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
2018-01-04 20:38:51 S 02 45 13.231 -20 07 48.94 L C51
2018-01-04 22:13:06 S 02 45 17.388 -20 06 22.82 L C51
2018-01-04 23:47:21 S 02 45 21.528 -20 04 57.90 L C51
2018-01-05 07:38:36 S 02 45 42.324 -19 57 51.48 L C51
2018-01-05 10:47:06 S 02 45 50.597 -19 55 02.35 L C51
2018-01-05 13:55:36 S 02 45 58.918 -19 52 12.47 L C51
2018-01-08 04:22:01 C 02 48 46.13 -18 56 42.7 U 703
2018-01-08 04:30:00 C 02 48 46.49 -18 56 35.9 U 703
2018-01-08 04:37:59 C 02 48 46.83 -18 56 28.7 U 703
2018-01-08 04:45:58 C 02 48 47.22 -18 56 21.6 U 703
2018-01-09 07:08:46 C 02 49 58.93 -18 33 13.4 U T08
2018-01-09 07:19:23 C 02 49 59.38 -18 33 04.1 U T08
2018-01-09 07:21:21 C 02 49 59.46 -18 33 03.7 U T08
2018-01-09 07:30:38 C 02 49 59.94 -18 32 55.5 U T08
2018-01-09 07:32:38 C 02 49 59.98 -18 32 53.7 U T08
2018-01-09 07:41:54 C 02 50 00.38 -18 32 44.6 U T08
2018-01-09 07:43:56 C 02 50 00.45 -18 32 43.4 U T08
2018-01-09 07:55:12 C 02 50 00.96 -18 32 33.5 U T08
2018-01-11 07:14:05 C 02 52 11.07 -17 51 42.1 U T05
2018-01-11 07:14:45 C 02 52 11.08 -17 51 40.5 U T05
2018-01-11 07:16:43 C 02 52 11.16 -17 51 38.5 U T05
2018-01-11 07:50:27 C 02 52 12.67 -17 51 09.8 U T05
2018-01-14 07:51:25 C 02 55 34.26 -16 50 15.6 U T08
2018-01-14 08:05:34 C 02 55 34.89 -16 50 03.7 U T08
2018-01-14 08:19:54 C 02 55 35.55 -16 49 51.7 U T08
2018-01-14 08:34:16 C 02 55 36.21 -16 49 39.3 U T08
2018-01-16 04:01:10 C 02 57 40.01 -16 13 43.6 U 703
2018-01-16 04:08:46 C 02 57 40.36 -16 13 37.1 U 703
2018-01-16 04:16:22 C 02 57 40.73 -16 13 31.2 U 703
2018-01-16 04:23:57 C 02 57 41.08 -16 13 24.6 U 703
2018-01-16 08:19:11 C 02 57 52.19 -16 10 10.8 U T05
2018-01-16 08:33:19 C 02 57 52.87 -16 09 58.9 U T05
2018-01-16 08:47:31 C 02 57 53.54 -16 09 47.1 U T05
2018-01-16 09:01:44 C 02 57 54.21 -16 09 35.5 U T05
2018-01-17 07:15:49 C 02 58 58.28 -15 51 26.9 U T08
2018-01-17 07:27:49 C 02 58 58.85 -15 51 17.1 U T08
2018-01-17 07:39:47 C 02 58 59.38 -15 51 07.6 U T08
2018-01-18 07:41:14 C 03 00 08.92 -15 31 41.1 U T08
2018-01-18 07:55:28 C 03 00 09.60 -15 31 30.0 U T08
2018-01-18 08:09:38 C 03 00 10.24 -15 31 18.1 U T08
2018-01-18 08:23:55 C 03 00 10.95 -15 31 06.9 U T08
2018-01-19 03:26:42 C 03 01 06.59 -15 15 51.3 U G96
2018-01-19 03:34:50 C 03 01 07.00 -15 15 45.0 U G96
2018-01-19 03:42:59 C 03 01 07.36 -15 15 38.3 U G96
2018-01-19 03:51:08 C 03 01 07.73 -15 15 31.8 U G96
2018-01-19 04:02:09 C 03 01 08.26 -15 15 23.0 U G96
2018-01-19 04:10:17 C 03 01 08.64 -15 15 16.4 U G96
2018-01-19 04:18:26 C 03 01 09.03 -15 15 09.9 U G96
2018-01-19 04:26:36 C 03 01 09.42 -15 15 03.3 U G96
2018-01-20 03:37:51 C 03 02 17.42 -14 56 36.9 U 703