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
2016-11-05 12:53:59 C 11 40 06.32 +04 14 39.8 q G96
2017-01-07 12:33:08 C 14 26 28.69 -12 44 11.9 q G96
2017-01-07 12:39:21 C 14 26 29.22 -12 44 14.7 q G96
2017-01-07 12:45:31 C 14 26 29.76 -12 44 17.4 q G96
2017-01-07 12:51:43 C 14 26 30.33 -12 44 20.2 q G96
2017-03-03 10:15:16 C 15 46 59.92 -18 51 30.7 R G45
2017-03-03 10:15:54 C 15 46 59.94 -18 51 30.6 R G45
2017-03-03 10:22:02 C 15 47 00.09 -18 51 31.9 R G45
2017-03-03 10:22:51 C 15 47 00.11 -18 51 31.7 R G45
2017-03-03 10:28:56 C 15 47 00.28 -18 51 32.6 R G45
2017-03-03 10:35:58 C 15 47 00.42 -18 51 33.2 R G45
2017-03-03 10:43:04 C 15 47 00.61 -18 51 34.5 R G45
2017-03-03 10:49:59 C 15 47 00.76 -18 51 35.1 R G45
2017-03-04 12:01:47 C 15 47 38.43 -18 54 32.2 q G96
2017-03-04 12:09:56 C 15 47 38.62 -18 54 32.8 q G96
2017-03-04 12:18:04 C 15 47 38.79 -18 54 33.7 q G96
2017-03-04 12:26:12 C 15 47 38.97 -18 54 34.7 q G96
2017-03-27 14:45:16 C 15 50 19.956 -19 26 56.72 L F51
2017-03-27 14:59:38 C 15 50 19.716 -19 26 56.70 L F51
2017-03-27 15:14:06 C 15 50 19.469 -19 26 56.71 L F51
2017-03-30 03:31:47 C 15 49 17.78 -19 26 42.8 o Z22
2017-03-30 03:47:50 C 15 49 17.49 -19 26 43.3 o Z22
2017-04-05 12:03:04 C 15 45 34.868 -19 22 50.04 L F51
2017-04-05 12:19:05 C 15 45 34.366 -19 22 49.42 L F51
2017-04-05 12:35:08 C 15 45 33.867 -19 22 48.77 L F51
2017-04-05 12:51:08 C 15 45 33.362 -19 22 48.16 L F51
2017-04-06 13:40:45 C 15 44 48.41 -19 21 42.5 L T05
2017-04-06 14:02:50 C 15 44 47.66 -19 21 41.8 L T05
2017-04-06 14:18:15 C 15 44 47.14 -19 21 41.6 L T05
2017-04-06 14:27:02 C 15 44 46.90 -19 21 40.4 L T05
2017-04-18 17:00:46 C 15 33 30.68 -18 59 52.4 q Q60
2017-04-18 17:02:36 C 15 33 30.63 -18 59 51.7 q Q60
2017-04-18 17:09:55 C 15 33 30.27 -18 59 51.9 q Q60
2017-04-18 17:11:48 C 15 33 30.19 -18 59 51.5 q Q60
2017-04-18 17:19:20 C 15 33 29.79 -18 59 50.2 q Q60
2017-04-18 17:21:08 C 15 33 29.61 -18 59 49.7 q Q60
2017-05-01 09:23:33 C 15 18 24.97 -18 22 05.5 q G96
2017-05-01 09:32:25 C 15 18 24.48 -18 22 04.0 q G96
2017-05-01 09:38:33 C 15 18 24.16 -18 22 03.1 q G96
2017-05-01 09:44:40 C 15 18 23.83 -18 22 02.4 q G96
2017-05-14 11:14:16 C 15 02 36.70 -17 35 25.4 L T05
2017-05-14 11:33:19 C 15 02 35.69 -17 35 22.8 L T05
2017-05-14 11:52:12 C 15 02 34.79 -17 35 18.6 L T05
2017-05-14 12:30:44 C 15 02 32.88 -17 35 14.4 L T05
2017-05-17 03:04:18 C 14 59 39.66 -17 26 06.5 18.2 q W77
2017-05-17 03:28:41 C 14 59 38.52 -17 26 03.2 18.8 q W77
2017-05-17 03:53:03 C 14 59 37.41 -17 25 59.6 19.2 q W77
2017-05-18 07:48:19 C 14 58 22.673 -17 21 57.80 L F51
2017-05-18 08:05:15 C 14 58 21.896 -17 21 55.47 L F51
2017-05-18 08:39:00 C 14 58 20.348 -17 21 50.75 L F51