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
2017-05-19 03:04:20 C 14 57 31.85 -17 19 16.0 17.5 q W77
2017-05-19 03:40:54 C 14 57 30.10 -17 19 11.0 18.5 q W77
2017-05-19 04:11:23 C 14 57 28.69 -17 19 06.0 18.6 q W77
2017-05-24 10:31:18 C 14 52 18.61 -17 02 10.2 L T08
2017-05-24 10:55:03 C 14 52 17.63 -17 02 07.5 L T08
2017-05-24 11:18:56 C 14 52 16.73 -17 02 04.5 L T08
2017-05-24 11:42:55 C 14 52 15.75 -17 02 01.6 L T08
2017-05-25 10:23:17 C 14 51 24.65 -16 59 11.2 L T08
2017-05-25 10:47:01 C 14 51 23.81 -16 59 06.6 L T08
2017-05-25 11:10:56 C 14 51 22.78 -16 59 05.9 L T08
2017-05-25 11:35:04 C 14 51 21.90 -16 59 03.9 L T08
2017-05-27 07:34:01 C 14 49 47.176 -16 53 46.79 L F51
2017-05-27 07:51:55 C 14 49 46.518 -16 53 44.74 L F51
2017-05-27 08:10:00 C 14 49 45.858 -16 53 42.65 L F51
2017-05-27 08:28:04 C 14 49 45.193 -16 53 40.61 L F51
2017-05-30 09:52:50 C 14 47 19.00 -16 45 33.9 L T05
2017-05-30 10:17:05 C 14 47 18.19 -16 45 31.1 L T05
2017-05-30 11:05:03 C 14 47 16.61 -16 45 26.7 L T05
2017-05-30 11:28:40 C 14 47 15.87 -16 45 23.0 L T05
2019-08-08 11:14:02 C 21 41 42.815 -17 23 45.24 U F51
2019-08-08 11:28:15 C 21 41 42.317 -17 23 47.60 U F51
2019-08-09 11:52:16 C 21 40 51.527 -17 28 06.79 U F51
2019-08-09 12:06:59 C 21 40 50.985 -17 28 09.56 U F51
2019-08-09 12:21:43 C 21 40 50.490 -17 28 11.93 U F51
2019-08-09 12:36:27 C 21 40 49.961 -17 28 14.74 U F51
2019-08-22 07:18:29 C 21 29 58.50 -18 20 19.0 V G96
2019-08-22 07:26:44 C 21 29 58.27 -18 20 19.9 V G96
2019-08-22 07:34:59 C 21 29 57.89 -18 20 21.3 V G96
2019-08-22 07:43:14 C 21 29 57.67 -18 20 22.8 V G96
2019-08-24 09:07:36 C 21 28 13.491 -18 28 07.06 U F51
2019-08-24 09:23:24 C 21 28 12.933 -18 28 09.46 U F51
2019-08-24 09:39:13 C 21 28 12.360 -18 28 11.91 U F51
2019-08-24 09:55:03 C 21 28 11.794 -18 28 14.37 U F51
2019-09-25 07:49:28 C 21 06 43.654 -19 47 11.41 U F51
2019-09-25 07:50:24 C 21 06 43.649 -19 47 11.58 U F51
2019-09-25 08:03:19 C 21 06 43.404 -19 47 12.14 U F51
2019-09-25 08:04:14 C 21 06 43.388 -19 47 12.35 U F51
2019-09-25 08:17:08 C 21 06 43.135 -19 47 12.65 U F51
2019-09-25 08:18:04 C 21 06 43.121 -19 47 12.87 U F51
2019-09-25 08:31:54 C 21 06 42.857 -19 47 13.45 U F51
2020-07-21 10:12:52 C 01 45 15.64 +08 55 36.1 U I41
2020-07-21 11:15:30 C 01 45 18.08 +08 55 50.0 U I41
2020-07-22 10:28:51 C 01 46 13.02 +09 00 49.7 U I41
2020-07-22 11:11:40 C 01 46 14.66 +09 00 58.9 U I41
2020-07-23 10:25:59 C 01 47 09.07 +09 05 54.5 U I41
2020-07-23 11:16:09 C 01 47 10.97 +09 06 05.2 U I41
2020-07-25 13:48:41 C 01 49 07.250 +09 16 35.31 U F52
2020-07-25 14:04:37 C 01 49 07.832 +09 16 38.30 U F52
2020-07-25 14:20:45 C 01 49 08.430 +09 16 41.66 U F52
2020-07-26 10:43:14 C 01 49 54.54 +09 20 49.3 U I41