516976 (2012 HM1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4799185241 ± 8.21e-09
Semi-major axis (a)2.0707113977 AU ± 1.77e-09
Inclination (i)7.55304987° ± 1.80e-06
Long. of Asc. Node (Ω)211.69812878° ± 9.45e-06
Arg. of Perihelion (ω)72.22716046° ± 1.07e-05
Mean Anomaly (M)172.16834710° ± 1.87e-06
Mean Motion (n)0.3307751806°/day ± 4.25e-10
Perihelion dist (q)1.07693864 AU ± 1.70e-08
Aphelion dist (Q)3.06448416 AU ± 1.72e-08
Orbital Period2.97974679 yr ± 3.83e-09
Physical Parameters
H (abs. magnitude)21.35
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.233″
Uncertainty0
Orbit TypeAmor
MOID0.136540 AU
Observations Used328
Oppositions8
Arc Total2012-2024
First Observation Used2012-04-16
Last Observation Used2024-10-22
Observations (347)
Date Type RA Dec Mag Band Observatory
2015-07-23 03:15:42 C 16 10 20.65 +28 18 03.3 u H21
2015-07-23 03:45:26 C 16 10 27.89 +28 18 07.1 u H21
2015-07-23 04:10:02 C 16 10 33.88 +28 18 09.9 u H21
2015-07-23 04:36:43 C 16 10 40.42 +28 18 13.1 u H21
2015-07-24 02:37:50 C 16 16 19.85 +28 21 00.0 u H21
2015-07-24 02:47:59 C 16 16 22.34 +28 21 00.8 u H21
2015-07-24 02:59:35 C 16 16 25.22 +28 21 01.3 u H21
2015-07-25 03:13:02 C 16 22 42.47 +28 22 32.2 u H21
2015-07-25 03:21:54 C 16 22 44.68 +28 22 32.2 u H21
2015-07-25 03:30:37 C 16 22 46.86 +28 22 32.1 u H21
2015-07-25 03:39:45 C 16 22 49.15 +28 22 32.5 u H21
2015-07-26 08:19:18 C 16 30 22.171 +28 22 30.21 L F51
2015-07-26 08:59:43 C 16 30 32.366 +28 22 26.37 L F51
2015-07-26 09:19:58 C 16 30 37.493 +28 22 24.13 L F51
2015-07-27 07:56:26 C 16 36 40.849 +28 20 35.01 L F51
2015-07-27 08:37:18 C 16 36 51.263 +28 20 28.33 L F51
2015-07-27 08:57:31 C 16 36 56.499 +28 20 25.16 L F51
2015-07-27 22:49:39 C 16 40 40.63 +28 18 08.7 t 204
2015-07-27 23:11:35 C 16 40 46.37 +28 18 04.4 t 204
2015-08-04 03:16:58 C 17 28 16.61 +27 07 05.8 u H21
2015-08-04 03:25:40 C 17 28 18.92 +27 06 59.9 u H21
2015-08-04 03:34:22 C 17 28 21.25 +27 06 54.4 u H21
2015-08-04 03:44:05 C 17 28 23.85 +27 06 47.8 u H21
2015-08-11 03:29:04 C 18 14 16.72 +24 34 34.4 u H21
2015-08-11 03:36:11 C 18 14 18.54 +24 34 26.3 u H21
2015-08-11 03:42:43 C 18 14 20.22 +24 34 19.2 u H21
2015-09-08 02:29:51 C 20 33 38.85 +08 59 00.3 u H21
2015-09-08 02:36:12 C 20 33 39.75 +08 58 52.1 u H21
2015-09-08 02:44:01 C 20 33 40.88 +08 58 42.5 u H21
2015-09-10 13:00:57 C 20 42 08.49 +07 47 15.0 q D29
2015-09-10 13:21:16 C 20 42 11.27 +07 46 51.0 q D29
2015-09-12 03:04:04 C 20 47 25.50 +07 02 44.2 u H21
2015-09-12 03:08:16 C 20 47 26.06 +07 02 39.6 u H21
2015-09-12 03:11:32 C 20 47 26.47 +07 02 35.7 u H21
2015-09-12 03:14:26 C 20 47 26.88 +07 02 32.0 u H21
2015-09-12 05:59:47 C 20 47 50.193 +06 59 31.29 L F51
2015-09-12 06:17:10 C 20 47 52.444 +06 59 11.53 L F51
2015-09-12 06:34:37 C 20 47 54.700 +06 58 51.67 L F51
2015-10-08 02:11:02 C 21 55 29.47 -00 55 07.3 u H21
2015-10-08 02:30:34 C 21 55 31.16 -00 55 15.9 u H21
2015-10-08 02:49:33 C 21 55 32.79 -00 55 23.8 u H21
2018-04-13 11:38:43 C 14 54 08.029 -17 30 51.61 U F51
2018-04-13 11:55:12 C 14 54 08.460 -17 30 42.36 U F51
2018-04-13 12:11:39 C 14 54 08.872 -17 30 33.43 U F51
2018-04-13 12:28:05 C 14 54 09.298 -17 30 24.44 U F51
2018-04-19 09:48:13 C 14 58 25.03 -15 59 04.5 U G96
2018-04-19 09:55:36 C 14 58 25.19 -15 58 58.1 U G96
2018-04-19 10:02:59 C 14 58 25.42 -15 58 52.9 U G96
2018-04-19 10:10:22 C 14 58 25.51 -15 58 47.0 U G96
2018-05-09 16:21:48 C 15 13 31.35 -06 16 19.3 q D29