5143 Heracles — IAA Minor Planet Database

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.7711709670 ± 6.95e-09
Semi-major axis (a)	1.8347564263 AU ± 8.81e-10
Inclination (i)	8.97896809° ± 6.58e-07
Long. of Asc. Node (Ω)	309.09682018° ± 6.17e-06
Arg. of Perihelion (ω)	228.20701038° ± 5.99e-06
Mean Anomaly (M)	204.11730697° ± 8.55e-07
Mean Motion (n)	0.3965926397°/day ± 2.86e-10
Perihelion dist (q)	0.41984554 AU ± 1.28e-08
Aphelion dist (Q)	3.24966731 AU ± 1.28e-08
Orbital Period	2.48523594 yr ± 1.79e-09

Physical Parameters

H (abs. magnitude)	14.04
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-05-31
RMS Residual	0.196″
Uncertainty	0
Orbit Type	Apollo
MOID	0.057437 AU
Observations Used	4548
Radar Obs Used	1
Gaia Obs Used	175
Oppositions	38
Arc Total	1953-2026
First Observation Used	1953-11-30
Last Observation Used	2026-01-01

Observations (4888)

Date	Type	RA	Dec	Mag	Band	Observatory
2020-09-15 10:19:29	C	23 33 24.176	+07 24 32.22	–	U	F51
2020-09-15 10:38:59	C	23 33 23.174	+07 24 26.71	–	U	F51
2020-09-16 08:39:54	C	23 32 16.86	+07 18 09.1	–	V	T08
2020-09-16 08:45:52	C	23 32 16.55	+07 18 07.2	–	V	T08
2020-09-16 08:54:30	C	23 32 16.12	+07 18 05.1	–	V	T08
2020-09-16 09:09:11	C	23 32 15.35	+07 18 00.5	–	V	T08
2020-09-17 06:14:58	C	23 31 11.73	+07 11 54.1	–	V	703
2020-09-17 06:22:32	C	23 31 11.33	+07 11 52.5	–	V	703
2020-09-17 06:30:04	C	23 31 10.99	+07 11 49.1	–	V	703
2020-09-17 06:37:38	C	23 31 10.57	+07 11 47.5	–	V	703
2020-09-18 08:28:39	C	23 29 52.86	+07 04 14.3	–	V	T05
2020-09-18 08:39:13	C	23 29 52.32	+07 04 11.0	–	V	T05
2020-09-18 08:44:32	C	23 29 52.05	+07 04 09.3	–	V	T05
2020-09-18 09:19:53	C	23 29 50.20	+07 03 59.1	–	V	T05
2020-09-18 09:49:29	C	23 29 48.705	+07 03 50.47	–	U	F52
2020-09-18 10:23:01	C	23 29 46.990	+07 03 40.60	–	U	F52
2020-09-18 10:39:50	C	23 29 46.130	+07 03 35.68	–	U	F52
2020-09-20 05:59:29	C	23 27 36.33	+06 50 42.2	–	V	703
2020-09-20 06:07:06	C	23 27 35.90	+06 50 39.9	–	V	703
2020-09-20 06:14:45	C	23 27 35.55	+06 50 37.2	–	V	703
2020-09-20 06:22:23	C	23 27 35.16	+06 50 35.5	–	V	703
2020-09-20 08:57:26	C	23 27 27.50	+06 49 49.4	–	V	T08
2020-09-20 09:01:26	C	23 27 27.28	+06 49 48.5	–	V	T08
2020-09-20 09:09:23	C	23 27 26.89	+06 49 46.1	–	V	T08
2020-09-20 09:53:49	C	23 27 24.61	+06 49 32.5	–	V	T08
2020-09-21 10:06:02	C	23 26 12.51	+06 42 14.8	–	V	T08
2020-09-21 10:27:15	C	23 26 11.41	+06 42 08.7	–	V	T08
2020-09-21 10:43:36	C	23 26 10.60	+06 42 03.3	–	V	T08
2020-09-21 10:58:16	C	23 26 09.85	+06 41 59.0	–	V	T08
2020-09-22 08:06:44	C	23 25 07.18	+06 35 33.1	–	V	G96
2020-09-22 08:14:49	C	23 25 06.78	+06 35 30.2	–	V	G96
2020-09-22 08:22:55	C	23 25 06.37	+06 35 28.1	–	V	G96
2020-09-22 08:31:00	C	23 25 05.97	+06 35 25.7	–	V	G96
2020-09-22 09:39:54	C	23 25 02.69	+06 35 05.4	–	V	T05
2020-09-22 09:45:55	C	23 25 02.37	+06 35 03.9	–	V	T05
2020-09-22 09:55:59	C	23 25 01.87	+06 35 00.3	–	V	T05
2020-09-22 10:12:36	C	23 25 01.03	+06 34 55.4	–	V	T05
2020-09-23 07:10:04	C	23 23 59.28	+06 28 30.1	–	V	703
2020-09-23 07:18:15	C	23 23 58.84	+06 28 27.8	–	V	703
2020-09-23 07:26:27	C	23 23 58.46	+06 28 26.0	–	V	703
2020-09-23 07:34:39	C	23 23 57.89	+06 28 23.6	–	V	703
2020-09-25 09:02:11	C	23 21 33.79	+06 13 09.3	–	V	T05
2020-09-25 09:16:47	C	23 21 33.08	+06 13 05.0	–	V	T05
2020-09-25 09:28:56	C	23 21 32.46	+06 13 01.0	–	V	T05
2020-09-25 09:36:15	C	23 21 32.10	+06 12 59.1	–	V	T05
2020-09-26 04:29:44	C	23 20 37.73	+06 07 06.8	–	V	G96
2020-09-26 04:37:26	C	23 20 37.36	+06 07 04.4	–	V	G96
2020-09-26 04:45:08	C	23 20 36.99	+06 07 02.0	–	V	G96
2020-09-26 04:52:50	C	23 20 36.61	+06 06 59.7	–	V	G96
2020-09-26 05:25:23	C	23 20 35.02	+06 06 49.4	–	V	703

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5143 Heracles (1991 VL)