2015 HG9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8431252000
Semi-major axis (a)2.1319332000 AU
Inclination (i)5.22461000°
Long. of Asc. Node (Ω)225.17279000°
Arg. of Perihelion (ω)218.94989000°
Mean Anomaly (M)160.80872000°
Mean Motion (n)0.3166239000°/day
Perihelion dist (q)0.33444660 AU
Aphelion dist (Q)3.92941980 AU
Orbital Period3.11286570 yr
Physical Parameters
H (abs. magnitude)24.10
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.300″
Uncertainty8
Orbit TypeApollo
MOID0.036906 AU
Observations Used31
Oppositions1
Arc Total
First Observation Used
Last Observation Used2015-04-22
Observations (34)
Date Type RA Dec Mag Band Observatory
2015-04-18 23:19:58 C 12 31 14.40 -20 44 51.0 L W84
2015-04-18 23:24:33 C 12 31 14.45 -20 44 23.5 L W84
2015-04-18 23:29:11 C 12 31 14.50 -20 43 56.2 L W84
2015-04-18 23:33:49 C 12 31 14.54 -20 43 29.0 L W84
2015-04-18 23:38:29 C 12 31 14.59 -20 43 00.3 L W84
2015-04-19 23:23:53 C 12 31 39.38 -18 35 08.1 L W84
2015-04-19 23:28:51 C 12 31 39.42 -18 34 45.2 L W84
2015-04-19 23:33:49 C 12 31 39.45 -18 34 21.5 L W84
2015-04-19 23:38:47 C 12 31 39.50 -18 33 57.9 L W84
2015-04-19 23:43:44 C 12 31 39.54 -18 33 34.0 L W84
2015-04-20 05:02:41 C 12 31 42.66 -18 09 46.8 o 926
2015-04-20 05:08:11 C 12 31 42.67 -18 09 21.9 o 926
2015-04-20 05:13:42 C 12 31 42.66 -18 08 55.3 o 926
2015-04-20 23:43:28 C 12 32 01.85 -16 49 59.0 L W84
2015-04-20 23:44:38 C 12 32 01.84 -16 49 54.9 L W84
2015-04-20 23:48:02 C 12 32 01.88 -16 49 41.4 L W84
2015-04-20 23:49:11 C 12 32 01.88 -16 49 37.2 L W84
2015-04-20 23:52:41 C 12 32 01.90 -16 49 23.7 L W84
2015-04-20 23:53:49 C 12 32 01.90 -16 49 19.5 L W84
2015-04-20 23:57:15 C 12 32 01.94 -16 49 06.2 L W84
2015-04-20 23:58:24 C 12 32 01.93 -16 49 02.0 L W84
2015-04-21 00:01:49 C 12 32 01.96 -16 48 48.6 L W84
2015-04-21 00:02:59 C 12 32 01.96 -16 48 44.1 L W84
2015-04-21 04:01:19 C 12 32 04.71 -16 34 29.8 o 926
2015-04-21 04:09:22 C 12 32 04.68 -16 33 59.5 o 926
2015-04-21 04:17:24 C 12 32 04.72 -16 33 29.9 o 926
2015-04-21 23:46:33 C 12 32 22.68 -15 24 56.8 L W84
2015-04-21 23:51:12 C 12 32 22.71 -15 24 42.3 L W84
2015-04-21 23:55:51 C 12 32 22.74 -15 24 27.7 L W84
2015-04-22 00:00:29 C 12 32 22.76 -15 24 12.5 L W84
2015-04-22 00:05:01 C 12 32 22.79 -15 23 58.6 L W84
2015-04-25 08:45:15 C 12 33 27.570 -12 07 21.23 V F51
2015-04-25 09:01:25 C 12 33 27.593 -12 06 50.74 V F51
2015-04-25 09:34:16 C 12 33 27.678 -12 05 50.07 V F51