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
2017-04-12 05:15:38 C 13 15 15.05 +17 24 50.7 u H21
2017-04-12 05:18:35 C 13 15 14.87 +17 24 54.3 u H21
2017-04-12 05:21:31 C 13 15 14.70 +17 24 57.6 u H21
2017-04-12 05:25:44 C 13 15 14.45 +17 25 02.1 u H21
2017-04-13 00:36:30 C 13 14 08.75 +17 45 41.1 q Z80
2017-04-13 00:40:03 C 13 14 08.58 +17 45 45.0 q Z80
2017-04-13 00:43:36 C 13 14 08.36 +17 45 48.6 q Z80
2017-04-13 00:47:08 C 13 14 08.15 +17 45 52.8 q Z80
2017-04-13 00:50:41 C 13 14 07.94 +17 45 56.3 q Z80
2017-04-13 00:54:13 C 13 14 07.70 +17 45 59.9 q Z80
2017-04-14 04:18:58 C 13 12 33.01 +18 15 23.5 u H21
2017-04-14 04:21:12 C 13 12 32.86 +18 15 25.9 u H21
2017-04-14 04:24:11 C 13 12 32.68 +18 15 29.1 u H21
2017-04-14 04:26:09 C 13 12 32.57 +18 15 31.0 u H21
2017-04-14 04:28:06 C 13 12 32.45 +18 15 33.1 u H21
2017-04-14 04:30:04 C 13 12 32.34 +18 15 35.4 u H21
2017-04-14 04:32:02 C 13 12 32.21 +18 15 37.3 u H21
2017-04-14 04:33:59 C 13 12 32.10 +18 15 39.6 u H21
2017-04-14 04:35:57 C 13 12 31.98 +18 15 41.7 u H21
2017-04-14 04:38:35 C 13 12 31.83 +18 15 44.5 u H21
2017-04-14 16:32:56 C 13 11 49.95 +18 28 26.2 q D29
2017-04-14 16:55:29 C 13 11 48.58 +18 28 50.1 q D29
2017-04-14 17:18:01 C 13 11 47.21 +18 29 14.1 q D29
2017-04-16 10:08:14 C 13 09 22.33 +19 12 18.6 q H15
2017-04-16 10:22:13 C 13 09 21.49 +19 12 33.2 q H15
2017-04-16 10:35:49 C 13 09 21.01 +19 12 50.7 L T08
2017-04-16 10:36:16 C 13 09 20.64 +19 12 48.1 q H15
2017-04-16 10:55:16 C 13 09 19.80 +19 13 10.6 L T08
2017-04-16 11:21:04 C 13 09 18.22 +19 13 37.8 L T08
2017-04-16 11:46:46 C 13 09 16.62 +19 14 04.2 L T08
2017-04-17 07:43:24 C 13 08 05.27 +19 34 49.8 q 703
2017-04-17 07:49:45 C 13 08 04.87 +19 34 56.9 q 703
2017-04-17 07:56:05 C 13 08 04.51 +19 35 02.7 q 703
2017-04-17 08:13:25 C 13 08 03.40 +19 35 20.9 q 703
2017-04-17 09:23:50 C 13 07 59.03 +19 36 33.5 q G96
2017-04-17 09:29:58 C 13 07 58.65 +19 36 39.9 q G96
2017-04-17 09:36:10 C 13 07 58.26 +19 36 46.2 q G96
2017-04-17 09:42:19 C 13 07 57.88 +19 36 52.5 q G96
2017-04-20 00:06:59 C 13 04 11.40 +20 40 32.5 U 160
2017-04-20 00:09:00 C 13 04 11.35 +20 40 34.5 U 160
2017-04-20 00:10:48 C 13 04 11.16 +20 40 36.6 U 160
2017-04-20 07:22:28 C 13 03 44.99 +20 47 50.7 q G96
2017-04-20 07:28:35 C 13 03 44.60 +20 47 56.8 q G96
2017-04-20 07:34:41 C 13 03 44.21 +20 48 02.8 q G96
2017-04-20 07:40:49 C 13 03 43.82 +20 48 09.0 q G96
2017-04-20 09:01:26 C 13 03 38.73 +20 49 29.2 q G96
2017-04-20 09:07:59 C 13 03 38.32 +20 49 35.5 q G96
2017-04-20 09:14:20 C 13 03 37.92 +20 49 41.9 q G96
2017-04-20 09:20:51 C 13 03 37.52 +20 49 48.4 q G96
2017-04-20 23:42:56 C 13 02 45.07 +21 04 03.8 q 160