2025 OS9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4680052037 ± 9.68e-05
Semi-major axis (a)2.0955609657 AU ± 4.16e-04
Inclination (i)2.15667120° ± 3.33e-04
Long. of Asc. Node (Ω)296.21073625° ± 6.01e-04
Arg. of Perihelion (ω)40.27524879° ± 6.68e-04
Mean Anomaly (M)28.33932552° ± 8.21e-03
Mean Motion (n)0.3249090631°/day ± 9.67e-05
Perihelion dist (q)1.11482753 AU ± 3.00e-04
Aphelion dist (Q)3.07629440 AU ± 6.43e-04
Orbital Period3.03354506 yr ± 9.03e-04
Physical Parameters
H (abs. magnitude)24.78
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.211″
Uncertainty1
Orbit TypeAmor
MOID0.105821 AU
Observations Used30
Oppositions1
Arc Total2025-2025
First Observation Used2025-07-24
Last Observation Used2025-09-17
Observations (32)
Date Type RA Dec Mag Band Observatory
2025-07-24 11:33:57 C 21 46 56.709 -11 01 13.72 V F51
2025-07-24 12:07:34 C 21 47 01.632 -11 00 21.12 V F51
2025-07-24 12:24:25 C 21 47 04.105 -10 59 54.02 V F51
2025-07-28 12:41:08 C 22 03 15.895 -08 17 41.72 X F52
2025-07-28 13:14:14 C 22 03 21.198 -08 16 42.17 X F52
2025-07-28 14:48:47 C 22 03 36.488 -08 13 50.89 V F51
2025-07-28 14:50:50 C 22 03 36.827 -08 13 46.90 V F51
2025-07-28 14:51:46 C 22 03 36.981 -08 13 45.63 V F51
2025-07-29 07:14:42 C 22 06 33.15 -07 44 17.4 V H21
2025-07-29 07:23:01 C 22 06 34.53 -07 44 02.0 V H21
2025-07-29 07:28:59 C 22 06 35.52 -07 43 51.0 V H21
2025-08-19 07:36:18 C 23 47 32.00 +10 08 54.1 V H21
2025-08-19 07:42:27 C 23 47 33.16 +10 09 06.6 V H21
2025-08-23 06:42:50 C 00 06 20.44 +13 13 41.1 V H21
2025-08-23 07:00:58 C 00 06 23.68 +13 14 14.1 V H21
2025-08-24 07:18:54 C 00 11 00.57 +13 57 54.8 V H21
2025-08-24 07:38:25 C 00 11 03.94 +13 58 29.8 V H21
2025-08-25 08:05:50 C 00 15 37.16 +14 40 51.4 V H21
2025-08-25 08:07:53 C 00 15 37.50 +14 40 55.1 V H21
2025-08-27 09:51:52 C 00 24 39.245 +16 02 15.37 X F52
2025-08-27 10:25:19 C 00 24 44.638 +16 03 08.87 X F52
2025-08-27 10:42:03 C 00 24 47.317 +16 03 35.32 X F52
2025-09-01 07:13:14 C 00 44 02.73 +18 45 25.2 V H21
2025-09-01 07:37:33 C 00 44 06.06 +18 45 55.8 V H21
2025-09-02 05:59:16 C 00 47 31.20 +19 12 34.3 V H21
2025-09-02 06:16:27 C 00 47 33.62 +19 12 55.5 V H21
2025-09-03 06:43:58 C 00 51 08.82 +19 40 32.2 V H21
2025-09-03 07:01:09 C 00 51 11.02 +19 40 50.9 V H21
2025-09-17 10:16:06 C 01 28 03.993 +23 32 02.85 X F52
2025-09-17 10:34:43 C 01 28 05.125 +23 32 09.49 X F52
2025-09-17 10:53:24 C 01 28 06.242 +23 32 15.88 X F52
2025-09-17 11:12:13 C 01 28 07.310 +23 32 22.11 X F52