2329 Orthos (1976 WA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6533456164 ± 5.97e-09
Semi-major axis (a)2.4113099256 AU ± 1.95e-09
Inclination (i)24.46389629° ± 2.94e-07
Long. of Asc. Node (Ω)169.24806462° ± 7.20e-07
Arg. of Perihelion (ω)146.10872860° ± 9.78e-07
Mean Anomaly (M)71.29202635° ± 1.34e-06
Mean Motion (n)0.2632283887°/day ± 3.20e-10
Perihelion dist (q)0.83589116 AU ± 1.44e-08
Aphelion dist (Q)3.98672870 AU ± 1.48e-08
Orbital Period3.74437684 yr ± 4.55e-09
Physical Parameters
H (abs. magnitude)14.57
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.022″
Uncertainty0
Orbit TypeApollo
MOID0.094617 AU
Observations Used1705
Gaia Obs Used109
Oppositions30
Arc Total1976-2026
First Observation Used1976-05-31
Last Observation Used2026-03-04
Observations (1882)
Date Type RA Dec Mag Band Observatory
2017-07-07 02:18:28 C 12 38 58.32 +29 16 00.1 u H21
2017-07-07 02:20:32 C 12 38 58.42 +29 15 59.6 u H21
2017-07-07 02:22:36 C 12 38 58.52 +29 15 59.1 u H21
2017-07-07 02:24:40 C 12 38 58.60 +29 15 58.6 u H21
2017-07-07 02:26:44 C 12 38 58.71 +29 15 58.3 u H21
2017-07-07 02:28:48 C 12 38 58.81 +29 15 57.8 u H21
2017-07-07 02:30:52 C 12 38 58.89 +29 15 57.0 u H21
2017-07-07 02:32:55 C 12 38 59.01 +29 15 56.8 u H21
2017-07-07 02:34:59 C 12 38 59.10 +29 15 56.3 u H21
2017-07-07 02:37:02 C 12 38 59.22 +29 15 55.4 u H21
2017-07-07 02:39:05 C 12 38 59.30 +29 15 55.0 u H21
2017-07-07 02:41:08 C 12 38 59.40 +29 15 54.7 u H21
2017-07-07 02:43:11 C 12 38 59.50 +29 15 54.2 u H21
2017-07-07 02:45:26 C 12 38 59.63 +29 15 53.6 u H21
2017-07-08 06:56:35 C 12 40 26.20 +29 08 54.9 L T05
2017-07-08 07:08:59 C 12 40 26.84 +29 08 51.5 L T05
2017-07-08 07:21:17 C 12 40 27.43 +29 08 48.1 L T05
2017-07-08 07:33:33 C 12 40 28.04 +29 08 45.1 L T05
2017-07-09 22:50:38 C 12 42 33.16 +28 58 28.5 o Z22
2017-07-09 22:52:20 C 12 42 33.24 +28 58 27.8 o Z22
2017-07-09 22:53:55 C 12 42 33.43 +28 58 28.4 o Z22
2017-07-09 23:34:52 C 12 42 35.58 +28 58 16.7 o Z22
2017-07-09 23:36:25 C 12 42 35.59 +28 58 15.8 o Z22
2017-07-09 23:38:11 C 12 42 35.70 +28 58 15.3 o Z22
2017-07-10 02:15:31 C 12 42 44.45 +28 57 33.8 q W33
2017-07-10 02:27:08 C 12 42 45.08 +28 57 30.3 u H21
2017-07-10 02:29:12 C 12 42 45.20 +28 57 29.4 u H21
2017-07-10 02:30:33 C 12 42 45.20 +28 57 29.6 q W33
2017-07-10 02:31:16 C 12 42 45.30 +28 57 29.0 u H21
2017-07-10 02:33:20 C 12 42 45.42 +28 57 28.5 u H21
2017-07-10 02:35:24 C 12 42 45.53 +28 57 28.0 u H21
2017-07-10 02:37:28 C 12 42 45.64 +28 57 27.3 u H21
2017-07-10 02:39:32 C 12 42 45.74 +28 57 26.7 u H21
2017-07-10 02:41:36 C 12 42 45.85 +28 57 26.1 u H21
2017-07-10 02:43:39 C 12 42 45.97 +28 57 25.4 u H21
2017-07-10 02:45:36 C 12 42 46.02 +28 57 25.4 q W33
2017-07-10 02:45:43 C 12 42 46.07 +28 57 24.9 u H21
2017-07-10 02:47:47 C 12 42 46.19 +28 57 24.2 u H21
2017-07-10 02:50:03 C 12 42 46.29 +28 57 23.8 u H21
2017-07-10 02:52:07 C 12 42 46.40 +28 57 23.3 u H21
2017-07-10 02:55:06 C 12 42 46.57 +28 57 22.3 u H21
2017-07-12 03:58:15 C 12 45 30.38 +28 43 47.2 u H21
2017-07-12 04:00:19 C 12 45 30.49 +28 43 46.8 u H21
2017-07-12 04:02:22 C 12 45 30.61 +28 43 45.9 u H21
2017-07-12 04:04:26 C 12 45 30.72 +28 43 45.2 u H21
2017-07-12 04:06:30 C 12 45 30.83 +28 43 44.7 u H21
2017-07-12 04:08:34 C 12 45 30.93 +28 43 44.2 u H21
2017-07-12 04:10:38 C 12 45 31.04 +28 43 43.6 u H21
2017-07-12 04:14:45 C 12 45 31.29 +28 43 42.4 u H21
2017-07-12 04:16:49 C 12 45 31.41 +28 43 41.8 u H21