2015 HW9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2502857000
Semi-major axis (a)1.4372977000 AU
Inclination (i)25.76429000°
Long. of Asc. Node (Ω)34.82006000°
Arg. of Perihelion (ω)115.94471000°
Mean Anomaly (M)89.52441000°
Mean Motion (n)0.5719841200°/day
Perihelion dist (q)1.07756260 AU
Aphelion dist (Q)1.79703280 AU
Orbital Period1.72313810 yr
Physical Parameters
H (abs. magnitude)23.50
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.300″
Uncertainty7
Orbit TypeAmor
MOID0.189356 AU
Observations Used37
Oppositions1
Arc Total
First Observation Used
Last Observation Used2015-04-28
Observations (38)
Date Type RA Dec Mag Band Observatory
2015-04-20 10:32:00 C 14 34 19.079 -03 09 19.80 L F51
2015-04-20 10:50:11 C 14 34 14.733 -03 10 44.05 L F51
2015-04-20 11:08:28 C 14 34 10.389 -03 12 09.15 L F51
2015-04-21 03:38:27 C 14 30 28.64 -04 27 41.5 t W86
2015-04-21 03:43:12 C 14 30 27.51 -04 28 03.4 t W86
2015-04-21 03:47:57 C 14 30 26.39 -04 28 25.1 t W86
2015-04-21 03:52:37 C 14 30 25.29 -04 28 46.6 t W86
2015-04-21 05:01:59 C 14 30 10.56 -04 34 49.9 o 926
2015-04-21 05:07:50 C 14 30 09.21 -04 35 17.6 o 926
2015-04-21 05:13:42 C 14 30 07.85 -04 35 43.9 o 926
2015-04-21 05:16:14 C 14 30 06.43 -04 36 00.7 q H36
2015-04-21 05:45:01 C 14 29 59.83 -04 38 12.8 q H36
2015-04-21 06:13:47 C 14 29 53.15 -04 40 25.7 q H36
2015-04-21 23:31:50 C 14 26 00.05 -05 59 31.6 033
2015-04-21 23:35:10 C 14 25 59.29 -05 59 46.5 033
2015-04-21 23:38:28 C 14 25 58.52 -06 00 01.7 033
2015-04-21 23:41:47 C 14 25 57.77 -06 00 16.5 033
2015-04-21 23:45:04 C 14 25 56.99 -06 00 31.8 033
2015-04-21 23:48:24 C 14 25 56.24 -06 00 46.7 033
2015-04-22 01:14:06 C 14 25 36.38 -06 07 15.1 033
2015-04-22 01:17:24 C 14 25 35.62 -06 07 30.0 033
2015-04-22 01:20:42 C 14 25 34.84 -06 07 45.4 033
2015-04-22 01:24:00 C 14 25 34.09 -06 08 00.2 033
2015-04-22 01:27:20 C 14 25 33.34 -06 08 15.0 033
2015-04-22 01:30:38 C 14 25 32.58 -06 08 29.8 033
2015-04-22 01:34:58 C 14 25 32.01 -06 08 50.2 q J95
2015-04-22 02:00:18 C 14 25 26.16 -06 10 44.7 q J95
2015-04-22 09:29:26 C 14 23 45.55 -06 44 23.5 o 926
2015-04-22 09:35:51 C 14 23 44.01 -06 44 53.4 o 926
2015-04-22 09:42:23 C 14 23 42.52 -06 45 22.3 o 926
2015-04-23 05:50:10 C 14 19 15.17 -08 14 34.6 u 807
2015-04-23 06:01:16 C 14 19 12.62 -08 15 24.3 u 807
2015-04-23 06:12:07 C 14 19 10.11 -08 16 11.7 u 807
2015-04-23 23:01:38 C 14 15 30.315 -09 30 42.88 q J04
2015-04-23 23:08:03 C 14 15 28.838 -09 31 11.19 q J04
2015-04-23 23:14:29 C 14 15 27.371 -09 31 38.77 q J04
2015-04-28 04:37:50 C 13 54 02.57 -16 24 00.8 u H21
2015-04-28 04:49:20 C 13 54 00.16 -16 24 43.7 u H21