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
2011-10-03 21:21:59 C 01 02 26.86 +04 07 13.9 u C73
2011-10-03 21:28:03 C 01 02 26.64 +04 07 12.9 u C73
2011-10-16 07:45:14 C 00 48 33.30 +02 51 09.6 r 703
2011-10-16 07:57:21 C 00 48 32.61 +02 51 06.8 r 703
2011-10-16 08:09:06 C 00 48 32.11 +02 51 03.0 r 703
2011-10-16 08:20:40 C 00 48 31.57 +02 50 59.5 r 703
2011-10-19 08:09:25 C 00 45 06.311 +02 32 53.35 L F51
2011-10-19 08:27:20 C 00 45 05.429 +02 32 49.03 L F51
2011-10-19 08:45:55 C 00 45 04.500 +02 32 44.40 L F51
2011-10-19 09:02:45 C 00 45 03.674 +02 32 40.16 L F51
2011-10-22 07:28:52 C 00 41 44.55 +02 15 23.3 r G96
2011-10-22 07:30:50 C 00 41 44.44 +02 15 22.8 r G96
2011-10-22 07:32:47 C 00 41 44.37 +02 15 22.3 r G96
2011-10-22 07:34:45 C 00 41 44.26 +02 15 21.9 r G96
2011-10-23 06:30:55 C 00 40 40.51 +02 09 55.0 18.5 c 704
2011-10-23 06:48:12 C 00 40 39.67 +02 09 51.0 19.1 c 704
2011-10-23 07:05:31 C 00 40 38.82 +02 09 46.6 18.7 c 704
2011-10-23 07:22:43 C 00 40 38.01 +02 09 42.9 18.9 c 704
2011-10-23 07:39:56 C 00 40 37.20 +02 09 38.5 18.8 c 704
2011-10-28 03:57:23 C 00 35 24.90 +01 43 28.2 r 703
2011-10-28 04:07:09 C 00 35 24.46 +01 43 26.7 r 703
2011-10-28 04:16:58 C 00 35 24.00 +01 43 24.6 r 703
2011-10-28 04:26:49 C 00 35 23.56 +01 43 22.4 r 703
2011-11-18 04:57:31 C 00 19 16.02 +00 36 24.2 19.5 c 704
2011-11-18 05:15:46 C 00 19 15.62 +00 36 22.6 19.8 c 704
2011-11-18 05:34:12 C 00 19 15.30 +00 36 22.4 19.4 c 704
2011-11-18 05:52:36 C 00 19 14.92 +00 36 22.2 20.2 c 704
2011-11-18 06:10:58 C 00 19 14.59 +00 36 21.0 19.2 c 704
2011-11-23 03:47:26 C 00 17 32.53 +00 34 27.5 r G96
2011-11-23 03:55:01 C 00 17 32.42 +00 34 27.6 r G96
2011-11-23 04:02:32 C 00 17 32.35 +00 34 27.8 r G96
2011-11-23 04:09:59 C 00 17 32.24 +00 34 27.9 r G96
2011-11-25 19:53:04 C 00 16 59.08 +00 35 49.2 d B66
2011-11-25 20:33:28 C 00 16 58.73 +00 35 51.4 d B66
2011-12-18 03:01:21 C 00 22 28.62 +01 51 01.2 19.0 c 704
2011-12-18 03:20:16 C 00 22 29.13 +01 51 06.0 19.8 c 704
2011-12-18 03:39:25 C 00 22 29.54 +01 51 10.7 19.6 c 704
2011-12-18 03:58:14 C 00 22 30.05 +01 51 14.8 19.3 c 704
2011-12-18 04:16:49 C 00 22 30.50 +01 51 19.1 19.4 c 704
2012-01-11 16:56:53 C 00 47 22.19 +05 08 12.8 r 106
2012-01-11 17:15:43 C 00 47 23.21 +05 08 20.1 r 106
2012-01-11 17:34:18 C 00 47 24.23 +05 08 27.7 r 106
2012-01-11 17:52:55 C 00 47 25.30 +05 08 34.7 r 106
2012-01-14 02:57:47 C 00 50 44.12 +05 32 52.8 r 703
2012-01-14 03:05:06 C 00 50 44.66 +05 32 56.7 r 703
2012-01-14 03:12:31 C 00 50 45.02 +05 32 59.6 r 703
2012-01-14 03:19:53 C 00 50 45.52 +05 33 02.7 r 703
2012-01-21 01:48:31 C 01 01 16.17 +06 48 13.0 19.3 c 704
2012-01-21 02:06:59 C 01 01 17.36 +06 48 21.5 20.0 c 704
2012-01-21 02:24:31 C 01 01 18.37 +06 48 27.7 r 703