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
2019-11-10 05:29:06	C	19 36 52.59	-19 59 15.5	–	V	T05
2019-11-17 04:56:29	C	19 50 53.916	-19 14 37.16	–	U	F51
2019-11-17 05:03:00	C	19 50 54.445	-19 14 35.35	–	U	F51
2019-11-17 05:09:29	C	19 50 54.966	-19 14 33.63	–	U	F51
2019-11-17 05:15:58	C	19 50 55.495	-19 14 31.83	–	U	F51
2020-06-30 13:41:50	C	00 20 11.23	+08 53 47.7	–	V	T05
2020-06-30 13:47:48	C	00 20 11.27	+08 53 49.3	–	V	T05
2020-06-30 13:57:43	C	00 20 11.38	+08 53 51.1	–	V	T05
2020-06-30 14:26:13	C	00 20 11.58	+08 53 56.0	–	V	T05
2020-07-18 13:37:48	C	00 20 22.64	+09 49 02.6	–	V	T08
2020-07-18 13:41:47	C	00 20 22.61	+09 49 02.8	–	V	T08
2020-07-18 13:45:47	C	00 20 22.59	+09 49 03.5	–	V	T08
2020-07-18 14:03:55	C	00 20 22.40	+09 49 05.3	–	V	T08
2020-07-21 12:52:44	C	00 19 45.33	+09 54 32.8	–	V	T05
2020-07-21 13:27:27	C	00 19 44.95	+09 54 35.4	–	V	T05
2020-07-21 13:32:04	C	00 19 44.92	+09 54 35.7	–	V	T05
2020-07-21 13:39:18	C	00 19 44.83	+09 54 36.5	–	V	T05
2020-07-31 11:58:26	C	00 16 11.74	+10 04 14.3	–	V	T08
2020-07-31 12:01:09	C	00 16 11.62	+10 04 14.7	–	V	T08
2020-07-31 12:34:53	C	00 16 10.90	+10 04 14.9	–	V	T08
2020-07-31 13:02:53	C	00 16 10.36	+10 04 14.7	–	V	T08
2020-07-31 21:36:26	C	00 16 00.17	+10 04 17.7	–	o	069
2020-07-31 22:05:52	C	00 15 59.58	+10 04 18.4	–	o	069
2020-07-31 22:34:20	C	00 15 58.99	+10 04 18.6	–	o	069
2020-08-10 12:46:45	C	00 10 16.23	+09 58 53.4	–	V	T05
2020-08-10 13:19:01	C	00 10 15.28	+09 58 52.2	–	V	T05
2020-08-10 13:37:15	C	00 10 14.76	+09 58 51.3	–	V	T05
2020-08-10 14:13:19	C	00 10 13.58	+09 58 48.7	–	V	T05
2020-08-12 13:34:07	C	00 08 47.18	+09 55 48.6	–	V	T08
2020-08-12 13:38:46	C	00 08 47.04	+09 55 48.7	–	V	T08
2020-08-12 14:16:45	C	00 08 45.84	+09 55 45.9	–	V	T08
2020-08-12 14:26:17	C	00 08 45.50	+09 55 45.2	–	V	T08
2020-08-13 13:14:00	C	00 08 02.01	+09 54 03.6	–	V	T05
2020-08-13 13:18:02	C	00 08 01.87	+09 54 03.9	–	V	T05
2020-08-13 14:03:59	C	00 08 00.41	+09 54 00.3	–	V	T05
2020-08-13 14:11:22	C	00 08 00.09	+09 53 59.8	–	V	T05
2020-08-13 15:08:32	C	00 07 58.22	+09 53 54.9	–	V	T05
2020-08-14 18:41:55	C	00 07 03.90	+09 51 38.9	–	q	D29
2020-08-14 19:02:17	C	00 07 03.21	+09 51 37.0	–	q	D29
2020-08-14 19:22:40	C	00 07 02.51	+09 51 35.4	–	q	D29
2020-08-16 12:01:53	C	00 05 39.11	+09 47 50.6	–	V	T08
2020-08-16 12:02:32	C	00 05 39.09	+09 47 50.5	–	V	T08
2020-08-16 12:05:51	C	00 05 38.97	+09 47 50.1	–	V	T08
2020-08-16 12:06:31	C	00 05 38.94	+09 47 50.5	–	V	T08
2020-08-16 12:37:37	C	00 05 37.86	+09 47 47.1	–	V	T08
2020-08-16 12:46:11	C	00 05 37.52	+09 47 46.3	–	V	T08
2020-08-16 12:57:52	C	00 05 37.10	+09 47 44.7	–	V	T08
2020-08-16 13:17:31	C	00 05 36.42	+09 47 43.0	–	V	T08
2020-08-17 10:16:46	C	00 04 51.79	+09 45 33.7	–	V	G96
2020-08-17 10:28:07	C	00 04 51.38	+09 45 32.5	–	V	G96

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5143 Heracles (1991 VL)