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
2017-08-13 20:56:40 C 13 42 53.20 +22 46 02.0 15.3 q Z43
2017-08-13 21:34:26 C 13 42 56.34 +22 45 34.6 16.5 q Z43
2017-08-13 22:10:12 C 13 42 59.32 +22 45 08.4 16.5 q Z43
2017-08-15 02:48:29 C 13 45 23.69 +22 24 11.1 P V78
2017-08-15 02:52:40 C 13 45 23.88 +22 24 06.8 P V78
2017-08-15 03:00:14 C 13 45 24.47 +22 24 01.4 P V78
2017-08-15 03:02:27 C 13 45 24.76 +22 23 58.5 P V78
2017-08-16 06:53:02 C 13 47 45.29 +22 02 43.3 L T08
2017-08-16 07:04:16 C 13 47 46.21 +22 02 34.2 L T08
2017-08-16 07:15:27 C 13 47 47.14 +22 02 25.2 L T08
2017-08-16 07:26:55 C 13 47 48.10 +22 02 16.0 L T08
2017-08-18 21:05:50 C 13 53 01.36 +21 11 07.8 17.0 q Z43
2017-08-18 21:41:13 C 13 53 04.34 +21 10 36.7 16.6 q Z43
2017-08-19 02:33:05 C 13 53 29.13 +21 06 22.0 P V78
2017-08-19 02:39:27 C 13 53 29.67 +21 06 15.8 P V78
2017-08-19 02:47:31 C 13 53 30.37 +21 06 09.1 P V78
2017-08-22 02:43:22 C 13 59 37.27 +19 58 24.3 P V78
2017-08-22 02:51:38 C 13 59 37.84 +19 58 16.9 P V78
2017-08-22 02:56:30 C 13 59 38.28 +19 58 10.7 P V78
2017-08-22 03:00:06 C 13 59 38.62 +19 58 07.3 P V78
2017-08-23 02:53:28 C 14 01 40.64 +19 33 31.4 P V78
2017-08-23 02:56:35 C 14 01 40.97 +19 33 26.7 P V78
2017-08-23 02:59:15 C 14 01 41.11 +19 33 24.4 P V78
2017-08-25 02:37:54 C 14 05 44.66 +18 40 41.7 P V78
2017-08-25 02:51:37 C 14 05 45.70 +18 40 24.7 P V78
2017-08-25 03:00:07 C 14 05 46.43 +18 40 14.8 P V78
2017-08-27 02:10:38 C 14 09 47.54 +17 42 37.4 P V78
2017-08-27 02:12:14 C 14 09 47.50 +17 42 34.2 P V78
2017-08-27 02:24:20 C 14 09 48.69 +17 42 19.8 P V78
2017-10-12 10:23:41 C 23 00 39.58 -75 32 41.0 v Q62
2017-10-12 10:39:27 C 23 01 01.55 -75 31 52.7 v Q62
2017-10-12 10:55:14 C 23 01 23.39 -75 31 04.0 v Q62
2017-10-12 12:15:16 C 23 03 13.24 -75 26 53.2 t Q65
2017-10-12 12:23:51 C 23 03 25.25 -75 26 26.1 t Q65
2017-10-12 12:34:47 C 23 03 39.90 -75 25 51.6 t Q65
2017-10-13 14:01:08 C 23 34 55.82 -73 59 53.7 t Q65
2017-10-13 14:09:36 C 23 35 04.68 -73 59 22.4 t Q65
2017-10-13 14:17:43 C 23 35 13.07 -73 58 54.0 t Q65
2017-10-14 16:49:19 S 00 00 13.850 -72 22 00.12 L C51
2017-10-14 16:49:30 S 00 00 14.076 -72 21 59.83 L C51
2017-10-14 21:32:15 S 00 04 00.821 -72 04 33.56 L C51
2017-10-14 23:06:30 S 00 05 14.143 -71 58 44.54 L C51
2017-10-15 00:40:45 S 00 06 26.263 -71 52 55.42 L C51
2017-11-18 08:56:58 C 02 03 46.12 -41 20 49.1 U T08
2017-11-18 09:08:14 C 02 03 46.45 -41 20 33.4 U T08
2017-11-18 09:19:29 C 02 03 46.76 -41 20 17.4 U T08
2017-11-18 09:30:46 C 02 03 47.09 -41 20 01.8 U T08
2017-11-24 08:24:25 C 02 08 27.89 -38 07 31.7 U T05
2017-11-24 08:37:26 C 02 08 28.24 -38 07 14.7 U T05
2017-11-24 08:39:46 C 02 08 28.31 -38 07 11.7 U T05