2015 HJ9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3396942000
Semi-major axis (a)1.6909280000 AU
Inclination (i)25.39300000° ± 4.00e+00
Long. of Asc. Node (Ω)210.12470000° ± 5.00e+00
Arg. of Perihelion (ω)29.83916000° ± 6.00e+00
Mean Anomaly (M)279.22181000°
Mean Motion (n)0.4482459800°/day
Perihelion dist (q)1.11652960 AU
Aphelion dist (Q)2.26532640 AU
Orbital Period2.19880980 yr
Physical Parameters
H (abs. magnitude)25.40
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.360″
Uncertainty7
Orbit TypeAmor
MOID0.142733 AU
Observations Used18
Oppositions1
Arc Total
First Observation Used
Last Observation Used2015-04-21
Observations (18)
Date Type RA Dec Mag Band Observatory
2015-04-19 06:01:41 C 13 29 49.20 -16 07 13.5 L W84
2015-04-19 06:06:21 C 13 29 49.75 -16 06 41.4 L W84
2015-04-19 06:11:01 C 13 29 50.27 -16 06 11.3 L W84
2015-04-19 06:15:41 C 13 29 50.79 -16 05 39.8 L W84
2015-04-19 06:20:20 C 13 29 51.32 -16 05 08.8 L W84
2015-04-20 10:06:37 C 13 33 23.00 -12 57 33.6 o 291
2015-04-20 10:10:44 C 13 33 23.45 -12 57 05.2 o 291
2015-04-21 05:36:26 C 13 35 57.26 -10 40 09.8 u H21
2015-04-21 05:50:36 C 13 35 58.93 -10 38 28.4 u H21
2015-04-21 05:54:21 C 13 36 00.71 -10 37 55.6 o 926
2015-04-21 06:02:15 C 13 36 00.29 -10 37 05.2 u H21
2015-04-21 06:06:21 C 13 36 02.09 -10 36 30.1 o 926
2015-04-21 06:18:23 C 13 36 03.41 -10 35 03.3 o 926
2015-04-21 07:33:42 C 13 36 10.19 -10 25 02.0 L W84
2015-04-21 07:38:22 C 13 36 10.75 -10 24 28.9 L W84
2015-04-21 07:43:02 C 13 36 11.31 -10 23 54.9 L W84
2015-04-21 07:47:43 C 13 36 11.88 -10 23 22.4 L W84
2015-04-21 07:52:21 C 13 36 12.44 -10 22 48.3 L W84