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
2001-12-10 03:12:48 C 23 54 47.85 +19 59 20.5 15.4 c 704
2001-12-10 03:34:25 C 23 54 46.07 +19 58 57.5 15.4 c 704
2001-12-10 03:56:04 C 23 54 44.29 +19 58 34.6 15.6 c 704
2001-12-10 04:17:42 C 23 54 42.51 +19 58 11.4 15.3 c 704
2001-12-10 04:39:20 C 23 54 40.71 +19 57 48.8 15.4 c 704
2001-12-30 17:00:25 C 23 27 15.60 +11 59 53.7 151
2001-12-30 17:03:19 C 23 27 15.46 +11 59 50.9 151
2001-12-30 17:06:25 C 23 27 15.30 +11 59 48.0 151
2001-12-30 17:11:23 C 23 27 15.07 +11 59 43.7 151
2001-12-30 19:36:52 C 23 27 09.02 +11 57 30.2 c 185
2001-12-30 19:41:45 C 23 27 08.81 +11 57 25.6 c 185
2001-12-30 19:59:55 C 23 27 08.06 +11 57 09.3 c 185
2001-12-30 20:05:15 C 23 27 07.84 +11 57 04.1 c 185
2002-01-03 08:34:45 C 23 23 50.67 +10 39 38.3 349
2002-01-03 08:37:11 C 23 23 50.57 +10 39 36.2 349
2002-01-03 08:39:28 C 23 23 50.49 +10 39 33.9 349
2002-01-03 08:41:43 C 23 23 50.40 +10 39 31.8 349
2002-01-04 18:22:51 C 23 22 32.22 +10 08 12.3 104
2002-01-04 18:23:50 C 23 22 32.18 +10 08 11.5 104
2002-01-04 18:25:31 C 23 22 32.11 +10 08 09.9 104
2002-01-04 18:28:09 C 23 22 32.00 +10 08 07.5 104
2002-01-05 18:09:57 C 23 21 36.80 +09 45 51.4 c 215
2002-01-05 18:10:41 C 23 21 36.75 +09 45 50.7 c 215
2002-01-05 18:11:17 C 23 21 36.74 +09 45 50.1 c 215
2002-06-10 09:48:21 C 23 25 34.61 -02 21 17.9 c 699
2002-06-10 10:28:10 C 23 25 34.80 -02 21 10.1 c 699
2002-06-10 10:46:37 C 23 25 34.91 -02 21 06.7 c 699
2002-06-10 11:04:59 C 23 25 35.03 -02 21 02.7 c 699
2002-06-25 13:21:15 C 23 23 58.47 -01 30 42.6 18.4 c 608
2002-06-25 13:36:40 C 23 23 58.19 -01 30 41.2 18.2 c 608
2002-06-25 13:52:20 C 23 23 57.92 -01 30 40.1 18.6 c 608
2002-07-04 10:54:59 C 23 19 09.47 -01 23 30.2 m 333
2002-07-04 11:03:13 C 23 19 09.26 -01 23 29.9 m 333
2002-07-04 11:11:24 C 23 19 08.89 -01 23 29.6 m 333
2002-07-09 09:08:52 C 23 15 10.81 -01 27 17.8 17.6 c 704
2002-07-09 09:27:59 C 23 15 10.08 -01 27 19.3 17.8 c 704
2002-07-09 09:47:06 C 23 15 09.33 -01 27 20.0 17.7 c 704
2002-07-09 10:06:12 C 23 15 08.57 -01 27 21.2 17.7 c 704
2002-07-09 10:25:18 C 23 15 07.80 -01 27 22.4 17.7 c 704
2002-07-14 08:35:53 C 23 10 11.80 -01 37 00.2 17.1 c 704
2002-07-14 08:54:43 C 23 10 10.91 -01 37 01.8 17.3 c 704
2002-07-14 09:13:34 C 23 10 10.03 -01 37 03.8 17.4 c 704
2002-07-14 09:32:25 C 23 10 09.13 -01 37 06.1 17.2 c 704
2002-07-14 09:51:15 C 23 10 08.24 -01 37 07.7 17.4 c 704
2002-07-15 09:30:42 C 23 09 02.29 -01 39 45.7 c 670
2002-07-15 10:39:50 C 23 08 58.87 -01 39 53.3 c 670
2002-08-01 04:28:44 C 22 45 14.49 -02 57 45.8 m 859
2002-08-01 04:35:17 C 22 45 14.24 -02 57 48.1 m 859
2002-08-01 04:42:35 C 22 45 13.71 -02 57 51.3 m 859
2002-08-04 08:29:54 C 22 39 53.71 -03 18 44.9 m G78
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)