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
2002-04-02 22:41:38 C 12 24 31.10 +11 39 01.4 c 113
2002-04-02 22:44:54 C 12 24 30.91 +11 39 04.0 c 113
2002-04-05 05:59:32 C 12 21 29.19 +12 22 53.8 17.2 c 704
2002-04-05 06:16:23 C 12 21 28.26 +12 23 06.8 17.2 c 704
2002-04-05 06:33:12 C 12 21 27.32 +12 23 20.5 17.4 c 704
2002-04-05 06:50:03 C 12 21 26.32 +12 23 33.4 17.3 c 704
2002-04-06 06:07:32 C 12 20 09.33 +12 41 48.3 17.2 c 704
2002-04-06 06:24:47 C 12 20 08.35 +12 42 02.6 17.7 c 704
2002-04-06 06:42:02 C 12 20 07.38 +12 42 15.2 17.7 c 704
2002-04-06 07:01:33 C 12 20 06.28 +12 42 30.1 17.8 c 704
2002-04-06 07:18:48 C 12 20 05.30 +12 42 43.3 17.7 c 704
2002-04-09 05:47:35 C 12 16 11.49 +13 37 03.3 16.9 c 704
2002-04-09 06:04:28 C 12 16 10.51 +13 37 16.2 17.1 c 704
2002-04-09 06:21:15 C 12 16 09.57 +13 37 28.8 17.2 c 704
2002-04-09 06:38:00 C 12 16 08.63 +13 37 41.7 17.1 c 704
2002-04-09 06:55:40 C 12 16 07.61 +13 37 54.8 17.3 c 704
2002-04-16 05:58:21 C 12 07 02.23 +15 39 02.3 17.3 c 704
2002-04-16 06:18:14 C 12 07 01.15 +15 39 15.6 17.0 c 704
2002-04-16 06:38:10 C 12 07 00.06 +15 39 29.4 17.2 c 704
2002-04-16 06:58:26 C 12 06 58.94 +15 39 43.4 17.1 c 704
2002-04-16 07:18:18 C 12 06 57.86 +15 39 56.9 17.3 c 704
2002-04-17 04:44:43 C 12 05 50.29 +15 54 31.0 17.4 c 704
2002-04-17 05:04:23 C 12 05 49.19 +15 54 44.4 18.1 c 704
2002-04-17 05:23:53 C 12 05 48.16 +15 54 57.7 17.8 c 704
2002-04-17 05:43:28 C 12 05 47.09 +15 55 10.3 17.4 c 704
2002-04-17 06:03:12 C 12 05 46.03 +15 55 23.4 17.6 c 704
2002-04-17 06:27:45 C 12 05 44.66 +15 55 39.7 17.3 c 704
2002-04-17 06:47:05 C 12 05 43.64 +15 55 53.3 17.5 c 704
2002-04-17 07:07:25 C 12 05 42.54 +15 56 06.5 17.5 c 704
2002-04-17 07:27:06 C 12 05 41.50 +15 56 19.5 17.8 c 704
2002-04-17 07:46:27 C 12 05 40.44 +15 56 32.6 17.4 c 704
2002-05-06 05:01:32 C 11 46 03.71 +19 57 37.7 16.6 c 704
2002-05-06 05:19:08 C 11 46 03.14 +19 57 44.4 17.4 c 704
2002-05-06 05:36:49 C 11 46 02.55 +19 57 51.3 17.1 c 704
2002-05-06 05:54:29 C 11 46 01.98 +19 57 58.0 17.2 c 704
2002-05-06 06:12:09 C 11 46 01.39 +19 58 04.6 17.4 c 704
2002-05-14 03:57:36 C 11 41 11.36 +20 58 47.4 17.4 c 704
2002-05-14 04:19:04 C 11 41 10.89 +20 58 53.0 17.0 c 704
2002-05-14 04:40:28 C 11 41 10.46 +20 58 58.1 17.2 c 704
2002-05-14 05:03:05 C 11 41 10.02 +20 59 03.8 17.4 c 704
2002-05-14 05:26:15 C 11 41 09.52 +20 59 09.9 17.5 c 704
2002-05-18 05:19:01 C 11 39 37.46 +21 21 08.8 c 699
2002-05-18 05:46:39 C 11 39 37.02 +21 21 14.4 c 699
2002-05-18 06:14:16 C 11 39 36.65 +21 21 19.5 c 699
2002-05-18 06:41:51 C 11 39 36.29 +21 21 25.1 c 699
2002-06-12 03:58:42 C 11 43 42.88 +21 49 50.1 17.4 c 704
2002-06-12 04:17:23 C 11 43 43.39 +21 49 48.6 17.5 c 704
2002-06-12 04:36:03 C 11 43 43.83 +21 49 47.0 17.5 c 704
2002-06-12 04:54:56 C 11 43 44.25 +21 49 44.5 17.7 c 704
2002-06-12 05:14:04 C 11 43 44.76 +21 49 43.2 17.3 c 704