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
2001-07-03 09:41:41 C 12 07 51.24 -26 06 34.2 e 413
2001-07-03 09:45:00 C 12 07 51.43 -26 06 34.8 e 413
2001-07-03 09:48:17 C 12 07 51.58 -26 06 35.9 e 413
2001-07-04 08:42:46 C 12 08 55.64 -26 13 24.4 e 413
2001-07-04 08:46:34 C 12 08 55.82 -26 13 25.9 e 413
2002-04-23 17:25:16 C 20 17 04.44 -44 22 32.1 e 413
2002-04-23 17:27:36 C 20 17 04.74 -44 22 34.9 e 413
2002-04-23 17:29:55 C 20 17 05.05 -44 22 37.5 e 413
2002-04-23 17:32:12 C 20 17 05.34 -44 22 40.0 e 413
2002-05-01 19:14:56 C 20 45 39.87 -48 08 47.0 e 413
2002-05-01 19:17:15 C 20 45 40.29 -48 08 50.4 e 413
2005-05-10 03:11:03 C 09 30 27.74 +23 19 50.6 r 448
2005-05-10 03:25:08 C 09 30 30.38 +23 19 10.7 r 448
2005-05-10 03:38:42 C 09 30 32.91 +23 18 32.7 r 448
2010-03-27 06:47:32 S 18 23 50.095 +05 40 22.08 L C51
2010-03-27 08:22:42 S 18 23 31.238 +05 37 56.17 L C51
2010-03-27 11:33:13 S 18 22 53.342 +05 33 03.71 L C51
2010-04-04 11:29:17 C 17 35 57.67 -00 27 27.1 u 448
2010-04-04 11:33:08 C 17 35 56.51 -00 27 35.7 u 448
2010-04-04 11:37:59 C 17 35 55.01 -00 27 46.9 u 448
2010-04-06 03:26:40 C 17 23 32.46 -02 00 29.1 v 204
2010-04-06 03:29:35 C 17 23 31.49 -02 00 36.3 v 204
2010-04-06 03:32:43 C 17 23 30.46 -02 00 43.7 v 204
2010-04-06 03:36:11 C 17 23 29.30 -02 00 52.0 v 204
2010-04-06 03:38:57 C 17 23 28.37 -02 00 58.8 v 204
2010-04-06 09:23:11 C 17 21 36.55 -02 14 46.1 o H21
2010-04-06 09:27:45 C 17 21 35.00 -02 14 57.4 o H21
2010-04-06 09:32:31 C 17 21 33.39 -02 15 09.0 o H21
2010-04-06 09:38:52 C 17 21 31.23 -02 15 24.3 o H21
2010-04-06 09:43:56 C 17 21 29.52 -02 15 36.5 o H21
2010-04-10 02:35:57 C 16 49 36.69 -06 04 56.4 r 941
2010-04-10 02:42:29 C 16 49 34.07 -06 05 14.3 r 941
2010-04-10 02:51:01 C 16 49 30.65 -06 05 37.5 r 941
2010-04-10 02:53:12 C 16 49 29.77 -06 05 43.4 r 941
2010-04-10 02:59:10 C 16 49 27.39 -06 05 59.5 r 941
2010-04-13 07:33:57 C 16 17 47.64 -09 38 02.7 u H45
2010-04-13 07:35:35 C 16 17 46.91 -09 38 07.2 u H45
2010-04-13 07:36:33 C 16 17 46.48 -09 38 09.8 u H45
2010-04-13 07:37:50 C 16 17 45.91 -09 38 13.4 u H45
2010-04-13 07:38:45 C 16 17 45.51 -09 38 15.9 u H45
2010-04-15 08:33:38 C 15 55 53.03 -11 53 38.7 16.6 c 704
2010-04-15 08:50:11 C 15 55 45.22 -11 54 23.3 16.7 c 704
2010-04-15 09:06:26 C 15 55 37.59 -11 55 07.7 16.8 c 704
2010-04-15 09:22:41 C 15 55 29.96 -11 55 52.3 17.0 c 704
2010-04-15 09:38:57 C 15 55 22.31 -11 56 36.6 17.0 c 704
2010-04-20 09:25:45 C 14 59 33.59 -16 53 17.1 o 691
2010-04-20 09:47:32 C 14 59 23.21 -16 54 03.5 o 691
2010-04-20 10:09:18 C 14 59 12.86 -16 54 50.0 o 691
2010-04-22 04:33:16 C 14 39 57.36 -18 19 42.6 16.4 c 704
2010-04-22 04:48:44 C 14 39 50.29 -18 20 11.9 16.7 c 704