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
2017-10-07 08:03:29 C 21 43 41.30 -06 48 57.5 L T08
2017-10-07 08:12:33 C 21 43 41.05 -06 49 00.1 L T08
2017-10-07 08:22:24 C 21 43 40.82 -06 49 01.3 L T08
2017-10-10 07:45:33 C 21 42 16.95 -07 00 10.8 L T08
2017-10-10 07:55:52 C 21 42 16.78 -07 00 12.0 L T08
2017-10-10 08:16:40 C 21 42 16.35 -07 00 14.1 L T08
2017-10-11 07:38:34 C 21 41 52.38 -07 03 37.4 L T08
2017-10-11 07:44:03 C 21 41 52.29 -07 03 38.0 L T08
2017-10-11 07:48:53 C 21 41 52.22 -07 03 38.7 L T08
2017-10-11 07:54:24 C 21 41 52.10 -07 03 39.9 L T08
2017-10-11 07:59:16 C 21 41 52.04 -07 03 40.3 L T08
2017-10-11 08:04:47 C 21 41 51.89 -07 03 41.2 L T08
2017-10-11 08:09:42 C 21 41 51.81 -07 03 42.7 L T08
2017-10-11 08:15:14 C 21 41 51.73 -07 03 42.4 L T08
2017-10-15 21:07:56 C 21 40 21.61 -07 17 41.3 q A16
2017-10-15 21:26:32 C 21 40 21.39 -07 17 43.2 q A16
2017-10-15 21:44:33 C 21 40 21.15 -07 17 44.8 q A16
2017-10-20 12:25:15 C 21 39 25.19 -07 28 59.5 q D29
2017-10-20 12:50:43 C 21 39 25.02 -07 29 01.2 q D29
2017-10-20 13:16:09 C 21 39 24.82 -07 29 04.2 q D29
2017-10-22 07:12:12 C 21 39 12.64 -07 32 32.2 T08
2017-10-22 07:18:58 C 21 39 12.60 -07 32 33.2 T08
2017-10-22 07:29:16 C 21 39 12.59 -07 32 33.4 T08
2017-10-22 07:32:43 C 21 39 12.55 -07 32 34.2 T08
2017-10-22 07:43:05 C 21 39 12.47 -07 32 35.1 T08
2017-11-06 10:21:22 C 21 40 32.10 -07 46 25.2 q D29
2017-11-06 11:02:05 C 21 40 32.56 -07 46 24.8 q D29
2017-11-13 06:28:51 C 21 42 43.15 -07 43 43.2 U T05
2017-11-13 06:36:14 C 21 42 43.37 -07 43 42.6 U T05
2017-11-13 06:38:57 C 21 42 43.27 -07 43 43.9 U T05
2017-11-13 06:57:31 C 21 42 43.70 -07 43 42.5 U T05
2017-11-13 07:00:13 C 21 42 43.65 -07 43 41.7 U T05
2017-11-20 02:08:42 C 21 45 43.73 -07 36 05.8 U G96
2017-11-20 02:17:05 C 21 45 43.90 -07 36 05.2 U G96
2017-11-20 02:25:21 C 21 45 44.06 -07 36 04.9 U G96
2017-11-20 02:33:41 C 21 45 44.23 -07 36 04.0 U G96
2017-11-24 02:32:34 C 21 47 50.70 -07 29 23.3 U 703
2017-11-24 02:42:14 C 21 47 51.05 -07 29 22.6 U 703
2017-11-24 02:51:55 C 21 47 51.25 -07 29 21.9 U 703
2017-11-24 03:01:35 C 21 47 51.49 -07 29 21.7 U 703
2018-08-23 18:26:33 C 01 13 43.11 +18 42 38.6 q D29
2018-08-23 18:46:53 C 01 13 42.62 +18 42 39.9 q D29
2018-08-23 19:07:14 C 01 13 42.13 +18 42 40.6 q D29
2018-09-04 13:35:30 C 01 05 14.89 +18 41 45.5 U T08
2018-09-04 13:49:33 C 01 05 14.37 +18 41 44.9 U T08
2018-09-04 14:01:56 C 01 05 13.85 +18 41 44.4 U T08
2018-09-04 14:19:42 C 01 05 13.25 +18 41 42.9 U T08
2018-09-06 07:40:59 C 01 03 39.88 +18 39 22.6 V 703
2018-09-06 07:48:33 C 01 03 39.57 +18 39 22.0 V 703
2018-09-06 07:56:07 C 01 03 39.27 +18 39 21.3 V 703
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)