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
2006-05-02 00:26:59 C 20 33 44.09 +30 40 25.9 15.87 r 084
2006-05-02 00:29:07 C 20 33 44.66 +30 40 28.7 16.08 r 084
2006-05-08 23:25:42 C 21 22 21.55 +33 44 12.3 15.93 r 084
2006-05-08 23:27:55 C 21 22 22.21 +33 44 14.2 15.72 r 084
2006-05-09 23:47:55 C 21 29 42.62 +34 04 58.0 15.7 r 084
2006-05-23 09:43:02 C 23 08 00.58 +35 56 19.4 16.5 c 704
2006-05-23 09:58:52 C 23 08 05.29 +35 56 18.2 16.7 c 704
2006-05-23 10:14:49 C 23 08 10.04 +35 56 16.0 16.8 c 704
2006-09-30 10:18:49 C 06 30 32.02 -05 44 05.2 18.1 c 704
2006-09-30 10:36:30 C 06 30 32.46 -05 44 17.9 18.2 c 704
2006-09-30 10:54:12 C 06 30 33.01 -05 44 31.4 18.6 c 704
2006-09-30 11:11:55 C 06 30 33.37 -05 44 44.9 18.2 c 704
2006-10-12 02:42:02 C 06 35 19.24 -09 07 40.0 14.9 r 084
2006-10-12 02:45:12 C 06 35 19.25 -09 07 42.3 14.7 r 084
2006-10-30 03:07:22 C 06 31 17.75 -13 53 05.1 16.4 r 084
2006-11-13 09:15:51 C 06 18 25.34 -16 45 20.5 17.1 c 704
2006-11-13 09:33:47 C 06 18 24.43 -16 45 28.0 17.5 c 704
2006-11-13 09:51:44 C 06 18 23.49 -16 45 35.4 17.4 c 704
2006-11-13 10:09:57 C 06 18 22.62 -16 45 41.5 17.3 c 704
2006-11-23 00:09:06 C 06 05 47.18 -17 58 18.6 o 493
2006-11-23 00:53:42 C 06 05 44.41 -17 58 28.1 o 493
2006-11-23 01:23:15 C 06 05 42.65 -17 58 34.7 o 493
2006-11-24 00:13:07 C 06 04 20.18 -18 03 28.8 o 493
2006-11-24 00:29:17 C 06 04 19.21 -18 03 31.9 o 493
2006-11-24 00:58:54 C 06 04 17.37 -18 03 37.5 o 493
2006-11-25 09:00:12 C 06 02 19.68 -18 09 42.4 r 703
2006-11-25 09:08:48 C 06 02 19.03 -18 09 46.5 r 703
2006-11-25 09:17:23 C 06 02 18.67 -18 09 47.4 r 703
2006-11-25 09:26:02 C 06 02 18.16 -18 09 47.9 r 703
2006-12-10 05:40:30 C 05 39 29.48 -18 17 37.7 r 808
2006-12-10 05:53:59 C 05 39 28.54 -18 17 35.7 r 808
2006-12-10 06:03:29 C 05 39 27.92 -18 17 34.5 r 808
2006-12-18 12:50:28 C 05 27 15.85 -17 36 24.4 r E17
2006-12-18 12:55:32 C 05 27 15.54 -17 36 23.1 r E17
2006-12-18 13:00:37 C 05 27 15.21 -17 36 21.8 r E17
2006-12-24 06:19:16 C 05 19 37.84 -16 51 42.6 r 703
2006-12-24 06:28:37 C 05 19 37.38 -16 51 39.8 r 703
2006-12-24 06:38:00 C 05 19 36.87 -16 51 36.3 r 703
2006-12-24 06:47:25 C 05 19 36.33 -16 51 32.2 r 703
2006-12-28 10:21:59 C 05 14 38.43 -16 12 02.7 r E19
2006-12-28 10:29:40 C 05 14 38.10 -16 11 58.6 r E19
2006-12-28 10:38:05 C 05 14 37.77 -16 11 56.3 r E19
2007-02-17 02:26:05 C 04 57 59.18 -05 29 45.5 19.4 c 704
2007-02-17 02:43:01 C 04 57 59.41 -05 29 37.6 20.1 c 704
2007-02-17 03:18:04 C 04 57 59.91 -05 29 18.6 19.7 c 704
2007-02-17 03:35:02 C 04 58 00.19 -05 29 10.2 19.9 c 704
2007-02-23 03:11:43 C 05 00 36.18 -04 17 58.5 r 703
2007-02-23 03:21:04 C 05 00 36.25 -04 17 54.6 r 703
2007-02-23 03:30:19 C 05 00 36.54 -04 17 49.5 r 703
2007-02-23 03:39:35 C 05 00 36.61 -04 17 46.0 r 703