516457 (2005 HM3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3100975440 ± 6.15e-08
Semi-major axis (a)1.6783775827 AU ± 2.46e-09
Inclination (i)28.32288669° ± 1.35e-05
Long. of Asc. Node (Ω)209.19207572° ± 4.62e-06
Arg. of Perihelion (ω)4.31882902° ± 2.27e-05
Mean Anomaly (M)168.50081896° ± 1.42e-05
Mean Motion (n)0.4532917040°/day ± 9.97e-10
Perihelion dist (q)1.15791682 AU ± 1.03e-07
Aphelion dist (Q)2.19883835 AU ± 1.03e-07
Orbital Period2.17437530 yr ± 4.78e-09
Physical Parameters
H (abs. magnitude)19.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.351″
Uncertainty0
Orbit TypeAmor
MOID0.153607 AU
Observations Used146
Oppositions7
Arc Total2005-2018
First Observation Used2005-04-20
Last Observation Used2018-07-04
Observations (152)
Date Type RA Dec Mag Band Observatory
2005-04-20 08:55:59 C 15 34 15.38 -03 43 26.1 r 703
2005-04-20 09:08:22 C 15 34 16.36 -03 41 55.1 r 703
2005-04-20 09:20:44 C 15 34 17.50 -03 40 24.6 r 703
2005-04-20 09:33:08 C 15 34 18.55 -03 38 53.4 r 703
2005-04-20 10:29:41 C 15 34 23.41 -03 31 57.0 r 703
2005-04-20 10:40:15 C 15 34 24.31 -03 30 39.3 r 703
2005-04-20 10:50:45 C 15 34 25.21 -03 29 22.3 r 703
2005-04-20 11:01:12 C 15 34 26.14 -03 28 05.4 r 703
2005-04-20 11:50:48 C 15 34 30.46 -03 22 00.8 r 703
2005-04-20 11:51:19 C 15 34 30.50 -03 21 56.8 r 703
2005-04-20 11:51:51 C 15 34 30.61 -03 21 53.5 r 703
2005-04-20 11:52:22 C 15 34 30.61 -03 21 48.4 r 703
2005-04-20 11:52:53 C 15 34 30.64 -03 21 45.1 r 703
2005-04-20 11:53:24 C 15 34 30.64 -03 21 40.8 r 703
2005-04-20 11:53:55 C 15 34 30.79 -03 21 37.4 r 703
2005-04-20 11:54:27 C 15 34 30.79 -03 21 33.4 r 703
2005-04-20 12:03:10 C 15 34 36.12 -03 19 35.0 r 413
2005-04-20 12:08:40 C 15 34 36.59 -03 18 54.5 r 413
2005-04-20 13:32:45 C 15 34 41.20 -03 09 23.2 o F65
2005-04-20 13:34:01 C 15 34 41.30 -03 09 14.0 o F65
2005-04-20 13:35:21 C 15 34 41.40 -03 09 04.1 o F65
2005-04-21 02:40:31 C 15 36 00.05 -01 32 40.8 r I77
2005-04-21 02:41:28 C 15 36 00.14 -01 32 33.7 r I77
2005-04-21 02:42:55 C 15 36 00.27 -01 32 23.4 r I77
2005-04-21 05:01:05 C 15 36 14.49 -01 16 19.9 c 854
2005-04-21 05:03:29 C 15 36 14.66 -01 16 02.9 c 854
2005-04-21 05:07:02 C 15 36 15.01 -01 15 37.3 c 854
2005-04-21 05:58:39 C 15 36 19.27 -01 09 22.9 o H06
2005-04-21 06:03:59 C 15 36 19.73 -01 08 44.2 o H06
2005-04-21 06:09:08 C 15 36 20.19 -01 08 06.1 o H06
2005-04-21 06:44:32 C 15 36 20.75 -01 02 50.7 c 844
2005-04-21 06:51:39 C 15 36 21.34 -01 01 58.6 c 844
2005-04-21 06:56:56 C 15 36 24.25 -01 02 18.3 r 448
2005-04-21 06:58:46 C 15 36 21.96 -01 01 07.1 c 844
2005-04-21 07:01:11 C 15 36 24.62 -01 01 47.7 r 448
2005-04-21 07:05:53 C 15 36 22.58 -01 00 15.5 c 844
2005-04-21 07:06:30 C 15 36 25.06 -01 01 08.5 r 448
2005-04-21 07:12:59 C 15 36 23.14 -00 59 23.6 c 844
2005-04-21 07:13:53 C 15 36 25.70 -01 00 15.1 r 448
2005-04-21 07:20:01 C 15 36 26.38 -00 59 30.1 r 703
2005-04-21 07:31:53 C 15 36 27.36 -00 58 04.0 r 703
2005-04-21 07:43:51 C 15 36 28.33 -00 56 36.9 r 703
2005-04-21 07:55:39 C 15 36 29.30 -00 55 11.0 r 703
2005-04-21 11:32:22 C 15 36 49.40 -00 28 48.3 F65
2005-04-21 11:33:38 C 15 36 49.51 -00 28 38.8 F65
2005-04-21 11:34:48 C 15 36 49.62 -00 28 30.6 F65
2005-04-21 11:36:09 C 15 36 49.77 -00 28 19.8 F65
2005-04-21 11:45:04 C 15 36 48.24 -00 27 25.4 r 703
2005-04-21 11:45:50 C 15 36 48.31 -00 27 19.6 r 703
2005-04-21 11:46:35 C 15 36 48.34 -00 27 14.2 r 703