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
2018-06-09 01:57:20 C 16 12 44.55 +24 24 30.2 U W34
2018-06-09 07:40:03 C 16 13 33.69 +24 41 45.8 U 703
2018-06-09 07:47:34 C 16 13 34.79 +24 42 08.6 U 703
2018-06-09 07:55:06 C 16 13 35.76 +24 42 30.3 U 703
2018-06-09 08:02:38 C 16 13 36.82 +24 42 53.1 U 703
2018-06-10 11:01:59 C 16 17 52.84 +26 03 56.6 U T05
2018-06-10 11:29:59 C 16 17 56.83 +26 05 19.2 U T05
2018-06-10 11:51:08 C 16 17 59.92 +26 06 21.2 U T05
2018-06-10 12:03:10 C 16 18 01.79 +26 06 55.5 U T05
2018-06-13 07:08:43 C 16 29 37.65 +29 24 41.2 U 703
2018-06-13 07:16:15 C 16 29 38.86 +29 25 02.9 U 703
2018-06-13 07:31:20 C 16 29 41.38 +29 25 46.3 U 703
2018-06-22 08:03:26 C 17 16 54.37 +38 57 22.9 U 703
2018-06-22 08:17:38 C 17 16 57.62 +38 57 55.2 U 703
2018-06-22 08:24:43 C 17 16 59.31 +38 58 10.4 U 703
2018-06-24 07:28:10 C 17 29 17.14 +40 41 26.9 U G96
2018-06-24 07:35:55 C 17 29 19.07 +40 41 42.9 U G96
2018-06-24 07:43:39 C 17 29 21.00 +40 41 58.7 U G96
2018-06-24 07:51:24 C 17 29 22.93 +40 42 14.6 U G96
2018-06-24 10:16:03 C 17 30 02.433 +40 47 30.38 U F52
2018-06-24 10:29:04 C 17 30 05.646 +40 47 57.43 U F52
2018-06-24 10:53:05 C 17 30 11.535 +40 48 45.99 U F52
2018-07-01 05:59:21 C 18 17 19.05 +45 24 23.1 u H21
2018-07-01 06:03:29 C 18 17 20.22 +45 24 28.3 u H21
2018-07-01 06:06:36 C 18 17 21.10 +45 24 32.2 u H21
2018-07-01 06:09:42 C 18 17 22.00 +45 24 36.2 u H21
2018-07-01 06:12:48 C 18 17 22.88 +45 24 40.0 u H21
2018-07-01 06:15:54 C 18 17 23.76 +45 24 44.1 u H21
2018-07-01 06:19:01 C 18 17 24.64 +45 24 47.8 u H21
2018-07-03 07:55:45 C 18 32 38.01 +46 21 56.0 U G96
2018-07-03 08:03:22 C 18 32 40.19 +46 22 03.5 U G96
2018-07-03 08:10:58 C 18 32 42.38 +46 22 11.1 U G96
2018-07-03 08:18:35 C 18 32 44.57 +46 22 18.3 U G96
2018-07-11 11:22:14 C 19 32 20.34 +48 02 43.6 U T08
2018-07-11 11:39:55 C 19 32 25.22 +48 02 43.0 U T08
2018-07-11 11:41:56 C 19 32 25.77 +48 02 43.5 U T08
2018-07-11 11:53:58 C 19 32 29.08 +48 02 43.4 U T08
2018-09-06 05:03:52 C 22 27 04.33 +17 36 03.3 V 703
2018-09-06 05:12:05 C 22 27 04.53 +17 35 51.3 V 703
2018-09-06 05:20:17 C 22 27 04.66 +17 35 38.6 V 703
2018-09-06 05:28:29 C 22 27 04.97 +17 35 25.8 V 703
2018-09-08 14:55:52 C 22 28 59.22 +16 07 21.6 q D29
2018-09-08 15:16:14 C 22 28 59.75 +16 06 51.2 q D29
2018-09-08 15:36:36 C 22 29 00.29 +16 06 20.3 q D29
2018-09-09 05:59:34 C 22 29 28.71 +15 44 48.7 V 703
2018-09-09 06:14:43 C 22 29 29.16 +15 44 25.3 V 703
2018-09-09 06:22:17 C 22 29 29.33 +15 44 14.0 V 703
2018-09-10 04:52:06 C 22 30 13.12 +15 11 00.1 V G96
2018-09-10 04:59:33 C 22 30 13.30 +15 10 49.0 V G96
2018-09-10 05:07:02 C 22 30 13.49 +15 10 38.4 V G96