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
2001-04-22 15:08:42 C 14 23 39.72 -16 55 43.8 402
2001-04-23 11:39:14 C 14 14 45.73 -17 30 16.3 428
2001-04-23 11:40:58 C 14 14 44.97 -17 30 19.6 428
2001-04-23 11:42:38 C 14 14 44.23 -17 30 21.8 428
2001-04-23 11:43:57 C 14 14 43.63 -17 30 24.7 428
2001-04-23 21:42:09 C 14 10 29.41 -17 47 21.8 176
2001-04-23 21:53:40 C 14 10 24.41 -17 47 39.9 176
2001-04-23 22:06:10 C 14 10 18.98 -17 47 59.6 176
2001-04-23 23:26:36 C 14 09 43.79 -17 50 10.5 595
2001-04-23 23:29:28 C 14 09 42.55 -17 50 15.5 595
2001-04-23 23:33:37 C 14 09 40.78 -17 50 21.7 595
2001-04-23 23:41:26 C 14 09 37.38 -17 50 34.0 595
2001-04-24 05:59:28 C 14 07 00.06 -18 00 16.1 16.8 739
2001-04-24 06:03:17 C 14 06 58.43 -18 00 22.3 16.7 739
2001-04-24 06:11:44 C 14 06 54.79 -18 00 35.3 16.9 739
2001-04-24 22:59:37 C 14 00 02.31 -18 25 13.4 071
2001-04-24 23:03:51 C 14 00 00.62 -18 25 20.0 071
2001-04-24 23:09:23 C 13 59 58.17 -18 25 27.5 071
2001-04-25 21:08:01 C 13 51 20.24 -18 54 58.3 118
2001-04-25 21:12:09 C 13 51 18.59 -18 55 03.7 118
2001-04-26 06:02:32 C 13 47 55.38 -19 06 00.5 649
2001-04-26 06:07:07 C 13 47 53.62 -19 06 05.9 649
2001-04-26 06:11:06 C 13 47 52.05 -19 06 10.6 649
2001-04-26 06:14:48 C 13 47 50.64 -19 06 15.2 649
2001-04-28 04:11:30 C 13 31 21.58 -19 56 02.7 17.1 739
2001-04-28 04:13:09 C 13 31 20.96 -19 56 04.7 17.5 739
2001-04-28 04:15:30 C 13 31 20.16 -19 56 06.8 16.7 739
2001-04-28 20:49:48 C 13 25 49.15 -20 11 18.4 952
2001-04-28 20:57:46 C 13 25 46.56 -20 11 25.7 952
2001-04-28 21:07:12 C 13 25 43.43 -20 11 34.4 952
2001-04-28 22:30:30 C 13 25 14.59 -20 12 48.5 071
2001-04-28 22:34:45 C 13 25 12.98 -20 12 52.3 071
2001-04-28 22:39:07 C 13 25 11.55 -20 12 56.2 071
2001-04-29 21:20:58 C 13 18 02.01 -20 31 32.9 118
2001-04-29 21:22:44 C 13 18 01.42 -20 31 33.8 118
2001-04-29 21:25:54 C 13 18 00.45 -20 31 36.3 118
2001-04-30 21:38:52 C 13 10 48.99 -20 48 56.5 952
2001-04-30 21:45:58 C 13 10 46.84 -20 49 01.2 952
2001-04-30 21:55:47 C 13 10 43.99 -20 49 06.5 952
2001-04-30 22:54:10 C 13 10 25.64 -20 49 47.1 071
2001-04-30 23:01:15 C 13 10 23.84 -20 49 53.2 071
2001-04-30 23:06:31 C 13 10 22.03 -20 49 56.2 071
2001-05-02 01:53:32 C 13 02 58.89 -21 05 53.5 860
2001-05-02 02:02:19 C 13 02 56.44 -21 06 00.5 860
2001-05-09 10:55:50 C 12 26 09.85 -22 10 23.5 18.6 c 608
2001-05-09 11:11:19 C 12 26 07.48 -22 10 26.6 19.0 c 608
2001-05-09 11:26:29 C 12 26 05.00 -22 10 29.2 19.9 c 608
2001-05-10 12:28:41 C 12 22 20.82 -22 15 40.7 360
2001-05-10 12:31:51 C 12 22 20.33 -22 15 41.4 360
2001-05-10 12:35:41 C 12 22 19.75 -22 15 42.1 360