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
2020-12-13 02:52:04 C 01 08 18.99 +07 33 18.5 q U55
2020-12-13 02:57:11 C 01 08 18.87 +07 33 20.7 q U55
2020-12-13 03:02:31 C 01 08 19.02 +07 33 21.5 q U55
2020-12-15 06:33:57 C 01 08 47.51 +07 40 59.6 V T05
2020-12-15 06:38:34 C 01 08 47.56 +07 41 00.4 V T05
2020-12-15 06:49:08 C 01 08 47.66 +07 41 01.7 V T05
2020-12-15 07:12:59 C 01 08 47.87 +07 41 06.0 V T05
2020-12-17 10:30:25 S 01 09 29.26 +07 49 50.4 L C51
2020-12-17 13:38:44 S 01 09 32.25 +07 50 26.6 L C51
2020-12-17 16:47:02 S 01 09 35.16 +07 51 00.9 L C51
2020-12-17 19:55:22 S 01 09 38.22 +07 51 36.9 L C51
2020-12-17 21:29:26 S 01 09 39.76 +07 51 54.6 L C51
2020-12-17 23:03:41 S 01 09 41.34 +07 52 12.0 L C51
2020-12-18 06:54:23 S 01 09 49.13 +07 53 43.0 L C51
2020-12-18 10:02:42 S 01 09 52.43 +07 54 18.4 L C51
2020-12-19 03:29:57 C 01 10 11.22 +07 57 41.5 U I41
2020-12-19 04:36:01 C 01 10 12.32 +07 57 54.7 U I41
2020-12-20 03:04:42 C 01 10 38.89 +08 02 33.0 V G96
2020-12-20 03:12:52 C 01 10 39.04 +08 02 34.8 V G96
2020-12-20 03:21:02 C 01 10 39.19 +08 02 36.5 V G96
2020-12-20 03:29:12 C 01 10 39.34 +08 02 38.2 V G96
2020-12-20 19:34:09 C 01 10 59.72 +08 06 03.7 V G17
2020-12-20 19:43:10 C 01 10 59.91 +08 06 05.8 V G17
2020-12-20 19:52:11 C 01 11 00.09 +08 06 08.2 V G17
2020-12-21 03:33:44 C 01 11 10.35 +08 07 50.8 U I41
2020-12-21 04:27:39 C 01 11 11.45 +08 08 02.8 U I41
2020-12-21 05:58:04 C 01 11 13.60 +08 08 25.0 V T08
2020-12-21 06:05:51 C 01 11 13.75 +08 08 27.1 V T08
2020-12-21 06:10:30 C 01 11 13.84 +08 08 27.7 V T08
2020-12-21 06:56:59 C 01 11 14.81 +08 08 38.3 V T08
2021-01-03 07:23:54 C 01 21 55.68 +09 38 15.4 V T08
2021-01-03 07:28:33 C 01 21 55.87 +09 38 16.8 V T08
2021-01-03 07:43:11 C 01 21 56.51 +09 38 22.1 V T08
2021-01-03 08:03:48 C 01 21 57.43 +09 38 29.1 V T08
2021-01-04 02:47:31 C 01 22 49.52 +09 45 01.2 q U71
2021-01-04 02:58:18 C 01 22 49.91 +09 45 04.1 q U71
2021-01-04 03:10:05 C 01 22 50.45 +09 45 09.5 q U71
2021-01-04 06:38:08 C 01 23 00.12 +09 46 23.9 V T05
2021-01-04 06:42:51 C 01 23 00.35 +09 46 25.7 V T05
2021-01-04 06:50:48 C 01 23 00.67 +09 46 28.1 V T05
2021-01-04 07:06:43 C 01 23 01.41 +09 46 34.0 V T05
2021-01-06 02:57:12 C 01 25 09.18 +10 02 25.2 U I41
2021-01-06 02:58:32 C 01 25 09.24 +10 02 25.7 U I41
2021-01-06 03:06:50 C 01 25 09.64 +10 02 28.7 U I41
2021-01-06 03:08:55 C 01 25 09.74 +10 02 29.6 U I41
2021-01-06 03:53:47 C 01 25 11.83 +10 02 46.1 V 703
2021-01-06 04:01:57 C 01 25 12.30 +10 02 49.2 V 703
2021-01-06 04:06:37 C 01 25 12.52 +10 02 50.8 U I41
2021-01-06 04:10:08 C 01 25 12.67 +10 02 52.0 V 703
2021-01-06 04:18:19 C 01 25 13.03 +10 02 55.1 V 703