2015 WH9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5902685400 ± 4.28e-08
Semi-major axis (a)3.1612783997 AU ± 1.50e-07
Inclination (i)11.29584242° ± 3.40e-06
Long. of Asc. Node (Ω)68.20479369° ± 1.19e-05
Arg. of Perihelion (ω)67.12916593° ± 3.17e-05
Mean Anomaly (M)265.53471450° ± 4.77e-05
Mean Motion (n)0.1753550027°/day ± 1.25e-08
Perihelion dist (q)1.29527521 AU ± 1.49e-07
Aphelion dist (Q)5.02728159 AU ± 2.74e-07
Orbital Period5.62074802 yr ± 3.99e-07
Physical Parameters
H (abs. magnitude)18.59
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.251″
Uncertainty0
Orbit TypeAmor
MOID0.368388 AU
Observations Used625
Oppositions6
Arc Total2015-2022
First Observation Used2015-11-22
Last Observation Used2022-06-06
Observations (644)
Date Type RA Dec Mag Band Observatory
2016-02-04 22:52:07 C 07 54 10.20 +56 14 29.8 q K38
2016-02-04 23:13:11 C 07 54 11.82 +56 14 36.0 q K38
2016-02-05 07:58:05 C 07 54 56.21 +56 17 16.1 q 703
2016-02-05 08:02:59 C 07 54 56.60 +56 17 17.8 q 703
2016-02-05 08:07:51 C 07 54 57.02 +56 17 19.3 q 703
2016-02-05 08:12:45 C 07 54 57.34 +56 17 20.5 q 703
2016-02-05 21:32:28 C 07 56 08.30 +56 20 59.0 q C77
2016-02-05 21:42:10 C 07 56 09.03 +56 21 01.8 q C77
2016-02-05 21:54:19 C 07 56 10.02 +56 21 05.0 q C77
2016-02-07 06:44:36 C 07 59 04.37 +56 28 45.8 q H45
2016-02-07 06:46:32 C 07 59 04.51 +56 28 46.3 q H45
2016-02-07 06:48:45 C 07 59 04.72 +56 28 46.7 q H45
2016-02-07 06:50:12 C 07 59 04.85 +56 28 46.8 q H45
2016-02-07 06:51:47 C 07 59 04.97 +56 28 47.1 q H45
2016-02-07 06:53:38 C 07 59 05.11 +56 28 47.5 q H45
2016-02-10 07:46:44 C 08 05 56.18 +56 38 25.9 q H45
2016-02-10 07:49:14 C 08 05 56.44 +56 38 26.0 q H45
2016-02-10 07:51:08 C 08 05 56.57 +56 38 26.0 q H45
2016-02-10 07:52:54 C 08 05 56.72 +56 38 26.0 q H45
2016-02-10 07:54:57 C 08 05 56.93 +56 38 26.0 q H45
2016-02-10 07:57:01 C 08 05 57.12 +56 38 26.0 q H45
2016-02-11 07:36:39 C 08 08 17.01 +56 39 25.9 q H45
2016-02-11 07:41:30 C 08 08 17.47 +56 39 25.8 q H45
2016-02-11 07:52:46 C 08 08 18.49 +56 39 25.0 q H45
2016-02-11 07:54:42 C 08 08 18.64 +56 39 25.0 q H45
2016-02-11 07:57:10 C 08 08 18.88 +56 39 25.0 q H45
2016-02-11 07:59:28 C 08 08 19.09 +56 39 24.8 q H45
2016-02-12 01:40:22 C 08 10 07.85 +56 39 27.5 q I15
2016-02-12 01:48:37 C 08 10 08.63 +56 39 27.6 q I15
2016-02-12 01:56:50 C 08 10 09.37 +56 39 27.8 q I15
2016-02-12 02:29:59 C 08 10 13.65 +56 39 26.0 R G45
2016-02-12 02:30:05 C 08 10 13.65 +56 39 25.9 R G45
2016-02-12 02:30:10 C 08 10 13.67 +56 39 26.0 R G45
2016-02-12 02:36:58 C 08 10 14.29 +56 39 26.2 R G45
2016-02-12 02:37:04 C 08 10 14.30 +56 39 26.2 R G45
2016-02-12 02:37:09 C 08 10 14.32 +56 39 26.1 R G45
2016-02-12 02:44:14 C 08 10 15.01 +56 39 26.4 R G45
2016-02-12 02:44:20 C 08 10 14.97 +56 39 26.5 R G45
2016-02-12 02:51:28 C 08 10 15.67 +56 39 26.6 R G45
2016-02-12 02:51:34 C 08 10 15.71 +56 39 26.6 R G45
2016-02-12 02:51:40 C 08 10 15.69 +56 39 26.7 R G45
2016-02-12 02:58:39 C 08 10 16.36 +56 39 26.9 R G45
2016-02-12 02:58:44 C 08 10 16.35 +56 39 26.8 R G45
2016-02-12 02:58:50 C 08 10 16.39 +56 39 26.9 R G45
2016-02-12 06:17:49 C 08 10 34.86 +56 39 26.9 q 703
2016-02-12 06:25:16 C 08 10 35.58 +56 39 27.6 q 703
2016-02-12 06:32:36 C 08 10 36.24 +56 39 26.6 q 703
2016-02-12 06:39:50 C 08 10 36.92 +56 39 26.4 q 703
2016-02-15 02:25:52 C 08 17 41.00 +56 33 27.4 R G45
2016-02-15 02:25:58 C 08 17 41.03 +56 33 27.3 R G45