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
2017-03-30 13:07:44 C 13 30 28.37 +11 54 55.9 L T08
2017-03-30 13:28:59 C 13 30 27.41 +11 55 18.3 L T08
2017-03-30 13:49:25 C 13 30 26.52 +11 55 39.8 L T08
2017-03-30 14:10:44 C 13 30 25.59 +11 56 02.5 L T08
2017-03-30 23:46:52 C 13 30 01.44 +12 06 12.1 q 160
2017-03-30 23:48:50 C 13 30 01.35 +12 06 14.3 q 160
2017-03-30 23:50:47 C 13 30 01.27 +12 06 15.7 q 160
2017-04-01 11:54:29 C 13 28 26.12 +12 44 54.4 L T05
2017-04-01 12:30:10 C 13 28 24.42 +12 45 32.9 L T05
2017-04-01 13:02:19 C 13 28 22.94 +12 46 07.1 L T05
2017-04-01 13:19:11 C 13 28 22.12 +12 46 25.4 L T05
2017-04-02 10:39:25 C 13 27 23.75 +13 09 23.8 o 691
2017-04-02 10:57:02 C 13 27 22.91 +13 09 42.7 o 691
2017-04-02 11:14:37 C 13 27 22.07 +13 10 01.7 o 691
2017-04-02 12:51:23 C 13 27 17.73 +13 11 48.2 L T08
2017-04-02 13:13:21 C 13 27 16.67 +13 12 11.6 L T08
2017-04-02 13:35:16 C 13 27 15.60 +13 12 35.6 L T08
2017-04-02 13:58:04 C 13 27 14.50 +13 12 59.9 L T08
2017-04-03 12:47:28 C 13 26 10.36 +13 37 43.7 L T08
2017-04-03 13:09:19 C 13 26 09.27 +13 38 07.4 L T08
2017-04-03 13:31:27 C 13 26 08.15 +13 38 31.2 L T08
2017-04-03 13:54:10 C 13 26 07.02 +13 38 56.0 L T08
2017-04-03 21:35:00 C 13 25 45.68 +13 47 13.8 q 006
2017-04-03 21:42:42 C 13 25 45.29 +13 47 22.5 q 006
2017-04-03 21:50:24 C 13 25 44.89 +13 47 30.8 q 006
2017-04-03 21:58:06 C 13 25 44.53 +13 47 39.1 q 006
2017-04-04 00:00:33 C 13 25 38.35 +13 49 51.5 q 160
2017-04-04 00:02:38 C 13 25 38.24 +13 49 54.8 q 160
2017-04-04 00:04:34 C 13 25 38.17 +13 49 56.1 q 160
2017-04-05 11:37:50 C 13 23 53.53 +14 28 43.6 L T08
2017-04-05 11:56:17 C 13 23 52.58 +14 29 03.3 L T08
2017-04-05 12:16:12 C 13 23 51.51 +14 29 25.2 L T08
2017-04-05 12:25:03 C 13 23 51.04 +14 29 35.0 L T08
2017-04-06 23:06:37 C 13 22 05.67 +15 07 25.7 q 160
2017-04-06 23:08:35 C 13 22 05.56 +15 07 28.0 q 160
2017-04-06 23:10:35 C 13 22 05.45 +15 07 30.1 q 160
2017-04-07 22:40:02 C 13 20 51.80 +15 33 11.4 Q 160
2017-04-07 22:42:03 C 13 20 51.72 +15 33 13.5 Q 160
2017-04-07 22:44:04 C 13 20 51.67 +15 33 16.0 Q 160
2017-04-08 20:16:35 C 13 19 43.38 +15 56 46.5 q K74
2017-04-08 20:20:36 C 13 19 43.13 +15 56 50.9 q K74
2017-04-08 20:44:34 C 13 19 41.84 +15 57 17.0 q K74
2017-04-08 20:48:27 C 13 19 41.61 +15 57 21.5 q K74
2017-04-09 20:17:45 C 13 18 25.46 +16 22 59.9 o 107
2017-04-09 20:22:14 C 13 18 25.21 +16 23 04.3 o 107
2017-04-09 20:26:45 C 13 18 24.94 +16 23 09.3 o 107
2017-04-12 05:03:35 C 13 15 15.77 +17 24 38.1 u H21
2017-04-12 05:06:49 C 13 15 15.58 +17 24 41.6 u H21
2017-04-12 05:09:46 C 13 15 15.38 +17 24 44.6 u H21
2017-04-12 05:12:42 C 13 15 15.22 +17 24 47.6 u H21