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
2021-11-17 11:00:56 C 06 37 08.04 -14 20 47.3 V T08
2021-11-17 11:23:30 C 06 37 07.07 -14 20 54.7 V T08
2021-11-17 11:28:04 C 06 37 06.92 -14 20 56.0 V T08
2021-11-17 11:36:43 C 06 37 06.51 -14 20 58.5 V T08
2021-11-19 11:37:17 C 06 35 00.66 -14 36 22.5 V T05
2021-11-19 11:41:47 C 06 35 00.45 -14 36 23.5 V T05
2021-11-19 11:49:42 C 06 35 00.09 -14 36 26.5 V T05
2021-11-19 12:22:20 C 06 34 58.58 -14 36 36.4 V T05
2021-11-20 11:58:11 C 06 33 54.08 -14 43 40.8 V T05
2021-11-20 12:02:08 C 06 33 53.85 -14 43 40.7 V T05
2021-11-20 12:06:44 C 06 33 53.64 -14 43 42.8 V T05
2021-11-20 12:14:40 C 06 33 53.28 -14 43 45.5 V T05
2021-11-22 11:39:16 C 06 31 38.83 -14 56 57.1 V T08
2021-11-22 11:41:56 C 06 31 38.71 -14 56 57.7 V T08
2021-11-22 11:50:01 C 06 31 38.30 -14 57 00.2 V T08
2021-11-22 11:58:01 C 06 31 37.86 -14 57 02.1 V T08
2021-11-24 11:44:26 C 06 29 16.07 -15 08 55.4 V T05
2021-11-24 11:47:04 C 06 29 15.92 -15 08 56.4 V T05
2021-11-24 11:51:01 C 06 29 15.70 -15 08 57.4 V T05
2021-11-24 11:58:16 C 06 29 15.32 -15 08 59.1 V T05
2021-11-26 11:47:31 C 06 26 47.54 -15 19 25.1 V T08
2021-11-26 11:50:10 C 06 26 47.43 -15 19 24.7 V T08
2021-11-26 12:00:49 C 06 26 46.89 -15 19 27.6 V T08
2021-11-26 12:08:13 C 06 26 46.44 -15 19 28.7 V T08
2021-11-28 12:56:47 C 06 24 10.11 -15 28 33.1 V T05
2021-11-28 13:01:24 C 06 24 09.85 -15 28 34.2 V T05
2021-11-28 13:09:59 C 06 24 09.36 -15 28 35.5 V T05
2021-11-28 14:00:58 C 06 24 06.53 -15 28 44.0 V T05
2021-11-29 11:36:45 C 06 22 55.94 -15 32 13.3 V T08
2021-11-29 11:39:24 C 06 22 55.85 -15 32 12.6 V T08
2021-11-29 11:43:23 C 06 22 55.67 -15 32 12.3 V T08
2021-11-29 12:00:02 C 06 22 54.68 -15 32 18.0 V T08
2021-12-03 10:50:18 C 06 17 34.40 -15 43 38.6 V T08
2021-12-03 10:53:37 C 06 17 34.19 -15 43 39.2 V T08
2021-12-03 10:57:35 C 06 17 33.96 -15 43 39.4 V T08
2021-12-03 11:06:56 C 06 17 33.39 -15 43 40.4 V T08
2021-12-05 08:36:02 C 06 14 55.18 -15 46 50.3 V 703
2021-12-05 08:44:13 C 06 14 54.69 -15 46 50.6 V 703
2021-12-05 08:52:25 C 06 14 54.21 -15 46 51.0 V 703
2021-12-05 09:00:36 C 06 14 53.70 -15 46 51.5 V 703
2021-12-06 08:28:09 C 06 13 31.34 -15 47 53.1 V G96
2021-12-06 08:35:33 C 06 13 30.88 -15 47 53.5 V G96
2021-12-06 08:45:24 C 06 13 30.31 -15 47 53.6 V G96
2021-12-06 08:52:49 C 06 13 29.85 -15 47 54.0 V G96
2021-12-09 08:21:14 C 06 09 16.34 -15 48 30.3 V 703
2021-12-09 08:37:23 C 06 09 15.40 -15 48 31.1 V 703
2021-12-09 08:45:28 C 06 09 14.85 -15 48 30.7 V 703
2021-12-13 04:03:20 C 06 03 49.13 -15 43 52.2 Z W33
2021-12-13 04:26:00 C 06 03 47.70 -15 43 50.1 Z W33
2021-12-13 04:48:38 C 06 03 46.26 -15 43 48.0 Z W33