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
2017-05-20 09:18:52 C 12 26 14.85 +29 09 42.2 L T05
2017-05-20 09:21:07 C 12 26 14.77 +29 09 43.0 L T05
2017-05-20 09:25:38 C 12 26 14.61 +29 09 44.8 L T05
2017-05-20 09:27:54 C 12 26 14.53 +29 09 45.4 L T05
2017-05-20 10:00:34 C 12 26 13.41 +29 09 57.1 L T05
2017-05-21 04:55:41 C 12 25 37.54 +29 16 38.5 q G96
2017-05-21 05:01:44 C 12 25 37.34 +29 16 40.6 q G96
2017-05-21 05:07:41 C 12 25 37.14 +29 16 42.6 q G96
2017-05-21 05:15:27 C 12 25 36.88 +29 16 45.3 q G96
2017-05-21 21:05:36 C 12 25 07.97 +29 22 06.5 15.9 d B66
2017-05-21 22:11:27 C 12 25 05.86 +29 22 27.8 16.0 d B66
2017-05-21 23:07:06 C 12 25 04.05 +29 22 44.8 u 118
2017-05-21 23:21:54 C 12 25 03.59 +29 22 49.5 u 118
2017-05-21 23:44:07 C 12 25 02.90 +29 22 56.6 u 118
2017-05-22 00:05:19 C 12 25 02.30 +29 23 04.2 15.8 d B66
2017-05-22 20:24:15 C 12 24 27.32 +29 29 37.1 u 118
2017-05-22 22:14:20 C 12 24 24.21 +29 30 10.0 U Z52
2017-05-22 22:49:41 C 12 24 23.00 +29 30 21.4 u 118
2017-05-22 22:59:48 C 12 24 22.87 +29 30 23.9 U Z52
2017-05-22 23:11:55 C 12 24 22.35 +29 30 28.0 u 118
2017-05-22 23:43:08 C 12 24 21.59 +29 30 37.0 U Z52
2017-05-23 22:17:19 C 12 23 45.11 +29 37 27.1 q J27
2017-05-23 22:29:27 C 12 23 44.78 +29 37 30.6 q J27
2017-05-23 22:37:35 C 12 23 44.54 +29 37 32.8 q J27
2017-05-23 22:40:21 C 12 23 44.51 +29 37 31.6 U Z52
2017-05-23 23:29:28 C 12 23 43.16 +29 37 45.6 U Z52
2017-05-23 23:31:19 C 12 23 42.96 +29 37 46.6 u 118
2017-05-23 23:53:32 C 12 23 42.37 +29 37 52.6 u 118
2017-05-24 00:19:17 C 12 23 41.81 +29 37 59.5 U Z52
2017-05-24 00:19:28 C 12 23 41.68 +29 37 59.8 u 118
2017-05-24 12:53:28 S 12 23 23.18 +29 41 38.7 L C51
2017-05-24 16:01:59 S 12 23 18.48 +29 42 31.2 L C51
2017-05-24 16:02:09 S 12 23 18.46 +29 42 31.3 L C51
2017-05-24 19:10:40 S 12 23 13.85 +29 43 23.1 L C51
2017-05-24 20:44:55 S 12 23 11.52 +29 43 48.8 L C51
2017-05-24 22:19:10 S 12 23 09.25 +29 44 14.6 L C51
2017-05-24 23:53:25 S 12 23 06.95 +29 44 40.1 L C51
2017-05-25 01:27:40 S 12 23 04.68 +29 45 06.2 L C51
2017-05-25 04:36:21 S 12 23 00.17 +29 45 56.8 L C51
2017-05-25 06:10:36 S 12 22 57.96 +29 46 21.7 L C51
2017-05-25 09:19:06 S 12 22 53.53 +29 47 11.9 L C51
2017-05-25 12:27:47 S 12 22 49.14 +29 48 00.8 L C51
2017-05-25 22:45:54 C 12 22 34.49 +29 50 36.6 u 118
2017-05-25 23:04:25 C 12 22 34.06 +29 50 41.1 u 118
2017-05-26 00:11:05 C 12 22 32.53 +29 50 57.0 u 118
2017-05-26 04:06:56 C 12 22 27.56 +29 51 59.7 q H45
2017-05-26 04:09:57 C 12 22 27.49 +29 52 00.4 q H45
2017-05-26 04:12:08 C 12 22 27.43 +29 52 01.0 q H45
2017-05-26 04:15:40 C 12 22 27.34 +29 52 01.7 q H45
2017-05-26 04:17:53 C 12 22 27.28 +29 52 02.2 q H45