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
2005-05-25 21:52:07 C 16 14 54.99 +46 40 46.0 o 198
2005-06-12 07:54:39 C 16 21 39.41 +48 46 23.0 o 696
2005-06-12 08:05:23 C 16 21 39.58 +48 46 22.3 o 696
2005-07-18 23:39:40 C 16 48 34.53 +41 07 12.7 r J95
2005-07-19 00:28:28 C 16 48 36.67 +41 06 31.3 r J95
2005-08-29 04:31:18 C 17 49 11.44 +24 58 20.2 d 291
2005-08-29 04:37:48 C 17 49 11.87 +24 58 14.5 d 291
2005-08-29 04:44:18 C 17 49 12.40 +24 58 07.9 d 291
2008-11-20 11:03:37 C 04 29 55.200 -08 07 40.31 U T12
2008-11-20 11:07:29 C 04 29 54.964 -08 07 43.46 U T12
2008-11-20 11:11:24 C 04 29 54.738 -08 07 46.53 U T12
2010-10-22 11:29:06 C 03 07 32.883 +08 10 56.11 U T12
2012-09-16 08:07:40 C 01 51 27.81 +23 38 13.5 u H21
2012-09-16 08:50:04 C 01 51 26.39 +23 37 51.5 u H21
2012-09-16 09:25:50 C 01 51 25.14 +23 37 32.4 u H21
2012-09-16 09:34:23 C 01 51 24.88 +23 37 27.5 u H21
2012-09-17 07:45:27 C 01 50 41.24 +23 25 33.4 u H21
2012-09-17 08:27:53 C 01 50 39.69 +23 25 09.6 u H21
2012-09-19 07:30:53 C 01 49 00.78 +22 58 42.0 u H21
2012-09-19 08:02:11 C 01 48 59.57 +22 58 23.5 u H21
2012-09-19 08:34:22 C 01 48 58.38 +22 58 05.0 u H21
2016-05-18 10:40:48 C 21 12 30.55 +26 04 20.4 o 695
2016-05-18 10:51:54 C 21 12 31.19 +26 04 34.4 o 695
2016-05-18 11:02:58 C 21 12 31.83 +26 04 48.4 o 695
2018-04-13 06:11:46 C 09 25 39.631 -22 01 36.51 U F51
2018-04-13 06:45:29 C 09 25 43.706 -21 59 34.09 U F51
2018-04-13 07:02:20 C 09 25 45.748 -21 58 32.74 U F51
2018-04-17 20:26:42 C 09 40 51.30 -15 00 48.9 U 204
2018-04-17 20:41:50 C 09 40 53.39 -14 59 48.6 U 204
2018-04-23 03:08:46 C 10 00 18.45 -06 22 01.8 U G96
2018-04-23 03:18:19 C 10 00 19.93 -06 21 21.9 U G96
2018-04-23 03:27:53 C 10 00 21.38 -06 20 42.0 U G96
2018-04-23 03:37:26 C 10 00 22.81 -06 20 02.0 U G96
2018-05-07 05:30:05 C 10 59 02.72 +15 18 55.9 U 703
2018-05-07 05:46:25 C 10 59 05.53 +15 19 47.4 U 703
2018-05-07 05:54:34 C 10 59 07.02 +15 20 14.1 U 703
2018-05-09 05:25:56 C 11 07 45.70 +17 48 51.4 U G96
2018-05-09 05:33:33 C 11 07 47.04 +17 49 14.2 U G96
2018-05-09 05:41:09 C 11 07 48.41 +17 49 36.9 U G96
2018-05-09 05:51:57 C 11 07 50.27 +17 50 09.0 U G96
2018-05-10 05:41:57 C 11 12 10.85 +19 00 30.9 U 703
2018-05-10 05:50:09 C 11 12 12.31 +19 00 53.8 U 703
2018-05-10 05:58:20 C 11 12 13.68 +19 01 18.1 U 703
2018-05-10 06:06:32 C 11 12 15.12 +19 01 40.8 U 703
2018-06-06 04:18:03 C 13 02 46.21 +35 33 15.0 U G96
2018-06-06 04:25:33 C 13 02 47.27 +35 33 18.6 U G96
2018-06-06 04:33:04 C 13 02 48.39 +35 33 22.1 U G96
2018-06-06 04:40:33 C 13 02 49.46 +35 33 26.0 U G96
2018-07-04 05:05:04 C 14 32 29.25 +35 26 29.8 U G96
2018-07-04 05:13:21 C 14 32 30.17 +35 26 27.1 U G96