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
2021-12-13 20:43:54 S 11 52 45.667 +06 35 44.74 – V C57
2021-12-13 20:43:54 s 1 -169477.64 1 +217242.44 7020.0 – C57
2021-12-13 21:13:54 S 11 53 01.752 +06 34 46.24 – V C57
2021-12-13 21:13:54 s 1 -169901.60 4 +215365.62 9450.0 – C57
2021-12-13 21:23:54 S 11 53 05.549 +06 34 34.86 – V C57
2021-12-13 21:23:54 s 1 -170040.81 8 +214737.33 4180.0 – C57
2021-12-13 21:43:54 S 11 53 15.096 +06 33 40.43 – V C57
2021-12-13 21:43:54 s 1 -170316.05 5 +213476.74 9390.0 – C57
2021-12-13 21:53:54 S 11 53 20.059 +06 33 34.63 – V C57
2021-12-13 21:53:54 s 1 -170452.06 7 +212844.42 9830.0 – C57
2021-12-13 22:53:54 S 11 53 49.342 +06 31 23.12 – V C57
2021-12-13 22:53:54 s 1 -171245.32 7 +209022.23 700.0 – C57
2021-12-13 23:53:54 S 11 54 18.163 +06 29 27.64 – V C57
2021-12-13 23:53:54 s 1 -171998.63 2 +205151.26 3570.0 – C57
2021-12-14 01:33:54 S 11 55 06.065 +06 26 10.39 – V C57
2021-12-14 01:33:54 s 1 -173162.06 6 +198590.38 2280.0 – C57
2021-12-14 01:53:54 S 11 55 15.852 +06 25 31.40 – V C57
2021-12-14 01:53:54 s 1 -173380.52 2 +197261.71 4840.0 – C57
2021-12-14 02:03:54 S 11 55 20.510 +06 25 16.46 – V C57
2021-12-14 02:03:54 s 1 -173487.93 2 +196595.31 8060.0 – C57
2021-12-14 02:13:54 S 11 55 25.330 +06 24 48.56 – V C57
2021-12-14 02:13:54 s 1 -173594.12 2 +195927.52 5870.0 – C57
2021-12-14 02:23:54 S 11 55 30.252 +06 24 42.84 – V C57
2021-12-14 02:23:54 s 1 -173699.08 6 +195258.35 8240.0 – C57
2021-12-14 02:33:54 S 11 55 34.898 +06 24 17.14 – V C57
2021-12-14 02:33:54 s 1 -173802.81 7 +194587.79 5150.0 – C57
2021-12-14 04:23:54 S 11 56 28.342 +06 20 31.96 – V C57
2021-12-14 04:23:54 s 1 -174860.68 1 +187119.76 3000.0 – C57
2021-12-14 05:03:54 S 11 56 47.256 +06 19 11.53 – V C57
2021-12-14 05:03:54 s 1 -175206.49 6 +184362.11 4980.0 – C57
2021-12-14 05:43:54 S 11 57 08.290 +06 17 56.00 – V C57
2021-12-14 05:43:54 s 1 -175530.89 3 +181581.93 2440.0 – C57
2021-12-14 06:33:54 S 11 57 31.625 +06 16 05.63 – V C57
2021-12-14 06:33:54 s 1 -175905.57 8 +178074.87 930.0 – C57
2021-12-14 07:43:54 S 11 58 04.726 +06 13 51.17 – V C57
2021-12-14 07:43:54 s 1 -176370.97 2 +173105.25 8340.0 – C57
2021-12-14 07:53:54 S 11 58 11.129 +06 13 32.59 – V C57
2021-12-14 07:53:54 s 1 -176431.69 0 +172389.60 5470.0 – C57
2021-12-14 08:23:54 S 11 58 25.397 +06 12 31.18 – V C57
2021-12-14 08:23:54 s 1 -176605.02 4 +170234.03 8100.0 – C57
2021-12-14 09:03:54 S 11 58 43.663 +06 11 18.49 – V C57
2021-12-14 09:03:54 s 1 -176815.25 4 +167339.84 3250.0 – C57
2021-12-14 10:33:54 S 11 59 28.195 +06 08 18.64 – V C57
2021-12-14 10:33:54 s 1 -177198.42 2 +160743.53 880.0 – C57
2021-12-14 10:53:54 S 11 59 38.774 +06 07 25.82 – V C57
2021-12-14 10:53:54 s 1 -177266.20 5 +159261.75 9860.0 – C57
2021-12-14 11:03:54 S 11 59 43.330 +06 07 15.71 – V C57
2021-12-14 11:03:54 s 1 -177297.67 5 +158518.68 8760.0 – C57
2021-12-14 12:43:54 S 12 00 32.450 +06 03 48.53 – V C57
2021-12-14 12:43:54 s 1 -177521.41 4 +151007.82 250.0 – C57