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
2017-09-01 09:34:56 C 22 20 59.96 -03 06 11.9 q G96
2017-09-01 09:40:58 C 22 20 59.58 -03 06 13.8 q G96
2017-09-01 09:47:01 C 22 20 59.22 -03 06 15.7 q G96
2017-09-01 09:53:06 C 22 20 58.83 -03 06 17.6 q G96
2017-09-02 16:45:31 C 22 19 06.72 -03 16 09.1 q C97
2017-09-02 16:47:41 C 22 19 06.58 -03 16 09.3 q C97
2017-09-02 17:22:50 C 22 19 04.42 -03 16 20.7 q C97
2017-09-02 18:02:06 C 22 19 02.01 -03 16 33.0 q C97
2017-09-11 20:15:38 C 22 06 38.96 -04 24 15.9 q K74
2017-09-11 20:18:57 C 22 06 38.80 -04 24 16.4 q K74
2017-09-14 08:56:55 C 22 03 31.95 -04 42 01.3 L T05
2017-09-14 09:06:33 C 22 03 31.45 -04 42 04.2 L T05
2017-09-14 09:18:06 C 22 03 30.86 -04 42 07.6 L T05
2017-09-14 09:28:41 C 22 03 30.33 -04 42 10.5 L T05
2017-09-15 10:51:16 C 22 02 15.02 -04 49 26.3 L T05
2017-09-15 11:05:12 C 22 02 14.31 -04 49 30.2 L T05
2017-09-15 11:19:58 C 22 02 13.57 -04 49 35.0 L T05
2017-09-15 11:34:42 C 22 02 12.83 -04 49 38.6 L T05
2017-09-16 08:31:59 C 22 01 12.35 -04 55 33.6 L T08
2017-09-16 08:41:41 C 22 01 11.90 -04 55 36.7 L T08
2017-09-16 08:43:05 C 22 01 11.82 -04 55 36.0 L T08
2017-09-16 08:53:42 C 22 01 11.29 -04 55 39.1 L T08
2017-09-16 09:03:48 C 22 01 10.81 -04 55 42.5 L T08
2017-09-16 09:05:26 C 22 01 10.69 -04 55 42.9 L T08
2017-09-16 09:17:32 C 22 01 10.11 -04 55 45.9 L T08
2017-09-17 05:37:35 C 22 00 12.49 -05 01 25.7 q 703
2017-09-17 05:45:25 C 22 00 12.13 -05 01 27.8 q 703
2017-09-17 05:53:15 C 22 00 11.76 -05 01 30.6 q 703
2017-09-17 06:01:07 C 22 00 11.34 -05 01 32.4 q 703
2017-09-20 05:11:23 C 21 56 59.19 -05 20 41.9 q 703
2017-09-20 05:19:13 C 21 56 58.83 -05 20 44.2 q 703
2017-09-20 05:27:04 C 21 56 58.51 -05 20 46.2 q 703
2017-09-20 05:34:53 C 21 56 58.13 -05 20 48.4 q 703
2017-09-25 04:37:40 C 21 52 11.67 -05 50 27.6 q 703
2017-09-25 04:45:29 C 21 52 11.37 -05 50 29.4 q 703
2017-09-25 04:53:17 C 21 52 11.05 -05 50 31.6 q 703
2017-09-25 05:01:04 C 21 52 10.77 -05 50 33.3 q 703
2017-09-26 07:59:56 C 21 51 12.09 -05 56 49.0 L T05
2017-09-26 08:09:44 C 21 51 11.70 -05 56 51.4 L T05
2017-09-26 08:18:43 C 21 51 11.39 -05 56 53.2 L T05
2017-09-26 08:28:16 C 21 51 11.03 -05 56 55.2 L T05
2017-09-29 03:05:11 C 21 48 56.44 -06 11 41.1 q G96
2017-09-29 03:27:57 C 21 48 55.69 -06 11 46.1 q G96
2017-09-29 03:50:06 C 21 48 54.96 -06 11 50.7 q G96
2017-09-29 04:01:17 C 21 48 54.59 -06 11 53.1 q G96
2017-09-30 08:08:45 C 21 48 02.01 -06 17 46.6 L T05
2017-09-30 08:19:09 C 21 48 01.71 -06 17 48.9 L T05
2017-09-30 08:29:56 C 21 48 01.37 -06 17 50.8 L T05
2017-09-30 08:42:07 C 21 48 00.97 -06 17 53.2 L T05
2017-10-07 07:53:36 C 21 43 41.51 -06 48 55.3 L T08
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)