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
2013-04-01 04:46:57 C 11 14 23.71 +09 02 47.7 q H21
2013-04-01 04:50:13 C 11 14 23.71 +09 02 49.7 u 703
2013-04-01 05:01:33 C 11 14 23.02 +09 02 54.5 u 703
2013-04-01 05:12:57 C 11 14 22.63 +09 03 01.9 u 703
2013-04-01 05:24:21 C 11 14 22.09 +09 03 07.4 u 703
2013-04-13 20:29:40 C 11 02 22.65 +11 25 34.1 c A24
2013-04-13 20:31:44 C 11 02 22.47 +11 25 35.0 c A24
2013-04-13 20:59:18 C 11 02 21.48 +11 25 47.6 c A24
2013-04-13 21:57:00 C 11 02 19.45 +11 26 11.1 c A24
2013-04-13 21:59:04 C 11 02 19.38 +11 26 12.3 c A24
2013-04-14 20:52:01 C 11 01 33.04 +11 35 42.7 c A24
2013-04-14 20:54:04 C 11 01 32.92 +11 35 43.6 c A24
2013-04-14 21:12:15 C 11 01 32.31 +11 35 51.0 c A24
2013-04-14 21:51:12 C 11 01 30.94 +11 36 07.2 c A24
2013-04-14 21:53:16 C 11 01 30.88 +11 36 07.5 c A24
2013-04-25 01:33:39 C 10 54 41.89 +13 04 50.7 u H21
2013-04-25 01:40:01 C 10 54 41.74 +13 04 52.6 u H21
2013-04-25 01:46:41 C 10 54 41.58 +13 04 55.0 u H21
2013-04-25 01:56:01 C 10 54 41.38 +13 04 57.8 u H21
2013-04-27 13:46:37 C 10 53 26.27 +13 23 09.4 r D29
2013-04-27 14:08:49 C 10 53 25.87 +13 23 17.0 r D29
2013-04-27 14:31:08 C 10 53 25.38 +13 23 23.5 r D29
2013-04-29 05:36:23 C 10 52 42.06 +13 34 28.5 u 703
2013-04-29 05:43:44 C 10 52 41.95 +13 34 31.0 u 703
2013-04-29 05:50:59 C 10 52 41.80 +13 34 33.3 u 703
2013-04-29 05:58:18 C 10 52 41.66 +13 34 35.2 u 703
2013-06-11 04:19:26 C 11 00 14.86 +15 08 12.4 u 703
2013-06-11 04:27:23 C 11 00 15.12 +15 08 11.1 u 703
2013-06-11 04:35:24 C 11 00 15.30 +15 08 10.6 u 703
2013-06-11 04:42:42 C 11 00 15.55 +15 08 09.9 u 703
2013-06-21 03:57:02 C 11 08 27.67 +14 44 58.1 u 703
2013-06-21 04:04:23 C 11 08 27.96 +14 44 56.8 u 703
2013-06-21 04:11:40 C 11 08 28.06 +14 44 55.3 u 703
2013-06-21 04:18:59 C 11 08 28.39 +14 44 55.7 u 703
2014-11-09 08:22:05 C 08 17 50.25 -04 46 06.5 u 807
2014-11-09 08:32:18 C 08 17 50.25 -04 46 09.7 u 807
2014-11-09 08:39:30 C 08 17 50.23 -04 46 10.9 u 807
2014-11-23 08:01:43 C 08 15 51.89 -05 59 06.6 u 807
2014-11-23 08:06:16 C 08 15 51.84 -05 59 07.6 u 807
2014-11-23 08:10:59 C 08 15 51.75 -05 59 08.1 u 807
2014-11-23 08:15:03 C 08 15 51.67 -05 59 08.8 u 807
2014-11-23 08:20:02 C 08 15 51.63 -05 59 09.8 u 807
2014-11-23 14:28:43 C 08 15 46.988 -06 00 22.18 L F51
2014-11-23 14:45:08 C 08 15 46.765 -06 00 25.34 L F51
2014-11-23 15:01:34 C 08 15 46.548 -06 00 28.35 L F51
2014-11-23 15:17:59 C 08 15 46.324 -06 00 31.47 L F51
2014-12-07 11:36:10 C 08 09 25.605 -06 50 40.95 L F51
2014-12-07 11:53:04 C 08 09 25.149 -06 50 42.33 L F51
2014-12-07 12:09:54 C 08 09 24.716 -06 50 44.50 L F51
2014-12-07 12:26:12 C 08 09 24.300 -06 50 46.19 L F51