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
2021-12-14 13:13:54 S 12 00 46.670 +06 02 36.17 – V C57
2021-12-14 13:13:54 s 1 -177555.42 1 +148726.05 3160.0 – C57
2021-12-14 13:23:54 S 12 00 50.585 +06 02 33.65 – V C57
2021-12-14 13:23:54 s 1 -177563.26 9 +147962.53 8930.0 – C57
2021-12-14 13:33:54 S 12 00 55.620 +06 02 09.71 – V C57
2021-12-14 13:33:54 s 1 -177569.35 7 +147197.54 7020.0 – C57
2021-12-14 14:13:54 S 12 01 15.725 +06 00 44.21 – V C57
2021-12-14 14:13:54 s 1 -177575.89 6 +144122.89 1820.0 – C57
2021-12-14 14:23:54 S 12 01 20.498 +06 00 27.18 – V C57
2021-12-14 14:23:54 s 1 -177573.02 6 +143350.55 910.0 – C57
2021-12-14 15:23:54 S 12 01 49.387 +05 58 33.53 – V C57
2021-12-14 15:23:54 s 1 -177517.15 2 +138685.58 7340.0 – C57
2021-12-14 15:33:54 S 12 01 54.890 +05 58 05.95 – V C57
2021-12-14 15:33:54 s 1 -177501.29 5 +137902.92 9960.0 – C57
2021-12-14 16:33:54 S 12 02 22.846 +05 55 56.14 – V C57
2021-12-14 16:33:54 s 1 -177365.86 8 +133175.95 840.0 – C57
2021-12-14 16:53:54 S 12 02 32.926 +05 55 32.23 – V C57
2021-12-14 16:53:54 s 1 -177305.10 1 +131588.47 30.0 – C57
2021-12-14 17:33:54 S 12 02 52.762 +05 54 04.54 – V C57
2021-12-14 17:33:54 s 1 -177159.56 3 +128395.74 4370.0 – C57
2021-12-14 20:33:54 S 12 04 20.875 +05 47 57.41 – V C57
2021-12-14 20:33:54 s 1 -176088.56 1 +113735.49 9760.0 – C57
2021-12-14 22:13:54 S 12 05 08.616 +05 44 29.58 – V C57
2021-12-14 22:13:54 s 1 -175179.10 2 +105384.26 220.0 – C57
2021-12-14 22:33:54 S 12 05 18.254 +05 44 00.85 – V C57
2021-12-14 22:33:54 s 1 -174968.50 7 +103696.40 2880.0 – C57
2021-12-14 22:43:54 S 12 05 24.206 +05 43 36.12 – V C57
2021-12-14 22:43:54 s 1 -174859.52 0 +102850.28 3370.0 – C57
2021-12-14 22:53:54 S 12 05 27.408 +05 43 21.90 – V C57
2021-12-14 22:53:54 s 1 -174748.05 2 +102002.69 3200.0 – C57
2021-12-14 23:13:54 S 12 05 38.820 +05 42 34.31 – V C57
2021-12-14 23:13:54 s 1 -174517.60 8 +100303.15 630.0 – C57
2021-12-14 23:43:54 S 12 05 53.304 +05 41 33.04 – V C57
2021-12-14 23:43:54 s 1 -174152.92 4 +97742.920 200.0 – C57
2021-12-14 23:53:54 S 12 05 57.430 +05 41 09.31 – V C57
2021-12-14 23:53:54 s 1 -174026.22 4 +96886.608 4700.0 – C57
2021-12-15 00:03:54 S 12 06 03.386 +05 40 43.25 – V C57
2021-12-15 00:03:54 s 1 -173896.92 7 +96028.848 8060.0 – C57
2021-12-15 02:03:54 S 12 07 01.673 +05 36 42.84 – V C57
2021-12-15 02:03:54 s 1 -172136.28 2 +85623.703 3630.0 – C57
2021-12-15 02:23:54 S 12 07 10.164 +05 36 00.94 – V C57
2021-12-15 02:23:54 s 1 -171804.02 8 +83869.602 5360.0 – C57
2021-12-15 02:43:54 S 12 07 19.769 +05 35 31.24 – V C57
2021-12-15 02:43:54 s 1 -171460.27 9 +82109.883 8040.0 – C57
2021-12-15 02:53:54 S 12 07 25.728 +05 34 58.87 – V C57
2021-12-15 02:53:54 s 1 -171284.04 3 +81227.926 770.0 – C57
2021-12-15 03:43:54 S 12 07 49.373 +05 33 30.74 – V C57
2021-12-15 03:43:54 s 1 -170358.44 4 +76797.330 5160.0 – C57
2021-12-15 03:53:54 S 12 07 55.325 +05 33 01.55 – V C57
2021-12-15 03:53:54 s 1 -170164.29 5 +75907.079 1580.0 – C57