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
1992-07-26 10:47:57 C 22 36 02.28 -05 18 25.8 z 658
1992-07-26 10:52:26 C 22 36 01.90 -05 18 27.0 z 658
1992-07-26 10:56:55 C 22 36 01.53 -05 18 28.4 z 658
1992-07-27 09:09:57 C 22 34 11.69 -05 25 10.7 z 658
1992-07-27 09:13:58 C 22 34 11.35 -05 25 11.9 z 658
1992-07-27 09:17:58 C 22 34 11.00 -05 25 13.2 z 658
1992-07-28 06:35:34 C 22 32 24.23 -05 31 44.9 z 801
1992-07-28 06:50:37 C 22 32 22.95 -05 31 49.6 z 801
1992-07-29 07:54:29 22 30 16.22 -05 39 39.2 F 711
1992-07-30 08:15:14 22 28 11.83 -05 47 25.3 F 711
1992-07-31 09:17:10 22 26 02.89 -05 55 32.8 F 711
1992-08-03 08:41:29 22 19 50.91 -06 19 21.5 675
1992-08-06 09:59:30 22 13 25.06 -06 44 28.1 675
1992-08-06 11:04:30 22 13 19.28 -06 44 50.8 675
1992-10-17 03:56:31 20 59 13.13 -12 12 53.1 F 711
1993-09-15 07:22:14 00 20 50.77 +13 59 01.9 711
1993-09-16 06:24:27 00 19 41.54 +13 53 53.7 711
1993-09-22 08:39:14 00 12 08.40 +13 17 32.9 675
1995-07-28 12:06:13 C 23 57 09.07 +07 07 34.0 c 608
1995-07-28 12:44:35 C 23 57 08.16 +07 07 33.4 c 608
1995-08-02 12:19:10 C 23 54 01.41 +07 03 32.7 c 608
1995-08-02 13:12:31 C 23 53 59.79 +07 03 30.0 c 608
1995-08-21 07:11:16 C 23 37 13.68 +06 10 23.6 z 658
1995-08-21 07:16:38 C 23 37 13.42 +06 10 22.6 z 658
1995-08-21 07:20:17 C 23 37 13.26 +06 10 22.0 z 658
1995-08-25 21:11:36 C 23 32 07.12 +05 48 28.2 z 587
1995-08-25 21:27:41 C 23 32 06.39 +05 48 24.7 z 587
1995-08-26 21:39:15 C 23 30 56.64 +05 43 10.8 z 587
1995-08-26 22:03:50 C 23 30 55.40 +05 43 05.4 z 587
1995-09-14 11:27:21 C 23 08 18.50 +03 45 02.1 c 608
1995-09-14 12:31:14 C 23 08 15.18 +03 44 43.3 c 608
1995-09-18 22:07:13 C 23 02 56.87 +03 12 56.3 118
1995-10-16 20:46:24 C 22 36 15.58 +00 04 24.0 z 587
1995-10-16 21:13:09 C 22 36 14.83 +00 04 17.4 z 587
1995-10-23 20:15:02 C 22 32 17.85 -00 31 34.5 z 587
1995-10-23 20:31:44 C 22 32 17.54 -00 31 38.3 z 587
1995-10-29 13:02:53 C 22 29 57.61 -00 56 09.2 413
1995-10-29 13:07:15 C 22 29 57.53 -00 56 09.8 413
1995-10-29 13:11:09 C 22 29 57.47 -00 56 10.7 413
1995-10-30 12:56:37 C 22 29 37.94 -00 59 59.4 413
1995-10-30 13:00:13 C 22 29 37.95 -00 59 58.9 413
1996-08-11 01:31:05 C 02 35 40.56 +25 29 01.1 z 118
1996-08-11 01:44:03 C 02 35 40.88 +25 29 05.2 z 118
1996-08-20 01:35:42 C 02 40 16.88 +26 33 14.9 z 118
1996-08-20 01:51:50 C 02 40 17.16 +26 33 19.5 z 118
1996-08-21 01:19:04 C 02 40 41.20 +26 40 12.5 z 118
1996-09-17 00:42:03 C 02 40 55.38 +29 36 30.5 z 118
1996-09-17 00:55:29 C 02 40 55.09 +29 36 33.8 z 118
1996-09-19 00:52:15 C 02 39 51.39 +29 47 41.9 z 118
1996-09-19 00:59:18 C 02 39 51.21 +29 47 43.4 z 118
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)