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
2020-12-06 13:30:00 C 13 52 10.96 -04 16 18.9 U I41
2020-12-06 13:36:44 C 13 52 11.49 -04 16 20.4 U I41
2020-12-11 13:19:13 C 14 01 41.72 -04 38 40.7 U I41
2020-12-11 13:26:03 C 14 01 42.25 -04 38 42.1 U I41
2020-12-11 13:32:52 C 14 01 42.80 -04 38 43.5 U I41
2020-12-11 13:39:43 C 14 01 43.36 -04 38 44.8 U I41
2020-12-12 13:26:36 C 14 03 38.36 -04 42 56.3 U I41
2020-12-12 13:33:28 C 14 03 38.90 -04 42 58.0 U I41
2020-12-13 13:26:43 C 14 05 35.03 -04 47 05.6 U I41
2020-12-13 13:40:17 C 14 05 36.15 -04 47 08.8 U I41
2021-01-02 12:56:06 C 14 46 45.13 -05 48 14.1 V G96
2021-01-02 13:04:14 C 14 46 45.87 -05 48 14.7 V G96
2021-01-02 13:12:20 C 14 46 46.59 -05 48 15.4 V G96
2021-01-02 13:20:28 C 14 46 47.33 -05 48 16.0 V G96
2021-01-03 12:40:45 C 14 48 55.35 -05 49 59.6 V 703
2021-01-03 12:48:32 C 14 48 55.99 -05 50 00.4 V 703
2021-01-03 12:56:19 C 14 48 56.75 -05 49 59.7 V 703
2021-01-03 13:04:06 C 14 48 57.52 -05 50 00.4 V 703
2021-01-14 14:55:24 C 15 14 16.83 -05 59 14.0 V T08
2021-01-14 15:00:03 C 15 14 17.29 -05 59 16.7 V T08
2021-01-14 15:10:39 C 15 14 18.30 -05 59 18.2 V T08
2021-01-14 15:40:59 C 15 14 21.36 -05 59 16.2 V T08
2021-01-16 12:24:58 C 15 18 48.91 -05 58 45.2 V 703
2021-01-16 12:32:23 C 15 18 49.74 -05 58 44.8 V 703
2021-01-16 12:39:47 C 15 18 50.48 -05 58 44.5 V 703
2021-01-16 12:47:12 C 15 18 51.20 -05 58 44.3 V 703
2021-01-16 14:41:21 C 15 19 02.75 -05 58 41.3 V T05
2021-01-16 14:47:17 C 15 19 03.35 -05 58 41.3 V T05
2021-01-16 14:55:12 C 15 19 04.17 -05 58 41.2 V T05
2021-01-16 15:10:23 C 15 19 05.68 -05 58 41.8 V T05
2021-01-18 15:11:29 C 15 23 57.42 -05 57 19.0 V T08
2021-01-18 15:17:28 C 15 23 58.07 -05 57 19.5 V T08
2021-01-18 15:26:46 C 15 23 58.97 -05 57 18.3 V T08
2021-01-18 15:44:01 C 15 24 00.69 -05 57 17.7 V T08
2021-01-18 15:55:18 C 15 24 01.81 -05 57 18.0 V T08
2021-01-30 14:23:54 C 15 54 44.11 -05 31 19.2 V T08
2021-01-30 14:28:34 C 15 54 44.59 -05 31 18.1 V T08
2021-01-30 14:37:12 C 15 54 45.63 -05 31 17.0 V T08
2021-01-30 14:52:27 C 15 54 47.29 -05 31 14.8 V T08
2021-02-01 14:24:05 C 16 00 11.75 -05 23 39.4 V T05
2021-02-01 14:28:07 C 16 00 12.23 -05 23 38.4 V T05
2021-02-01 14:36:03 C 16 00 13.11 -05 23 37.6 V T05
2021-02-01 14:50:51 C 16 00 14.77 -05 23 35.2 V T05
2021-02-11 15:01:09 C 16 29 10.14 -04 28 31.1 V T08
2021-02-11 15:11:07 C 16 29 11.38 -04 28 28.1 V T08
2021-02-11 15:47:06 C 16 29 15.92 -04 28 17.9 V T08
2021-02-13 14:15:24 C 16 35 12.02 -04 14 07.5 V T05
2021-02-13 14:20:02 C 16 35 12.60 -04 14 05.5 V T05
2021-02-13 14:28:36 C 16 35 13.68 -04 14 03.0 V T05
2021-02-13 14:43:46 C 16 35 15.67 -04 13 58.3 V T05