IAA RAS IAA Minor Planet Database

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
2023-10-14 04:38:17 C 00 22 52.705 +16 14 44.52 – V 703
2023-10-14 04:45:57 C 00 22 52.248 +16 14 41.68 – V 703
2023-10-14 04:53:38 C 00 22 51.773 +16 14 38.94 – V 703
2023-10-14 05:01:20 C 00 22 51.323 +16 14 36.60 – V 703
2023-10-14 09:39:02 C 00 22 34.534 +16 12 53.89 – V T05
2023-10-14 09:46:35 C 00 22 34.078 +16 12 51.12 – V T05
2023-10-14 10:32:36 C 00 22 31.255 +16 12 33.66 – V T05
2023-10-14 10:36:42 C 00 22 31.008 +16 12 32.22 – V T05
2023-10-15 22:02:48 C 00 20 24.130 +15 59 16.40 – V M22
2023-10-15 22:07:22 C 00 20 23.844 +15 59 14.32 – V M22
2023-10-15 22:21:35 C 00 20 22.992 +15 59 08.95 – V M22
2023-10-15 22:45:05 C 00 20 21.574 +15 59 00.31 – V M22
2023-10-16 04:31:14 C 00 20 01.241 +15 56 43.69 – V 703
2023-10-16 04:39:04 C 00 20 00.748 +15 56 40.34 – V 703
2023-10-16 04:46:55 C 00 20 00.283 +15 56 37.18 – V 703
2023-10-16 04:54:45 C 00 19 59.840 +15 56 34.55 – V 703
2023-10-18 05:19:15 C 00 17 08.797 +15 37 54.34 – V 703
2023-10-18 05:26:52 C 00 17 08.351 +15 37 50.77 – V 703
2023-10-18 05:34:28 C 00 17 07.904 +15 37 48.25 – V 703
2023-10-18 05:42:04 C 00 17 07.454 +15 37 45.26 – V 703
2023-10-18 09:38:59 C 00 16 53.575 +15 36 13.93 – V T05
2023-10-18 09:43:33 C 00 16 53.311 +15 36 11.84 – V T05
2023-10-18 09:51:32 C 00 16 52.829 +15 36 08.71 – V T05
2023-10-18 10:09:05 C 00 16 51.780 +15 36 02.02 – V T05
2023-10-21 06:50:54 C 00 12 55.264 +15 08 51.55 – X F51
2023-10-21 07:09:08 C 00 12 54.211 +15 08 44.30 – X F51
2023-10-21 07:27:30 C 00 12 53.151 +15 08 36.93 – X F51
2023-10-21 07:59:58 C 00 12 51.273 +15 08 24.06 – X F51
2023-10-22 03:25:57 C 00 11 45.787 +15 00 35.50 – V 703
2023-10-22 03:33:45 C 00 11 45.341 +15 00 32.87 – V 703
2023-10-22 03:41:32 C 00 11 44.905 +15 00 29.38 – V 703
2023-10-22 03:49:20 C 00 11 44.459 +15 00 26.17 – V 703
2023-10-25 04:23:38 C 00 07 45.660 +14 31 10.02 – V W68
2023-10-25 05:15:36 C 00 07 42.814 +14 30 49.50 – V W68
2023-10-25 05:35:31 C 00 07 41.743 +14 30 40.93 – V W68
2023-10-25 05:44:24 C 00 07 41.222 +14 30 36.47 – V W68
2023-10-30 10:06:14 C 00 01 19.586 +13 39 57.74 – V T05
2023-10-30 10:10:48 C 00 01 19.380 +13 39 55.76 – V T05
2023-10-30 10:18:37 C 00 01 18.996 +13 39 52.85 – V T05
2023-10-30 10:48:37 C 00 01 17.513 +13 39 41.22 – V T05
2023-10-31 05:56:53 C 00 00 22.38 +13 31 54.4 – q U55
2023-10-31 06:06:07 C 00 00 22.03 +13 31 50.5 – q U55
2023-10-31 06:14:37 C 00 00 21.57 +13 31 46.5 – q U55
2023-11-01 05:40:09 C 23 59 15.328 +13 22 21.54 – X F51
2023-11-01 05:57:21 C 23 59 14.505 +13 22 14.67 – X F51
2023-11-01 06:14:34 C 23 59 13.680 +13 22 07.77 – X F51
2023-11-03 04:14:52 C 23 57 07.697 +13 03 41.36 – V 703
2023-11-03 04:23:33 C 23 57 07.362 +13 03 38.12 – V 703
2023-11-03 04:32:13 C 23 57 06.937 +13 03 34.63 – V 703
2023-11-03 04:40:40 C 23 57 06.548 +13 03 31.72 – V 703
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)