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
2012-01-21 02:25:32 C 01 01 18.53 +06 48 29.4 19.8 c 704
2012-01-21 02:33:39 C 01 01 19.09 +06 48 33.2 r 703
2012-01-21 02:42:37 C 01 01 19.66 +06 48 36.8 r 703
2012-01-21 02:44:00 C 01 01 19.71 +06 48 38.6 19.6 c 704
2012-01-21 02:51:38 C 01 01 20.24 +06 48 42.0 r 703
2012-01-21 03:02:26 C 01 01 21.04 +06 48 46.9 19.8 c 704
2012-02-19 03:24:14 C 01 58 06.38 +12 55 51.5 r G96
2012-02-19 03:31:46 C 01 58 07.10 +12 55 55.8 r G96
2012-02-19 03:39:16 C 01 58 07.78 +12 56 00.1 r G96
2012-02-19 03:46:52 C 01 58 08.50 +12 56 04.3 r G96
2012-02-25 02:23:34 C 02 12 14.94 +14 17 13.0 r 703
2012-02-25 02:38:16 C 02 12 16.34 +14 17 22.2 r 703
2012-02-25 02:45:46 C 02 12 17.20 +14 17 25.8 r 703
2012-03-16 02:36:59 C 03 06 03.81 +18 46 12.2 r G96
2012-03-16 02:46:57 C 03 06 05.00 +18 46 17.6 r G96
2012-03-16 02:56:51 C 03 06 06.22 +18 46 22.7 r G96
2012-03-16 03:06:47 C 03 06 07.41 +18 46 28.1 r G96
2013-06-17 12:07:54 C 17 33 30.85 -25 33 13.9 q Q62
2013-06-17 12:10:17 C 17 33 30.73 -25 33 14.4 q Q62
2013-06-17 12:12:36 C 17 33 30.57 -25 33 13.9 q Q62
2014-06-24 03:28:58 C 20 45 03.20 -21 13 11.8 t 950
2014-06-24 03:31:45 C 20 45 03.10 -21 13 12.5 t 950
2014-06-24 03:34:38 C 20 45 03.00 -21 13 12.6 t 950
2014-06-24 03:37:25 C 20 45 02.97 -21 13 13.0 t 950
2014-06-24 03:40:12 C 20 45 02.88 -21 13 13.3 t 950
2014-06-24 03:49:51 C 20 45 02.67 -21 13 14.6 t 950
2014-06-24 03:52:54 C 20 45 02.55 -21 13 14.8 t 950
2014-06-24 03:56:23 C 20 45 02.47 -21 13 14.9 t 950
2014-07-29 08:38:19 C 20 18 02.671 -22 59 11.67 L F51
2014-07-29 08:55:48 C 20 18 02.034 -22 59 13.47 L F51
2014-07-29 09:30:48 C 20 18 00.742 -22 59 17.99 L F51
2014-07-30 09:10:39 C 20 17 09.905 -23 01 57.92 L F51
2014-07-30 09:27:50 C 20 17 09.277 -23 02 00.12 L F51
2014-07-30 10:02:08 C 20 17 08.007 -23 02 03.96 L F51
2015-07-23 12:05:59 C 23 18 35.953 -07 45 33.93 L F51
2015-07-23 12:23:43 C 23 18 35.727 -07 45 35.81 L F51
2015-07-23 12:41:08 C 23 18 35.493 -07 45 37.76 L F51
2015-07-23 12:58:28 C 23 18 35.257 -07 45 39.69 L F51
2015-07-24 12:36:55 C 23 18 16.894 -07 48 17.41 L F51
2015-07-24 12:54:55 C 23 18 16.639 -07 48 19.37 L F51
2015-07-24 13:12:52 C 23 18 16.380 -07 48 21.55 L F51
2015-07-24 13:30:37 C 23 18 16.127 -07 48 23.57 L F51
2015-08-14 12:02:17 C 23 07 24.384 -09 08 36.49 L F51
2015-08-14 12:19:55 C 23 07 23.854 -09 08 40.18 L F51
2015-08-14 12:37:31 C 23 07 23.317 -09 08 43.60 L F51
2015-08-18 06:50:42 C 23 04 37.95 -09 27 12.9 o 691
2015-08-18 07:17:47 C 23 04 37.10 -09 27 18.7 o 691
2016-11-05 12:45:58 C 11 40 05.33 +04 14 46.4 q G96
2016-11-05 12:48:39 C 11 40 05.59 +04 14 45.0 q G96
2016-11-05 12:51:19 C 11 40 05.96 +04 14 42.6 q G96