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
2021-10-17 13:07:27 C 06 28 38.23 +41 19 43.1 – V T05
2021-10-17 13:24:08 C 06 28 41.52 +41 19 52.8 – V T05
2021-10-18 00:48:14 C 06 31 01.14 +41 26 13.5 – V M16
2021-10-18 00:58:55 C 06 31 03.27 +41 26 20.0 – V M16
2021-10-18 01:09:36 C 06 31 05.44 +41 26 25.9 – V M16
2021-10-18 01:20:17 C 06 31 07.60 +41 26 32.8 – V M16
2021-10-18 01:36:19 C 06 31 10.86 +41 26 41.4 – V M16
2021-10-19 14:37:35 C 06 39 04.02 +41 47 30.5 – V T08
2021-10-19 14:40:14 C 06 39 04.59 +41 47 32.0 – V T08
2021-10-19 15:03:13 C 06 39 09.54 +41 47 44.8 – V T08
2021-10-20 02:58:23 C 06 41 49.29 +41 54 10.2 – V K87
2021-10-20 03:04:41 C 06 41 50.70 +41 54 13.4 – V K87
2021-10-20 03:11:01 C 06 41 52.14 +41 54 17.1 – V K87
2021-10-20 12:56:54 C 06 44 06.04 +41 59 41.8 – V T05
2021-10-20 13:18:58 C 06 44 11.02 +41 59 54.2 – V T05
2021-10-20 13:21:01 C 06 44 11.48 +41 59 55.5 – V T05
2021-10-20 13:21:41 C 06 44 11.63 +41 59 55.8 – V T05
2021-10-20 13:23:43 C 06 44 12.09 +41 59 56.9 – V T05
2021-10-20 13:49:27 C 06 44 17.89 +42 00 11.3 – V T05
2021-10-20 13:50:07 C 06 44 18.04 +42 00 11.7 – V T05
2021-10-20 14:17:08 C 06 44 24.14 +42 00 26.6 – V T05
2021-10-21 13:48:32 C 06 49 57.09 +42 12 59.3 – V T05
2021-10-21 13:53:08 C 06 49 58.18 +42 13 01.7 – V T05
2021-10-21 14:02:02 C 06 50 00.28 +42 13 06.5 – V T05
2021-10-21 14:04:41 C 06 50 00.90 +42 13 08.0 – V T05
2021-10-21 14:07:19 C 06 50 01.53 +42 13 09.4 – V T05
2021-10-21 14:16:35 C 06 50 03.71 +42 13 14.3 – V T05
2021-10-21 14:27:18 C 06 50 06.28 +42 13 20.1 – V T05
2021-10-21 15:30:20 C 06 50 21.16 +42 13 53.3 – V T05
2021-10-23 12:27:49 C 07 01 45.00 +42 36 32.8 – V T08
2021-10-23 12:32:34 C 07 01 46.24 +42 36 35.2 – V T08
2021-10-23 12:40:43 C 07 01 48.36 +42 36 39.4 – V T08
2021-10-23 12:58:10 C 07 01 52.91 +42 36 48.3 – V T08
2021-10-24 07:59:08 V 07 07 01.41 +42 45 40.0 15.6 V 270
2021-10-24 07:59:08 v 1 276.64247 +33.90561 – – 270
2021-10-24 08:17:36 V 07 07 06.32 +42 45 50.7 15.9 V 270
2021-10-24 08:17:36 v 1 276.64247 +33.90561 – – 270
2021-10-24 22:26:15 V 07 11 04.27 +42 52 01.4 15.4 V 270
2021-10-24 22:26:15 v 1 016.33592 +48.20417 – – 270
2021-10-24 22:45:09 V 07 11 09.75 +42 52 10.2 15.2 V 270
2021-10-24 22:45:09 v 1 016.33592 +48.20417 – – 270
2021-10-25 00:10:28 V 07 11 33.90 +42 52 48.2 15.5 V 270
2021-10-25 00:10:28 v 1 016.33592 +48.20417 – – 270
2021-10-25 00:24:50 V 07 11 37.89 +42 52 54.1 15.4 V 270
2021-10-25 00:24:50 v 1 016.33592 +48.20417 – – 270
2021-10-26 01:37:04 C 07 19 00.65 +43 03 19.8 – V 089
2021-10-26 01:40:23 C 07 19 01.64 +43 03 21.0 – V 089
2021-10-26 01:43:41 C 07 19 02.64 +43 03 22.2 – V 089
2021-10-26 01:46:59 C 07 19 03.62 +43 03 23.8 – V 089
2021-10-26 01:50:17 C 07 19 04.59 +43 03 24.7 – V 089
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)