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
2021-08-28 14:38:03 C 06 03 43.48 +03 04 38.7 V T05
2021-08-28 15:02:36 C 06 03 45.23 +03 04 25.5 V T05
2021-08-28 15:10:32 C 06 03 45.78 +03 04 20.8 V T05
2021-09-05 14:33:26 C 06 16 37.89 +01 18 51.5 V T05
2021-09-05 14:34:05 C 06 16 37.93 +01 18 50.7 V T05
2021-09-05 15:05:17 C 06 16 39.82 +01 18 33.0 V T05
2021-09-05 15:07:56 C 06 16 39.99 +01 18 31.8 V T05
2021-09-05 15:17:24 C 06 16 40.54 +01 18 26.5 V T05
2021-09-05 15:18:03 C 06 16 40.63 +01 18 26.9 V T05
2021-09-27 14:40:55 C 06 42 07.83 -03 45 38.9 V T08
2021-09-27 14:45:19 C 06 42 07.94 -03 45 41.2 V T08
2021-09-27 15:03:58 C 06 42 08.57 -03 45 52.3 V T08
2021-09-27 15:11:19 C 06 42 08.78 -03 45 56.2 V T08
2021-10-03 14:17:37 C 06 46 24.16 -05 10 16.2 V T05
2021-10-03 14:18:16 C 06 46 24.22 -05 10 16.8 V T05
2021-10-03 14:27:16 C 06 46 24.41 -05 10 22.0 V T05
2021-10-03 14:27:56 C 06 46 24.41 -05 10 22.3 V T05
2021-10-03 14:31:54 C 06 46 24.51 -05 10 24.7 V T05
2021-10-03 14:54:27 C 06 46 25.04 -05 10 38.1 V T05
2021-10-03 14:57:47 C 06 46 24.98 -05 10 39.5 V T05
2021-10-07 13:45:40 C 06 48 34.07 -06 06 27.9 V T05
2021-10-07 13:53:40 C 06 48 34.20 -06 06 33.1 V T05
2021-10-07 14:13:32 C 06 48 34.58 -06 06 44.3 V T05
2021-10-21 12:40:25 C 06 51 40.84 -09 19 02.3 V T08
2021-10-21 12:50:23 C 06 51 40.89 -09 19 07.0 V T08
2021-10-21 12:58:23 C 06 51 40.80 -09 19 11.5 V T08
2021-10-21 13:09:43 C 06 51 40.84 -09 19 18.8 V T08
2021-10-29 13:48:21 C 06 50 10.85 -11 02 55.0 V T08
2021-10-29 13:53:03 C 06 50 10.71 -11 02 57.2 V T08
2021-10-29 13:59:01 C 06 50 10.65 -11 03 00.7 V T08
2021-10-29 14:10:59 C 06 50 10.43 -11 03 06.3 V T08
2021-10-31 13:12:39 C 06 49 26.07 -11 27 06.5 V T05
2021-10-31 13:17:16 C 06 49 25.96 -11 27 08.6 V T05
2021-10-31 13:35:07 C 06 49 25.64 -11 27 17.9 V T05
2021-10-31 13:41:47 C 06 49 25.52 -11 27 21.2 V T05
2021-11-04 13:19:24 C 06 47 27.75 -12 14 07.4 V T05
2021-11-04 13:22:02 C 06 47 27.70 -12 14 08.8 V T05
2021-11-04 13:25:59 C 06 47 27.60 -12 14 10.5 V T05
2021-11-05 12:02:38 C 06 46 54.55 -12 24 47.3 V T08
2021-11-05 12:08:38 C 06 46 54.37 -12 24 49.9 V T08
2021-11-05 12:18:36 C 06 46 54.16 -12 24 53.9 V T08
2021-11-05 12:37:18 C 06 46 53.63 -12 25 03.5 V T08
2021-11-08 11:52:00 C 06 44 56.15 -12 57 14.1 V T05
2021-11-08 11:57:19 C 06 44 55.98 -12 57 16.4 V T05
2021-11-08 12:01:42 C 06 44 55.83 -12 57 18.7 V T05
2021-11-08 12:08:59 C 06 44 55.60 -12 57 21.9 V T05
2021-11-09 11:15:31 C 06 44 13.37 -13 07 21.8 V T08
2021-11-09 11:27:30 C 06 44 12.99 -13 07 26.4 V T08
2021-11-09 11:47:16 C 06 44 12.29 -13 07 34.7 V T08
2021-11-09 11:56:34 C 06 44 12.03 -13 07 39.0 V T08