4503 Cleobulus (1989 WM)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5247715860 ± 6.05e-09
Semi-major axis (a)2.7035835322 AU ± 1.33e-09
Inclination (i)2.51280034° ± 1.53e-07
Long. of Asc. Node (Ω)45.94067668° ± 5.73e-06
Arg. of Perihelion (ω)76.23561973° ± 6.51e-06
Mean Anomaly (M)16.49835791° ± 8.80e-07
Mean Motion (n)0.2217188348°/day ± 1.64e-10
Perihelion dist (q)1.28481971 AU ± 1.64e-08
Aphelion dist (Q)4.12234735 AU ± 1.65e-08
Orbital Period4.44538816 yr ± 3.29e-09
Physical Parameters
H (abs. magnitude)15.82
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.011″
Uncertainty0
Orbit TypeAmor
MOID0.304177 AU
Observations Used1182
Gaia Obs Used157
Oppositions29
Arc Total1980-2026
First Observation Used1980-12-30
Last Observation Used2026-02-18
Observations (1304)
Date Type RA Dec Mag Band Observatory
2020-11-04 10:18:38 C 01 32 29.05 +08 29 41.6 V T08
2020-11-04 10:55:25 C 01 32 27.09 +08 29 34.2 V T08
2020-11-05 03:15:39 C 01 31 38.91 +08 26 11.5 V V19
2020-11-05 03:45:55 C 01 31 37.36 +08 26 05.5 V V19
2020-11-05 05:28:52 C 01 31 32.06 +08 25 44.8 V G96
2020-11-05 05:36:18 C 01 31 31.67 +08 25 43.3 V G96
2020-11-05 05:43:46 C 01 31 31.29 +08 25 41.8 V G96
2020-11-05 05:51:16 C 01 31 30.90 +08 25 40.3 V G96
2020-11-05 10:20:47 C 01 31 17.34 +08 24 47.2 V T05
2020-11-05 10:28:11 C 01 31 16.96 +08 24 45.8 V T05
2020-11-05 10:32:26 C 01 31 16.74 +08 24 45.0 V T05
2020-11-06 13:56:02 C 01 29 55.99 +08 19 23.7 q Q68
2020-11-06 13:58:12 C 01 29 55.88 +08 19 23.8 q Q68
2020-11-06 14:02:35 C 01 29 55.65 +08 19 22.9 q Q68
2020-11-06 21:03:57 C 01 29 35.40 +08 17 47.4 V 130
2020-11-06 21:06:07 C 01 29 35.30 +08 17 47.2 V 130
2020-11-06 21:08:15 C 01 29 35.19 +08 17 46.4 V 130
2020-11-06 21:10:25 C 01 29 35.05 +08 17 46.2 V 130
2020-11-07 09:26:32 C 01 28 59.21 +08 15 25.8 V T08
2020-11-07 09:31:10 C 01 28 58.99 +08 15 25.1 V T08
2020-11-07 09:45:46 C 01 28 58.25 +08 15 22.2 V T08
2020-11-07 10:01:07 C 01 28 57.47 +08 15 19.4 V T08
2020-11-08 20:58:00 C 01 27 17.50 +08 08 34.6 a 233
2020-11-08 21:04:26 C 01 27 17.19 +08 08 33.4 a 233
2020-11-08 21:11:09 C 01 27 16.84 +08 08 32.0 a 233
2020-11-09 04:05:24 C 01 26 57.53 +08 07 16.1 V V19
2020-11-09 04:45:15 C 01 26 55.56 +08 07 08.6 V V19
2020-11-09 05:23:24 C 01 26 53.69 +08 07 01.5 V V19
2020-11-09 15:35:09 C 01 26 24.63 +08 05 18.6 q Q68
2020-11-09 15:37:20 C 01 26 24.44 +08 05 17.3 q Q68
2020-11-09 15:39:31 C 01 26 24.42 +08 05 16.8 q Q68
2020-11-09 15:41:42 C 01 26 24.30 +08 05 16.0 q Q68
2020-11-10 09:06:20 C 01 25 36.290 +08 01 58.61 U F51
2020-11-10 09:20:58 C 01 25 35.584 +08 01 56.00 U F51
2020-11-10 09:35:09 C 01 25 34.895 +08 01 53.41 U F51
2020-11-10 11:01:32 C 01 25 30.73 +08 01 37.7 V T05
2020-11-10 11:09:29 C 01 25 30.35 +08 01 35.9 V T05
2020-11-10 11:30:06 C 01 25 29.36 +08 01 32.4 V T05
2020-11-10 11:41:22 C 01 25 28.86 +08 01 30.3 V T05
2020-11-10 11:54:24 C 01 25 28.20 +08 01 28.1 V T05
2020-11-10 12:56:32 C 01 25 25.68 +08 01 25.8 q Q68
2020-11-10 12:58:44 C 01 25 25.60 +08 01 25.0 q Q68
2020-11-10 13:00:55 C 01 25 25.51 +08 01 24.9 q Q68
2020-11-10 13:03:06 C 01 25 25.36 +08 01 24.8 q Q68
2020-11-10 13:31:38 C 01 25 24.29 +08 01 09.1 q D29
2020-11-10 13:52:01 C 01 25 23.31 +08 01 05.6 q D29
2020-11-10 14:01:16 C 01 25 22.59 +08 01 13.8 q Q68
2020-11-10 14:03:28 C 01 25 22.46 +08 01 13.0 q Q68
2020-11-10 14:05:40 C 01 25 22.40 +08 01 12.7 q Q68
2020-11-10 14:12:22 C 01 25 22.33 +08 01 01.9 q D29