5143 Heracles (1991 VL)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
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 Period2.48523594 yr ± 1.79e-09
Physical Parameters
H (abs. magnitude)14.04
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.196″
Uncertainty0
Orbit TypeApollo
MOID0.057437 AU
Observations Used4548
Radar Obs Used1
Gaia Obs Used175
Oppositions38
Arc Total1953-2026
First Observation Used1953-11-30
Last Observation Used2026-01-01
Observations (4888)
Date Type RA Dec Mag Band Observatory
2002-08-04 08:37:44 C 22 39 53.05 -03 18 46.8 m G78
2002-08-04 08:45:36 C 22 39 52.51 -03 18 50.6 m G78
2002-08-04 22:34:30 C 22 38 53.18 -03 22 50.5 c 130
2002-08-04 22:52:00 C 22 38 51.88 -03 22 55.4 c 130
2002-08-04 23:04:14 C 22 38 50.96 -03 22 58.9 c 130
2002-08-05 23:34:16 C 22 37 04.46 -03 30 08.2 c 113
2002-08-05 23:35:57 C 22 37 04.36 -03 30 08.7 c 113
2002-08-05 23:37:20 C 22 37 04.23 -03 30 09.1 c 113
2002-08-05 23:38:44 C 22 37 04.14 -03 30 09.5 c 113
2002-08-05 23:40:12 C 22 37 04.04 -03 30 10.0 c 113
2002-08-06 04:16:28 C 22 36 43.92 -03 31 24.5 859
2002-08-06 04:21:45 C 22 36 43.51 -03 31 25.6 859
2002-08-06 04:28:26 C 22 36 43.05 -03 31 27.6 859
2002-08-09 08:03:44 C 22 31 08.94 -03 54 32.6 16.9 c 704
2002-08-09 08:25:48 C 22 31 07.28 -03 54 40.2 17.1 c 704
2002-08-09 08:47:55 C 22 31 05.59 -03 54 46.8 17.2 c 704
2002-08-09 09:10:01 C 22 31 03.90 -03 54 53.6 17.0 c 704
2002-08-09 09:32:07 C 22 31 02.25 -03 55 00.6 16.9 c 704
2002-08-09 11:10:21 C 22 30 55.10 -03 55 30.4 o 608
2002-08-09 11:25:56 C 22 30 53.95 -03 55 35.8 o 608
2002-08-09 11:40:49 C 22 30 52.79 -03 55 40.2 o 608
2002-08-11 03:52:50 C 22 27 52.82 -04 08 16.4 m 859
2002-08-11 04:02:53 C 22 27 52.05 -04 08 20.7 m 859
2002-08-11 04:12:48 C 22 27 50.97 -04 08 26.6 m 859
2002-08-12 07:03:44 C 22 25 50.48 -04 17 06.3 16.6 c 704
2002-08-12 07:24:33 C 22 25 48.87 -04 17 12.9 17.4 c 704
2002-08-12 07:45:57 C 22 25 47.24 -04 17 19.8 17.3 c 704
2002-08-12 08:06:26 C 22 25 45.66 -04 17 26.4 17.0 c 704
2002-08-12 08:26:59 C 22 25 44.12 -04 17 33.1 17.0 c 704
2002-08-13 08:44:18 C 22 23 54.64 -04 25 25.9 c 699
2002-08-13 09:06:56 C 22 23 52.91 -04 25 33.2 c 699
2002-08-13 09:29:38 C 22 23 51.17 -04 25 40.8 c 699
2002-08-13 09:52:18 C 22 23 49.44 -04 25 47.9 c 699
2002-08-14 22:51:48 C 22 21 02.85 -04 37 57.4 c 108
2002-08-14 22:54:29 C 22 21 02.62 -04 37 57.7 c 108
2002-08-14 22:58:29 C 22 21 02.32 -04 37 57.7 c 108
2002-08-14 23:01:30 C 22 21 02.00 -04 38 00.1 c 108
2002-08-16 10:27:39 C 22 18 22.18 -04 49 42.1 16.4 c 644
2002-08-16 10:43:00 C 22 18 21.02 -04 49 47.1 16.4 c 644
2002-08-16 10:58:00 C 22 18 19.87 -04 49 52.2 16.5 c 644
2002-08-16 21:08:30 C 22 17 34.53 -04 53 16.4 c 185
2002-08-16 21:14:24 C 22 17 34.09 -04 53 18.4 c 185
2002-08-16 21:22:09 C 22 17 33.50 -04 53 20.8 c 185
2002-08-17 12:31:43 C 22 16 25.14 -04 58 22.2 17.3 c 608
2002-08-17 12:47:32 C 22 16 23.93 -04 58 27.4 17.3 c 608
2002-08-17 13:02:49 C 22 16 22.75 -04 58 32.4 17.3 c 608
2002-08-19 06:54:41 C 22 13 16.13 -05 12 31.8 16.5 c 644
2002-08-19 08:33:16 C 22 13 08.67 -05 13 04.8 16.5 c 644
2002-08-19 10:03:43 C 22 13 01.84 -05 13 35.0 16.4 c 644
2002-08-26 08:39:19 C 22 01 00.87 -06 08 54.6 16.5 c 644
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2016-12-03 14:46:00 163730800.42 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)