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
2018-09-10 05:14:28 C 22 30 13.68 +15 10 27.5 V G96
2018-10-04 07:06:38 C 22 48 56.926 +04 27 44.76 U F52
2018-10-04 07:26:46 C 22 48 57.542 +04 27 29.43 U F52
2018-10-04 08:07:02 C 22 48 58.804 +04 26 59.04 U F52
2021-04-07 12:56:51 C 15 54 31.681 -20 32 28.30 U F51
2021-04-07 13:28:56 C 15 54 34.606 -20 32 17.68 U F51
2021-04-07 13:44:59 C 15 54 36.066 -20 32 12.37 U F51
2021-04-13 14:23:24 C 16 09 06.344 -19 31 46.58 U F51
2021-04-13 14:42:30 C 16 09 08.221 -19 31 36.62 U F51
2021-04-13 14:52:04 C 16 09 09.188 -19 31 31.67 U F51
2021-04-22 13:35:18 C 16 33 15.226 -17 05 58.05 U F51
2021-04-22 13:52:07 C 16 33 17.137 -17 05 43.36 U F51
2021-06-14 09:27:03 C 20 58 38.72 +27 59 55.0 V G96
2021-06-14 09:38:03 C 20 58 41.43 +28 00 14.8 V G96
2021-06-14 09:44:58 C 20 58 43.14 +28 00 27.2 V G96
2021-06-14 09:51:54 C 20 58 44.82 +28 00 39.6 V G96
2021-07-16 11:59:40 C 23 24 04.562 +35 55 17.83 U F51
2021-07-16 12:14:03 C 23 24 06.038 +35 55 16.72 U F51
2021-07-16 12:28:26 C 23 24 07.517 +35 55 15.49 U F51
2021-09-05 08:12:33 C 23 58 47.784 +21 19 59.21 U F52
2021-09-05 08:46:00 C 23 58 46.718 +21 19 19.73 U F52
2021-09-05 09:02:47 C 23 58 46.179 +21 18 59.90 U F52
2021-09-07 07:27:51 C 23 57 29.98 +20 22 40.9 V G96
2021-09-07 07:35:58 C 23 57 29.71 +20 22 31.0 V G96
2021-09-07 07:44:05 C 23 57 29.42 +20 22 21.0 V G96
2021-09-07 07:52:12 C 23 57 29.15 +20 22 11.4 V G96
2021-09-11 07:59:46 C 23 54 48.634 +18 24 37.33 U F51
2021-09-11 08:35:10 C 23 54 47.461 +18 23 54.79 U F51
2021-09-11 08:51:20 C 23 54 46.912 +18 23 35.22 U F51
2021-09-11 17:03:49 C 23 54 32.09 +18 13 29.0 V D29
2021-09-11 17:24:12 C 23 54 31.40 +18 13 03.1 V D29
2021-09-11 17:44:33 C 23 54 30.68 +18 12 38.1 V D29
2021-09-15 17:16:39 C 23 51 52.53 +16 16 27.0 V D29
2021-09-15 17:35:45 C 23 51 51.92 +16 16 02.8 V D29
2021-09-15 17:54:50 C 23 51 51.22 +16 15 41.4 V D29
2021-09-16 06:30:47 C 23 51 32.08 +16 00 30.3 V G96
2021-09-16 06:45:40 C 23 51 31.42 +16 00 14.3 V G96
2021-09-16 06:59:48 C 23 51 30.97 +15 59 57.3 V G96
2021-09-29 06:38:11 C 23 44 45.711 +10 14 12.64 U F52
2021-09-29 06:55:36 C 23 44 45.390 +10 13 55.37 U F52
2021-09-29 07:12:59 C 23 44 45.049 +10 13 38.33 U F52
2021-09-29 07:30:27 C 23 44 44.709 +10 13 21.22 U F52
2021-09-29 15:27:50 C 23 44 36.75 +10 05 25.8 V D29
2021-09-29 15:48:13 C 23 44 36.39 +10 05 05.8 V D29
2021-09-29 16:08:35 C 23 44 36.00 +10 04 45.8 V D29
2021-10-09 05:20:40 C 23 42 31.28 +06 44 03.9 V G96
2021-10-09 05:28:52 C 23 42 31.24 +06 43 57.1 V G96
2021-10-09 05:37:05 C 23 42 31.19 +06 43 50.4 V G96
2021-10-09 05:45:20 C 23 42 31.11 +06 43 44.5 V G96
2024-05-18 09:24:56 C 20 31 56.600 +00 25 07.97 V G96