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
1996-09-19 01:05:07 C 02 39 51.05 +29 47 44.9 z 118
1996-10-03 22:04:03 C 02 25 33.91 +30 51 05.8 z 118
1996-10-03 22:17:03 C 02 25 33.16 +30 51 07.4 z 118
1996-10-10 15:54:30 C 02 14 55.01 +31 01 59.6 z 360
1996-10-10 15:58:30 C 02 14 54.70 +31 01 59.7 z 360
1996-10-10 22:47:39 C 02 14 24.25 +31 02 04.4 z 118
1996-10-10 22:58:11 C 02 14 23.43 +31 02 04.6 z 118
1996-10-12 23:48:46 C 02 10 36.11 +31 01 53.3 z 118
1996-10-13 00:00:53 C 02 10 35.12 +31 01 53.0 z 118
1996-10-14 22:53:30 C 02 06 43.32 +31 00 02.3 z 557
1996-10-14 23:20:30 C 02 06 40.98 +31 00 00.8 z 557
1996-10-14 23:39:16 C 02 06 39.35 +30 59 59.7 z 557
1996-10-23 23:17:19 C 01 46 13.70 +30 27 06.8 z 118
1996-10-23 23:26:52 C 01 46 12.70 +30 27 04.1 z 118
1996-11-04 17:11:03 C 01 15 03.73 +28 33 56.8 z 557
1996-11-04 17:34:17 C 01 15 01.04 +28 33 44.3 z 557
1996-11-04 17:42:21 C 01 15 00.11 +28 33 40.0 z 557
1996-11-04 23:15:59 C 01 14 21.25 +28 30 36.3 z 118
1996-11-04 23:23:07 C 01 14 20.41 +28 30 32.2 z 118
1996-11-09 22:40:02 C 01 00 47.41 +27 17 40.9 z 118
1996-11-09 22:52:18 C 01 00 46.02 +27 17 32.6 z 118
1996-11-21 07:17:09 C 00 32 21.67 +23 52 46.5 c 608
1996-11-21 08:11:03 C 00 32 16.50 +23 52 02.4 c 608
1996-11-24 18:54:54 C 00 24 51.38 +22 44 07.6 z 610
1996-11-24 19:08:59 C 00 24 50.14 +22 43 55.8 z 610
1996-11-24 19:15:00 C 00 24 49.61 +22 43 50.7 z 610
1996-11-26 09:57:52 C 00 21 34.93 +22 11 58.7 c 608
1996-11-26 11:26:22 C 00 21 27.60 +22 10 44.7 c 608
1996-12-03 20:00:04 C 00 08 45.88 +19 47 01.5 z 118
1996-12-03 20:12:48 C 00 08 45.07 +19 46 51.3 z 118
1996-12-04 21:33:14 C 00 07 12.43 +19 26 51.4 z 557
1996-12-04 21:38:00 C 00 07 12.14 +19 26 47.5 z 557
1996-12-04 21:42:14 C 00 07 11.88 +19 26 44.2 z 557
1996-12-04 21:46:35 C 00 07 11.62 +19 26 40.8 z 557
1996-12-08 12:31:43 C 00 02 27.03 +18 20 08.8 z 381
1996-12-08 12:33:06 C 00 02 26.95 +18 20 07.7 z 381
1996-12-09 16:29:39 C 00 01 06.29 +17 59 20.9 z 046
1996-12-09 16:31:42 C 00 01 06.20 +17 59 19.3 z 046
1996-12-09 16:33:30 C 00 01 06.10 +17 59 18.1 z 046
1997-07-13 12:19:28 C 23 04 35.76 -02 53 13.5 c 608
1997-07-13 12:55:30 C 23 04 33.77 -02 53 18.2 c 608
1997-07-14 11:44:58 C 23 03 19.80 -02 56 34.4 c 608
1997-07-14 12:38:38 C 23 03 16.76 -02 56 42.6 c 608
1997-08-08 22:18:07 C 22 19 54.54 -05 32 49.0 z 631
1997-08-09 00:22:58 C 22 19 44.25 -05 33 30.3 z 631
1997-08-10 21:20:38 C 22 16 06.24 -05 48 31.5 z 046
1997-08-10 21:24:52 C 22 16 05.89 -05 48 32.9 z 046
1997-08-10 21:27:12 C 22 16 05.71 -05 48 33.9 z 046
1997-08-10 21:58:52 C 22 16 03.09 -05 48 44.8 557
1997-08-11 00:52:03 C 22 15 48.86 -05 49 43.2 557
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)