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
2002-11-04 09:48:37 C 19 47 54.36 -34 36 50.8 e 428
2002-11-04 09:50:59 C 19 47 55.23 -34 36 53.7 e 428
2002-11-04 09:53:22 C 19 47 56.07 -34 36 57.2 e 428
2002-11-04 09:55:45 C 19 47 56.94 -34 37 00.4 e 428
2002-11-24 10:18:02 C 22 31 40.79 -36 58 14.6 e 428
2002-11-24 10:22:26 C 22 31 42.06 -36 58 12.3 e 428
2002-11-24 10:26:49 C 22 31 43.26 -36 58 09.7 e 428
2002-11-25 10:16:57 C 22 38 25.79 -36 44 29.1 e 428
2002-11-25 10:21:19 C 22 38 27.01 -36 44 26.5 e 428
2002-11-25 10:25:41 C 22 38 28.18 -36 44 23.7 e 428
2003-01-06 10:05:32 C 01 30 40.33 -20 54 04.2 m 428
2003-01-06 10:11:53 C 01 30 41.01 -20 53 57.7 m 428
2003-02-19 17:38:53 C 03 04 35.56 -07 11 22.0 c 246
2003-02-19 17:39:54 C 03 04 35.68 -07 11 21.6 c 246
2003-02-19 17:40:50 C 03 04 35.76 -07 11 20.8 c 246
2003-02-19 17:41:47 C 03 04 35.84 -07 11 20.7 c 246
2003-02-19 17:42:43 C 03 04 35.89 -07 11 19.8 c 246
2006-02-02 11:32:32 C 15 15 30.52 -04 38 02.8 r 703
2006-02-02 11:41:56 C 15 15 31.32 -04 38 00.3 r 703
2006-02-02 11:51:30 C 15 15 32.14 -04 37 59.3 r 703
2006-02-02 12:00:52 C 15 15 32.97 -04 37 57.2 r 703
2006-03-05 11:43:01 C 16 27 51.66 +00 35 11.6 r 703
2006-03-05 11:50:49 C 16 27 52.52 +00 35 16.8 r 703
2006-03-05 11:58:51 C 16 27 53.38 +00 35 22.7 r 703
2006-03-05 12:06:46 C 16 27 54.25 +00 35 28.3 r 703
2006-03-14 01:18:46 C 16 51 51.56 +03 19 47.1 r A13
2006-03-14 01:20:53 C 16 51 51.86 +03 19 48.4 r A13
2006-03-14 01:31:23 C 16 51 53.15 +03 19 58.7 r A13
2006-03-14 01:35:41 C 16 51 53.66 +03 20 02.2 r A13
2006-03-24 10:49:28 C 17 24 47.93 +07 39 40.9 16.7 c 704
2006-03-24 11:05:50 C 17 24 50.22 +07 40 00.0 16.8 c 704
2006-03-24 11:32:19 C 17 24 53.92 +07 40 31.9 16.8 c 704
2006-04-09 08:37:05 C 18 27 00.13 +16 30 41.6 r H45
2006-04-09 08:38:13 C 18 27 00.36 +16 30 43.4 r H45
2006-04-09 08:40:36 C 18 27 00.80 +16 30 47.4 r H45
2006-04-19 09:15:28 C 19 16 42.10 +23 01 35.7 16.3 c 704
2006-04-19 09:30:26 C 19 16 45.43 +23 01 59.8 16.6 c 704
2006-04-19 09:45:23 C 19 16 48.83 +23 02 24.6 16.4 c 704
2006-04-19 10:00:21 C 19 16 52.19 +23 02 49.7 16.7 c 704
2006-04-19 10:15:25 C 19 16 55.52 +23 03 14.2 16.6 c 704
2006-04-23 23:04:05 C 19 42 42.81 +25 58 50.1 16.38 r 084
2006-04-23 23:06:12 C 19 42 43.33 +25 58 53.2 16.62 r 084
2006-04-25 23:08:00 C 19 54 47.26 +27 13 36.7 16.0 r 084
2006-04-25 23:10:07 C 19 54 47.80 +27 13 39.9 15.42 r 084
2006-04-26 23:11:55 C 20 00 59.30 +27 50 05.0 16.19 r 084
2006-04-27 23:55:07 C 20 07 27.73 +28 26 44.8 16.12 r 084
2006-04-27 23:57:15 C 20 07 28.31 +28 26 48.0 15.88 r 084
2006-05-01 00:07:31 C 20 26 58.27 +30 08 20.1 16.22 r 084
2006-05-01 00:09:38 C 20 26 58.88 +30 08 23.1 14.55 r 084
2006-05-01 23:46:16 C 20 33 32.74 +30 39 32.7 16.12 r 084