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
2022-01-31 06:18:59 C 05 17 28.19 -08 24 04.7 V T05
2022-01-31 06:29:34 C 05 17 28.07 -08 23 59.4 V T05
2022-02-03 04:42:24 C 05 16 50.89 -07 48 18.1 V G96
2022-02-03 04:49:54 C 05 16 50.83 -07 48 14.2 V G96
2022-02-03 04:57:23 C 05 16 50.77 -07 48 10.6 V G96
2022-02-03 05:04:52 C 05 16 50.73 -07 48 06.9 V G96
2022-02-09 02:07:44 C 05 16 19.71 -06 36 59.8 V G96
2022-02-09 02:15:57 C 05 16 19.70 -06 36 55.2 V G96
2022-02-09 02:24:11 C 05 16 19.69 -06 36 51.2 V G96
2022-02-09 02:32:26 C 05 16 19.68 -06 36 47.2 V G96
2022-03-07 02:25:32 C 05 23 47.27 -01 48 57.9 V G96
2022-03-07 02:33:36 C 05 23 47.42 -01 48 55.0 V G96
2022-03-07 02:41:39 C 05 23 47.61 -01 48 51.4 V G96
2022-03-07 02:49:42 C 05 23 47.80 -01 48 48.0 V G96
2022-12-20 09:01:56 C 09 12 28.170 -04 13 25.10 V G96
2022-12-20 09:09:22 C 09 12 28.098 -04 13 25.39 V G96
2022-12-20 09:16:48 C 09 12 27.943 -04 13 25.46 V G96
2022-12-20 09:24:14 C 09 12 27.788 -04 13 26.29 V G96
2022-12-23 20:26:22 C 09 10 46.55 -04 14 48.3 V D29
2022-12-23 20:46:44 C 09 10 46.08 -04 14 49.0 V D29
2022-12-23 21:07:06 C 09 10 45.65 -04 14 49.1 V D29
2023-01-26 07:26:39 C 08 45 45.522 -02 54 40.43 V G96
2023-01-26 07:34:05 C 08 45 45.245 -02 54 38.45 V G96
2023-01-26 07:41:32 C 08 45 44.960 -02 54 36.76 V G96
2023-01-26 07:49:00 C 08 45 44.680 -02 54 35.14 V G96
2023-03-21 07:01:45 C 08 09 36.763 +03 08 27.87 U F51
2023-03-21 07:20:51 C 08 09 36.545 +03 08 33.20 U F51
2023-03-21 07:40:28 C 08 09 36.322 +03 08 38.59 U F51
2023-03-21 07:59:27 C 08 09 36.116 +03 08 43.72 U F51
2023-12-18 15:13:25 C 11 21 15.550 -02 36 56.85 X F51
2023-12-18 15:25:35 C 11 21 15.694 -02 36 57.55 X F51
2023-12-18 15:37:45 C 11 21 15.840 -02 36 58.28 X F51
2024-02-08 12:35:09 C 11 11 35.076 -00 31 16.05 X F52
2024-02-08 12:52:53 C 11 11 34.536 -00 31 11.14 X F52
2024-02-08 13:10:41 C 11 11 33.995 -00 31 06.08 X F52
2024-02-08 13:28:27 C 11 11 33.456 -00 31 01.06 X F52
2024-03-01 10:37:31 C 10 52 36.111 +02 35 03.17 X F51
2024-03-01 10:54:36 C 10 52 35.393 +02 35 10.17 X F51
2024-03-01 11:11:38 C 10 52 34.685 +02 35 17.09 X F51
2024-03-01 11:28:39 C 10 52 33.969 +02 35 24.09 X F51
2024-03-05 06:21:46 C 10 48 49.763 +03 13 02.17 V G96
2024-03-05 06:29:20 C 10 48 49.442 +03 13 05.45 V G96
2024-03-05 06:36:56 C 10 48 49.129 +03 13 08.58 V G96
2024-03-05 06:44:29 C 10 48 48.805 +03 13 11.71 V G96
2024-03-07 16:25:58 C 10 46 25.400 +03 37 30.53 O18
2024-03-07 17:54:01 C 10 46 21.664 +03 38 07.86 O18
2024-03-08 14:22:02 C 10 45 30.960 +03 46 48.86 O18
2024-03-08 16:16:00 C 10 45 26.114 +03 47 37.37 O18
2024-03-09 16:38:29 C 10 44 25.525 +03 57 59.90 O18
2024-03-09 16:40:33 C 10 44 25.447 +03 58 00.56 O18