428694 (2008 OS9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6480023155 ± 2.14e-08
Semi-major axis (a)1.6012134794 AU ± 2.68e-09
Inclination (i)19.14094460° ± 4.92e-06
Long. of Asc. Node (Ω)133.37122319° ± 1.89e-06
Arg. of Perihelion (ω)288.35811709° ± 3.37e-06
Mean Anomaly (M)161.11502242° ± 4.95e-06
Mean Motion (n)0.4864502378°/day ± 1.22e-09
Perihelion dist (q)0.56362344 AU ± 3.43e-08
Aphelion dist (Q)2.63880352 AU ± 3.45e-08
Orbital Period2.02616055 yr ± 5.08e-09
Physical Parameters
H (abs. magnitude)19.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.365″
Uncertainty0
Orbit TypeApollo
MOID0.057708 AU
Observations Used726
Oppositions9
Arc Total2008-2025
First Observation Used2008-07-25
Last Observation Used2025-04-25
Observations (785)
Date Type RA Dec Mag Band Observatory
2008-08-01 21:51:10 C 21 43 28.92 -10 01 52.1 o 069
2008-08-01 21:51:52 C 21 43 28.94 -10 01 54.5 o 069
2008-08-01 21:54:55 C 21 43 28.91 -10 02 03.8 o 069
2008-08-01 21:55:37 C 21 43 28.86 -10 02 06.5 o 069
2008-08-01 21:56:19 C 21 43 28.91 -10 02 08.7 o 069
2008-08-01 21:57:02 C 21 43 28.90 -10 02 11.0 o 069
2008-08-01 21:57:44 C 21 43 28.94 -10 02 12.6 o 069
2008-08-01 21:58:26 C 21 43 28.94 -10 02 16.2 o 069
2008-08-01 21:59:10 C 21 43 28.86 -10 02 17.9 o 069
2008-08-01 21:59:51 C 21 43 28.88 -10 02 20.2 o 069
2008-08-01 22:00:33 C 21 43 28.93 -10 02 23.2 o 069
2008-08-01 22:01:17 C 21 43 28.92 -10 02 25.2 o 069
2008-08-01 22:01:58 C 21 43 28.99 -10 02 27.5 o 069
2008-08-01 22:02:41 C 21 43 28.87 -10 02 28.8 o 069
2008-08-01 22:03:24 C 21 43 28.94 -10 02 31.5 o 069
2008-08-01 22:03:29 C 21 43 28.71 -10 02 33.6 o 152
2008-08-01 22:04:05 C 21 43 28.91 -10 02 34.8 o 069
2008-08-01 22:04:48 C 21 43 28.91 -10 02 37.0 o 069
2008-08-01 22:05:31 C 21 43 28.94 -10 02 39.0 o 069
2008-08-01 22:06:14 C 21 43 28.93 -10 02 40.9 o 069
2008-08-01 22:06:55 C 21 43 28.94 -10 02 43.6 o 069
2008-08-01 22:07:39 C 21 43 28.94 -10 02 45.8 o 069
2008-08-01 22:08:21 C 21 43 28.94 -10 02 48.2 o 069
2008-08-01 22:08:49 C 21 43 28.97 -10 02 50.7 o 152
2008-08-01 22:09:20 C 21 43 28.98 -10 02 51.3 o 069
2008-08-01 22:10:01 C 21 43 28.93 -10 02 53.3 o 069
2008-08-01 22:10:44 C 21 43 28.92 -10 02 56.1 o 069
2008-08-01 22:11:27 C 21 43 28.91 -10 02 58.5 o 069
2008-08-01 22:12:08 C 21 43 28.95 -10 03 01.3 o 069
2008-08-01 22:12:51 C 21 43 28.91 -10 03 03.4 o 069
2008-08-01 22:13:34 C 21 43 28.93 -10 03 05.1 o 069
2008-08-01 22:14:17 C 21 43 28.94 -10 03 07.5 o 069
2008-08-01 22:14:58 C 21 43 28.95 -10 03 09.8 o 069
2008-08-01 22:15:41 C 21 43 28.94 -10 03 11.9 o 069
2008-08-01 22:16:24 C 21 43 28.96 -10 03 14.7 o 069
2008-08-01 22:17:43 C 21 43 28.77 -10 03 19.7 o 152
2008-08-01 22:19:12 C 21 43 28.98 -10 03 23.8 o 069
2008-08-01 22:19:56 C 21 43 28.97 -10 03 26.1 o 069
2008-08-01 22:20:38 C 21 43 28.97 -10 03 28.6 o 069
2008-08-01 22:21:20 C 21 43 28.92 -10 03 30.1 o 069
2008-08-01 22:22:03 C 21 43 28.94 -10 03 33.0 o 069
2008-08-01 22:22:46 C 21 43 28.95 -10 03 35.5 o 069
2008-08-01 22:23:46 C 21 43 28.94 -10 03 39.3 o 069
2008-08-01 22:24:29 C 21 43 28.94 -10 03 41.6 o 069
2008-08-01 22:25:11 C 21 43 28.96 -10 03 43.1 o 069
2008-08-01 22:25:27 C 21 43 28.88 -10 03 43.6 o 152
2008-08-01 22:25:53 C 21 43 28.96 -10 03 45.6 o 069
2008-08-01 22:26:36 C 21 43 28.95 -10 03 47.1 o 069
2008-08-01 22:27:19 C 21 43 28.93 -10 03 50.2 o 069
2008-08-01 22:28:00 C 21 43 28.95 -10 03 52.5 o 069