2009 HC

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1256759477 ± 8.58e-08
Semi-major axis (a)1.0354251982 AU ± 3.98e-09
Inclination (i)3.73449877° ± 4.33e-06
Long. of Asc. Node (Ω)203.49298698° ± 1.18e-05
Arg. of Perihelion (ω)271.79962600° ± 1.63e-05
Mean Anomaly (M)316.56462045° ± 7.60e-06
Mean Motion (n)0.9354792988°/day ± 5.39e-09
Perihelion dist (q)0.90529716 AU ± 8.89e-08
Aphelion dist (Q)1.16555324 AU ± 8.89e-08
Orbital Period1.05360566 yr ± 6.07e-09
Physical Parameters
H (abs. magnitude)24.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.681″
Uncertainty0
Orbit TypeApollo
MOID0.006197 AU
Observations Used238
Oppositions1
Arc Total2009-2025
First Observation Used2009-04-17
Last Observation Used2025-10-31
Observations (240)
Date Type RA Dec Mag Band Observatory
2009-04-17 05:33:33 C 14 21 51.21 -05 01 02.7 o 691
2009-04-17 05:58:57 C 14 21 47.64 -04 58 56.9 o 691
2009-04-17 06:24:20 C 14 21 43.94 -04 56 50.9 o 691
2009-04-17 09:25:07 C 14 21 16.60 -04 41 55.0 o 291
2009-04-17 09:30:27 C 14 21 15.81 -04 41 28.7 o 291
2009-04-17 09:35:47 C 14 21 14.99 -04 41 02.2 o 291
2009-04-18 00:20:31 C 14 20 14.47 -03 32 33.0 o 461
2009-04-18 00:23:02 C 14 20 14.16 -03 32 21.6 o 461
2009-04-18 00:25:34 C 14 20 13.84 -03 32 10.0 o 461
2009-04-18 00:28:03 C 14 20 13.53 -03 31 58.8 o 461
2009-04-18 00:30:32 C 14 20 13.22 -03 31 47.5 o 461
2009-04-18 00:33:03 C 14 20 12.90 -03 31 36.2 o 461
2009-04-18 06:00:47 C 14 20 03.26 -03 06 17.2 o 291
2009-04-18 06:07:13 C 14 20 02.40 -03 05 49.0 o 291
2009-04-18 06:14:45 C 14 20 01.40 -03 05 16.3 o 291
2009-04-18 06:18:44 C 14 20 00.66 -03 04 58.1 c 651
2009-04-18 06:20:00 C 14 20 00.49 -03 04 52.6 c 651
2009-04-18 06:21:16 C 14 20 00.32 -03 04 47.1 c 651
2009-04-18 06:23:29 C 14 19 53.59 -03 05 10.3 r H55
2009-04-18 06:26:47 C 14 19 53.13 -03 04 55.9 r H55
2009-04-18 06:30:11 C 14 19 52.67 -03 04 40.4 r H55
2009-04-18 06:37:37 C 14 20 00.15 -03 03 45.8 c 670
2009-04-18 07:00:41 C 14 19 56.97 -03 02 06.1 c 670
2009-04-18 07:12:51 C 14 19 46.19 -03 01 17.8 r 850
2009-04-18 07:19:32 C 14 19 45.28 -03 00 48.5 r 850
2009-04-18 07:26:17 C 14 19 44.40 -03 00 19.2 r 850
2009-04-18 07:33:13 C 14 19 43.49 -02 59 48.8 r 850
2009-04-18 07:47:43 C 14 19 46.85 -02 58 36.8 o H06
2009-04-18 08:02:26 C 14 19 48.67 -02 57 38.9 c 670
2009-04-18 08:55:37 C 14 19 37.61 -02 53 42.9 c H06
2009-04-18 08:55:55 C 14 19 39.08 -02 53 38.1 o 291
2009-04-18 08:56:44 C 14 19 37.33 -02 53 37.6 c H06
2009-04-18 08:57:53 C 14 19 37.20 -02 53 32.5 c H06
2009-04-18 08:59:02 C 14 19 37.00 -02 53 28.2 c H06
2009-04-18 09:01:58 C 14 19 38.22 -02 53 11.7 o 291
2009-04-18 09:04:41 C 14 19 36.30 -02 53 03.3 c H06
2009-04-18 09:07:37 C 14 19 37.53 -02 52 48.3 o 291
2009-04-19 09:09:08 C 14 18 06.10 -01 15 53.8 o 291
2009-04-19 09:14:34 C 14 18 05.42 -01 15 33.3 o 291
2009-04-19 09:19:55 C 14 18 04.76 -01 15 13.2 o 291
2009-04-20 08:44:09 C 14 16 48.31 +00 07 36.3 o 673
2009-04-20 08:54:49 C 14 16 47.07 +00 08 11.8 o 673
2009-04-20 09:00:10 C 14 16 46.44 +00 08 29.8 o 673
2009-04-20 09:08:20 C 14 16 45.52 +00 08 56.8 o 673
2009-04-20 09:47:45 C 14 16 39.49 +00 11 16.9 o 291
2009-04-20 10:00:46 C 14 16 38.08 +00 11 59.9 o 291
2009-04-20 10:06:04 C 14 16 37.50 +00 12 17.5 o 291
2009-04-21 08:20:32 C 14 15 34.47 +01 21 44.0 o 291
2009-04-21 08:29:09 C 14 15 33.54 +01 22 09.0 o 291
2009-04-21 08:37:03 C 14 15 32.69 +01 22 32.7 o 291