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
2022-01-06 06:21:44 C 05 33 13.59 -13 11 05.3 V 703
2022-01-06 06:29:25 C 05 33 13.23 -13 11 02.0 V 703
2022-01-06 06:37:07 C 05 33 12.88 -13 10 58.5 V 703
2022-01-06 06:44:49 C 05 33 12.57 -13 10 56.6 V 703
2022-01-07 09:04:02 C 05 32 07.39 -12 59 57.9 V T05
2022-01-07 09:11:33 C 05 32 07.03 -12 59 55.4 V T05
2022-01-07 09:16:10 C 05 32 06.88 -12 59 53.1 V T05
2022-01-07 09:20:47 C 05 32 06.67 -12 59 50.8 V T05
2022-01-07 09:30:54 C 05 32 06.21 -12 59 46.8 V T05
2022-01-08 07:35:56 C 05 31 13.323 -12 50 24.22 U F52
2022-01-08 07:50:41 C 05 31 12.716 -12 50 17.91 U F52
2022-01-08 08:20:21 C 05 31 11.509 -12 50 05.23 U F52
2022-01-09 05:35:03 C 05 30 21.89 -12 40 56.1 V 703
2022-01-09 05:42:34 C 05 30 21.55 -12 40 52.8 V 703
2022-01-09 05:50:06 C 05 30 21.24 -12 40 48.1 V 703
2022-01-09 05:57:38 C 05 30 20.94 -12 40 44.1 V 703
2022-01-09 07:29:06 C 05 30 17.58 -12 40 04.8 V T08
2022-01-09 07:33:07 C 05 30 17.43 -12 40 02.9 V T08
2022-01-09 08:19:57 C 05 30 15.53 -12 39 43.9 V T08
2022-01-09 09:01:58 C 05 30 13.93 -12 39 23.7 V T08
2022-01-12 08:28:09 C 05 27 38.22 -12 07 30.5 V T08
2022-01-12 09:17:56 C 05 27 36.44 -12 07 06.9 V T08
2022-01-12 09:22:34 C 05 27 36.25 -12 07 05.2 V T08
2022-01-12 09:33:51 C 05 27 35.85 -12 06 59.8 V T08
2022-01-20 07:57:13 C 05 22 00.970 -10 36 13.48 U F52
2022-01-20 07:58:07 C 05 22 00.944 -10 36 12.90 U F52
2022-01-20 08:11:58 C 05 22 00.593 -10 36 06.13 U F52
2022-01-20 08:12:52 C 05 22 00.571 -10 36 05.79 U F52
2022-01-20 08:26:38 C 05 22 00.222 -10 35 58.98 U F52
2022-01-20 08:27:33 C 05 22 00.194 -10 35 58.43 U F52
2022-01-20 08:41:18 C 05 21 59.839 -10 35 51.70 U F52
2022-01-20 08:42:13 C 05 21 59.822 -10 35 51.27 U F52
2022-01-25 06:44:09 C 05 19 30.68 -09 36 55.3 V 703
2022-01-25 06:51:57 C 05 19 30.51 -09 36 52.4 V 703
2022-01-25 06:59:45 C 05 19 30.28 -09 36 47.8 V 703
2022-01-25 07:07:34 C 05 19 30.06 -09 36 44.4 V 703
2022-01-25 07:45:01 C 05 19 29.65 -09 36 24.4 V T08
2022-01-25 07:49:40 C 05 19 29.52 -09 36 22.8 V T08
2022-01-25 08:03:42 C 05 19 29.24 -09 36 14.3 V T08
2022-01-25 08:19:04 C 05 19 28.95 -09 36 06.9 V T08
2022-01-26 06:38:02 C 05 19 05.960 -09 24 51.36 U F52
2022-01-26 06:54:37 C 05 19 05.663 -09 24 42.94 U F52
2022-01-26 07:11:07 C 05 19 05.372 -09 24 34.64 U F52
2022-01-26 07:27:37 C 05 19 05.061 -09 24 25.98 U F52
2022-01-27 08:21:15 C 05 18 41.10 -09 11 50.1 V T05
2022-01-27 08:52:27 C 05 18 40.58 -09 11 34.6 V T05
2022-01-27 08:58:30 C 05 18 40.48 -09 11 30.9 V T05
2022-01-27 09:06:26 C 05 18 40.38 -09 11 27.5 V T05
2022-01-31 06:11:05 C 05 17 28.29 -08 24 09.4 V T05
2022-01-31 06:13:43 C 05 17 28.23 -08 24 07.0 V T05