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
2018-05-09 16:42:10 C 15 13 31.93 -06 15 44.5 q D29
2018-05-09 17:02:31 C 15 13 32.51 -06 15 09.5 q D29
2018-05-12 08:59:42 C 15 16 03.36 -04 20 02.4 U 703
2018-05-12 09:07:19 C 15 16 03.55 -04 19 49.1 U 703
2018-05-12 09:22:33 C 15 16 04.14 -04 19 20.4 U 703
2018-05-13 07:13:01 C 15 17 00.45 -03 37 43.1 U G96
2018-05-13 07:20:27 C 15 17 00.69 -03 37 29.0 U G96
2018-05-13 07:27:52 C 15 17 00.95 -03 37 14.5 U G96
2018-05-13 07:35:20 C 15 17 01.19 -03 36 59.4 U G96
2018-05-15 07:58:57 C 15 19 10.99 -02 00 29.4 U 703
2018-05-15 08:06:31 C 15 19 11.24 -02 00 14.0 U 703
2018-05-15 08:14:06 C 15 19 11.50 -01 59 58.6 U 703
2018-05-15 08:21:40 C 15 19 11.82 -01 59 41.6 U 703
2018-05-16 07:47:45 C 15 20 19.33 -01 10 52.2 U G96
2018-05-16 07:55:13 C 15 20 19.61 -01 10 36.4 U G96
2018-05-16 08:02:41 C 15 20 19.88 -01 10 20.6 U G96
2018-05-16 08:10:07 C 15 20 20.19 -01 10 05.0 U G96
2018-05-16 11:40:08 C 15 20 30.08 -01 02 32.8 U T05
2018-05-16 11:55:37 C 15 20 30.69 -01 01 58.9 U T05
2018-05-16 12:11:07 C 15 20 31.30 -01 01 26.8 U T05
2018-05-16 12:26:36 C 15 20 31.87 -01 00 54.1 U T05
2018-05-20 07:37:43 C 15 25 28.13 +02 22 54.0 U 703
2018-05-20 07:45:14 C 15 25 28.50 +02 23 12.1 U 703
2018-05-20 07:52:45 C 15 25 28.84 +02 23 30.2 U 703
2018-05-20 08:00:16 C 15 25 29.23 +02 23 47.4 U 703
2018-05-21 08:12:44 C 15 26 57.04 +03 21 19.3 U 703
2018-05-21 08:20:20 C 15 26 57.46 +03 21 37.5 U 703
2018-05-21 08:27:55 C 15 26 57.87 +03 21 56.1 U 703
2018-05-21 08:35:30 C 15 26 58.28 +03 22 14.6 U 703
2018-06-04 11:07:32 C 15 57 23.95 +18 51 22.0 U T08
2018-06-04 11:21:33 C 15 57 25.43 +18 52 05.0 U T08
2018-06-04 11:37:10 C 15 57 27.14 +18 52 50.7 U T08
2018-06-04 11:54:30 C 15 57 28.98 +18 53 40.9 U T08
2018-06-05 11:12:04 C 16 00 26.988 +20 03 31.25 U F51
2018-06-05 11:29:44 C 16 00 29.006 +20 04 23.38 U F51
2018-06-05 11:47:26 C 16 00 31.054 +20 05 15.84 U F51
2018-06-06 11:09:25 C 16 03 37.77 +21 15 35.2 U T05
2018-06-06 11:26:38 C 16 03 39.84 +21 16 27.3 U T05
2018-06-06 11:50:11 C 16 03 42.71 +21 17 36.6 U T05
2018-06-06 12:02:40 C 16 03 44.24 +21 18 13.2 U T05
2018-06-07 07:59:18 C 16 06 31.05 +22 18 10.6 U 703
2018-06-07 08:06:50 C 16 06 32.05 +22 18 32.8 U 703
2018-06-07 08:14:23 C 16 06 33.02 +22 18 55.2 U 703
2018-06-07 08:21:56 C 16 06 34.00 +22 19 17.8 U 703
2018-06-08 11:18:33 C 16 10 28.05 +23 40 42.8 U T08
2018-06-08 11:34:53 C 16 10 30.17 +23 41 32.2 U T08
2018-06-08 11:54:42 C 16 10 32.85 +23 42 30.5 U T08
2018-06-08 12:12:00 C 16 10 35.18 +23 43 21.5 U T08
2018-06-09 01:37:41 C 16 12 41.85 +24 23 28.8 U W34
2018-06-09 01:47:31 C 16 12 43.22 +24 24 00.0 U W34