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
2021-12-11 08:13:54 s 1 -75016.194 0 +365496.67 620.0 C57
2021-12-11 08:43:54 S 11 24 31.282 +08 27 08.50 V C57
2021-12-11 08:43:54 s 1 -76004.272 0 +364849.34 440.0 C57
2021-12-11 09:33:54 S 11 24 54.074 +08 25 44.11 V C57
2021-12-11 09:33:54 s 1 -77646.999 0 +363750.70 5390.0 C57
2021-12-11 11:33:54 S 11 25 48.998 +08 22 18.12 V C57
2021-12-11 11:33:54 s 1 -81568.025 0 +361012.92 800.0 C57
2021-12-11 11:43:54 S 11 25 53.933 +08 22 00.91 V C57
2021-12-11 11:43:54 s 1 -81893.361 0 +360778.32 3050.0 C57
2021-12-11 11:53:54 S 11 25 57.991 +08 21 43.38 V C57
2021-12-11 11:53:54 s 1 -82218.473 0 +360542.71 4150.0 C57
2021-12-11 12:53:54 S 11 26 25.267 +08 20 01.39 V C57
2021-12-11 12:53:54 s 1 -84164.395 0 +359108.16 6210.0 C57
2021-12-11 13:53:54 S 11 26 52.913 +08 18 22.72 V C57
2021-12-11 13:53:54 s 1 -86101.981 0 +357637.63 5380.0 C57
2021-12-11 14:13:54 S 11 27 01.745 +08 17 47.44 V C57
2021-12-11 14:13:54 s 1 -86745.946 0 +357139.44 5380.0 C57
2021-12-11 14:33:54 S 11 27 11.434 +08 17 09.60 V C57
2021-12-11 14:33:54 s 1 -87388.946 0 +356637.23 450.0 C57
2021-12-11 14:53:54 S 11 27 21.077 +08 16 26.22 V C57
2021-12-11 14:53:54 s 1 -88030.972 0 +356131.00 550.0 C57
2021-12-11 15:03:54 S 11 27 25.222 +08 16 13.01 V C57
2021-12-11 15:03:54 s 1 -88351.617 0 +355876.38 8720.0 C57
2021-12-11 15:33:54 S 11 27 39.120 +08 15 21.53 V C57
2021-12-11 15:33:54 s 1 -89312.061 0 +355106.47 5650.0 C57
2021-12-11 16:13:54 S 11 27 57.434 +08 14 05.35 V C57
2021-12-11 16:13:54 s 1 -90589.135 0 +354065.82 360.0 C57
2021-12-11 16:41:21 S 11 26 23.021 +08 15 33.98 L C51
2021-12-11 16:43:54 S 11 28 11.026 +08 13 13.37 V C57
2021-12-11 16:43:54 s 1 -91544.256 0 +353274.72 290.0 C57
2021-12-11 16:53:54 S 11 28 15.900 +08 12 55.69 V C57
2021-12-11 16:53:54 s 1 -91862.112 0 +353008.99 4310.0 C57
2021-12-11 17:03:54 S 11 28 20.398 +08 12 45.00 V C57
2021-12-11 17:03:54 s 1 -92179.706 0 +352742.26 7020.0 C57
2021-12-11 18:03:54 S 11 28 48.017 +08 10 48.94 V C57
2021-12-11 18:03:54 s 1 -94079.722 0 +351120.54 5260.0 C57
2021-12-11 18:13:54 S 11 28 53.047 +08 10 40.30 V C57
2021-12-11 18:13:54 s 1 -94395.453 0 +350846.70 8580.0 C57
2021-12-11 19:03:54 S 11 29 16.692 +08 09 11.59 V C57
2021-12-11 19:03:54 s 1 -95970.015 0 +349462.23 4640.0 C57
2021-12-11 19:13:54 S 11 29 20.407 +08 08 49.92 V C57
2021-12-11 19:13:54 s 1 -96284.099 0 +349182.27 9700.0 C57
2021-12-11 19:43:54 S 11 29 35.294 +08 07 57.58 V C57
2021-12-11 19:43:54 s 1 -97224.670 0 +348336.28 6480.0 C57
2021-12-11 19:49:29 S 11 27 51.300 +08 10 10.16 L C51
2021-12-11 20:03:54 S 11 29 43.961 +08 07 18.23 V C57
2021-12-11 20:03:54 s 1 -97850.304 0 +347767.18 3930.0 C57
2021-12-11 21:13:54 S 11 30 15.780 +08 05 09.67 V C57
2021-12-11 21:13:54 s 1 -100030.94 6 +345743.01 9830.0 C57
2021-12-11 21:43:54 S 11 30 30.206 +08 04 21.11 V C57