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
2024-03-10 14:19:01 C 10 43 31.869 +04 07 14.03 O18
2024-03-10 15:56:55 C 10 43 27.766 +04 07 56.09 O18
2024-03-10 17:12:17 C 10 43 24.586 +04 08 28.27 O18
2024-03-15 14:12:44 C 10 38 38.084 +04 58 24.42 O18
2024-03-15 15:33:57 C 10 38 34.779 +04 58 59.35 O18
2024-03-17 14:15:44 C 10 36 42.999 +05 18 48.61 O18
2024-03-17 15:34:56 C 10 36 39.784 +05 19 22.17 O18
2024-04-09 06:00:37 C 10 18 46.239 +08 48 19.61 X F52
2024-04-09 06:14:50 C 10 18 45.882 +08 48 24.33 X F52
2024-04-09 06:28:59 C 10 18 45.524 +08 48 29.03 X F52
2024-04-09 06:43:13 C 10 18 45.158 +08 48 33.78 X F52
2024-04-11 05:25:15 C 10 17 39.325 +09 03 41.29 V G96
2024-04-11 05:33:28 C 10 17 39.120 +09 03 43.99 V G96
2024-04-11 05:41:41 C 10 17 38.940 +09 03 46.44 V G96
2024-04-11 05:49:55 C 10 17 38.735 +09 03 49.25 V G96
2025-10-30 10:31:14 C 07 44 15.972 -05 47 39.59 V G96
2025-10-30 10:38:42 C 07 44 15.972 -05 47 42.00 V G96
2025-10-30 10:46:08 C 07 44 15.986 -05 47 44.34 V G96
2025-10-30 10:53:33 C 07 44 15.997 -05 47 46.79 V G96
2026-02-06 07:45:16 C 06 28 00.920 -05 03 20.10 X F52
2026-02-06 08:07:46 C 06 28 00.352 -05 03 11.46 X F52
2026-02-06 08:19:02 C 06 28 00.071 -05 03 07.11 X F52
2026-02-08 02:01:02 C 06 27 01.49 -04 47 03.5 W94
2026-02-08 02:09:59 C 06 27 01.29 -04 46 59.8 W94
2026-02-08 02:18:57 C 06 27 01.06 -04 46 56.3 W94
2026-02-21 05:59:59 C 06 21 58.695 -02 44 13.11 X F51
2026-02-21 06:09:22 C 06 21 58.596 -02 44 09.62 X F51
2026-02-21 06:18:46 C 06 21 58.506 -02 44 05.88 X F51
2026-03-04 06:33:49 C 06 20 52.604 -01 04 22.46 X F51
2026-03-04 06:44:39 C 06 20 52.601 -01 04 18.44 X F51
2026-03-04 06:55:17 C 06 20 52.615 -01 04 14.65 X F51
2026-03-04 07:05:56 C 06 20 52.618 -01 04 10.70 X F51