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
2012-08-08 03:20:44 C 16 13 26.94 +11 55 48.7 u H21
2012-08-08 03:31:02 C 16 13 29.36 +11 55 42.3 u H21
2012-08-08 03:49:41 C 16 13 33.75 +11 55 32.4 u H21
2012-10-09 00:41:00 C 21 14 24.05 -04 27 48.3 u H21
2012-10-09 00:59:27 C 21 14 26.27 -04 27 52.3 u H21
2012-10-09 01:19:08 C 21 14 28.69 -04 27 55.7 u H21
2015-04-09 07:42:47 C 13 46 21.91 -15 01 22.1 o 926
2015-04-09 08:02:49 C 13 46 21.41 -15 01 11.7 o 926
2015-04-09 08:23:00 C 13 46 20.94 -15 00 59.6 o 926
2015-04-10 07:32:08 C 13 45 54.01 -14 47 20.7 o 926
2015-04-10 07:52:51 C 13 45 53.48 -14 47 08.1 o 926
2015-04-10 08:22:17 C 13 45 52.76 -14 46 50.2 o 926
2015-04-18 07:53:23 C 13 41 08.08 -12 29 09.0 L W84
2015-04-18 07:58:00 C 13 41 07.92 -12 29 05.1 L W84
2015-04-18 08:02:42 C 13 41 07.77 -12 29 01.1 L W84
2015-04-18 08:07:22 C 13 41 07.62 -12 28 57.3 L W84
2015-04-18 08:12:00 C 13 41 07.48 -12 28 53.3 L W84
2015-04-19 07:35:42 C 13 40 26.86 -12 09 05.6 L W84
2015-04-19 07:40:21 C 13 40 26.70 -12 09 01.5 L W84
2015-04-19 07:45:02 C 13 40 26.55 -12 08 57.4 L W84
2015-04-19 07:49:41 C 13 40 26.40 -12 08 53.4 L W84
2015-04-19 07:54:21 C 13 40 26.24 -12 08 49.3 L W84
2015-04-21 07:37:11 C 13 39 00.22 -11 26 24.1 L W84
2015-04-21 07:41:51 C 13 39 00.06 -11 26 19.7 L W84
2015-04-21 07:46:32 C 13 38 59.90 -11 26 15.5 L W84
2015-04-21 07:51:12 C 13 38 59.74 -11 26 11.1 L W84
2015-04-21 07:55:51 C 13 38 59.59 -11 26 06.8 L W84
2015-04-22 07:36:21 C 13 38 15.71 -11 04 03.8 L W84
2015-04-22 07:41:02 C 13 38 15.56 -11 03 59.3 L W84
2015-04-22 07:45:40 C 13 38 15.39 -11 03 54.9 L W84
2015-04-22 07:50:22 C 13 38 15.23 -11 03 50.3 L W84
2015-04-22 07:55:01 C 13 38 15.07 -11 03 45.9 L W84
2015-04-23 10:40:36 C 13 37 25.434 -10 38 23.57 L F52
2015-04-23 11:01:30 C 13 37 24.655 -10 38 02.96 L F52
2015-04-23 11:22:25 C 13 37 23.868 -10 37 42.50 L F52
2015-05-06 09:07:17 C 13 27 44.728 -04 46 11.81 L F51
2015-05-06 09:23:55 C 13 27 44.152 -04 45 50.61 L F51
2015-05-06 09:40:37 C 13 27 43.570 -04 45 29.52 L F51
2015-05-12 13:54:14 C 13 24 07.01 -01 31 06.1 q D29
2015-05-12 14:14:33 C 13 24 06.45 -01 30 38.6 q D29
2015-05-20 09:36:41 C 13 21 41.963 +02 45 24.57 L F51
2015-05-20 09:53:18 C 13 21 41.758 +02 45 47.07 L F51
2015-05-20 10:10:03 C 13 21 41.575 +02 46 10.31 L F51
2015-06-05 07:56:17 C 13 28 30.856 +11 13 16.09 L F51
2015-06-05 08:15:10 C 13 28 31.461 +11 13 39.44 L F51
2015-06-05 08:34:02 C 13 28 32.086 +11 14 03.16 L F51
2015-06-05 08:52:52 C 13 28 32.718 +11 14 26.74 L F51
2015-07-23 02:50:11 C 16 10 14.46 +28 18 00.1 u H21
2015-07-23 02:58:41 C 16 10 16.54 +28 18 01.0 u H21
2015-07-23 03:07:20 C 16 10 18.63 +28 18 02.5 u H21