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
2021-12-05 15:03:56 S 10 26 52.351 +11 40 51.06 – V C57
2021-12-05 15:03:56 s 1 +171517.77 0 +210746.44 2800.0 – C57
2021-12-05 15:13:56 S 10 26 55.202 +11 40 43.07 – V C57
2021-12-05 15:13:56 s 1 +171399.40 6 +211385.89 7540.0 – C57
2021-12-05 18:33:56 S 10 28 11.974 +11 37 00.30 – V C57
2021-12-05 18:33:56 s 1 +168801.78 3 +223887.22 2480.0 – C57
2021-12-05 18:53:56 S 10 28 20.434 +11 36 34.88 – V C57
2021-12-05 18:53:56 s 1 +168518.77 1 +225107.51 9310.0 – C57
2021-12-05 19:53:56 S 10 28 42.509 +11 35 21.05 – V C57
2021-12-05 19:53:56 s 1 +167645.48 9 +228736.22 9560.0 – C57
2021-12-05 21:43:56 S 10 29 25.361 +11 33 30.49 – V C57
2021-12-05 21:43:56 s 1 +165952.78 7 +235264.49 5920.0 – C57
2021-12-05 22:13:56 S 10 29 36.691 +11 32 56.18 – V C57
2021-12-05 22:13:56 s 1 +165471.18 4 +237017.23 9020.0 – C57
2021-12-05 22:23:56 S 10 29 40.522 +11 32 40.38 – V C57
2021-12-05 22:23:56 s 1 +165308.79 3 +237598.86 9830.0 – C57
2021-12-05 22:33:56 S 10 29 44.741 +11 32 39.37 – V C57
2021-12-05 22:33:56 s 1 +165145.48 0 +238179.17 7230.0 – C57
2021-12-06 00:23:56 S 10 30 26.650 +11 30 26.50 – V C57
2021-12-06 00:23:56 s 1 +163289.43 3 +244476.77 7790.0 – C57
2021-12-06 00:33:56 S 10 30 30.410 +11 30 27.25 – V C57
2021-12-06 00:33:56 s 1 +163115.38 9 +245041.51 5450.0 – C57
2021-12-06 00:43:56 S 10 30 35.102 +11 30 02.56 – V C57
2021-12-06 00:43:56 s 1 +162940.47 7 +245604.96 9900.0 – C57
2021-12-06 03:03:56 S 10 31 28.793 +11 27 28.73 – V C57
2021-12-06 03:03:56 s 1 +160402.72 3 +253358.99 3490.0 – C57
2021-12-06 03:43:56 S 10 31 43.781 +11 26 43.22 – V C57
2021-12-06 03:43:56 s 1 +159647.99 7 +255528.71 7960.0 – C57
2021-12-06 04:23:56 S 10 32 00.247 +11 25 53.47 – V C57
2021-12-06 04:23:56 s 1 +158880.51 7 +257678.30 5460.0 – C57
2021-12-06 05:43:56 S 10 32 31.236 +11 24 22.64 – V C57
2021-12-06 05:43:56 s 1 +157308.18 7 +261917.42 2940.0 – C57
2021-12-06 06:23:56 S 10 32 45.977 +11 23 38.00 – V C57
2021-12-06 06:23:56 s 1 +156503.76 9 +264007.14 4600.0 – C57
2021-12-06 06:33:56 S 10 32 50.734 +11 23 29.87 – V C57
2021-12-06 06:33:56 s 1 +156300.80 0 +264526.48 5670.0 – C57
2021-12-06 08:03:55 S 10 33 25.526 +11 21 43.85 – V C57
2021-12-06 08:03:55 s 1 +154441.52 6 +269144.29 6210.0 – C57
2021-12-06 08:53:55 S 10 33 44.585 +11 20 46.57 – V C57
2021-12-06 08:53:55 s 1 +153383.36 0 +271667.40 2750.0 – C57
2021-12-06 10:03:55 S 10 34 12.154 +11 19 15.31 – V C57
2021-12-06 10:03:55 s 1 +151872.77 1 +275148.77 1250.0 – C57
2021-12-06 10:53:55 S 10 34 32.045 +11 18 15.91 – V C57
2021-12-06 10:53:55 s 1 +150773.45 2 +277599.27 7360.0 – C57
2021-12-06 12:23:55 S 10 35 07.032 +11 16 33.46 – V C57
2021-12-06 12:23:55 s 1 +148753.24 6 +281934.73 9260.0 – C57
2021-12-06 12:53:55 S 10 35 18.718 +11 15 58.72 – V C57
2021-12-06 12:53:55 s 1 +148068.15 7 +283358.46 3870.0 – C57
2021-12-06 13:43:55 S 10 35 38.731 +11 14 59.28 – V C57
2021-12-06 13:43:55 s 1 +146907.77 5 +285707.60 970.0 – C57