IAA RAS IAA Minor Planet Database

2018 HJ

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4771232996 ± 6.38e-06
Semi-major axis (a)2.1673512134 AU ± 2.69e-05
Inclination (i)5.92941252° ± 2.64e-05
Long. of Asc. Node (Ω)326.73246675° ± 1.94e-04
Arg. of Perihelion (ω)314.97591063° ± 1.66e-04
Mean Anomaly (M)104.47793265° ± 1.55e-02
Mean Motion (n)0.3089003044°/day ± 5.76e-06
Perihelion dist (q)1.13325745 AU ± 1.97e-05
Aphelion dist (Q)3.20144498 AU ± 4.21e-05
Orbital Period3.19075854 yr ± 5.95e-05
Physical Parameters
H (abs. magnitude)20.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.320″
Uncertainty2
Orbit TypeAmor
MOID0.136307 AU
Observations Used43
Oppositions1
Arc Total2018-2018
First Observation Used2018-03-20
Last Observation Used2018-11-07
Observations (44)
Date Type RA Dec Mag Band Observatory
2018-03-20 10:51:48 C 12 39 26.678 -13 29 37.71 – U F51
2018-03-20 11:08:32 C 12 39 25.845 -13 29 39.29 – U F51
2018-04-16 06:37:37 C 12 00 11.65 -13 12 59.1 – U G96
2018-04-16 06:45:03 C 12 00 11.13 -13 12 58.7 – U G96
2018-04-16 06:52:28 C 12 00 10.65 -13 12 57.0 – U G96
2018-04-16 06:59:54 C 12 00 10.16 -13 12 56.0 – U G96
2018-04-17 00:16:43 C 11 59 04.41 -13 10 23.3 – U 807
2018-04-17 00:26:14 C 11 59 03.79 -13 10 22.2 – U 807
2018-04-17 00:35:43 C 11 59 03.17 -13 10 21.0 – U 807
2018-04-17 21:09:12 C 11 57 44.37 -13 07 50.6 – S 033
2018-04-17 21:14:36 C 11 57 44.01 -13 07 49.7 – S 033
2018-04-17 21:20:00 C 11 57 43.67 -13 07 48.9 – S 033
2018-04-17 21:25:24 C 11 57 43.31 -13 07 48.4 – S 033
2018-04-18 03:26:02 C 11 57 21.00 -13 06 54.9 – U I52
2018-04-18 03:30:51 C 11 57 20.65 -13 06 54.3 – U I52
2018-04-18 03:35:37 C 11 57 20.37 -13 06 54.3 – U I52
2018-04-18 03:40:26 C 11 57 20.06 -13 06 53.2 – U I52
2018-04-18 21:03:49 C 11 56 14.49 -13 04 29.9 – S 033
2018-04-18 21:09:13 C 11 56 14.14 -13 04 29.6 – S 033
2018-04-18 21:14:37 C 11 56 13.79 -13 04 28.5 – S 033
2018-04-18 21:20:02 C 11 56 13.44 -13 04 27.6 – S 033
2018-04-19 00:55:31 C 11 56 00.47 -13 03 38.8 – U 807
2018-04-19 01:01:26 C 11 56 00.10 -13 03 38.4 – U 807
2018-04-19 01:08:12 C 11 55 59.66 -13 03 37.7 – U 807
2018-04-19 20:23:33 C 11 54 48.36 -13 01 10.3 – S 033
2018-04-19 21:24:46 C 11 54 44.46 -13 01 01.0 – S 033
2018-04-20 03:59:03 C 11 54 20.74 -13 00 01.2 – U I52
2018-04-20 04:08:54 C 11 54 20.17 -12 59 59.9 – U I52
2018-05-08 03:47:43 C 11 34 40.18 -12 01 16.0 – U I52
2018-05-08 03:54:53 C 11 34 39.92 -12 01 16.6 – U I52
2018-05-08 04:01:56 C 11 34 39.80 -12 01 16.0 – U I52
2018-05-16 06:12:46 C 11 31 22.26 -11 48 41.2 – o 691
2018-05-16 06:19:16 C 11 31 22.17 -11 48 40.6 – o 691
2018-05-16 06:25:46 C 11 31 22.11 -11 48 40.2 – o 691
2018-06-02 03:46:36 C 11 37 13.73 -12 15 46.9 – o 691
2018-06-02 04:08:14 C 11 37 14.43 -12 15 51.1 – o 691
2018-06-02 04:29:45 C 11 37 15.13 -12 15 54.8 – o 691
2018-07-08 00:20:30 C 12 42 38.82 -17 25 48.6 – U 807
2018-07-08 00:30:00 C 12 42 39.92 -17 25 53.4 – U 807
2018-07-08 00:39:32 C 12 42 41.02 -17 25 58.6 – U 807
2018-08-06 00:09:41 C 14 29 33.67 -23 40 58.5 – u 807
2018-08-06 00:18:09 C 14 29 35.27 -23 41 02.0 – u 807
2018-08-06 00:26:23 C 14 29 36.85 -23 41 05.5 – u 807
2018-11-07 00:35:12 C 21 20 58.82 -10 40 25.4 – U 807