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
2009-04-29 06:39:01 C 14 09 00.52 +07 22 54.8 o 291
2009-04-30 04:41:56 C 14 08 36.38 +07 46 32.7 o 291
2009-04-30 04:47:34 C 14 08 36.07 +07 46 38.6 o 291
2009-04-30 04:52:58 C 14 08 35.79 +07 46 44.2 o 291
2009-05-01 03:39:27 C 14 08 11.76 +08 08 24.3 o 291
2009-05-01 03:45:01 C 14 08 11.53 +08 08 29.7 o 291
2009-05-01 03:50:28 C 14 08 11.29 +08 08 34.9 o 291
2009-05-03 06:23:46 C 14 07 19.62 +08 48 16.3 o 291
2009-05-03 06:29:25 C 14 07 19.35 +08 48 20.1 o 291
2009-05-03 06:35:01 C 14 07 19.08 +08 48 23.7 o 291
2009-05-05 05:00:23 C 14 06 51.64 +09 15 48.4 o 291
2009-05-05 05:05:52 C 14 06 51.42 +09 15 51.3 o 291
2009-05-05 05:11:18 C 14 06 51.17 +09 15 55.3 o 291
2009-05-10 03:35:26 C 14 06 18.71 +09 55 54.1 o H55
2009-05-10 03:59:27 C 14 06 18.13 +09 55 58.6 o H55
2009-05-10 04:06:37 C 14 06 17.97 +09 56 00.0 o H55
2009-05-12 03:19:10 C 14 06 22.22 +10 02 32.6 o H55
2009-05-12 03:30:09 C 14 06 22.00 +10 02 33.8 o H55
2009-05-12 03:41:12 C 14 06 21.77 +10 02 35.1 o H55
2009-05-14 06:43:00 C 14 06 32.47 +10 04 56.7 o 291
2009-05-14 06:55:49 C 14 06 32.24 +10 04 56.6 o 291
2009-05-14 07:08:30 C 14 06 32.02 +10 04 56.3 o 291
2009-05-15 04:49:18 C 14 06 43.61 +10 04 27.6 o 291
2009-05-15 05:04:32 C 14 06 43.37 +10 04 27.4 o 291
2009-05-15 05:19:39 C 14 06 43.13 +10 04 26.8 o 291
2009-05-15 06:34:26 C 14 06 41.53 +10 04 20.7 o H01
2009-05-15 06:38:32 C 14 06 41.47 +10 04 20.4 o H01
2009-05-15 06:48:44 C 14 06 41.32 +10 04 20.0 o H01
2009-05-15 07:01:12 C 14 06 41.14 +10 04 19.3 o H01
2009-05-16 08:56:03 C 14 06 51.57 +10 02 39.3 o 291
2009-05-16 09:14:27 C 14 06 51.47 +10 02 37.2 o 291
2009-05-16 09:29:14 C 14 06 51.36 +10 02 34.8 o 291
2009-05-17 07:51:05 C 14 07 05.69 +10 00 22.7 o 291
2009-05-17 08:05:58 C 14 07 05.56 +10 00 20.4 o 291
2009-05-17 08:20:55 C 14 07 05.43 +10 00 18.0 o 291
2009-05-19 03:06:14 C 14 07 38.90 +09 53 50.1 o H55
2009-05-19 03:15:27 C 14 07 38.84 +09 53 48.6 o H55
2009-05-19 03:30:54 C 14 07 38.74 +09 53 46.0 o H55
2009-05-21 03:53:03 C 14 08 18.91 +09 43 42.0 o H55
2009-05-21 04:15:12 C 14 08 18.85 +09 43 36.7 o H55
2009-05-21 04:34:20 C 14 08 18.80 +09 43 31.9 o H55
2009-05-23 03:04:14 C 14 09 07.40 +09 31 11.7 o H55
2009-05-23 03:14:42 C 14 09 07.40 +09 31 08.3 o H55
2009-05-23 03:37:28 C 14 09 07.46 +09 31 02.1 o H55
2009-05-23 03:55:02 C 14 09 07.42 +09 30 56.8 o H55
2009-05-28 08:25:22 C 14 11 50.25 +08 47 06.0 o H01
2009-05-28 08:28:41 C 14 11 50.30 +08 47 04.7 o H01
2009-05-28 08:54:02 C 14 11 50.73 +08 46 53.5 o H01
2009-06-01 02:58:38 C 14 14 29.53 +08 07 14.4 o H55
2009-06-01 03:14:04 C 14 14 29.84 +08 07 08.1 o H55