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
2021-10-26 01:53:35 C 07 19 05.56 +43 03 26.1 – V 089
2021-10-26 01:56:53 C 07 19 06.55 +43 03 27.6 – V 089
2021-10-26 02:00:11 C 07 19 07.53 +43 03 29.0 – V 089
2021-10-26 02:03:29 C 07 19 08.52 +43 03 30.6 – V 089
2021-10-26 02:06:47 C 07 19 09.48 +43 03 31.7 – V 089
2021-10-26 05:42:49 V 07 20 15.80 +43 04 51.9 15.7 V 270
2021-10-26 05:42:49 v 1 276.64247 +33.90561 – – 270
2021-10-26 05:53:09 V 07 20 18.83 +43 04 55.8 15.9 V 270
2021-10-26 05:53:09 v 1 276.64247 +33.90561 – – 270
2021-10-26 05:55:22 V 07 20 19.76 +43 04 57.0 15.6 V 270
2021-10-26 05:55:22 v 1 276.64247 +33.90561 – – 270
2021-10-26 06:18:43 V 07 20 26.56 +43 05 05.0 15.8 V 270
2021-10-26 06:18:43 v 1 276.64247 +33.90561 – – 270
2021-10-26 07:26:31 V 07 20 47.05 +43 05 34.9 15.5 V 270
2021-10-26 07:26:31 v 1 276.64247 +33.90561 – – 270
2021-10-28 16:29:32 V 07 39 17.74 +43 23 08.3 15.8 V 270
2021-10-28 16:29:32 v 1 134.17914 +34.51210 – – 270
2021-10-28 17:21:07 V 07 39 35.35 +43 23 21.5 15.8 V 270
2021-10-28 17:21:07 v 1 134.17914 +34.51210 – – 270
2021-10-28 18:04:55 V 07 39 50.30 +43 23 33.1 15.6 V 270
2021-10-28 18:04:55 v 1 134.17914 +34.51210 – – 270
2021-10-28 18:44:14 V 07 40 03.71 +43 23 41.9 15.6 V 270
2021-10-28 18:44:14 v 1 134.17914 +34.51210 – – 270
2021-10-30 09:36:34 C 07 54 08.11 +43 29 34.8 – V 703
2021-10-30 09:44:31 C 07 54 11.19 +43 29 36.6 – V 703
2021-10-30 09:52:29 C 07 54 14.14 +43 29 37.9 – V 703
2021-10-30 10:00:26 C 07 54 17.18 +43 29 38.9 – V 703
2021-10-31 13:40:03 C 08 05 03.20 +43 29 59.9 – V T08
2021-10-31 13:46:44 C 08 05 05.85 +43 29 59.8 – V T08
2021-10-31 13:54:36 C 08 05 08.96 +43 29 59.6 – V T08
2021-10-31 13:55:55 C 08 05 09.48 +43 29 59.4 – V T08
2021-10-31 14:10:34 C 08 05 15.25 +43 29 59.1 – V T08
2021-11-02 00:10:18 V 08 19 25.23 +43 24 25.3 15.4 V 270
2021-11-02 00:10:18 v 1 358.77203 +51.76577 – – 270
2021-11-02 00:34:08 V 08 19 35.42 +43 24 21.1 15.5 V 270
2021-11-02 00:34:08 v 1 358.77203 +51.76577 – – 270
2021-11-02 00:43:24 V 08 19 39.33 +43 24 17.8 15.7 V 270
2021-11-02 00:43:24 v 1 358.77203 +51.76577 – – 270
2021-11-02 00:52:40 V 08 19 43.36 +43 24 16.5 16.0 V 270
2021-11-02 00:52:40 v 1 358.77203 +51.76577 – – 270
2021-11-02 10:18:13 C 08 23 50.11 +43 21 38.6 – V 703
2021-11-02 10:26:02 C 08 23 53.55 +43 21 38.2 – V 703
2021-11-02 10:33:51 C 08 23 56.85 +43 21 34.8 – V 703
2021-11-02 10:41:40 C 08 24 00.32 +43 21 33.0 – V 703
2021-11-03 10:33:33 C 08 34 47.41 +43 11 38.1 – V G96
2021-11-03 10:41:07 C 08 34 50.88 +43 11 34.5 – V G96
2021-11-03 10:48:40 C 08 34 54.33 +43 11 30.9 – V G96
2021-11-03 10:56:14 C 08 34 57.79 +43 11 27.3 – V G96
2021-11-04 07:42:26 V 08 44 47.29 +42 58 53.7 15.7 V 270
2021-11-04 07:42:26 v 1 254.91687 +40.19618 – – 270
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)