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
2020-09-26 05:32:56	C	23 20 34.65	+06 06 47.1	–	V	703
2020-09-26 05:40:30	C	23 20 34.32	+06 06 44.7	–	V	703
2020-09-26 05:48:03	C	23 20 33.93	+06 06 42.2	–	V	703
2020-09-28 08:40:29	C	23 18 09.22	+05 50 53.7	–	V	T08
2020-09-28 08:43:09	C	23 18 09.10	+05 50 52.3	–	V	T08
2020-09-28 08:49:56	C	23 18 08.81	+05 50 50.7	–	V	T08
2020-09-28 09:08:44	C	23 18 07.87	+05 50 45.4	–	V	T08
2020-10-03 08:55:26	C	23 12 40.77	+05 13 25.4	–	V	T08
2020-10-03 09:17:55	C	23 12 39.76	+05 13 18.8	–	V	T08
2020-10-03 09:22:34	C	23 12 39.59	+05 13 16.8	–	V	T08
2020-10-03 09:41:31	C	23 12 38.70	+05 13 11.4	–	V	T08
2020-10-04 07:56:23	C	23 11 40.30	+05 06 15.4	–	V	703
2020-10-04 08:04:19	C	23 11 40.06	+05 06 14.0	–	V	703
2020-10-04 08:20:12	C	23 11 39.35	+05 06 08.3	–	V	703
2020-10-04 09:45:12	C	23 11 35.71	+05 05 43.8	–	V	T05
2020-10-04 09:49:50	C	23 11 35.52	+05 05 42.2	–	V	T05
2020-10-04 09:59:45	C	23 11 35.03	+05 05 39.2	–	V	T05
2020-10-04 10:15:04	C	23 11 34.39	+05 05 34.2	–	V	T05
2020-10-05 07:15:37	C	23 10 40.09	+04 59 04.3	–	V	703
2020-10-05 07:31:49	C	23 10 39.51	+04 59 00.0	–	V	703
2020-10-05 07:39:55	C	23 10 39.12	+04 58 56.1	–	V	703
2020-10-06 05:47:29	C	23 09 43.03	+04 52 08.5	–	V	703
2020-10-06 05:55:11	C	23 09 42.71	+04 52 07.2	–	V	703
2020-10-06 06:10:34	C	23 09 42.04	+04 52 03.3	–	V	703
2020-10-07 09:54:07	C	23 08 32.84	+04 43 34.4	–	V	T08
2020-10-07 10:20:58	C	23 08 31.66	+04 43 26.1	–	V	T08
2020-10-07 10:30:16	C	23 08 31.32	+04 43 23.1	–	V	T08
2020-10-07 10:34:56	C	23 08 31.13	+04 43 21.9	–	V	T08
2020-10-08 03:37:21	C	23 07 49.57	+04 38 10.4	–	V	G96
2020-10-08 03:45:25	C	23 07 49.23	+04 38 07.9	–	V	G96
2020-10-08 03:53:30	C	23 07 48.90	+04 38 05.5	–	V	G96
2020-10-08 04:01:34	C	23 07 48.56	+04 38 03.1	–	V	G96
2020-10-08 04:44:11	C	23 07 46.84	+04 37 51.1	–	V	703
2020-10-08 04:52:21	C	23 07 46.46	+04 37 47.7	–	V	703
2020-10-08 05:00:31	C	23 07 46.09	+04 37 45.3	–	V	703
2020-10-08 05:08:41	C	23 07 45.69	+04 37 42.2	–	V	703
2020-10-08 09:42:45	C	23 07 34.62	+04 36 20.7	–	V	T05
2020-10-08 09:47:09	C	23 07 34.40	+04 36 19.2	–	V	T05
2020-10-08 09:57:03	C	23 07 33.99	+04 36 16.5	–	V	T05
2020-10-08 10:11:18	C	23 07 33.46	+04 36 12.0	–	V	T05
2020-10-09 03:27:59	C	23 06 52.05	+04 30 58.2	–	t	V19
2020-10-09 04:11:58	C	23 06 50.36	+04 30 43.9	–	t	V19
2020-10-09 04:58:07	C	23 06 48.40	+04 30 31.4	–	t	V19
2020-10-10 08:25:23	C	23 05 43.68	+04 22 18.3	–	V	T08
2020-10-10 08:29:29	C	23 05 43.56	+04 22 17.9	–	V	T08
2020-10-10 08:42:32	C	23 05 43.01	+04 22 12.9	–	V	T08
2020-10-10 09:29:48	C	23 05 41.16	+04 21 59.3	–	V	T08
2020-10-11 05:02:53	C	23 04 56.20	+04 16 10.4	–	V	703
2020-10-11 05:10:24	C	23 04 55.88	+04 16 09.1	–	V	703
2020-10-11 05:17:57	C	23 04 55.62	+04 16 06.0	–	V	703

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5143 Heracles (1991 VL)