474585 (2004 HC2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3113617419 ± 3.77e-08
Semi-major axis (a)1.3871870114 AU ± 9.79e-10
Inclination (i)55.02777387° ± 2.30e-05
Long. of Asc. Node (Ω)190.32574363° ± 4.13e-06
Arg. of Perihelion (ω)303.15283716° ± 9.25e-06
Mean Anomaly (M)109.53059956° ± 6.22e-06
Mean Motion (n)0.6032672590°/day ± 6.39e-10
Perihelion dist (q)0.95527005 AU ± 5.23e-08
Aphelion dist (Q)1.81910398 AU ± 5.23e-08
Orbital Period1.63381365 yr ± 1.73e-09
Physical Parameters
H (abs. magnitude)19.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.458″
Uncertainty0
Orbit TypeApollo
MOID0.068895 AU
Observations Used196
Oppositions7
Arc Total2004-2022
First Observation Used2004-04-16
Last Observation Used2022-05-19
Observations (227)
Date Type RA Dec Mag Band Observatory
2022-04-16 12:45:22 S 10 15 10.068 +46 33 36.65 L C51
2022-04-16 14:19:26 S 10 15 30.350 +46 39 02.63 L C51
2022-04-16 15:53:19 S 10 15 50.592 +46 44 25.98 L C51
2022-04-16 17:27:23 S 10 16 10.73 +46 49 47.8 L C51
2022-04-16 19:01:28 S 10 16 30.77 +46 55 03.4 L C51
2022-04-16 20:35:32 S 10 16 50.77 +47 00 19.1 L C51
2022-04-16 22:09:35 S 10 17 10.72 +47 05 31.9 L C51
2022-04-16 23:43:28 S 10 17 30.64 +47 10 40.4 L C51
2022-04-16 23:43:40 S 10 17 30.69 +47 10 40.5 L C51
2022-04-17 01:17:33 S 10 17 50.424 +47 15 48.10 L C51
2022-04-17 04:25:41 S 10 18 29.909 +47 25 52.72 L C51
2022-04-17 07:33:38 S 10 19 09.017 +47 35 48.16 L C51
2022-04-17 07:33:49 S 10 19 09.067 +47 35 48.16 L C51
2022-04-17 10:41:46 S 10 19 48.043 +47 45 33.01 L C51
2022-04-17 13:49:54 S 10 20 26.635 +47 55 09.98 L C51
2022-04-21 05:56:43 C 10 36 59.195 +51 29 27.31 V 703
2022-04-21 06:04:20 C 10 37 00.419 +51 29 42.22 V 703
2022-04-21 06:11:57 C 10 37 01.571 +51 29 56.22 V 703
2022-04-21 06:19:34 C 10 37 03.004 +51 30 10.22 V 703
2022-05-07 04:24:35 C 11 27 35.881 +57 08 49.81 V G96
2022-05-07 04:32:51 C 11 27 36.745 +57 08 52.44 V G96
2022-05-07 04:41:06 C 11 27 37.530 +57 08 54.56 V G96
2022-05-07 04:49:22 C 11 27 38.322 +57 08 56.98 V G96
2022-05-19 03:50:42 C 11 55 08.929 +57 37 14.74 V G96
2022-05-19 03:58:59 C 11 55 09.714 +57 37 14.48 V G96
2022-05-19 04:10:28 C 11 55 10.718 +57 37 13.94 V G96
2022-05-19 04:18:45 C 11 55 11.399 +57 37 13.30 V G96