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
2005-11-02 05:55:43 C 22 37 48.264 +00 09 26.85 e 645
2005-11-02 06:00:43 C 22 37 48.198 +00 09 26.04 20.15 e 645
2005-11-06 03:59:07 C 22 36 47.192 -00 04 54.07 e 645
2005-11-06 04:04:07 C 22 36 47.145 -00 04 54.80 20.14 e 645
2005-12-01 03:40:50 C 22 38 13.817 -00 46 45.77 e 645
2005-12-01 03:45:50 C 22 38 13.881 -00 46 45.78 20.51 e 645
2005-12-21 02:43:15 C 22 47 26.23 -00 24 07.1 r 703
2005-12-21 02:53:55 C 22 47 26.37 -00 24 08.4 r 703
2005-12-21 03:04:35 C 22 47 26.84 -00 24 06.8 r 703
2005-12-21 03:15:14 C 22 47 26.98 -00 24 05.6 r 703
2006-08-23 09:00:22 C 03 09 57.28 +28 40 10.6 18.7 c 704
2006-08-23 09:13:58 C 03 09 57.77 +28 40 14.6 19.0 c 704
2006-08-23 09:27:41 C 03 09 58.27 +28 40 20.6 19.1 c 704
2006-08-23 09:41:30 C 03 09 58.64 +28 40 25.2 18.9 c 704
2006-08-29 22:54:52 C 03 14 50.96 +29 35 42.9 16.9 r 084
2006-08-29 23:00:03 C 03 14 51.11 +29 35 44.7 17.2 r 084
2006-09-04 00:19:04 C 03 18 04.28 +30 19 15.2 18.4 r 084
2006-09-04 00:24:15 C 03 18 04.40 +30 19 17.3 18.2 r 084
2006-09-11 23:24:51 C 03 21 57.88 +31 29 38.8 17.2 r 084
2006-09-16 00:09:13 C 03 23 16.00 +32 06 16.5 17.6 r 084
2006-09-16 00:14:24 C 03 23 16.03 +32 06 18.5 17.6 r 084
2006-09-16 22:42:09 C 03 23 29.75 +32 14 54.3 17.1 r 084
2006-09-19 08:36:24 C 03 23 56.41 +32 37 16.9 18.0 c 704
2006-09-19 08:54:18 C 03 23 56.52 +32 37 24.2 18.0 c 704
2006-09-19 09:11:51 C 03 23 56.59 +32 37 31.2 18.0 c 704
2006-09-19 09:29:07 C 03 23 56.64 +32 37 38.0 18.2 c 704
2006-09-19 09:46:51 C 03 23 56.77 +32 37 45.2 18.1 c 704
2006-09-20 19:56:15 C 03 24 06.29 +32 50 58.5 r 113
2006-09-20 19:57:57 C 03 24 06.33 +32 50 59.1 r 113
2006-09-20 19:59:37 C 03 24 06.34 +32 50 59.4 r 113
2006-09-20 20:01:18 C 03 24 06.37 +32 50 59.9 r 113
2006-09-20 20:02:59 C 03 24 06.41 +32 51 01.0 r 113
2006-09-21 02:12:43 C 03 24 07.19 +32 53 26.7 17.3 r 084
2006-09-21 02:17:54 C 03 24 07.18 +32 53 29.1 17.4 r 084
2006-09-21 22:12:28 C 03 24 10.15 +33 01 16.4 17.5 r 084
2006-09-22 23:31:39 C 03 24 11.15 +33 11 13.8 17.2 r 084
2006-09-22 23:36:49 C 03 24 11.16 +33 11 15.9 17.2 r 084
2006-09-23 21:41:41 C 03 24 09.83 +33 19 58.2 17.4 r 084
2006-09-23 21:46:51 C 03 24 09.83 +33 20 00.2 17.4 r 084
2006-09-25 07:18:19 C 03 24 03.45 +33 33 20.9 r 703
2006-09-25 07:30:27 C 03 24 03.38 +33 33 26.1 r 703
2006-09-25 07:42:37 C 03 24 03.31 +33 33 31.0 r 703
2006-09-25 07:54:47 C 03 24 03.24 +33 33 35.6 r 703
2006-09-27 20:40:27 C 03 23 37.28 +33 57 47.8 16.9 r 084
2006-09-27 20:45:38 C 03 23 37.23 +33 57 50.0 17.0 r 084
2006-09-30 00:54:38 C 03 22 59.54 +34 18 51.9 o 493
2006-09-30 01:30:38 C 03 22 58.93 +34 19 07.3 o 493
2006-09-30 02:01:50 C 03 22 58.42 +34 19 19.9 o 493
2006-09-30 22:34:45 C 03 22 39.60 +34 27 36.0 o 493
2006-09-30 23:46:59 C 03 22 38.29 +34 28 06.4 o 493
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)