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
2020-10-11 05:25:30 C 23 04 55.30 +04 16 03.8 – V 703
2020-10-11 07:29:56 C 23 04 50.602 +04 15 27.77 – U F52
2020-10-11 07:45:52 C 23 04 49.982 +04 15 23.02 – U F52
2020-10-11 08:01:45 C 23 04 49.363 +04 15 18.32 – U F52
2020-10-11 08:17:45 C 23 04 48.739 +04 15 13.70 – U F52
2020-10-13 02:36:06 C 23 03 14.41 +04 02 49.6 – V V19
2020-10-13 03:04:58 C 23 03 13.35 +04 02 40.9 – V V19
2020-10-13 03:36:19 C 23 03 12.16 +04 02 32.1 – V V19
2020-10-14 09:10:20 C 23 02 08.44 +03 54 02.0 – V T08
2020-10-14 09:15:01 C 23 02 08.27 +03 54 00.8 – V T08
2020-10-14 09:23:47 C 23 02 07.96 +03 53 58.3 – V T08
2020-10-14 09:45:16 C 23 02 07.19 +03 53 51.8 – V T08
2020-10-16 09:06:05 C 23 00 29.63 +03 40 29.6 – V T05
2020-10-16 09:10:12 C 23 00 29.46 +03 40 28.5 – V T05
2020-10-16 09:18:52 C 23 00 29.17 +03 40 26.0 – V T05
2020-10-16 09:42:42 C 23 00 28.35 +03 40 20.0 – V T05
2020-10-17 04:10:48 C 22 59 51.84 +03 35 12.0 – V G96
2020-10-17 04:18:18 C 22 59 51.58 +03 35 10.0 – V G96
2020-10-17 04:25:46 C 22 59 51.34 +03 35 07.9 – V G96
2020-10-17 04:33:15 C 22 59 51.09 +03 35 05.8 – V G96
2020-10-18 03:46:25 C 22 59 06.31 +03 28 44.4 – V 703
2020-10-18 03:55:56 C 22 59 05.95 +03 28 42.1 – V 703
2020-10-18 04:14:58 C 22 59 05.28 +03 28 37.2 – V 703
2020-10-18 06:46:14 C 22 59 00.558 +03 27 56.61 – U F51
2020-10-18 07:03:32 C 22 58 59.998 +03 27 51.95 – U F51
2020-10-18 07:21:01 C 22 58 59.423 +03 27 46.94 – U F51
2020-10-18 07:38:28 C 22 58 58.861 +03 27 42.42 – U F51
2020-10-18 07:55:34 C 22 58 58.30 +03 27 37.9 – V T08
2020-10-18 08:02:57 C 22 58 58.08 +03 27 36.2 – V T08
2020-10-18 08:12:15 C 22 58 57.74 +03 27 33.6 – V T08
2020-10-18 08:26:55 C 22 58 57.26 +03 27 29.8 – V T08
2020-10-20 07:45:57 C 22 57 30.42 +03 14 52.9 – V T05
2020-10-20 07:50:39 C 22 57 30.30 +03 14 51.8 – V T05
2020-10-20 08:00:34 C 22 57 29.96 +03 14 49.9 – V T05
2020-10-20 08:49:27 C 22 57 28.52 +03 14 35.3 – V T05
2020-10-22 02:33:59 C 22 56 16.76 +03 03 48.1 – V 703
2020-10-22 02:42:13 C 22 56 16.52 +03 03 46.2 – V 703
2020-10-22 02:50:28 C 22 56 16.28 +03 03 44.6 – V 703
2020-10-22 02:58:43 C 22 56 16.09 +03 03 41.8 – V 703
2020-10-22 07:38:19 C 22 56 08.20 +03 02 32.4 – V T08
2020-10-22 07:42:57 C 22 56 08.06 +03 02 31.2 – V T08
2020-10-22 07:52:54 C 22 56 07.78 +03 02 28.7 – V T08
2020-10-22 08:42:35 C 22 56 06.36 +03 02 15.7 – V T08
2020-10-24 02:02:08 C 22 55 00.30 +02 51 58.8 – V G96
2020-10-24 02:10:09 C 22 55 00.09 +02 51 56.8 – V G96
2020-10-24 02:18:10 C 22 54 59.86 +02 51 54.7 – V G96
2020-10-24 02:26:10 C 22 54 59.68 +02 51 53.1 – V G96
2020-10-24 09:42:05 C 22 54 48.19 +02 50 07.0 – V T05
2020-10-24 09:46:46 C 22 54 48.10 +02 50 06.2 – V T05
2020-10-24 10:20:52 C 22 54 47.19 +02 49 57.7 – V T05
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)