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
2011-09-21 00:21:40 C 01 14 22.16 +05 15 36.8 c A24
2011-09-21 00:23:44 C 01 14 22.06 +05 15 36.3 c A24
2011-09-21 01:31:52 C 01 14 19.72 +05 15 22.5 c A24
2011-09-21 01:33:55 C 01 14 19.69 +05 15 22.8 c A24
2011-09-21 08:28:24 C 01 14 06.25 +05 14 04.7 r 703
2011-09-21 08:39:13 C 01 14 05.96 +05 14 02.4 r 703
2011-09-21 08:49:58 C 01 14 05.56 +05 14 01.2 r 703
2011-09-21 09:00:37 C 01 14 05.20 +05 13 58.3 r 703
2011-09-22 16:51:23 C 01 13 01.42 +05 07 43.9 r D29
2011-09-22 17:11:31 C 01 13 00.68 +05 07 40.8 r D29
2011-09-22 17:31:39 C 01 12 59.93 +05 07 36.2 r D29
2011-09-22 17:51:48 C 01 12 59.33 +05 07 34.5 r D29
2011-09-22 23:41:09 C 01 12 47.37 +05 06 21.1 c A24
2011-09-22 23:43:14 C 01 12 47.30 +05 06 20.9 c A24
2011-09-23 00:51:21 C 01 12 44.86 +05 06 07.3 c A24
2011-09-23 00:53:27 C 01 12 44.79 +05 06 06.6 c A24
2011-09-23 10:57:24 C 01 12 23.903 +05 04 06.55 L F51
2011-09-23 11:41:40 C 01 12 22.283 +05 03 57.56 L F51
2011-09-23 12:04:04 C 01 12 21.466 +05 03 52.97 L F51
2011-09-24 07:49:42 C 01 11 39.62 +04 59 47.4 19.5 c 704
2011-09-24 08:10:13 C 01 11 38.84 +04 59 43.1 19.2 c 704
2011-09-24 08:28:57 C 01 11 38.18 +04 59 39.3 19.0 c 704
2011-09-24 08:48:08 C 01 11 37.46 +04 59 35.8 19.0 c 704
2011-09-25 00:20:52 C 01 11 03.70 +04 56 19.0 r 106
2011-09-25 00:38:39 C 01 11 03.02 +04 56 15.1 r 106
2011-09-25 00:56:26 C 01 11 02.37 +04 56 11.8 r 106
2011-09-25 01:14:12 C 01 11 01.72 +04 56 07.7 r 106
2011-09-28 02:40:16 C 01 08 14.23 +04 40 05.6 c J04
2011-09-28 03:11:07 C 01 08 12.99 +04 39 58.6 c J04
2011-09-28 03:41:56 C 01 08 11.73 +04 39 51.6 c J04
2011-09-29 02:35:16 C 01 07 17.04 +04 34 39.3 c J04
2011-09-29 03:06:06 C 01 07 15.76 +04 34 32.0 c J04
2011-09-29 03:36:57 C 01 07 14.45 +04 34 24.8 c J04
2011-09-30 03:14:22 C 01 06 16.69 +04 28 53.3 o C60
2011-09-30 03:16:31 C 01 06 16.60 +04 28 53.5 o C60
2011-09-30 03:18:42 C 01 06 16.51 +04 28 52.4 o C60
2011-09-30 03:20:51 C 01 06 16.44 +04 28 52.1 o C60
2011-09-30 03:23:02 C 01 06 16.32 +04 28 51.2 o C60
2011-09-30 03:25:11 C 01 06 16.23 +04 28 51.3 o C60
2011-09-30 03:27:22 C 01 06 16.15 +04 28 50.5 o C60
2011-09-30 03:29:32 C 01 06 16.06 +04 28 49.6 o C60
2011-09-30 03:31:42 C 01 06 15.95 +04 28 49.3 o C60
2011-09-30 03:33:52 C 01 06 15.86 +04 28 50.0 o C60
2011-09-30 03:36:02 C 01 06 15.79 +04 28 48.5 o C60
2011-09-30 03:38:12 C 01 06 15.71 +04 28 47.7 o C60
2011-10-02 01:35:18 C 01 04 20.27 +04 17 54.2 t 130
2011-10-02 01:37:59 C 01 04 20.16 +04 17 52.9 t 130
2011-10-02 01:40:40 C 01 04 20.05 +04 17 52.7 t 130
2011-10-02 01:43:20 C 01 04 19.91 +04 17 51.9 t 130
2011-10-03 21:13:29 C 01 02 27.30 +04 07 16.4 u C73