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
2008-09-07 08:19:10 C 00 48 40.54 +17 00 02.9 18.8 c 704
2008-09-07 08:38:29 C 00 48 39.67 +17 00 00.4 18.9 c 704
2008-09-07 08:57:51 C 00 48 38.81 +16 59 58.1 19.1 c 704
2008-09-14 00:17:54 C 00 41 23.10 +16 37 20.8 r J51
2008-09-14 00:27:44 C 00 41 22.64 +16 37 19.0 r J51
2008-09-14 00:37:35 C 00 41 22.14 +16 37 17.1 r J51
2008-09-20 21:05:05 C 00 33 00.41 +16 04 19.7 r J28
2008-09-20 21:28:59 C 00 32 59.08 +16 04 14.5 r J28
2008-09-22 09:45:01 C 00 31 02.38 +15 55 41.9 r 703
2008-09-22 09:55:30 C 00 31 01.81 +15 55 39.6 r 703
2008-09-22 10:05:57 C 00 31 01.23 +15 55 36.9 r 703
2008-09-22 10:16:24 C 00 31 00.69 +15 55 34.2 r 703
2008-09-22 21:02:44 C 00 30 25.97 +15 52 54.7 18.2 r 084
2008-09-22 21:07:58 C 00 30 25.69 +15 52 53.0 18.3 r 084
2008-09-28 09:06:13 C 00 23 08.84 +15 17 34.6 r 703
2008-09-28 09:17:07 C 00 23 08.16 +15 17 31.6 r 703
2008-09-28 09:27:57 C 00 23 07.58 +15 17 28.9 r 703
2008-09-28 09:38:59 C 00 23 06.97 +15 17 25.8 r 703
2008-09-29 08:01:01 C 00 21 51.80 +15 10 53.0 r G96
2008-09-29 08:10:31 C 00 21 51.26 +15 10 50.3 r G96
2008-09-29 08:20:03 C 00 21 50.72 +15 10 47.2 r G96
2008-09-29 08:29:37 C 00 21 50.14 +15 10 44.5 r G96
2008-09-30 22:31:12 C 00 19 41.78 +14 59 16.5 17.9 r 084
2008-09-30 22:36:27 C 00 19 41.45 +14 59 14.9 18.4 r 084
2008-10-02 05:27:05 C 00 17 57.22 +14 49 43.2 18.6 c 704
2008-10-02 05:44:52 C 00 17 56.06 +14 49 38.7 19.3 c 704
2008-10-02 06:02:38 C 00 17 55.08 +14 49 32.1 18.6 c 704
2008-10-02 06:20:26 C 00 17 54.08 +14 49 26.3 18.5 c 704
2008-10-02 06:38:30 C 00 17 53.04 +14 49 21.0 18.5 c 704
2008-10-09 05:21:08 C 00 08 31.92 +13 53 43.1 r G96
2008-10-09 05:28:01 C 00 08 31.56 +13 53 40.6 r G96
2008-10-09 05:34:49 C 00 08 31.16 +13 53 38.2 r G96
2008-10-09 05:41:37 C 00 08 30.76 +13 53 35.8 r G96
2008-10-19 23:38:23 C 23 54 54.06 +12 19 23.4 r 106
2008-10-19 23:51:07 C 23 54 53.44 +12 19 17.4 r 106
2008-10-20 00:03:53 C 23 54 52.82 +12 19 13.4 r 106
2008-10-20 00:16:37 C 23 54 52.15 +12 19 08.5 r 106
2008-10-24 02:32:59 C 23 50 11.38 +11 42 30.8 c H61
2008-10-24 03:03:25 C 23 50 09.96 +11 42 20.2 c H61
2008-10-24 03:39:16 C 23 50 08.26 +11 42 08.1 c H61
2008-10-25 04:05:20 C 23 49 01.92 +11 33 03.6 r 703
2008-10-25 04:19:11 C 23 49 01.27 +11 32 58.8 r 703
2008-10-25 04:33:10 C 23 49 00.62 +11 32 53.4 r 703
2008-10-25 04:47:07 C 23 48 59.97 +11 32 47.8 r 703
2008-10-26 03:24:39 C 23 47 59.68 +11 24 27.3 c H61
2008-10-26 04:20:14 C 23 47 57.20 +11 24 07.3 c H61
2008-10-26 04:40:25 C 23 47 56.42 +11 24 00.2 18.6 c 704
2008-10-26 04:57:02 C 23 47 55.62 +11 23 54.2 18.7 c 704
2008-10-26 05:04:29 C 23 47 55.17 +11 23 49.7 c H61
2008-10-26 05:13:45 C 23 47 54.90 +11 23 48.2 18.8 c 704
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)