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
2002-09-27 19:59:27 C 21 22 39.59 -09 25 13.7 d J87
2002-09-27 20:36:21 C 21 22 38.58 -09 25 20.0 d J87
2002-09-27 21:01:20 C 21 22 37.89 -09 25 23.7 d J87
2002-09-29 03:03:31 C 21 21 53.55 -09 29 58.4 18.1 c 704
2002-09-29 03:49:44 C 21 21 52.42 -09 30 05.2 18.3 c 704
2002-09-29 04:12:51 C 21 21 51.80 -09 30 08.8 18.7 c 704
2002-10-04 04:09:52 C 21 19 26.57 -09 46 05.5 18.3 c 704
2002-10-04 04:32:18 C 21 19 26.16 -09 46 08.3 18.4 c 704
2002-10-04 04:54:54 C 21 19 25.77 -09 46 10.8 18.8 c 704
2002-10-04 05:17:38 C 21 19 25.35 -09 46 13.8 18.3 c 704
2002-10-04 05:40:10 C 21 19 24.95 -09 46 16.5 18.5 c 704
2002-10-05 02:23:40 C 21 19 05.16 -09 48 39.7 18.2 c 704
2002-10-05 02:44:52 C 21 19 04.82 -09 48 41.5 18.9 c 704
2002-10-05 03:06:06 C 21 19 04.45 -09 48 44.8 18.7 c 704
2002-10-05 03:27:53 C 21 19 04.10 -09 48 46.2 18.9 c 704
2002-10-05 03:49:05 C 21 19 03.79 -09 48 49.4 18.7 c 704
2002-10-06 04:11:22 C 21 18 42.32 -09 51 29.6 18.1 c 704
2002-10-06 04:33:45 C 21 18 41.99 -09 51 32.1 18.4 c 704
2002-10-06 04:55:44 C 21 18 41.68 -09 51 35.2 18.9 c 704
2002-10-28 05:22:18 C 21 18 16.06 -10 15 58.0 o 608
2002-10-28 05:37:41 C 21 18 16.23 -10 15 58.2 o 608
2002-10-28 05:53:00 C 21 18 16.34 -10 15 57.4 o 608
2002-10-29 01:53:12 C 21 18 29.79 -10 15 45.6 18.8 c 704
2002-10-29 02:17:54 C 21 18 29.99 -10 15 45.0 20.0 c 704
2002-10-29 02:42:18 C 21 18 30.19 -10 15 46.3 20.0 c 704
2002-10-29 03:06:52 C 21 18 30.60 -10 15 45.3 19.7 c 704
2002-10-29 03:31:28 C 21 18 30.86 -10 15 44.6 19.1 c 704
2002-11-30 07:14:38 C 21 36 24.19 -09 15 18.8 o 608
2002-11-30 07:29:48 C 21 36 24.69 -09 15 17.1 o 608
2002-11-30 07:44:56 C 21 36 25.17 -09 15 15.3 o 608
2003-07-31 14:15:43 C 01 03 40.02 +15 57 36.5 o 608
2003-07-31 14:31:11 C 01 03 39.95 +15 57 39.1 o 608
2003-07-31 14:47:16 C 01 03 39.82 +15 57 40.9 o 608
2003-08-13 01:03:12 C 01 00 33.87 +16 25 15.5 d 170
2003-08-13 01:06:55 C 01 00 33.82 +16 25 16.0 d 170
2003-08-13 01:11:15 C 01 00 33.74 +16 25 16.4 d 170
2003-08-24 01:36:59 C 00 54 37.21 +16 31 45.2 r 198
2003-08-24 01:47:07 C 00 54 36.93 +16 31 45.1 r 198
2003-08-24 02:07:18 C 00 54 36.35 +16 31 44.9 r 198
2003-09-03 23:49:06 C 00 45 40.50 +16 17 33.7 r 106
2003-09-03 23:57:34 C 00 45 40.19 +16 17 33.2 r 106
2003-09-04 00:06:02 C 00 45 39.81 +16 17 31.8 r 106
2003-09-17 21:52:37 C 00 30 24.78 +15 25 43.8 r 240
2003-09-17 21:56:12 C 00 30 24.61 +15 25 43.1 r 240
2003-09-17 21:59:48 C 00 30 24.40 +15 25 42.6 r 240
2003-09-17 22:12:23 C 00 30 23.73 +15 25 40.3 r 240
2003-09-17 22:15:59 C 00 30 23.52 +15 25 39.6 r 240
2003-09-18 10:10:13 C 00 29 47.14 +15 23 08.6 19.6 c 608
2003-09-18 10:25:26 C 00 29 46.36 +15 23 05.2 20.1 c 608
2003-09-18 10:40:08 C 00 29 45.57 +15 23 01.8 19.5 c 608
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)