2012 HJ8

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7211127437 ± 8.85e-07
Semi-major axis (a)1.9163071981 AU ± 2.48e-08
Inclination (i)13.71619338° ± 2.11e-05
Long. of Asc. Node (Ω)125.91068178° ± 5.34e-04
Arg. of Perihelion (ω)334.25794956° ± 5.93e-04
Mean Anomaly (M)67.48179057° ± 4.53e-05
Mean Motion (n)0.3715477022°/day ± 7.23e-09
Perihelion dist (q)0.53443366 AU ± 1.70e-06
Aphelion dist (Q)3.29818074 AU ± 1.70e-06
Orbital Period2.65275839 yr ± 5.16e-08
Physical Parameters
H (abs. magnitude)21.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.301″
Uncertainty0
Orbit TypeApollo
MOID0.201573 AU
Observations Used43
Oppositions5
Arc Total2012-2020
First Observation Used2012-04-20
Last Observation Used2020-04-20
Observations (43)
Date Type RA Dec Mag Band Observatory
2012-04-20 12:09:48 C 15 08 09.902 +45 11 36.77 L F51
2012-04-20 12:24:38 C 15 08 05.980 +45 10 54.68 L F51
2012-04-20 12:38:48 C 15 08 02.247 +45 10 14.49 L F51
2012-04-21 06:01:24 C 15 03 48.21 +44 21 36.5 o H01
2012-04-21 06:11:12 C 15 03 45.78 +44 21 09.6 o H01
2012-04-21 06:27:11 C 15 03 41.88 +44 20 25.8 o H01
2012-04-21 06:38:17 C 15 03 39.14 +44 19 55.5 o H01
2012-04-22 02:12:40 C 14 59 08.93 +43 26 08.8 u J95
2012-04-22 02:32:58 C 14 59 04.31 +43 25 14.0 u J95
2012-04-22 06:48:58 C 14 58 09.34 +43 13 48.4 o H01
2012-04-22 06:56:49 C 14 58 07.58 +43 13 27.4 o H01
2012-04-22 07:09:47 C 14 58 04.66 +43 12 52.7 o H01
2012-04-22 07:18:52 C 14 58 02.60 +43 12 28.0 o H01
2012-04-22 08:53:38 C 14 57 41.11 +43 08 08.1 u H36
2012-04-22 09:11:50 C 14 57 36.81 +43 07 18.8 u H36
2012-04-22 09:27:27 C 14 57 33.39 +43 06 37.3 u H36
2012-04-24 11:16:11 C 14 47 41.33 +40 55 53.5 o 291
2012-04-24 11:18:03 C 14 47 41.01 +40 55 48.8 o 291
2012-04-24 11:19:53 C 14 47 40.64 +40 55 44.0 o 291
2012-04-25 11:18:16 C 14 43 30.847 +39 55 28.58 V F51
2012-04-25 11:34:16 C 14 43 28.056 +39 54 48.59 V F51
2012-05-01 08:18:47 C 14 24 30.88 +34 32 10.2 o 291
2012-05-01 08:21:36 C 14 24 30.59 +34 32 04.7 o 291
2012-05-01 08:24:26 C 14 24 30.25 +34 31 58.0 o 291
2012-05-10 04:31:57 C 14 07 48.00 +27 54 47.2 o H21
2012-05-10 04:49:33 C 14 07 46.94 +27 54 17.8 o H21
2012-05-10 05:08:03 C 14 07 45.81 +27 53 47.4 o H21
2012-05-15 04:14:37 C 14 02 15.65 +24 47 24.3 o 291
2012-05-15 04:18:00 C 14 02 15.49 +24 47 18.1 o 291
2012-05-15 04:21:22 C 14 02 15.39 +24 47 14.0 o 291
2020-04-03 13:55:17 C 17 33 29.358 +18 50 03.84 V F51
2020-04-19 09:48:58 C 16 26 58.20 +20 12 36.4 V G96
2020-04-19 10:03:42 C 16 26 55.67 +20 12 35.5 V G96
2020-04-19 10:11:04 C 16 26 54.44 +20 12 35.4 V G96
2020-04-19 10:36:08 C 16 26 50.18 +20 12 32.6 V I52
2020-04-19 10:47:07 C 16 26 48.27 +20 12 32.3 V I52
2020-04-19 10:52:36 C 16 26 47.41 +20 12 32.1 V I52
2020-04-19 23:41:48 C 16 24 40.85 +20 11 24.9 V 033
2020-04-19 23:46:58 C 16 24 39.96 +20 11 24.4 V 033
2020-04-19 23:52:08 C 16 24 39.10 +20 11 23.7 V 033
2020-04-20 07:40:26 C 16 23 21.89 +20 10 43.1 u H21
2020-04-20 07:44:37 C 16 23 21.22 +20 10 42.9 u H21
2020-04-20 07:50:28 C 16 23 20.22 +20 10 42.3 u H21