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
2015-12-09 12:21:37 C 06 57 25.78 +32 17 05.5 L T05
2015-12-09 12:52:51 C 06 57 26.72 +32 17 39.7 L T05
2015-12-10 08:42:24 C 06 58 09.02 +32 38 01.0 u H21
2015-12-10 08:44:21 C 06 58 09.08 +32 38 02.9 u H21
2015-12-10 08:46:19 C 06 58 09.14 +32 38 04.9 u H21
2015-12-10 08:48:17 C 06 58 09.20 +32 38 07.1 u H21
2015-12-10 08:50:14 C 06 58 09.27 +32 38 09.0 u H21
2015-12-10 08:52:12 C 06 58 09.33 +32 38 11.1 u H21
2015-12-10 08:54:10 C 06 58 09.39 +32 38 13.1 u H21
2015-12-10 08:56:07 C 06 58 09.45 +32 38 15.2 u H21
2015-12-10 08:58:05 C 06 58 09.51 +32 38 17.1 u H21
2015-12-10 09:00:02 C 06 58 09.57 +32 38 19.0 u H21
2015-12-10 09:02:00 C 06 58 09.63 +32 38 21.1 u H21
2015-12-10 09:03:46 C 06 58 09.68 +32 38 22.9 u H21
2015-12-11 06:45:42 C 06 58 55.86 +33 01 11.0 u H21
2015-12-11 06:47:39 C 06 58 55.92 +33 01 13.1 u H21
2015-12-11 06:49:37 C 06 58 55.97 +33 01 15.1 u H21
2015-12-11 06:51:35 C 06 58 56.03 +33 01 17.2 u H21
2015-12-11 06:53:32 C 06 58 56.10 +33 01 19.4 u H21
2015-12-11 06:55:30 C 06 58 56.15 +33 01 21.4 u H21
2015-12-11 06:57:27 C 06 58 56.21 +33 01 23.6 u H21
2015-12-11 06:59:25 C 06 58 56.29 +33 01 25.6 u H21
2015-12-11 07:01:23 C 06 58 56.35 +33 01 27.5 u H21
2015-12-11 07:03:20 C 06 58 56.41 +33 01 29.5 u H21
2015-12-11 07:05:18 C 06 58 56.46 +33 01 31.9 u H21
2015-12-14 10:08:55 C 07 01 27.58 +34 23 29.1 u 926
2015-12-14 10:30:13 C 07 01 28.17 +34 23 52.7 u 926
2015-12-14 10:56:34 C 07 01 28.89 +34 24 21.7 u 926
2015-12-15 10:03:31 C 07 02 13.67 +34 50 30.4 q H45
2015-12-15 10:05:18 C 07 02 13.74 +34 50 32.4 q H45
2015-12-15 10:07:04 C 07 02 13.78 +34 50 34.4 q H45
2015-12-15 10:08:57 C 07 02 13.84 +34 50 36.4 q H45
2015-12-15 10:10:45 C 07 02 13.89 +34 50 38.4 q H45
2015-12-15 10:12:27 C 07 02 13.93 +34 50 40.5 q H45
2015-12-15 10:14:21 C 07 02 13.98 +34 50 42.5 q H45
2015-12-15 10:16:28 C 07 02 14.04 +34 50 45.0 q H45
2015-12-15 10:21:50 C 07 02 14.23 +34 50 51.2 q H45
2015-12-15 18:30:56 C 07 02 30.52 +35 00 09.8 o C94
2015-12-15 18:42:21 C 07 02 30.91 +35 00 22.1 o C94
2015-12-16 07:16:07 C 07 02 54.90 +35 14 53.8 u H21
2015-12-16 07:18:05 C 07 02 54.94 +35 14 56.2 u H21
2015-12-16 07:20:03 C 07 02 54.99 +35 14 58.4 u H21
2015-12-16 07:22:00 C 07 02 55.06 +35 15 00.4 u H21
2015-12-16 07:23:58 C 07 02 55.11 +35 15 02.8 u H21
2015-12-16 07:25:56 C 07 02 55.17 +35 15 05.1 u H21
2015-12-16 07:27:53 C 07 02 55.21 +35 15 07.3 u H21
2015-12-16 07:29:51 C 07 02 55.26 +35 15 09.6 u H21
2015-12-16 07:31:48 C 07 02 55.33 +35 15 11.7 u H21
2015-12-16 07:33:46 C 07 02 55.37 +35 15 14.2 u H21
2015-12-16 07:35:44 C 07 02 55.42 +35 15 16.5 u H21