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
2018-10-18 10:42:18 C 00 09 36.33 +14 31 03.6 U T08
2018-10-18 10:58:30 C 00 09 35.40 +14 30 57.7 U T08
2018-10-19 04:34:11 C 00 08 37.32 +14 24 07.4 V 703
2018-10-19 04:41:51 C 00 08 36.91 +14 24 04.3 V 703
2018-10-19 04:49:29 C 00 08 36.46 +14 24 01.3 V 703
2018-10-19 04:57:09 C 00 08 36.07 +14 23 58.6 V 703
2018-10-21 21:35:42 C 00 05 06.27 +13 58 43.0 V C95
2018-10-21 21:39:05 C 00 05 06.01 +13 58 41.4 V C95
2018-10-26 05:54:07 C 23 59 44.84 +13 17 35.8 V 703
2018-10-26 06:01:20 C 23 59 44.55 +13 17 33.0 V 703
2018-10-26 06:08:33 C 23 59 44.14 +13 17 30.7 V 703
2018-10-26 06:15:46 C 23 59 43.82 +13 17 28.1 V 703
2018-10-26 09:23:19 C 23 59 34.51 +13 16 15.0 U T08
2018-10-26 09:38:16 C 23 59 33.74 +13 16 09.1 U T08
2018-10-26 09:52:24 C 23 59 33.05 +13 16 03.8 U T08
2018-10-26 10:07:01 C 23 59 32.27 +13 15 57.6 U T08
2018-10-28 06:01:30 C 23 57 24.82 +12 58 40.2 V 703
2018-10-28 06:09:17 C 23 57 24.43 +12 58 36.8 V 703
2018-10-28 06:17:02 C 23 57 24.09 +12 58 33.8 V 703
2018-10-28 06:24:48 C 23 57 23.69 +12 58 30.7 V 703
2018-11-01 04:34:26 C 23 53 06.75 +12 21 51.9 V 703
2018-11-01 04:42:30 C 23 53 06.39 +12 21 48.4 V 703
2018-11-01 04:50:36 C 23 53 06.04 +12 21 45.3 V 703
2018-11-01 04:58:41 C 23 53 05.69 +12 21 42.4 V 703
2018-11-01 09:19:54 C 23 52 54.27 +12 20 02.8 U T05
2018-11-01 09:34:09 C 23 52 53.62 +12 19 57.5 U T05
2018-11-01 09:48:35 C 23 52 53.01 +12 19 51.9 U T05
2018-11-01 10:03:21 C 23 52 52.34 +12 19 46.3 U T05
2018-11-02 02:17:20 C 23 52 11.00 +12 13 31.8 V G96
2018-11-02 02:25:29 C 23 52 10.65 +12 13 28.8 V G96
2018-11-02 02:33:39 C 23 52 10.30 +12 13 25.7 V G96
2018-11-02 02:41:50 C 23 52 09.94 +12 13 22.6 V G96
2018-11-02 09:13:42 C 23 51 53.18 +12 10 54.0 U T08
2018-11-02 09:28:06 C 23 51 52.54 +12 10 48.4 U T08
2018-11-02 09:42:35 C 23 51 51.89 +12 10 43.0 U T08
2018-11-02 10:02:33 C 23 51 51.02 +12 10 35.5 U T08
2018-11-03 09:06:20 C 23 50 53.67 +12 01 49.5 V T08
2018-11-03 09:20:45 C 23 50 53.11 +12 01 43.9 V T08
2018-11-03 09:35:28 C 23 50 52.48 +12 01 38.6 V T08
2018-11-03 09:50:18 C 23 50 51.84 +12 01 32.6 V T08
2018-11-04 04:17:36 C 23 50 07.24 +11 54 34.3 V 703
2018-11-04 04:25:13 C 23 50 06.93 +11 54 32.4 V 703
2018-11-04 04:32:51 C 23 50 06.60 +11 54 28.7 V 703
2018-11-04 04:40:28 C 23 50 06.27 +11 54 26.3 V 703
2018-11-05 09:39:23 C 23 48 57.86 +11 43 38.1 U T05
2018-11-05 09:54:30 C 23 48 57.28 +11 43 32.3 U T05
2018-11-05 10:09:38 C 23 48 56.69 +11 43 26.5 U T05
2018-11-05 10:25:01 C 23 48 56.05 +11 43 20.7 U T05
2018-11-06 09:00:28 C 23 48 04.73 +11 35 01.7 U T08
2018-11-06 09:14:57 C 23 48 04.15 +11 34 55.9 U 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)