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
2016-01-17 08:30:21 C 07 26 14.86 +51 04 41.5 q H45
2016-01-17 08:31:52 C 07 26 14.93 +51 04 43.2 q H45
2016-01-17 08:33:17 C 07 26 14.97 +51 04 44.7 q H45
2016-01-17 08:34:52 C 07 26 15.03 +51 04 45.9 q H45
2016-01-17 08:37:06 C 07 26 15.10 +51 04 48.3 q H45
2016-01-17 08:38:55 C 07 26 15.19 +51 04 50.0 q H45
2016-01-23 05:41:45 C 07 32 59.81 +53 17 22.5 u H21
2016-01-23 05:47:43 C 07 33 00.07 +53 17 27.3 u H21
2016-01-23 05:56:59 C 07 33 00.41 +53 17 34.8 u H21
2016-01-24 03:49:38 C 07 34 13.70 +53 35 30.4 u H21
2016-01-24 03:59:05 C 07 34 14.19 +53 35 37.9 u H21
2016-01-24 04:10:25 C 07 34 14.72 +53 35 47.3 u H21
2016-01-24 04:25:09 C 07 34 15.41 +53 35 59.5 u H21
2016-01-24 07:19:10 C 07 34 24.29 +53 38 21.0 t 705
2016-01-24 07:20:37 C 07 34 24.36 +53 38 22.1 t 705
2016-01-24 07:22:04 C 07 34 24.40 +53 38 23.4 t 705
2016-01-27 09:41:36 C 07 38 52.98 +54 33 13.7 L T05
2016-01-27 10:19:43 C 07 38 54.88 +54 33 39.3 L T05
2016-01-27 10:38:28 C 07 38 55.95 +54 33 51.8 L T05
2016-01-27 10:44:55 C 07 38 56.38 +54 33 56.4 L T05
2016-01-30 07:38:42 C 07 43 34.83 +55 16 08.3 q H45
2016-01-30 07:40:02 C 07 43 34.91 +55 16 09.2 q H45
2016-01-30 07:41:32 C 07 43 35.03 +55 16 09.8 q H45
2016-01-30 07:43:25 C 07 43 35.15 +55 16 11.0 q H45
2016-01-30 07:45:15 C 07 43 35.35 +55 16 11.8 q H45
2016-01-30 07:46:21 C 07 43 35.37 +55 16 12.3 q H45
2016-01-30 12:16:37 C 07 43 56.72 +55 18 40.8 o D54
2016-01-30 12:27:32 C 07 43 57.71 +55 18 43.3 o D54
2016-01-31 04:05:56 C 07 45 06.00 +55 27 07.0 q 703
2016-01-31 04:14:38 C 07 45 06.59 +55 27 12.3 q 703
2016-01-31 04:32:00 C 07 45 07.88 +55 27 18.8 q 703
2016-02-01 12:56:55 C 07 47 33.25 +55 43 03.1 o D54
2016-02-01 13:07:28 C 07 47 33.98 +55 43 09.8 o D54
2016-02-01 13:08:56 C 07 47 33.90 +55 43 11.4 o D54
2016-02-01 13:19:28 C 07 47 34.71 +55 43 16.3 o D54
2016-02-02 13:44:22 C 07 49 28.95 +55 53 52.5 o D54
2016-02-02 13:56:41 C 07 49 29.75 +55 54 01.2 o D54
2016-02-03 00:55:47 C 07 50 23.51 +55 58 23.6 q I15
2016-02-03 01:02:05 C 07 50 23.99 +55 58 26.4 q I15
2016-02-03 01:08:20 C 07 50 24.46 +55 58 29.0 q I15
2016-02-03 07:09:11 C 07 50 51.20 +56 00 52.3 q H45
2016-02-03 07:10:59 C 07 50 51.34 +56 00 52.7 q H45
2016-02-03 07:12:49 C 07 50 51.50 +56 00 53.4 q H45
2016-02-03 07:14:13 C 07 50 51.58 +56 00 53.9 q H45
2016-02-03 07:15:39 C 07 50 51.70 +56 00 54.3 q H45
2016-02-03 07:17:08 C 07 50 51.82 +56 00 54.8 q H45
2016-02-04 12:57:04 C 07 53 20.85 +56 11 18.4 o D54
2016-02-04 13:07:00 C 07 53 21.48 +56 11 21.6 o D54
2016-02-04 13:18:04 C 07 53 22.34 +56 11 24.1 o D54
2016-02-04 22:30:31 C 07 54 08.54 +56 14 23.2 q K38