -158256.27 9 +62628.728 3280.0 – C57
2021-12-01 16:33:55 S 09 53 54.655 +13 04 20.10 – V C57
2021-12-01 16:33:55 s 1 -157746.85 0 +60732.781 2860.0 – C57
2021-12-01 16:53:55 S 09 54 00.022 +13 04 01.02 – V C57
2021-12-01 16:53:55 s 1 -157222.01 3 +58830.882 360.0 – C57
2021-12-01 17:23:55 S 09 54 08.827 +13 03 37.51 – V C57
2021-12-01 17:23:55 s 1 -156405.31 1 +55967.030 3060.0 – C57
2021-12-01 19:13:55 S 09 54 40.901 +13 02 08.16 – V C57
2021-12-01 19:13:55 s 1 -153094.79 8 +45357.546 9360.0 – C57
2021-12-01 19:23:55 S 09 54 44.182 +13 02 01.18 – V C57
2021-12-01 19:23:55 s 1 -152768.18 2 +44384.934 5090.0 – C57
2021-12-01 19:33:55 S 09 54 46.613 +13 01 54.01 – V C57
2021-12-01 19:33:55 s 1 -152437.13 3 +43411.028 3050.0 – C57
2021-12-01 19:53:55 S 09 54 52.538 +13 01 34.10 – V C57
2021-12-01 19:53:55 s 1 -151761.58 1 +41459.391 5030.0 – C57
2021-12-01 20:03:55 S 09 54 55.018 +13 01 23.34 – V C57
2021-12-01 20:03:55 s 1 -151417.00 4 +40481.692 8770.0 – C57
2021-12-01 20:43:55 S 09 55 06.845 +13 00 53.28 – V C57
2021-12-01 20:43:55 s 1 -149992.43 7 +36558.737 8520.0 – C57
2021-12-01 21:13:55 S 09 55 15.941 +13 00 28.55 – V C57
2021-12-01 21:13:55 s 1 -148874.32 4 +33604.247 2040.0 – C57
2021-12-01 21:23:55 S 09 55 18.960 +13 00 19.26 – V C57
2021-12-01 21:23:55 s 1 -148491.93 7 +32617.178 4510.0 – C57
2021-12-01 21:33:55 S 09 55 22.262 +13 00 14.72 – V C57
2021-12-01 21:33:55 s 1 -148104.63 9 +31629.025 7360.0 – C57
2021-12-05 01:53:56 S 10 21 52.843 +11 54 43.16 – V C57
2021-12-05 01:53:56 s 1 +176743.66 2 +155719.78 5960.0 – C57
2021-12-05 07:03:56 S 10 23 50.057 +11 49 18.88 – V C57
2021-12-05 07:03:56 s 1 +175749.81 9 +178395.48 2390.0 – C57
2021-12-05 07:23:56 S 10 23 57.283 +11 48 49.54 – V C57
2021-12-05 07:23:56 s 1 +175634.94 8 +179809.53 9260.0 – C57
2021-12-05 10:13:56 S 10 25 02.232 +11 46 04.62 – V C57
2021-12-05 10:13:56 s 1 +174431.87 0 +191594.21 4310.0 – C57
2021-12-05 13:43:56 S 10 26 21.691 +11 42 06.98 – V C57
2021-12-05 13:43:56 s 1 +172423.28 3 +205580.98 90.0 – C57
2021-12-05 14:43:56 S 10 26 44.186 +11 41 05.53 – V C57
2021-12-05 14:43:56 s 1 +171751.08 3 +209463.41 560.0 – C57