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
2021-02-06 06:59:51 C 02 20 23.82 +15 52 49.7 V T05
2021-02-06 07:15:05 C 02 20 25.27 +15 52 57.6 V T05
2021-02-08 03:40:22 C 02 24 45.77 +16 16 45.8 U I41
2021-02-08 04:24:38 C 02 24 50.09 +16 17 09.4 U I41
2021-02-08 05:41:28 C 02 24 57.78 +16 17 53.0 V T08
2021-02-08 05:48:15 C 02 24 58.44 +16 17 55.8 V T08
2021-02-08 06:00:26 C 02 24 59.64 +16 18 02.5 V T08
2021-02-08 06:27:17 C 02 25 02.25 +16 18 17.3 V T08
2021-02-09 03:45:43 C 02 27 09.79 +16 29 44.2 V 703
2021-02-09 03:53:55 C 02 27 10.64 +16 29 48.7 V 703
2021-02-09 04:02:08 C 02 27 11.40 +16 29 52.9 V 703
2021-02-09 04:10:21 C 02 27 12.24 +16 29 57.4 V 703
2021-02-10 03:14:17 C 02 29 32.25 +16 42 24.8 U I41
2021-02-10 03:58:52 C 02 29 36.72 +16 42 48.6 U I41
2021-02-10 05:14:50 C 02 29 44.55 +16 43 32.1 V T05
2021-02-10 05:20:11 C 02 29 45.13 +16 43 34.5 V T05
2021-02-10 05:34:45 C 02 29 46.58 +16 43 42.4 V T05
2021-02-10 05:44:01 C 02 29 47.47 +16 43 47.1 V T05
2021-02-12 06:37:42 C 02 34 50.49 +17 10 15.2 V T08
2021-02-12 06:42:21 C 02 34 50.93 +17 10 17.8 V T08
2021-02-12 06:50:21 C 02 34 51.75 +17 10 21.8 V T08
2021-02-12 07:07:00 C 02 34 53.48 +17 10 31.1 V T08
2021-02-16 05:15:37 C 02 45 00.60 +18 01 34.1 V T08
2021-02-16 05:29:50 C 02 45 02.16 +18 01 42.4 V T08
2021-02-16 05:35:09 C 02 45 02.71 +18 01 44.6 V T08
2021-02-16 05:50:36 C 02 45 04.41 +18 01 53.9 V T08
2021-02-21 03:20:45 C 02 58 24.52 +19 05 09.4 V 703
2021-02-21 03:29:00 C 02 58 25.55 +19 05 14.0 V 703
2021-02-21 03:37:16 C 02 58 26.55 +19 05 18.3 V 703
2021-02-21 03:45:31 C 02 58 27.41 +19 05 22.4 V 703
2021-02-22 06:40:31 C 03 01 37.34 +19 19 45.3 V T05
2021-02-22 06:45:48 C 03 01 37.95 +19 19 47.9 V T05
2021-02-22 06:54:24 C 03 01 39.00 +19 19 52.4 V T05
2021-02-22 07:12:53 C 03 01 41.10 +19 20 02.5 V T05
2021-02-23 02:06:42 C 03 03 55.94 +19 30 02.1 V W34
2021-02-23 02:18:12 C 03 03 57.30 +19 30 08.7 V W34
2021-02-23 02:30:14 C 03 03 58.74 +19 30 15.1 V W34
2021-02-24 03:52:49 C 03 07 01.70 +19 43 39.5 V 703
2021-02-24 04:00:24 C 03 07 02.66 +19 43 42.6 V 703
2021-02-24 04:15:36 C 03 07 04.41 +19 43 51.9 V 703
2021-02-25 00:59:55 C 03 09 35.59 +19 54 44.9 V W33
2021-02-25 01:11:01 C 03 09 36.95 +19 54 50.4 V W33
2021-02-25 01:22:06 C 03 09 38.28 +19 54 56.2 V W33
2021-03-02 11:50:54 C 03 26 01.26 +21 01 47.6 q D29
2021-03-02 12:11:16 C 03 26 03.86 +21 01 57.5 q D29
2021-03-03 03:53:02 C 03 28 05.83 +21 09 46.0 V 703
2021-03-03 04:00:35 C 03 28 06.80 +21 09 50.1 V 703
2021-03-03 04:08:07 C 03 28 07.72 +21 09 52.8 V 703
2021-03-03 04:15:39 C 03 28 08.69 +21 09 57.9 V 703
2021-03-04 05:17:50 C 03 31 25.17 +21 22 20.1 V T08