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
2008-04-15 09:24:44 C 14 21 53.06 -12 42 59.3 r G96
2008-04-15 09:32:53 C 14 21 52.63 -12 42 58.0 r G96
2008-04-15 09:40:59 C 14 21 52.20 -12 42 56.6 r G96
2008-04-23 04:40:29 C 14 12 18.69 -12 10 43.3 r 808
2008-04-23 04:51:29 C 14 12 18.18 -12 10 41.3 r 808
2008-04-23 05:01:00 C 14 12 17.72 -12 10 39.9 r 808
2008-04-24 23:43:03 C 14 10 11.46 -12 03 41.2 r 084
2008-04-25 08:39:07 C 14 09 45.36 -12 02 11.1 r G96
2008-04-25 08:47:41 C 14 09 45.00 -12 02 08.8 r G96
2008-04-25 08:56:19 C 14 09 44.49 -12 02 08.1 r G96
2008-04-25 09:04:58 C 14 09 44.06 -12 02 06.7 r G96
2008-04-25 09:08:34 C 14 09 43.81 -12 02 05.9 r 703
2008-04-25 09:17:53 C 14 09 43.38 -12 02 03.7 r 703
2008-04-25 09:27:13 C 14 09 42.87 -12 02 02.5 r 703
2008-04-25 09:36:34 C 14 09 42.44 -12 02 00.9 r 703
2008-04-27 07:17:19 C 14 07 31.83 -11 54 35.2 r G96
2008-04-27 07:27:01 C 14 07 31.36 -11 54 33.8 r G96
2008-04-27 07:36:41 C 14 07 30.90 -11 54 32.1 r G96
2008-04-27 07:46:22 C 14 07 30.43 -11 54 30.6 r G96
2008-04-28 08:26:45 C 14 06 21.40 -11 50 34.8 18.1 c 704
2008-04-28 08:42:20 C 14 06 20.59 -11 50 31.2 18.1 c 704
2008-04-28 08:57:54 C 14 06 19.82 -11 50 28.4 18.2 c 704
2008-04-28 09:13:45 C 14 06 19.04 -11 50 29.0 18.1 c 704
2008-04-28 09:29:22 C 14 06 18.35 -11 50 25.2 18.6 c 704
2008-05-02 07:40:18 C 14 02 07.76 -11 36 13.9 r 703
2008-05-02 07:49:06 C 14 02 07.36 -11 36 12.9 r 703
2008-05-02 07:57:56 C 14 02 06.97 -11 36 11.7 r 703
2008-05-02 08:06:46 C 14 02 06.57 -11 36 10.2 r 703
2008-05-03 23:15:02 C 14 00 29.08 -11 30 45.2 r 084
2008-05-05 07:11:48 C 13 59 12.57 -11 26 27.1 18.1 c 704
2008-05-05 07:26:29 C 13 59 11.95 -11 26 25.2 18.2 c 704
2008-05-05 07:41:13 C 13 59 11.35 -11 26 23.6 18.4 c 704
2008-05-05 07:55:58 C 13 59 10.74 -11 26 21.7 18.3 c 704
2008-05-05 08:10:43 C 13 59 10.10 -11 26 19.6 18.2 c 704
2008-05-13 06:02:28 C 13 52 40.67 -11 05 42.7 18.2 c 704
2008-05-13 06:17:43 C 13 52 40.17 -11 05 41.3 18.7 c 704
2008-05-13 06:32:53 C 13 52 39.73 -11 05 40.1 18.2 c 704
2008-05-13 06:48:03 C 13 52 39.25 -11 05 39.3 18.5 c 704
2008-05-13 07:03:12 C 13 52 38.74 -11 05 37.1 18.6 c 704
2008-07-01 11:49:12 C 13 54 15.44 -12 11 05.3 r E12
2008-07-01 11:54:48 C 13 54 15.55 -12 11 06.1 r E12
2008-07-01 12:05:57 C 13 54 15.91 -12 11 08.0 r E12
2010-08-05 11:40:37 C 21 28 09.813 -18 28 55.81 L F51
2010-08-05 11:55:36 C 21 28 09.283 -18 28 58.30 L F51
2011-09-12 07:20:54 C 01 20 06.00 +05 49 59.4 o H21
2011-09-12 07:27:17 C 01 20 05.88 +05 49 58.5 o H21
2011-09-12 07:40:30 C 01 20 05.60 +05 49 56.2 o H21
2011-09-20 05:18:21 C 01 14 58.88 +05 19 12.3 o 691
2011-09-20 05:43:52 C 01 14 57.96 +05 19 07.7 o 691
2011-09-20 06:09:24 C 01 14 57.13 +05 19 03.0 o 691