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
2017-05-05 06:11:59 C 12 42 25.69 +25 57 05.9 q H45
2017-05-05 06:13:40 C 12 42 25.60 +25 57 07.0 q H45
2017-05-05 06:15:21 C 12 42 25.50 +25 57 08.2 q H45
2017-05-05 06:16:57 C 12 42 25.41 +25 57 09.3 q H45
2017-05-05 06:18:14 C 12 42 25.34 +25 57 10.2 q H45
2017-05-07 02:22:03 C 12 40 04.07 +26 27 12.9 u H21
2017-05-07 02:24:36 C 12 40 03.92 +26 27 14.7 u H21
2017-05-07 02:27:33 C 12 40 03.77 +26 27 16.3 u H21
2017-05-07 02:30:29 C 12 40 03.60 +26 27 18.1 u H21
2017-05-07 02:33:25 C 12 40 03.45 +26 27 20.2 u H21
2017-05-07 02:35:58 C 12 40 03.31 +26 27 21.9 u H21
2017-05-07 08:24:46 C 12 39 44.79 +26 31 14.1 L T08
2017-05-07 08:46:37 C 12 39 43.56 +26 31 28.6 L T08
2017-05-07 09:07:10 C 12 39 42.45 +26 31 42.2 L T08
2017-05-07 09:28:34 C 12 39 41.28 +26 31 55.8 L T08
2017-05-07 22:49:16 C 12 38 59.79 +26 40 31.1 q J27
2017-05-07 23:08:47 C 12 38 58.75 +26 40 43.6 q J27
2017-05-07 23:16:35 C 12 38 58.32 +26 40 48.7 q J27
2017-05-08 02:23:57 C 12 38 49.04 +26 42 48.3 u H21
2017-05-08 02:26:06 C 12 38 48.95 +26 42 49.7 u H21
2017-05-08 02:28:04 C 12 38 48.82 +26 42 51.3 u H21
2017-05-08 02:30:02 C 12 38 48.72 +26 42 52.7 u H21
2017-05-08 02:31:59 C 12 38 48.60 +26 42 53.9 u H21
2017-05-08 02:33:57 C 12 38 48.50 +26 42 55.4 u H21
2017-05-08 02:35:55 C 12 38 48.39 +26 42 56.5 u H21
2017-05-08 02:37:52 C 12 38 48.28 +26 42 57.7 u H21
2017-05-08 02:39:50 C 12 38 48.17 +26 42 59.1 u H21
2017-05-08 02:41:47 C 12 38 48.07 +26 43 00.2 u H21
2017-05-08 02:43:45 C 12 38 47.98 +26 43 01.5 u H21
2017-05-08 02:45:42 C 12 38 47.86 +26 43 02.5 u H21
2017-05-08 02:47:40 C 12 38 47.76 +26 43 03.8 u H21
2017-05-08 02:49:38 C 12 38 47.65 +26 43 05.1 u H21
2017-05-08 02:51:41 C 12 38 47.53 +26 43 06.5 u H21
2017-05-08 21:25:31 C 12 37 50.74 +26 54 44.3 q Z80
2017-05-08 21:29:52 C 12 37 50.50 +26 54 46.6 q Z80
2017-05-08 21:34:11 C 12 37 50.24 +26 54 49.6 q Z80
2017-05-08 21:38:29 C 12 37 50.02 +26 54 52.2 q Z80
2017-05-08 21:42:47 C 12 37 49.82 +26 54 55.0 q Z80
2017-05-11 22:30:54 C 12 34 18.05 +27 37 25.9 u 118
2017-05-11 23:25:40 C 12 34 15.43 +27 37 55.4 u 118
2017-05-12 00:23:10 C 12 34 12.71 +27 38 26.3 u 118
2017-05-12 00:58:45 C 12 34 11.05 +27 38 45.3 u 118
2017-05-13 22:48:58 C 12 32 08.15 +28 02 51.2 q 107
2017-05-13 22:56:48 C 12 32 07.69 +28 02 54.2 u 118
2017-05-13 22:58:28 C 12 32 07.73 +28 02 55.6 q 107
2017-05-13 23:08:57 C 12 32 07.24 +28 03 00.7 q 107
2017-05-13 23:19:15 C 12 32 06.69 +28 03 05.3 u 118
2017-05-14 00:22:54 C 12 32 03.86 +28 03 36.6 u 118
2017-05-14 07:55:06 C 12 31 44.84 +28 07 28.1 L T08
2017-05-14 08:20:09 C 12 31 43.71 +28 07 40.2 L T08