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
2012-04-16 09:24:56 C 12 49 49.742 -09 31 10.14 L F51
2012-04-16 09:43:55 C 12 49 48.741 -09 30 53.86 L F51
2012-04-16 10:02:58 C 12 49 47.739 -09 30 37.70 L F51
2012-04-16 10:22:03 C 12 49 46.737 -09 30 21.32 L F51
2012-04-17 02:06:42 C 12 49 02.32 -09 16 35.9 o 807
2012-04-17 02:30:42 C 12 49 01.08 -09 16 15.3 o 807
2012-04-17 09:13:18 C 12 48 41.54 -09 10 42.9 t F65
2012-04-17 09:16:28 C 12 48 41.37 -09 10 40.2 t F65
2012-04-17 09:19:43 C 12 48 41.20 -09 10 37.4 t F65
2012-04-18 04:14:44 C 12 47 47.43 -08 54 07.1 o H01
2012-04-18 04:23:04 C 12 47 47.00 -08 53 59.8 o H01
2012-04-18 04:44:31 C 12 47 45.88 -08 53 41.0 o H01
2012-04-18 05:04:05 C 12 47 44.86 -08 53 23.8 o H01
2012-04-18 05:16:01 C 12 47 43.88 -08 53 14.9 r H21
2012-04-18 05:40:10 C 12 47 42.64 -08 52 53.0 r H21
2012-04-18 06:03:12 C 12 47 41.44 -08 52 33.0 r H21
2012-04-19 02:00:24 C 12 46 45.08 -08 34 26.3 o 807
2012-04-19 02:09:23 C 12 46 44.60 -08 34 18.4 o 807
2012-04-19 02:18:21 C 12 46 44.13 -08 34 10.3 o 807
2012-04-19 02:27:17 C 12 46 43.66 -08 34 02.1 o 807
2012-04-20 00:11:11 C 12 45 42.13 -08 14 21.8 o 807
2012-04-20 00:23:03 C 12 45 41.55 -08 14 11.2 o 807
2012-04-20 00:34:55 C 12 45 40.96 -08 14 00.5 o 807
2012-04-21 07:47:37 C 12 44 11.21 -07 45 35.4 o 291
2012-04-21 07:51:54 C 12 44 10.90 -07 45 31.1 o 291
2012-04-21 07:54:21 C 12 44 10.80 -07 45 29.5 o 291
2012-04-22 05:59:54 C 12 43 09.33 -07 24 46.5 r G96
2012-04-22 06:10:16 C 12 43 08.79 -07 24 37.1 r G96
2012-04-22 06:20:41 C 12 43 08.25 -07 24 27.3 r G96
2012-04-22 06:31:03 C 12 43 07.71 -07 24 17.2 r G96
2012-04-23 04:45:06 C 12 42 06.02 -07 03 13.3 u H21
2012-04-23 04:55:08 C 12 42 05.51 -07 03 04.4 u H21
2012-04-23 05:06:38 C 12 42 04.93 -07 02 53.2 u H21
2012-04-23 05:20:21 C 12 42 04.25 -07 02 39.5 u H21
2012-04-26 09:33:31 C 12 38 39.567 -05 48 33.86 L F51
2012-04-26 09:48:45 C 12 38 38.816 -05 48 18.80 L F51
2012-04-30 08:14:10 C 12 34 45.82 -04 14 10.2 o 291
2012-04-30 08:16:26 C 12 34 45.78 -04 14 07.1 o 291
2012-04-30 08:18:41 C 12 34 45.67 -04 14 05.2 o 291
2012-05-01 07:28:25 C 12 33 53.32 -03 50 46.0 o 291
2012-05-01 07:31:28 C 12 33 53.20 -03 50 42.0 o 291
2012-05-01 07:34:29 C 12 33 53.07 -03 50 39.3 o 291
2012-05-12 04:05:03 C 12 26 47.39 +00 29 01.2 o 291
2012-05-12 04:08:47 C 12 26 47.30 +00 29 05.1 o 291
2012-05-12 04:12:33 C 12 26 47.23 +00 29 07.9 o 291
2012-05-28 05:42:31 C 12 28 24.42 +06 01 51.6 o 291
2012-05-28 05:48:14 C 12 28 24.55 +06 01 55.7 o 291
2012-06-17 05:40:32 C 12 54 01.52 +10 47 16.9 o 291
2012-06-17 05:44:40 C 12 54 01.82 +10 47 18.8 o 291
2012-06-17 05:48:46 C 12 54 02.07 +10 47 20.0 o 291