IAA RAS IAA Minor Planet Database

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
2011-09-30 03:48:47 C 03 55 53.87 +35 44 34.1 – o C60
2011-09-30 03:49:26 C 03 55 53.89 +35 44 34.8 – o C60
2011-09-30 03:50:06 C 03 55 53.90 +35 44 35.8 – o C60
2011-10-03 02:01:14 C 03 56 47.96 +36 21 02.7 – c A24
2011-10-03 02:02:16 C 03 56 47.97 +36 21 03.2 – c A24
2011-10-03 03:08:37 C 03 56 48.50 +36 21 38.4 – c A24
2011-10-03 03:09:39 C 03 56 48.51 +36 21 38.8 – c A24
2011-10-04 00:40:24 C 03 57 01.16 +36 33 08.1 – c A24
2011-10-04 00:41:27 C 03 57 01.19 +36 33 08.4 – c A24
2011-10-04 01:47:14 C 03 57 01.63 +36 33 44.2 – c A24
2011-10-04 01:48:16 C 03 57 01.62 +36 33 44.8 – c A24
2011-10-07 08:27:14 C 03 57 28.55 +37 17 10.7 17.0 c 704
2011-10-07 08:46:05 C 03 57 28.55 +37 17 21.6 17.4 c 704
2011-10-07 09:04:54 C 03 57 28.68 +37 17 30.4 17.9 c 704
2011-10-07 09:42:40 C 03 57 28.54 +37 17 54.0 17.3 c 704
2011-10-13 08:33:19 C 03 56 51.74 +38 42 56.3 – t H47
2011-10-13 08:52:22 C 03 56 51.46 +38 43 08.3 – t H47
2011-10-13 09:13:14 C 03 56 51.14 +38 43 21.1 – t H47
2011-10-16 20:53:04 C 03 55 27.76 +39 37 17.0 – c 127
2011-10-16 21:23:30 C 03 55 27.06 +39 37 38.2 – c 127
2011-10-16 21:30:44 C 03 55 26.89 +39 37 42.6 – c 127
2011-10-21 21:50:23 C 03 51 41.80 +41 01 40.3 – c 127
2011-10-21 21:56:28 C 03 51 41.55 +41 01 44.8 – c 127
2011-10-21 22:03:21 C 03 51 41.25 +41 01 50.0 – c 127
2011-10-21 22:09:03 C 03 51 41.00 +41 01 54.1 – c 127
2011-10-21 22:14:44 C 03 51 40.75 +41 01 58.5 – c 127
2011-10-31 20:49:49 C 03 35 38.42 +44 11 48.9 – c 127
2011-10-31 20:55:52 C 03 35 37.80 +44 11 54.0 – c 127
2011-10-31 21:01:09 C 03 35 37.27 +44 11 59.0 – c 127
2011-10-31 21:06:14 C 03 35 36.75 +44 12 03.2 – c 127
2011-10-31 21:11:21 C 03 35 36.22 +44 12 07.7 – c 127
2011-11-06 02:23:03 C 03 20 20.53 +46 02 52.8 – u C60
2011-11-06 02:23:57 C 03 20 20.40 +46 02 53.5 – u C60
2011-11-06 02:24:51 C 03 20 20.26 +46 02 54.3 – u C60
2011-11-06 02:25:45 C 03 20 20.13 +46 02 55.1 – u C60
2011-11-06 02:26:39 C 03 20 19.99 +46 02 56.0 – u C60
2011-11-06 02:27:33 C 03 20 19.86 +46 02 56.7 – u C60
2011-11-06 02:28:26 C 03 20 19.72 +46 02 57.5 – u C60
2011-11-06 02:29:21 C 03 20 19.58 +46 02 58.3 – u C60
2011-11-06 02:30:14 C 03 20 19.45 +46 02 59.1 – u C60
2011-11-06 02:31:09 C 03 20 19.31 +46 02 59.8 – u C60
2011-11-06 02:32:02 C 03 20 19.18 +46 03 00.7 – u C60
2011-11-06 02:32:57 C 03 20 19.04 +46 03 01.5 – u C60
2011-11-06 02:33:50 C 03 20 18.91 +46 03 02.3 – u C60
2011-11-06 02:35:38 C 03 20 18.64 +46 03 03.8 – u C60
2011-11-06 02:36:33 C 03 20 18.50 +46 03 04.6 – u C60
2011-11-06 02:37:26 C 03 20 18.36 +46 03 05.4 – u C60
2011-11-06 02:38:21 C 03 20 18.23 +46 03 06.2 – u C60
2011-11-06 02:39:14 C 03 20 18.09 +46 03 07.0 – u C60
2011-11-06 02:40:09 C 03 20 17.96 +46 03 07.8 – u C60
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)