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
2021-10-18 03:31:33 C 07 06 15.08 +17 51 28.5 Z C95
2021-10-18 03:55:22 C 07 06 17.21 +17 51 26.5 Z C95
2021-11-01 12:08:23 C 07 42 16.34 +17 11 16.5 V G96
2021-11-01 12:14:33 C 07 42 17.03 +17 11 15.6 V G96
2021-11-01 12:20:44 C 07 42 17.74 +17 11 14.9 V G96
2021-11-01 12:26:55 C 07 42 18.44 +17 11 13.7 V G96
2021-11-07 10:45:17 C 07 59 48.71 +16 47 48.0 V G96
2021-11-07 10:52:41 C 07 59 49.66 +16 47 46.8 V G96
2021-11-07 11:00:05 C 07 59 50.60 +16 47 45.3 V G96
2021-11-07 11:07:30 C 07 59 51.55 +16 47 44.2 V G96
2021-11-08 13:15:32 C 08 03 19.458 +16 42 51.89 U F51
2021-11-08 13:49:09 C 08 03 23.859 +16 42 45.68 U F51
2021-11-08 14:05:56 C 08 03 26.052 +16 42 42.54 U F51
2021-11-13 08:49:06 C 08 19 49.01 +16 18 09.9 V 703
2021-11-13 08:57:18 C 08 19 50.20 +16 18 08.6 V 703
2021-11-13 09:05:30 C 08 19 51.44 +16 18 06.7 V 703
2021-11-13 09:13:43 C 08 19 52.60 +16 18 04.6 V 703
2021-11-16 08:52:16 C 08 31 17.05 +15 59 41.4 V 703
2021-11-16 08:59:58 C 08 31 18.28 +15 59 40.9 V 703
2021-11-16 09:07:40 C 08 31 19.50 +15 59 38.9 V 703
2021-11-16 09:15:22 C 08 31 20.80 +15 59 36.1 V 703
2021-11-17 08:55:33 C 08 35 21.43 +15 52 51.9 V 703
2021-11-17 09:03:23 C 08 35 22.72 +15 52 48.9 V 703
2021-11-17 09:11:13 C 08 35 24.03 +15 52 47.9 V 703
2021-11-17 09:19:04 C 08 35 25.36 +15 52 45.7 V 703
2021-11-17 09:29:41 C 08 35 27.15 +15 52 42.4 V G96
2021-11-17 09:36:59 C 08 35 28.37 +15 52 40.3 V G96
2021-11-17 09:44:18 C 08 35 29.63 +15 52 38.4 V G96
2021-11-17 09:51:37 C 08 35 30.85 +15 52 36.3 V G96
2021-11-18 20:24:19 C 08 41 36.39 +15 42 03.5 V D29
2021-11-18 20:34:00 C 08 41 38.13 +15 42 01.1 V D29
2021-11-18 20:43:42 C 08 41 39.81 +15 41 57.9 V D29
2021-11-19 19:44:11 C 08 45 54.11 +15 34 25.3 V D29
2021-11-19 20:02:58 C 08 45 57.59 +15 34 19.8 V D29
2021-11-23 01:53:55 S 09 02 24.754 +15 08 28.25 V C57
2021-11-23 01:53:55 s 1 +156900.14 7 +260035.20 9130.0 C57
2021-11-23 07:03:55 S 09 03 31.824 +15 06 30.85 V C57
2021-11-23 07:03:55 s 1 +150146.50 5 +275611.53 4150.0 C57
2021-11-23 11:33:55 S 09 04 31.524 +15 04 38.60 V C57
2021-11-23 11:33:55 s 1 +143731.98 6 +288212.54 7440.0 C57
2021-11-23 12:33:55 S 09 04 44.256 +15 04 09.95 V C57
2021-11-23 12:33:55 s 1 +142245.16 1 +290893.27 6120.0 C57
2021-11-23 13:53:55 S 09 05 02.544 +15 03 35.93 V C57
2021-11-23 13:53:55 s 1 +140229.97 9 +294400.88 3720.0 C57
2021-11-23 21:03:55 S 09 06 36.862 +15 00 36.90 V C57
2021-11-23 21:03:55 s 1 +128805.87 7 +311970.29 680.0 C57
2021-11-23 21:33:55 S 09 06 44.191 +15 00 20.92 V C57
2021-11-23 21:33:55 s 1 +127974.28 5 +313116.52 9930.0 C57
2021-11-23 22:23:55 S 09 06 54.468 +15 00 05.40 V C57
2021-11-23 22:23:55 s 1 +126578.98 2 +315004.17 6720.0 C57