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
2025-02-27 11:19:00 C 15 07 29.942 +28 44 39.55 V 703
2025-02-27 11:22:18 C 15 07 29.298 +28 44 46.79 V 703
2025-02-27 13:12:40 C 15 07 08.774 +28 48 54.86 V T05
2025-02-27 13:15:16 C 15 07 08.189 +28 49 00.62 V T05
2025-02-27 13:21:58 C 15 07 06.869 +28 49 15.71 V T05
2025-02-27 13:29:48 C 15 07 05.309 +28 49 32.88 V T05
2025-02-28 13:19:45 C 15 02 31.306 +29 40 57.29 V T05
2025-02-28 13:22:22 C 15 02 30.770 +29 41 02.62 V T05
2025-02-28 13:26:56 C 15 02 29.861 +29 41 12.59 V T05
2025-02-28 13:39:05 C 15 02 27.466 +29 41 38.15 V T05
2025-03-01 13:12:50 C 14 57 56.808 +30 29 57.41 V T08
2025-03-01 13:16:08 C 14 57 56.153 +30 30 03.96 V T08
2025-03-01 13:20:05 C 14 57 55.342 +30 30 11.77 V T08
2025-03-01 13:47:47 C 14 57 49.872 +30 31 07.75 V T08
2025-03-03 12:46:09 C 14 48 51.504 +32 00 04.50 V T05
2025-03-03 12:48:46 C 14 48 50.957 +32 00 09.50 V T05
2025-03-03 12:49:25 C 14 48 50.866 +32 00 10.84 V T05
2025-03-03 12:52:01 C 14 48 50.335 +32 00 15.16 V T05
2025-03-03 12:53:19 C 14 48 50.071 +32 00 17.86 V T05
2025-03-03 12:56:35 C 14 48 49.433 +32 00 23.40 V T05
2025-03-03 13:01:51 C 14 48 48.384 +32 00 32.94 V T05
2025-03-03 13:07:57 C 14 48 47.177 +32 00 44.32 V T05
2025-03-04 10:47:51 C 14 44 40.313 +32 38 28.93 V T05
2025-03-04 13:01:39 C 14 44 14.057 +32 42 20.41 V T05
2025-03-04 13:04:16 C 14 44 13.512 +32 42 23.94 V T05
2025-03-04 13:08:49 C 14 44 12.641 +32 42 32.40 V T05
2025-03-05 13:14:07 C 14 39 38.030 +33 22 00.08 V T08
2025-03-05 13:22:16 C 14 39 36.406 +33 22 13.40 V T08
2025-03-05 13:27:42 C 14 39 35.338 +33 22 21.83 V T08
2025-03-05 14:01:33 C 14 39 28.654 +33 23 15.94 V T08
2025-03-06 14:05:21 C 14 34 55.553 +34 00 13.39 V T08
2025-03-06 14:14:46 C 14 34 53.726 +34 00 27.18 V T08
2025-03-06 14:15:26 C 14 34 53.558 +34 00 28.01 V T08
2025-03-06 14:19:24 C 14 34 52.774 +34 00 34.13 V T08
2025-03-06 14:20:03 C 14 34 52.673 +34 00 35.03 V T08
2025-03-06 15:09:00 C 14 34 43.032 +34 01 46.99 V T08
2025-03-06 15:09:40 C 14 34 42.917 +34 01 48.29 V T08
2025-03-08 12:08:03 C 14 26 18.132 +35 04 22.30 V T05
2025-03-08 12:10:39 C 14 26 17.530 +35 04 25.18 V T05
2025-03-08 12:13:54 C 14 26 16.973 +35 04 30.43 V T05
2025-03-08 12:15:13 C 14 26 16.678 +35 04 32.30 V T05
2025-03-08 12:23:02 C 14 26 15.151 +35 04 42.49 V T05
2025-03-08 12:25:57 C 14 26 14.647 +35 04 45.73 V T05
2025-03-08 12:33:47 C 14 26 13.094 +35 04 55.56 V T05
2025-03-10 09:13:47 C 14 17 57.109 +35 59 07.58 V 703
2025-03-10 09:17:06 C 14 17 56.476 +35 59 12.44 V 703
2025-03-10 09:20:25 C 14 17 55.874 +35 59 16.87 V 703
2025-03-10 09:23:44 C 14 17 55.302 +35 59 19.90 V 703
2025-03-11 15:01:41 C 14 12 29.760 +36 31 14.92 V T08
2025-03-11 15:15:05 C 14 12 27.218 +36 31 27.52 V T08