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
2018-10-04 04:20:12 C 00 29 30.52 +16 32 32.5 q H15
2018-10-04 04:31:06 C 00 29 29.85 +16 32 28.6 q H15
2018-10-04 04:40:20 C 00 29 29.25 +16 32 25.8 q H15
2018-10-04 11:57:57 C 00 29 03.22 +16 30 10.2 U T05
2018-10-04 12:04:09 C 00 29 02.82 +16 30 08.2 U T05
2018-10-04 12:32:52 C 00 29 01.14 +16 29 58.6 U T05
2018-10-04 12:48:46 C 00 29 00.16 +16 29 54.5 U T05
2018-10-05 05:55:09 C 00 27 59.86 +16 24 28.4 V 703
2018-10-05 06:02:51 C 00 27 59.37 +16 24 26.5 V 703
2018-10-05 06:10:34 C 00 27 58.91 +16 24 23.5 V 703
2018-10-05 06:18:15 C 00 27 58.52 +16 24 20.3 V 703
2018-10-05 07:05:31 C 00 27 55.62 +16 24 05.9 V G96
2018-10-05 07:13:37 C 00 27 55.13 +16 24 03.3 V G96
2018-10-05 07:21:44 C 00 27 54.64 +16 24 00.8 V G96
2018-10-05 07:29:49 C 00 27 54.15 +16 23 58.1 V G96
2018-10-06 11:09:48 C 00 26 15.98 +16 15 01.3 U T08
2018-10-06 11:26:26 C 00 26 14.99 +16 14 55.8 U T08
2018-10-06 11:38:26 C 00 26 14.24 +16 14 51.9 U T08
2018-10-06 11:49:38 C 00 26 13.60 +16 14 48.2 U T08
2018-10-09 22:42:37 C 00 21 20.05 +15 46 38.4 q 160
2018-10-09 22:46:43 C 00 21 19.80 +15 46 36.8 q 160
2018-10-09 22:50:45 C 00 21 19.54 +15 46 35.8 q 160
2018-10-10 11:04:11 C 00 20 36.33 +15 42 18.7 U T08
2018-10-10 11:19:49 C 00 20 35.37 +15 42 13.5 U T08
2018-10-10 11:21:59 C 00 20 35.23 +15 42 12.4 U T08
2018-10-10 11:35:21 C 00 20 34.43 +15 42 07.2 U T08
2018-10-10 11:37:38 C 00 20 34.29 +15 42 07.0 U T08
2018-10-10 11:46:27 C 00 20 33.78 +15 42 04.0 U T08
2018-10-10 11:47:07 C 00 20 33.70 +15 42 03.1 U T08
2018-10-10 12:04:39 C 00 20 32.69 +15 41 57.6 U T08
2018-10-11 04:09:12 C 00 19 36.32 +15 36 12.5 V 703
2018-10-11 04:24:29 C 00 19 35.59 +15 36 09.7 V 703
2018-10-11 04:32:07 C 00 19 35.22 +15 36 06.1 V 703
2018-10-11 07:56:27 C 00 19 22.85 +15 34 52.3 q H15
2018-10-11 08:05:40 C 00 19 22.29 +15 34 48.9 q H15
2018-10-11 08:14:51 C 00 19 21.71 +15 34 45.8 q H15
2018-10-12 11:14:34 C 00 17 47.11 +15 25 02.2 U T05
2018-10-12 11:29:57 C 00 17 46.20 +15 24 56.4 U T05
2018-10-12 11:45:09 C 00 17 45.30 +15 24 50.8 U T05
2018-10-12 23:13:00 C 00 17 05.40 +15 20 38.6 q 160
2018-10-12 23:17:02 C 00 17 05.18 +15 20 37.1 q 160
2018-10-12 23:21:06 C 00 17 04.94 +15 20 35.3 q 160
2018-10-14 19:59:45 C 00 14 30.31 +15 04 03.6 o C41
2018-10-14 20:03:25 C 00 14 30.07 +15 04 02.0 o C41
2018-10-14 20:06:59 C 00 14 29.86 +15 03 59.6 o C41
2018-10-14 21:09:45 C 00 14 26.22 +15 03 36.7 o C41
2018-10-14 21:13:21 C 00 14 26.03 +15 03 35.1 o C41
2018-10-14 21:16:51 C 00 14 25.79 +15 03 34.0 o C41
2018-10-18 10:09:21 C 00 09 38.20 +14 31 16.2 U T08
2018-10-18 10:25:56 C 00 09 37.24 +14 31 10.6 U T08
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)