396593 (2001 HC)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4993923228 ± 2.00e+00
Semi-major axis (a)0.8746252488 AU ± 3.00e+00
Inclination (i)23.73522068° ± 4.00e+00
Long. of Asc. Node (Ω)32.58222639° ± 5.00e+00
Arg. of Perihelion (ω)28.18976011° ± 6.00e+00
Mean Anomaly (M)132.95534077° ± 2.55e-05
Mean Motion (n)1.2049783958°/day ± 6.20e+00
Perihelion dist (q)0.43784411 AU ± 2.31e+00
Aphelion dist (Q)1.31140638 AU ± 4.83e+00
Orbital Period0.81796179 yr ± 4.21e+00
NGA Modelr2
A21.94041975e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.06
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.402″
Uncertainty0
Orbit TypeAten
MOID0.104557 AU
Observations Used342
Oppositions5
Arc Total2001-2024
First Observation Used2001-04-16
Last Observation Used2024-05-15
Observations (413)
Date Type RA Dec Mag Band Observatory
2019-04-09 14:10:30 C 16 59 44.47 -07 50 20.1 V T05
2019-04-09 14:11:10 C 16 59 44.23 -07 50 21.9 V T05
2019-04-09 14:25:31 C 16 59 39.08 -07 50 59.4 V T05
2019-04-09 14:26:10 C 16 59 38.86 -07 51 00.9 V T05
2019-04-09 14:40:57 C 16 59 33.56 -07 51 39.6 V T05
2019-04-11 03:21:11 C 16 46 25.17 -09 28 49.4 V K74
2019-04-11 03:24:16 C 16 46 24.02 -09 28 57.6 V K74
2019-04-11 03:27:01 C 16 46 23.00 -09 29 04.6 V K74
2019-04-11 13:24:04 C 16 42 40.87 -09 55 27.8 V T08
2019-04-11 13:37:55 C 16 42 35.48 -09 56 05.0 V T08
2019-04-11 13:52:46 C 16 42 29.69 -09 56 44.9 V T08
2019-04-13 10:44:22 C 16 25 00.03 -11 58 08.5 o 691
2019-04-13 11:03:42 C 16 24 52.00 -11 59 00.7 o 691
2019-04-13 11:22:56 C 16 24 44.01 -11 59 52.7 o 691
2019-04-14 09:47:31 C 16 15 35.10 -13 00 23.2 o 691
2019-04-14 09:52:43 C 16 15 32.88 -13 00 37.2 o 691
2019-04-14 09:57:55 C 16 15 30.65 -13 00 51.3 o 691
2019-04-14 10:26:09 C 16 15 18.55 -13 02 07.5 V 703
2019-04-14 10:33:42 C 16 15 15.33 -13 02 27.8 V 703
2019-04-14 10:41:14 C 16 15 12.10 -13 02 47.9 V 703
2019-04-14 10:48:46 C 16 15 08.91 -13 03 08.8 V 703
2019-04-15 12:37:32 C 16 04 17.32 -14 11 52.9 V T08
2019-04-15 12:51:03 C 16 04 11.37 -14 12 28.7 V T08
2019-04-15 13:04:32 C 16 04 05.43 -14 13 04.1 V T08
2019-04-15 13:17:55 C 16 03 59.52 -14 13 39.5 V T08
2019-04-16 08:00:10 C 15 55 57.83 -15 02 45.4 o 691
2019-04-16 08:04:54 C 15 55 55.73 -15 02 57.8 o 691
2019-04-16 08:09:36 C 15 55 53.63 -15 03 10.2 o 691
2019-04-16 11:58:12 C 15 54 13.66 -15 12 55.4 V T05
2019-04-16 12:09:26 C 15 54 08.63 -15 13 24.6 V T05
2019-04-16 12:20:39 C 15 54 03.59 -15 13 53.4 V T05
2019-04-16 12:30:32 C 15 53 59.12 -15 14 19.0 V T05
2019-04-17 12:13:48 C 15 43 34.19 -16 14 32.3 V T05
2019-04-17 12:28:18 C 15 43 27.60 -16 15 08.2 V T05
2019-04-17 12:33:10 C 15 43 25.36 -16 15 20.4 V T05
2019-04-17 12:42:46 C 15 43 20.98 -16 15 44.4 V T05
2019-04-17 12:57:35 C 15 43 14.21 -16 16 21.1 V T05
2019-04-17 13:02:13 C 15 43 12.10 -16 16 32.7 V T05
2019-04-17 13:02:53 C 15 43 11.72 -16 16 35.1 V T05
2019-04-17 13:16:56 C 15 43 05.40 -16 17 09.1 V T05
2019-04-22 13:10:04 C 14 49 37.23 -20 37 35.7 V T08
2019-04-22 13:23:32 C 14 49 31.20 -20 37 59.3 V T08
2019-04-22 13:36:52 C 14 49 25.20 -20 38 23.0 V T08
2019-04-22 13:52:44 C 14 49 18.05 -20 38 50.7 V T08
2019-04-24 10:16:57 C 14 30 13.55 -21 51 51.1 V T05
2019-04-24 10:18:56 C 14 30 12.70 -21 51 54.3 V T05
2019-04-24 10:22:13 C 14 30 11.26 -21 51 59.1 V T05
2019-04-24 10:33:40 C 14 30 06.29 -21 52 16.2 V T05
2019-04-24 10:37:52 C 14 30 04.46 -21 52 22.6 V T05
2019-04-24 10:49:04 C 14 29 59.59 -21 52 39.2 V T05