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
2003-09-19 09:09:12 C 00 28 36.00 +15 18 01.7 c 691
2003-09-19 09:48:08 C 00 28 33.95 +15 17 53.0 c 691
2003-09-19 10:33:40 C 00 28 31.54 +15 17 42.7 c 691
2003-09-20 08:15:45 C 00 27 23.99 +15 12 44.5 18.1 c 644
2003-09-20 08:55:19 C 00 27 21.89 +15 12 35.2 18.1 c 644
2003-09-20 09:43:05 C 00 27 19.35 +15 12 24.0 18.1 c 644
2003-09-20 09:52:26 C 00 27 18.84 +15 12 21.7 18.0 c 644
2003-09-20 10:24:44 C 00 27 17.13 +15 12 14.3 18.0 c 644
2003-09-20 11:14:34 C 00 27 14.47 +15 12 02.5 18.0 c 644
2003-09-20 21:00:48 C 00 26 43.96 +15 09 43.5 o 084
2003-09-21 01:02:17 C 00 26 31.13 +15 08 46.0 c 204
2003-09-21 01:34:16 C 00 26 29.49 +15 08 38.7 c 204
2003-09-21 07:30:25 C 00 26 10.87 +15 07 16.1 18.9 c 704
2003-09-21 07:47:57 C 00 26 09.85 +15 07 11.0 19.3 c 704
2003-09-21 08:05:37 C 00 26 08.91 +15 07 06.0 19.4 c 704
2003-09-21 08:23:06 C 00 26 08.04 +15 07 02.8 19.2 c 704
2003-09-21 08:41:08 C 00 26 07.02 +15 06 57.6 19.2 c 704
2003-09-22 07:04:00 C 00 24 55.97 +15 01 29.5 18.1 c 704
2003-09-22 07:21:35 C 00 24 55.01 +15 01 24.7 18.3 c 704
2003-09-22 07:27:27 C 00 24 54.76 +15 01 22.8 o 699
2003-09-22 07:40:54 C 00 24 53.97 +15 01 19.8 18.9 c 704
2003-09-22 07:51:16 C 00 24 53.45 +15 01 17.5 o 699
2003-09-22 07:58:31 C 00 24 52.95 +15 01 16.6 18.9 c 704
2003-09-22 08:15:12 C 00 24 52.15 +15 01 11.2 o 699
2003-09-22 08:15:56 C 00 24 51.97 +15 01 11.0 18.5 c 704
2003-09-22 08:39:06 C 00 24 50.88 +15 01 05.2 o 699
2003-09-24 10:43:31 C 00 22 09.87 +14 48 16.3 19.1 c 608
2003-09-24 10:58:58 C 00 22 09.06 +14 48 12.0 19.4 c 608
2003-09-24 11:14:21 C 00 22 08.17 +14 48 08.2 19.0 c 608
2003-09-24 20:03:23 C 00 21 39.70 +14 45 44.5 o 084
2003-09-30 05:47:57 C 00 14 33.74 +14 08 41.0 17.8 c 704
2003-09-30 06:07:22 C 00 14 32.67 +14 08 34.9 17.9 c 704
2003-09-30 06:26:00 C 00 14 31.60 +14 08 28.7 18.2 c 704
2003-09-30 06:44:40 C 00 14 30.57 +14 08 23.6 18.3 c 704
2003-09-30 07:03:42 C 00 14 29.49 +14 08 17.3 18.2 c 704
2003-10-05 02:24:57 C 00 08 08.49 +13 31 44.3 o 859
2003-10-05 02:26:44 C 00 08 08.36 +13 31 44.7 o 859
2003-10-05 02:28:26 C 00 08 08.19 +13 31 44.2 o 859
2003-10-17 04:50:23 C 23 52 50.04 +11 50 03.7 o 699
2003-10-17 05:08:13 C 23 52 49.15 +11 49 57.7 o 699
2003-10-17 05:26:03 C 23 52 48.23 +11 49 50.9 o 699
2003-10-17 05:43:54 C 23 52 47.36 +11 49 44.0 o 699
2003-10-21 03:59:47 C 23 48 15.56 +11 15 31.4 18.1 c 644
2003-10-21 04:30:25 C 23 48 14.10 +11 15 20.2 18.0 c 644
2003-10-21 05:01:02 C 23 48 12.65 +11 15 09.3 18.0 c 644
2003-10-21 05:27:11 C 23 48 11.39 +11 14 59.2 18.4 c 704
2003-10-21 05:44:16 C 23 48 10.61 +11 14 53.0 18.9 c 704
2003-10-21 06:00:56 C 23 48 09.78 +11 14 47.4 19.0 c 704
2003-10-21 06:17:37 C 23 48 08.98 +11 14 41.2 18.7 c 704
2003-10-21 06:34:27 C 23 48 08.19 +11 14 35.0 18.9 c 704
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)