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
2017-03-03 06:42:30 C 13 45 02.91 +02 20 01.0 R G45
2017-03-03 06:49:06 C 13 45 02.88 +02 20 05.5 R G45
2017-03-03 06:49:12 C 13 45 02.87 +02 20 05.6 R G45
2017-03-03 06:56:00 C 13 45 02.84 +02 20 10.1 R G45
2017-03-03 06:57:02 C 13 45 02.84 +02 20 10.7 R G45
2017-03-03 07:03:00 C 13 45 02.82 +02 20 14.9 R G45
2017-03-03 07:04:01 C 13 45 02.82 +02 20 15.2 R G45
2017-03-03 07:09:51 C 13 45 02.78 +02 20 19.1 R G45
2017-03-03 07:10:52 C 13 45 02.78 +02 20 19.9 R G45
2017-03-04 12:55:48 C 13 44 55.82 +02 40 13.3 L T05
2017-03-04 13:17:55 C 13 44 55.64 +02 40 28.3 L T05
2017-03-04 13:30:00 C 13 44 55.56 +02 40 36.8 L T05
2017-03-04 14:03:04 C 13 44 55.36 +02 40 59.3 L T05
2017-03-05 11:19:13 C 13 44 48.67 +02 55 34.2 q G96
2017-03-05 11:21:14 C 13 44 48.64 +02 55 35.7 q G96
2017-03-05 11:29:19 C 13 44 48.58 +02 55 41.3 q G96
2017-03-05 11:34:50 C 13 44 48.52 +02 55 45.2 q G96
2017-03-05 12:35:05 C 13 44 48.367 +02 56 28.24 L F51
2017-03-05 12:53:25 C 13 44 48.224 +02 56 40.96 L F51
2017-03-05 13:11:47 C 13 44 48.088 +02 56 53.77 L F51
2017-03-05 20:13:32 C 13 44 45.40 +03 01 47.1 q D29
2017-03-05 20:44:11 C 13 44 45.14 +03 02 08.5 q D29
2017-03-05 21:14:49 C 13 44 44.91 +03 02 29.9 q D29
2017-03-08 14:39:08 C 13 44 12.72 +03 49 54.8 L T08
2017-03-08 14:59:17 C 13 44 12.42 +03 50 10.7 L T08
2017-03-08 15:18:51 C 13 44 12.16 +03 50 25.3 L T08
2017-03-08 15:38:05 C 13 44 12.00 +03 50 41.0 L T08
2017-03-09 01:18:48 C 13 44 06.27 +03 57 54.8 q 160
2017-03-09 01:20:47 C 13 44 06.26 +03 57 56.3 q 160
2017-03-09 01:22:44 C 13 44 06.25 +03 57 57.5 q 160
2017-03-09 07:58:45 C 13 44 01.89 +04 02 57.5 u H21
2017-03-09 08:01:59 C 13 44 01.86 +04 03 00.3 u H21
2017-03-09 08:04:55 C 13 44 01.84 +04 03 02.6 u H21
2017-03-09 08:07:51 C 13 44 01.81 +04 03 04.9 u H21
2017-03-09 08:10:48 C 13 44 01.77 +04 03 07.2 u H21
2017-03-09 08:13:44 C 13 44 01.74 +04 03 09.4 u H21
2017-03-09 08:16:41 C 13 44 01.69 +04 03 11.6 u H21
2017-03-09 08:19:38 C 13 44 01.64 +04 03 13.7 u H21
2017-03-09 08:22:16 C 13 44 01.61 +04 03 15.7 u H21
2017-03-11 01:38:59 C 13 43 31.16 +04 35 15.7 q 160
2017-03-11 01:40:55 C 13 43 31.11 +04 35 18.1 q 160
2017-03-11 01:42:52 C 13 43 31.10 +04 35 19.7 q 160
2017-03-15 07:36:41 C 13 41 49.92 +05 59 31.3 u H21
2017-03-15 07:42:33 C 13 41 49.81 +05 59 36.4 u H21
2017-03-15 07:48:26 C 13 41 49.69 +05 59 41.5 u H21
2017-03-15 07:54:19 C 13 41 49.56 +05 59 46.3 u H21
2017-03-15 08:00:18 C 13 41 49.42 +05 59 51.4 u H21
2017-03-15 08:52:18 C 13 41 48.34 +06 00 36.0 u H21
2017-03-15 08:55:42 C 13 41 48.27 +06 00 38.9 u H21
2017-03-15 08:58:48 C 13 41 48.21 +06 00 41.7 u H21