2012 HN40

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6712601346 ± 6.40e-08
Semi-major axis (a)2.7061963487 AU ± 2.16e-08
Inclination (i)14.38333734° ± 1.96e-05
Long. of Asc. Node (Ω)60.56440310° ± 8.47e-06
Arg. of Perihelion (ω)246.67622997° ± 2.55e-05
Mean Anomaly (M)357.40540905° ± 1.25e-05
Mean Motion (n)0.2213978099°/day ± 2.65e-09
Perihelion dist (q)0.88963462 AU ± 1.73e-07
Aphelion dist (Q)4.52275807 AU ± 1.77e-07
Orbital Period4.45183393 yr ± 5.33e-08
Physical Parameters
H (abs. magnitude)20.49
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.284″
Uncertainty0
Orbit TypeApollo
MOID0.074556 AU
Observations Used90
Oppositions7
Arc Total2012-2021
First Observation Used2012-04-21
Last Observation Used2021-05-13
Observations (121)
Date Type RA Dec Mag Band Observatory
2012-05-18 09:02:19 C 14 37 29.454 -01 12 52.98 L F51
2012-05-18 09:41:35 C 14 37 23.819 -01 13 30.11 L F51
2012-05-21 06:14:55 C 14 27 24.96 -02 27 10.7 18.7 c 704
2012-05-21 06:31:16 C 14 27 22.20 -02 27 30.8 19.3 c 704
2012-05-21 07:04:30 C 14 27 16.79 -02 28 09.0 19.3 c 704
2012-05-21 07:21:15 C 14 27 13.91 -02 28 29.5 19.2 c 704
2012-05-22 05:21:23 C 14 23 41.88 -02 56 07.8 18.6 c 704
2012-05-22 05:35:19 C 14 23 39.36 -02 56 24.8 18.2 c 704
2012-05-22 05:37:20 C 14 23 39.08 -02 56 27.9 18.9 c 704
2012-05-22 05:51:26 C 14 23 36.55 -02 56 47.1 19.0 c 704
2012-05-22 05:53:27 C 14 23 36.29 -02 56 49.2 19.1 c 704
2012-05-22 06:07:22 C 14 23 33.82 -02 57 07.5 18.6 c 704
2012-05-22 06:09:24 C 14 23 33.48 -02 57 10.0 18.8 c 704
2012-05-22 06:23:19 C 14 23 30.99 -02 57 28.2 19.0 c 704
2012-05-22 06:25:20 C 14 23 30.61 -02 57 31.4 18.2 c 704
2012-05-22 06:39:16 C 14 23 28.25 -02 57 48.8 18.4 c 704
2012-05-23 00:51:34 C 14 20 23.01 -03 22 23.7 o 954
2012-05-23 01:01:39 C 14 20 21.10 -03 22 36.7 o 954
2012-05-23 01:11:18 C 14 20 19.33 -03 22 49.9 o 954
2012-05-23 01:21:32 C 14 20 17.60 -03 23 05.5 o 954
2012-05-23 01:31:09 C 14 20 15.81 -03 23 18.8 o 954
2012-05-23 01:41:04 C 14 20 14.11 -03 23 32.5 o 954
2012-05-23 05:50:55 C 14 19 30.81 -03 29 30.3 u H45
2012-05-23 05:53:14 C 14 19 30.39 -03 29 33.7 u H45
2012-05-23 05:54:42 C 14 19 30.06 -03 29 35.4 u H45
2012-05-23 05:56:10 C 14 19 29.86 -03 29 37.7 u H45
2012-05-23 05:58:11 C 14 19 29.44 -03 29 40.8 u H45
2012-05-23 05:59:40 C 14 19 29.17 -03 29 42.4 u H45
2012-05-26 03:50:45 C 14 06 13.61 -05 21 15.0 o 691
2012-05-26 04:06:01 C 14 06 10.32 -05 21 42.3 o 691
2012-05-26 04:21:17 C 14 06 06.99 -05 22 09.6 o 691
2012-05-26 05:27:20 C 14 05 51.89 -05 24 09.6 u H45
2012-05-26 05:29:24 C 14 05 51.46 -05 24 12.6 u H45
2012-05-26 05:31:11 C 14 05 51.05 -05 24 16.3 u H45
2012-05-26 05:32:45 C 14 05 50.76 -05 24 18.5 u H45
2012-05-26 05:34:06 C 14 05 50.45 -05 24 21.8 u H45
2012-05-26 05:36:41 C 14 05 49.85 -05 24 26.1 u H45
2012-05-27 03:46:28 C 14 01 08.40 -06 05 39.0 o 691
2012-05-27 04:02:09 C 14 01 04.79 -06 06 09.5 o 691
2012-05-27 04:17:49 C 14 01 01.20 -06 06 40.0 o 691
2012-05-29 22:02:19 C 13 45 20.27 -08 27 32.0 t 204
2012-05-29 22:11:36 C 13 45 17.77 -08 27 53.7 t 204
2012-05-29 22:20:51 C 13 45 15.30 -08 28 15.4 t 204
2012-06-05 13:25:27 C 12 53 43.20 -16 17 21.3 u D90
2012-06-05 13:37:26 C 12 53 38.25 -16 18 03.4 u D90
2012-06-05 13:49:36 C 12 53 33.25 -16 18 46.0 u D90
2012-06-06 22:43:42 C 12 39 45.14 -18 19 34.2 o 807
2012-06-06 22:48:50 C 12 39 42.79 -18 19 53.8 o 807
2012-06-06 22:53:40 C 12 39 40.58 -18 20 12.1 o 807
2012-06-06 23:03:33 C 12 39 36.06 -18 20 49.6 o 807