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
2020-10-24 10:28:50 C 22 54 47.00 +02 49 56.1 V T05
2020-11-01 06:22:13 C 22 50 44.676 +02 08 11.91 U F52
2020-11-01 06:38:08 C 22 50 44.378 +02 08 08.69 U F52
2020-11-01 06:54:00 C 22 50 44.094 +02 08 05.57 U F52
2020-11-01 07:09:50 C 22 50 43.799 +02 08 02.38 U F52
2020-11-03 07:28:18 C 22 49 56.05 +01 58 37.3 V T08
2020-11-03 07:32:56 C 22 49 55.94 +01 58 37.0 V T08
2020-11-03 07:41:36 C 22 49 55.84 +01 58 34.9 V T08
2020-11-03 07:50:53 C 22 49 55.68 +01 58 33.1 V T08
2020-11-03 08:01:31 C 22 49 55.51 +01 58 31.0 V T08
2020-11-03 08:02:11 C 22 49 55.50 +01 58 32.0 V T08
2020-11-03 08:20:47 C 22 49 55.23 +01 58 27.5 V T08
2020-11-04 06:25:27 C 22 49 35.502 +01 54 20.81 U F52
2020-11-04 06:44:02 C 22 49 35.213 +01 54 17.43 U F52
2020-11-04 07:02:37 C 22 49 34.930 +01 54 13.99 U F52
2020-11-04 07:21:12 C 22 49 34.647 +01 54 10.60 U F52
2020-11-07 08:03:09 C 22 48 38.28 +01 41 28.6 V T08
2020-11-07 08:07:48 C 22 48 38.20 +01 41 28.2 V T08
2020-11-07 08:21:09 C 22 48 38.06 +01 41 25.9 V T08
2020-11-07 08:37:10 C 22 48 37.84 +01 41 23.2 V T08
2020-11-26 02:51:42 C 22 47 32.20 +00 51 50.8 U I41
2020-11-26 03:35:10 C 22 47 32.44 +00 51 48.6 U I41
2020-11-28 02:28:40 C 22 47 51.66 +00 49 30.1 U I41
2020-11-28 03:36:38 C 22 47 52.12 +00 49 27.2 U I41
2020-12-02 03:03:49 C 22 48 44.97 +00 46 23.4 U I41
2020-12-02 03:30:05 C 22 48 45.28 +00 46 22.4 U I41
2020-12-04 04:03:58 C 22 49 18.90 +00 45 37.2 U I41
2020-12-04 04:24:12 C 22 49 19.15 +00 45 36.8 U I41
2021-01-12 10:44:13 C 23 12 17.62 +02 04 31.6 q D29
2021-01-12 11:04:35 C 23 12 18.24 +02 04 34.9 q D29
2021-01-12 11:24:57 C 23 12 19.01 +02 04 37.8 q D29
2021-02-05 02:27:33 C 23 33 55.08 +03 59 44.8 U I41
2021-02-05 02:30:59 C 23 33 55.25 +03 59 45.3 U I41
2021-02-06 02:28:14 C 23 34 55.20 +04 05 28.4 U I41
2021-02-06 02:31:37 C 23 34 55.34 +04 05 29.0 U I41
2021-02-06 02:35:00 C 23 34 55.46 +04 05 29.7 U I41
2021-02-07 02:26:24 C 23 35 55.52 +04 11 14.2 U I41
2021-02-07 02:29:49 C 23 35 55.67 +04 11 15.5 U I41
2021-02-07 02:33:14 C 23 35 55.83 +04 11 15.9 U I41
2021-02-07 02:36:38 C 23 35 55.98 +04 11 17.4 U I41
2021-07-16 14:08:56 C 03 02 12.488 +25 25 38.08 U F51
2021-07-16 14:16:42 C 03 02 12.983 +25 25 40.92 U F51
2021-07-16 14:24:30 C 03 02 13.477 +25 25 43.74 U F51
2021-07-16 14:32:18 C 03 02 13.973 +25 25 46.56 U F51
2021-08-15 14:38:55 C 03 50 44.70 +29 47 15.5 V T08
2021-08-15 14:43:33 C 03 50 45.02 +29 47 17.5 V T08
2021-08-15 14:57:07 C 03 50 45.98 +29 47 22.4 V T08
2021-08-15 14:59:49 C 03 50 46.14 +29 47 23.5 V T08
2021-08-16 14:26:55 C 03 52 26.868 +29 56 07.79 U F51
2021-08-16 14:42:00 C 03 52 27.932 +29 56 13.51 U F51
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)