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
2016-08-23 01:39:56	C	03 43 49.68	+30 14 06.3	–	q	160
2016-09-04 08:58:48	C	04 00 53.94	+32 10 59.4	–	q	703
2016-09-04 09:06:02	C	04 00 54.35	+32 11 01.9	–	q	703
2016-09-04 09:13:17	C	04 00 54.69	+32 11 04.8	–	q	703
2016-09-04 09:20:30	C	04 00 55.16	+32 11 09.3	–	q	703
2016-09-21 13:01:25	C	04 24 33.42	+35 16 54.5	–	L	T05
2016-09-21 13:19:48	C	04 24 34.47	+35 17 03.3	–	L	T05
2016-09-21 13:37:57	C	04 24 35.47	+35 17 12.5	–	L	T05
2016-09-21 13:56:24	C	04 24 36.48	+35 17 21.9	–	L	T05
2016-09-25 13:00:08	C	04 30 04.07	+36 06 31.9	–	L	T05
2016-09-25 13:19:14	C	04 30 05.13	+36 06 42.7	–	L	T05
2016-09-25 13:38:01	C	04 30 06.16	+36 06 52.3	–	L	T05
2016-09-25 13:57:00	C	04 30 07.15	+36 07 02.3	–	L	T05
2016-09-29 13:45:12	C	04 35 37.89	+37 00 06.0	–	L	T05
2016-09-29 14:06:07	C	04 35 39.01	+37 00 17.6	–	L	T05
2016-09-29 14:25:47	C	04 35 40.08	+37 00 29.3	–	L	T05
2016-09-29 14:45:35	C	04 35 41.20	+37 00 40.5	–	L	T05
2016-10-04 00:32:55	C	04 41 48.78	+38 04 09.7	–	q	K38
2016-10-04 00:45:19	C	04 41 49.48	+38 04 17.6	–	q	K38
2016-10-04 01:02:21	C	04 41 50.44	+38 04 28.5	–	q	K38
2016-10-04 01:13:43	C	04 41 51.08	+38 04 35.8	–	q	K38
2016-10-04 01:25:05	C	04 41 51.71	+38 04 43.0	–	q	K38
2016-10-04 01:36:26	C	04 41 52.36	+38 04 50.2	–	q	K38
2016-10-04 01:47:47	C	04 41 52.99	+38 04 57.4	–	q	K38
2016-10-04 03:29:33	C	04 41 58.65	+38 06 01.5	–	c	A24
2016-10-04 03:30:36	C	04 41 58.72	+38 06 02.1	–	c	A24
2016-10-04 23:27:28	C	04 43 08.87	+38 18 42.1	–	q	K74
2016-10-04 23:28:54	C	04 43 08.94	+38 18 42.9	–	q	K74
2016-10-04 23:47:15	C	04 43 09.98	+38 18 54.9	–	q	K74
2016-10-06 10:23:55	C	04 45 11.01	+38 41 35.5	–	q	H15
2016-10-06 10:37:44	C	04 45 11.78	+38 41 44.8	–	q	H15
2016-10-06 10:52:23	C	04 45 12.62	+38 41 54.8	–	q	H15
2016-10-07 12:16:39	C	04 46 42.54	+38 59 01.9	–	L	T05
2016-10-07 12:42:47	C	04 46 43.99	+38 59 19.8	–	L	T05
2016-10-07 13:00:58	C	04 46 45.01	+38 59 32.4	–	L	T05
2016-10-07 13:19:06	C	04 46 46.01	+38 59 44.9	–	L	T05
2016-10-13 11:37:45	C	04 55 18.55	+40 44 40.8	–	L	T05
2016-10-13 12:03:55	C	04 55 20.07	+40 45 02.0	–	L	T05
2016-10-13 12:19:12	C	04 55 20.96	+40 45 14.3	–	L	T05
2016-10-13 12:36:57	C	04 55 21.97	+40 45 28.7	–	L	T05
2016-10-17 11:40:01	C	05 01 20.40	+42 06 18.4	–	L	T05
2016-10-17 11:42:51	C	05 01 20.61	+42 06 21.0	–	L	T05
2016-10-17 11:54:53	C	05 01 21.29	+42 06 32.1	–	L	T05
2016-10-17 12:06:52	C	05 01 22.06	+42 06 43.0	–	L	T05
2016-10-17 12:09:30	C	05 01 22.24	+42 06 45.7	–	L	T05
2016-10-17 12:25:17	C	05 01 23.16	+42 07 00.2	–	L	T05
2016-10-17 12:27:55	C	05 01 23.40	+42 07 02.1	–	L	T05
2016-10-17 12:43:43	C	05 01 24.35	+42 07 16.4	–	L	T05
2016-10-24 09:38:54	C	05 12 44.41	+44 56 37.1	–	q	H15
2016-10-24 09:52:54	C	05 12 45.37	+44 56 53.5	–	q	H15

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5143 Heracles (1991 VL)