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
2020-01-30 12:42:27 C 10 29 26.902 -01 22 03.39 U F52
2020-02-16 07:22:03 C 10 15 42.84 +00 23 51.9 V G96
2020-02-16 07:30:09 C 10 15 42.53 +00 23 54.4 V G96
2020-02-16 07:38:12 C 10 15 42.23 +00 23 56.8 V G96
2020-02-16 07:46:17 C 10 15 41.93 +00 23 59.2 V G96
2020-02-19 01:30:06 C 10 13 13.51 +00 44 36.4 V C95
2020-02-19 01:39:08 C 10 13 13.18 +00 44 39.7 V C95
2020-02-27 06:09:21 C 10 05 42.84 +01 50 16.4 V G96
2020-02-27 06:16:43 C 10 05 42.55 +01 50 18.9 V G96
2020-02-27 06:24:05 C 10 05 42.26 +01 50 21.6 V G96
2020-02-27 06:31:28 C 10 05 41.97 +01 50 24.1 V G96
2020-02-27 06:32:49 C 10 05 41.93 +01 50 24.0 V 703
2020-02-27 06:55:25 C 10 05 40.94 +01 50 31.8 V 703
2020-03-03 09:14:27 C 10 01 03.666 +02 33 24.47 U F52
2020-03-03 09:31:41 C 10 01 03.012 +02 33 30.39 U F52
2020-03-03 10:06:24 C 10 01 01.699 +02 33 42.86 U F52
2020-03-12 08:00:58 C 09 53 22.059 +03 49 49.30 U F52
2020-03-12 08:39:01 C 09 53 20.736 +03 50 02.75 U F52
2020-03-12 08:58:11 C 09 53 20.078 +03 50 09.66 U F52
2020-03-15 05:38:55 C 09 51 02.99 +04 14 23.6 V G96
2020-03-15 05:47:02 C 09 51 02.73 +04 14 26.4 V G96
2020-03-15 06:09:11 C 09 51 02.00 +04 14 35.8 V G96
2020-03-15 06:17:19 C 09 51 01.69 +04 14 37.1 V G96
2020-03-23 13:33:37 C 09 45 03.21 +05 22 54.6 q D29
2020-03-23 13:53:59 C 09 45 02.68 +05 23 01.6 q D29
2020-03-23 14:14:21 C 09 45 02.05 +05 23 08.4 q D29
2020-04-12 06:58:49 C 09 35 50.470 +07 42 21.61 U F52
2020-04-12 07:15:05 C 09 35 50.281 +07 42 25.72 U F52
2020-04-12 07:31:18 C 09 35 50.083 +07 42 29.92 U F52
2020-04-17 07:38:03 C 09 34 44.692 +08 11 06.54 U F51
2020-04-17 07:55:25 C 09 34 44.561 +08 11 11.41 U F51
2020-04-17 08:12:43 C 09 34 44.433 +08 11 15.42 U F51
2020-11-28 13:03:04 C 13 37 22.61 -03 36 40.5 U I41
2020-11-28 13:09:48 C 13 37 23.11 -03 36 42.0 U I41
2020-11-28 13:16:33 C 13 37 23.59 -03 36 43.6 U I41
2020-11-28 13:23:19 C 13 37 24.10 -03 36 45.2 U I41
2020-11-30 13:18:45 C 13 41 02.29 -03 47 00.0 U I41
2020-12-02 13:06:54 C 13 44 41.86 -03 56 59.4 U I41
2020-12-02 13:13:39 C 13 44 42.38 -03 57 00.9 U I41
2020-12-02 13:27:09 C 13 44 43.40 -03 57 03.5 U I41
2020-12-02 13:33:56 C 13 44 43.92 -03 57 04.7 U I41
2020-12-04 13:14:27 C 13 48 25.04 -04 06 47.1 U I41
2020-12-04 13:21:13 C 13 48 25.55 -04 06 48.8 U I41
2020-12-05 13:16:21 C 13 50 17.29 -04 11 33.7 U I41
2020-12-05 13:23:11 C 13 50 17.80 -04 11 35.2 U I41
2020-12-05 13:30:00 C 13 50 18.32 -04 11 36.7 U I41
2020-12-05 13:36:47 C 13 50 18.86 -04 11 37.7 U I41
2020-12-06 13:09:47 C 13 52 09.41 -04 16 14.8 U I41
2020-12-06 13:16:32 C 13 52 09.92 -04 16 16.3 U I41
2020-12-06 13:23:15 C 13 52 10.44 -04 16 17.6 U I41