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
2021-12-06 15:13:55 S 10 36 13.529 +11 13 15.56 – V C57
2021-12-06 15:13:55 s 1 +144791.64 2 +289862.03 4090.0 – C57
2021-12-06 15:43:55 S 10 36 25.790 +11 12 34.88 – V C57
2021-12-06 15:43:55 s 1 +144075.50 8 +291225.80 6130.0 – C57
2021-12-06 16:13:55 S 10 36 37.476 +11 12 05.04 – V C57
2021-12-06 16:13:55 s 1 +143354.10 6 +292579.09 9110.0 – C57
2021-12-06 17:13:55 S 10 37 00.986 +11 10 48.65 – V C57
2021-12-06 17:13:55 s 1 +141895.76 4 +295254.41 8870.0 – C57
2021-12-06 19:03:55 S 10 37 44.647 +11 08 33.90 – V C57
2021-12-06 19:03:55 s 1 +139169.79 5 +300051.55 4510.0 – C57
2021-12-06 20:33:55 S 10 38 19.906 +11 06 41.29 – V C57
2021-12-06 20:33:55 s 1 +136890.85 4 +303873.77 9620.0 – C57
2021-12-06 21:23:55 S 10 38 39.648 +11 05 38.72 – V C57
2021-12-06 21:23:55 s 1 +135606.51 6 +305957.61 5780.0 – C57
2021-12-07 00:23:55 S 10 39 51.415 +11 02 00.17 – V C57
2021-12-07 00:23:55 s 1 +130879.55 1 +313227.37 210.0 – C57
2021-12-07 00:53:55 S 10 40 03.948 +11 01 29.93 – V C57
2021-12-07 00:53:55 s 1 +130076.55 0 +314403.97 150.0 – C57
2021-12-07 01:43:55 S 10 40 23.662 +11 00 20.23 – V C57
2021-12-07 01:43:55 s 1 +128728.91 9 +316342.89 340.0 – C57
2021-12-07 02:23:55 S 10 40 39.818 +10 59 29.83 – V C57
2021-12-07 02:23:55 s 1 +127642.58 5 +317874.23 1270.0 – C57
2021-12-07 03:33:55 S 10 41 07.565 +10 58 00.23 – V C57
2021-12-07 03:33:55 s 1 +125724.28 5 +320511.92 9390.0 – C57
2021-12-07 04:33:55 S 10 41 31.154 +10 56 55.61 – V C57
2021-12-07 04:33:55 s 1 +124062.98 9 +322730.31 3260.0 – C57
2021-12-07 05:13:55 S 10 41 47.748 +10 55 57.40 – V C57
2021-12-07 05:13:55 s 1 +122946.92 3 +324187.55 9070.0 – C57
2021-12-07 05:23:55 S 10 41 51.523 +10 55 53.04 – V C57
2021-12-07 05:23:55 s 1 +122666.85 6 +324549.16 1820.0 – C57
2021-12-07 07:03:55 S 10 42 31.500 +10 53 44.23 – V C57
2021-12-07 07:03:55 s 1 +119843.54 0 +328106.00 9760.0 – C57
2021-12-07 08:13:55 S 10 42 59.976 +10 52 17.15 – V C57
2021-12-07 08:13:55 s 1 +117843.32 3 +330532.03 9580.0 – C57
2021-12-07 09:33:55 S 10 43 32.059 +10 50 34.15 – V C57
2021-12-07 09:33:55 s 1 +115534.08 7 +333240.75 980.0 – C57
2021-12-07 09:43:55 S 10 43 36.415 +10 50 16.87 – V C57
2021-12-07 09:43:55 s 1 +115243.72 5 +333574.56 7710.0 – C57
2021-12-07 11:03:55 S 10 44 08.369 +10 48 33.44 – V C57
2021-12-07 11:03:55 s 1 +112907.49 7 +336207.09 5270.0 – C57
2021-12-07 14:43:55 S 10 45 37.056 +10 43 53.90 – V C57
2021-12-07 14:43:55 s 1 +106365.80 9 +343100.66 1880.0 – C57
2021-12-07 15:33:55 S 10 45 57.598 +10 42 50.33 – V C57
2021-12-07 15:33:55 s 1 +104856.27 8 +344597.22 6620.0 – C57
2021-12-07 18:33:55 S 10 47 10.956 +10 38 49.60 – V C57
2021-12-07 18:33:55 s 1 +99356.478 0 +349771.77 9190.0 – C57
2021-12-07 19:13:55 S 10 47 27.514 +10 37 55.88 – V C57
2021-12-07 19:13:55 s 1 +98120.917 0 +350876.64 2370.0 – C57
2021-12-07 20:23:55 S 10 47 55.752 +10 36 21.42 – V C57
2021-12-07 20:23:55 s 1 +95947.467 0 +352771.02 7830.0 – C57