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
2020-09-06 17:13:59	C	23 43 48.81	+08 19 45.8	–	q	D29
2020-09-06 17:14:45	C	23 43 48.78	+08 19 44.7	–	q	D29
2020-09-06 17:26:20	C	23 43 48.13	+08 19 44.2	–	q	D29
2020-09-06 17:27:07	C	23 43 48.13	+08 19 43.3	–	q	D29
2020-09-07 09:01:30	C	23 43 02.620	+08 15 55.96	–	U	F52
2020-09-07 09:17:36	C	23 43 01.818	+08 15 52.04	–	U	F52
2020-09-07 09:34:32	C	23 43 00.972	+08 15 47.84	–	U	F52
2020-09-07 10:21:31	C	23 42 58.46	+08 15 35.7	–	V	703
2020-09-07 10:29:24	C	23 42 58.04	+08 15 33.0	–	V	703
2020-09-07 10:37:16	C	23 42 57.63	+08 15 31.3	–	V	703
2020-09-07 10:45:08	C	23 42 57.29	+08 15 28.4	–	V	703
2020-09-07 15:53:47	C	23 42 42.31	+08 14 13.8	–	q	D29
2020-09-07 16:15:54	C	23 42 41.19	+08 14 08.4	–	q	D29
2020-09-07 16:38:01	C	23 42 40.09	+08 14 02.7	–	q	D29
2020-09-08 10:22:41	C	23 41 47.75	+08 09 38.0	–	V	T08
2020-09-08 10:59:40	C	23 41 45.86	+08 09 28.9	–	V	T08
2020-09-08 11:04:24	C	23 41 45.64	+08 09 27.5	–	V	T08
2020-09-08 11:40:08	C	23 41 43.86	+08 09 18.8	–	V	T08
2020-09-09 11:58:17	C	23 40 31.69	+08 03 08.0	–	V	T08
2020-09-09 12:04:11	C	23 40 31.37	+08 03 06.4	–	V	T08
2020-09-09 12:11:52	C	23 40 31.00	+08 03 04.3	–	V	T08
2020-09-09 12:48:36	C	23 40 29.14	+08 02 54.7	–	V	T08
2020-09-10 11:20:36	C	23 39 22.01	+07 57 03.8	–	V	T05
2020-09-10 11:25:13	C	23 39 21.78	+07 57 03.0	–	V	T05
2020-09-10 11:33:11	C	23 39 21.39	+07 57 00.6	–	V	T05
2020-09-10 12:24:01	C	23 39 18.80	+07 56 47.3	–	V	T05
2020-09-10 14:30:30	C	23 39 12.715	+07 56 17.16	–	V	P07
2020-09-10 15:34:26	C	23 39 09.485	+07 56 00.17	–	V	P07
2020-09-10 16:22:53	C	23 39 07.010	+07 55 47.60	–	V	P07
2020-09-10 18:05:00	C	23 39 01.834	+07 55 20.82	–	V	P07
2020-09-10 21:14:36	C	23 38 52.44	+07 54 28.0	–	o	L52
2020-09-10 22:32:27	C	23 38 48.47	+07 54 08.1	–	o	L52
2020-09-11 18:42:36	C	23 37 48.00	+07 48 44.2	–	q	D29
2020-09-11 19:02:58	C	23 37 46.94	+07 48 38.7	–	q	D29
2020-09-12 10:01:57	C	23 37 02.104	+07 44 37.23	–	U	F52
2020-09-12 10:16:56	C	23 37 01.337	+07 44 33.16	–	U	F52
2020-09-12 10:31:56	C	23 37 00.572	+07 44 29.08	–	U	F52
2020-09-12 15:37:35	C	23 36 45.29	+07 43 05.2	–	q	D29
2020-09-12 16:08:01	C	23 36 43.72	+07 42 57.0	–	q	D29
2020-09-12 16:28:23	C	23 36 42.68	+07 42 51.2	–	q	D29
2020-09-14 04:58:49	C	23 34 52.88	+07 32 47.3	–	V	G96
2020-09-14 05:06:52	C	23 34 52.42	+07 32 44.6	–	V	G96
2020-09-14 05:14:54	C	23 34 52.00	+07 32 42.8	–	V	G96
2020-09-14 05:22:57	C	23 34 51.59	+07 32 40.5	–	V	G96
2020-09-14 22:32:11	C	23 33 59.78	+07 27 51.1	–	V	130
2020-09-14 22:35:03	C	23 33 59.63	+07 27 50.4	–	V	130
2020-09-14 22:37:55	C	23 33 59.51	+07 27 49.3	–	V	130
2020-09-14 22:40:48	C	23 33 59.36	+07 27 48.5	–	V	130
2020-09-15 09:40:34	C	23 33 26.171	+07 24 43.27	–	U	F51
2020-09-15 10:00:00	C	23 33 25.177	+07 24 37.77	–	U	F51

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5143 Heracles (1991 VL)