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
2002-08-26 08:57:45 C 22 00 59.56 -06 09 00.6 16.5 c 644
2002-08-26 09:20:19 C 22 00 57.95 -06 09 08.0 16.4 c 644
2002-08-27 04:56:05 C 21 59 36.82 -06 15 31.6 o 644
2002-08-27 06:29:34 C 21 59 30.25 -06 16 02.0 o 644
2002-08-27 07:59:41 C 21 59 23.94 -06 16 31.2 o 644
2002-08-27 22:57:12 C 21 58 22.46 -06 21 21.9 941
2002-08-27 23:01:19 C 21 58 22.22 -06 21 23.0 941
2002-08-27 23:04:56 C 21 58 21.96 -06 21 24.4 941
2002-08-27 23:08:34 C 21 58 21.72 -06 21 25.6 941
2002-08-27 23:12:13 C 21 58 21.46 -06 21 26.9 941
2002-08-27 23:15:52 C 21 58 21.26 -06 21 28.0 941
2002-08-28 04:39:46 C 21 57 59.28 -06 23 12.9 17.4 c 704
2002-08-28 04:59:26 C 21 57 57.92 -06 23 19.4 17.4 c 704
2002-08-28 05:19:00 C 21 57 56.54 -06 23 25.4 17.5 c 704
2002-08-28 05:38:35 C 21 57 55.21 -06 23 32.0 17.6 c 704
2002-08-28 05:58:07 C 21 57 53.88 -06 23 38.1 17.5 c 704
2002-09-06 04:40:51 C 21 44 21.21 -07 29 17.5 17.5 c 704
2002-09-06 05:01:18 C 21 44 20.00 -07 29 23.9 17.7 c 704
2002-09-06 05:21:59 C 21 44 18.80 -07 29 29.7 17.6 c 704
2002-09-06 05:42:31 C 21 44 17.53 -07 29 35.5 17.3 c 704
2002-09-06 06:02:55 C 21 44 16.38 -07 29 41.5 17.8 c 704
2002-09-09 07:46:44 C 21 40 11.47 -07 50 08.0 18.4 c 608
2002-09-09 08:01:52 C 21 40 10.62 -07 50 12.2 18.4 c 608
2002-09-09 08:17:07 C 21 40 09.80 -07 50 16.0 18.4 c 608
2002-09-12 20:07:07 C 21 35 54.85 -08 12 05.1 c 185
2002-09-12 20:19:06 C 21 35 54.26 -08 12 08.5 c 185
2002-09-12 20:27:03 C 21 35 53.86 -08 12 10.6 c 185
2002-09-12 20:35:21 C 21 35 53.44 -08 12 12.8 c 185
2002-09-13 03:18:52 C 21 35 34.23 -08 13 51.9 17.3 c 644
2002-09-13 03:49:20 C 21 35 32.75 -08 13 59.7 17.3 c 644
2002-09-13 04:19:31 C 21 35 31.26 -08 14 07.0 17.2 c 644
2002-09-14 03:44:04 C 21 34 25.49 -08 19 49.8 17.5 c 644
2002-09-14 04:14:15 C 21 34 24.04 -08 19 57.3 17.4 c 644
2002-09-14 04:45:01 C 21 34 22.60 -08 20 04.5 17.3 c 644
2002-09-14 18:50:35 C 21 33 44.05 -08 23 27.9 c 185
2002-09-14 19:05:30 C 21 33 43.36 -08 23 31.7 c 185
2002-09-14 19:24:21 C 21 33 42.54 -08 23 36.4 c 185
2002-09-16 05:03:37 C 21 32 13.54 -08 31 27.1 18.8 c 608
2002-09-16 05:19:01 C 21 32 12.84 -08 31 30.4 18.5 c 608
2002-09-16 05:34:15 C 21 32 12.14 -08 31 33.6 19.1 c 608
2002-09-22 07:44:04 C 21 26 35.07 -09 02 15.0 o 644
2002-09-22 07:46:10 C 21 26 35.11 -09 02 15.0 18.6 c 608
2002-09-22 08:01:12 C 21 26 34.60 -09 02 17.9 18.6 c 608
2002-09-22 08:15:55 C 21 26 33.97 -09 02 21.0 o 644
2002-09-22 08:16:09 C 21 26 34.03 -09 02 20.5 18.6 c 608
2002-09-22 08:46:15 C 21 26 32.91 -09 02 26.8 o 644
2002-09-26 02:56:50 C 21 23 45.90 -09 18 34.4 c 699
2002-09-26 03:22:07 C 21 23 45.15 -09 18 38.5 c 699
2002-09-26 03:47:20 C 21 23 44.42 -09 18 42.9 c 699
2002-09-26 04:12:37 C 21 23 43.68 -09 18 47.1 c 699
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)