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
2019-01-11 05:29:14	C	23 50 45.26	+08 01 00.7	–	V	T05
2019-01-11 05:32:43	C	23 50 45.38	+08 01 00.7	–	V	T05
2019-01-11 05:44:29	C	23 50 45.74	+08 01 02.9	–	V	T05
2019-01-11 05:52:42	C	23 50 46.04	+08 01 02.7	–	V	T05
2019-01-15 02:39:33	C	23 54 03.05	+08 11 31.7	–	V	703
2019-01-15 02:46:27	C	23 54 03.28	+08 11 31.8	–	V	703
2019-01-15 02:53:22	C	23 54 03.66	+08 11 32.6	–	V	703
2019-01-15 03:00:17	C	23 54 03.92	+08 11 32.9	–	V	703
2019-01-22 05:07:30	C	00 00 44.13	+08 36 06.9	–	V	T08
2019-01-22 05:10:49	C	00 00 44.20	+08 36 07.8	–	V	T08
2019-01-22 05:36:38	C	00 00 45.22	+08 36 12.5	–	V	T08
2019-01-22 05:38:37	C	00 00 45.28	+08 36 13.7	–	V	T08
2019-01-23 05:11:10	C	00 01 44.49	+08 40 07.9	–	V	T05
2019-01-23 05:12:34	C	00 01 44.60	+08 40 08.7	–	V	T05
2019-01-23 05:22:30	C	00 01 44.99	+08 40 10.1	–	V	T05
2019-01-23 05:23:55	C	00 01 45.05	+08 40 10.9	–	V	T05
2019-01-23 05:32:07	C	00 01 45.42	+08 40 11.7	–	V	T05
2019-01-23 05:40:34	C	00 01 45.74	+08 40 13.2	–	V	T05
2019-01-25 05:12:35	C	00 03 48.01	+08 48 31.4	–	V	T08
2019-01-25 05:23:43	C	00 03 48.49	+08 48 31.9	–	V	T08
2019-01-25 05:24:23	C	00 03 48.51	+08 48 32.9	–	V	T08
2019-01-25 05:33:34	C	00 03 48.90	+08 48 34.1	–	V	T08
2019-01-25 05:34:14	C	00 03 48.96	+08 48 34.9	–	V	T08
2019-01-25 05:43:13	C	00 03 49.30	+08 48 36.5	–	V	T08
2019-01-29 05:12:02	C	00 08 05.79	+09 06 42.6	–	V	T08
2019-01-29 05:22:34	C	00 08 06.29	+09 06 44.0	–	V	T08
2019-01-29 05:32:19	C	00 08 07.04	+09 06 41.2	–	V	T08
2019-01-29 05:40:50	C	00 08 07.12	+09 06 48.1	–	V	T08
2019-02-04 05:24:01	C	00 14 59.90	+09 37 34.7	–	V	T05
2019-02-04 05:32:53	C	00 15 00.32	+09 37 36.3	–	V	T05
2019-02-04 05:43:03	C	00 15 00.79	+09 37 38.5	–	V	T05
2019-02-04 05:55:13	C	00 15 01.49	+09 37 41.8	–	V	T05
2019-08-28 05:47:10	C	15 02 49.14	-21 16 11.1	–	V	T08
2019-08-28 05:52:40	C	15 02 50.82	-21 16 15.6	–	V	T08
2019-08-28 06:01:35	C	15 02 53.56	-21 16 23.0	–	V	T08
2019-08-28 06:19:32	C	15 02 59.05	-21 16 37.7	–	V	T08
2019-09-15 06:16:55	C	16 51 06.84	-23 56 02.1	–	V	T05
2019-09-15 06:21:33	C	16 51 07.75	-23 56 02.2	–	V	T05
2019-09-15 06:30:20	C	16 51 09.47	-23 56 02.8	–	V	T05
2019-09-15 06:45:10	C	16 51 12.36	-23 56 03.4	–	V	T05
2019-10-21 05:39:32	C	18 51 53.32	-21 56 37.2	–	V	T05
2019-10-21 05:47:36	C	18 51 54.17	-21 56 35.4	–	V	T05
2019-10-21 05:52:13	C	18 51 54.60	-21 56 34.0	–	V	T05
2019-10-31 05:57:22	C	19 15 27.74	-20 59 58.5	–	V	T08
2019-10-31 06:01:36	C	19 15 28.17	-20 59 57.3	–	V	T08
2019-10-31 06:12:23	C	19 15 29.16	-20 59 54.5	–	V	T08
2019-10-31 06:32:13	C	19 15 30.97	-20 59 49.7	–	V	T08
2019-11-10 05:00:22	C	19 36 50.12	-19 59 22.7	–	V	T05
2019-11-10 05:05:44	C	19 36 50.55	-19 59 21.6	–	V	T05
2019-11-10 05:14:26	C	19 36 51.37	-19 59 20.3	–	V	T05

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5143 Heracles (1991 VL)