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
2007-12-14 11:52:50 C 12 29 39.08 -00 04 04.5 18.1 c 704
2007-12-20 12:01:48 C 12 46 40.90 -01 50 52.8 r 703
2007-12-20 12:11:15 C 12 46 41.98 -01 51 00.0 r 703
2007-12-20 12:20:41 C 12 46 43.10 -01 51 06.5 r 703
2007-12-20 12:30:16 C 12 46 44.14 -01 51 13.6 r 703
2008-01-09 11:06:39 C 13 37 26.16 -06 59 16.5 18.3 c 704
2008-01-09 11:25:30 C 13 37 27.94 -06 59 26.9 18.9 c 704
2008-01-09 11:44:19 C 13 37 29.69 -06 59 37.7 18.7 c 704
2008-01-09 12:03:05 C 13 37 31.46 -06 59 49.2 19.1 c 704
2008-01-09 12:21:52 C 13 37 33.24 -06 59 59.0 18.6 c 704
2008-01-20 11:34:34 C 14 00 59.25 -09 14 01.0 r G96
2008-01-20 11:42:31 C 14 00 59.94 -09 14 04.9 r G96
2008-01-20 11:50:24 C 14 01 00.55 -09 14 08.5 r G96
2008-01-20 11:58:12 C 14 01 01.20 -09 14 12.1 r G96
2008-02-11 10:52:45 C 14 36 10.12 -12 24 03.8 19.1 c 704
2008-02-11 11:10:33 C 14 36 10.93 -12 24 08.7 19.1 c 704
2008-02-11 11:28:26 C 14 36 11.76 -12 24 13.7 18.5 c 704
2008-02-11 11:46:14 C 14 36 12.60 -12 24 18.3 18.3 c 704
2008-02-11 12:04:17 C 14 36 13.45 -12 24 23.8 19.0 c 704
2008-03-11 09:15:41 C 14 51 33.44 -14 01 44.8 o 704
2008-03-11 09:31:52 C 14 51 33.29 -14 01 45.1 o 704
2008-03-11 09:48:02 C 14 51 33.15 -14 01 45.3 o 704
2008-03-11 10:04:21 C 14 51 32.99 -14 01 45.6 o 704
2008-03-11 10:20:31 C 14 51 32.83 -14 01 46.1 o 704
2008-03-29 10:04:48 C 14 41 11.11 -13 42 22.7 17.8 c 704
2008-03-29 10:22:09 C 14 41 10.35 -13 42 20.7 18.1 c 704
2008-03-29 10:39:31 C 14 41 09.66 -13 42 18.5 17.9 c 704
2008-03-29 10:56:55 C 14 41 08.92 -13 42 16.5 17.8 c 704
2008-03-29 11:14:19 C 14 41 08.21 -13 42 14.4 17.8 c 704
2008-04-06 06:53:02 C 14 32 54.59 -13 18 12.0 o 691
2008-04-06 07:18:23 C 14 32 53.33 -13 18 08.3 o 691
2008-04-06 07:43:45 C 14 32 52.05 -13 18 04.6 o 691
2008-04-07 08:35:45 C 14 31 39.80 -13 14 22.0 17.8 c 704
2008-04-07 08:52:32 C 14 31 38.92 -13 14 20.1 18.0 c 704
2008-04-07 09:09:17 C 14 31 38.07 -13 14 17.2 18.0 c 704
2008-04-07 09:26:41 C 14 31 37.22 -13 14 14.4 17.8 c 704
2008-04-07 09:43:22 C 14 31 36.33 -13 14 11.1 18.0 c 704
2008-04-14 06:06:05 C 14 23 18.28 -12 47 37.9 o 691
2008-04-14 06:31:26 C 14 23 16.92 -12 47 33.6 o 691
2008-04-14 06:56:48 C 14 23 15.56 -12 47 29.4 o 691
2008-04-14 07:08:57 C 14 23 14.89 -12 47 27.7 17.7 c 704
2008-04-14 07:24:55 C 14 23 14.04 -12 47 24.9 17.9 c 704
2008-04-14 07:40:55 C 14 23 13.21 -12 47 22.1 18.0 c 704
2008-04-14 07:56:51 C 14 23 12.32 -12 47 19.2 17.8 c 704
2008-04-14 08:12:44 C 14 23 11.49 -12 47 16.1 18.2 c 704
2008-04-14 08:56:53 C 14 23 09.02 -12 47 09.6 r 703
2008-04-14 09:08:51 C 14 23 08.37 -12 47 07.8 r 703
2008-04-14 09:20:51 C 14 23 07.76 -12 47 05.6 r 703
2008-04-14 09:32:50 C 14 23 07.11 -12 47 03.4 r 703
2008-04-15 09:16:29 C 14 21 53.49 -12 43 00.8 r G96