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
2015-12-18 09:21:39 C 07 04 27.70 +36 13 48.6 R G45
2015-12-18 09:30:43 C 07 04 27.91 +36 13 58.9 R G45
2015-12-18 09:39:04 C 07 04 28.14 +36 14 09.0 R G45
2015-12-19 07:56:01 C 07 05 08.69 +36 40 53.4 u H21
2015-12-19 07:57:59 C 07 05 08.74 +36 40 55.9 u H21
2015-12-19 07:59:57 C 07 05 08.79 +36 40 58.1 u H21
2015-12-19 08:01:54 C 07 05 08.84 +36 41 00.4 u H21
2015-12-19 08:03:52 C 07 05 08.89 +36 41 02.9 u H21
2015-12-19 08:05:49 C 07 05 08.94 +36 41 05.3 u H21
2015-12-19 08:07:47 C 07 05 09.00 +36 41 07.6 u H21
2015-12-19 08:09:45 C 07 05 09.05 +36 41 09.9 u H21
2015-12-19 08:11:42 C 07 05 09.09 +36 41 12.2 u H21
2015-12-19 08:13:40 C 07 05 09.14 +36 41 14.6 u H21
2015-12-19 08:15:38 C 07 05 09.18 +36 41 17.0 u H21
2015-12-19 08:17:35 C 07 05 09.23 +36 41 19.3 u H21
2015-12-19 08:19:32 C 07 05 09.27 +36 41 21.6 u H21
2015-12-19 08:21:29 C 07 05 09.33 +36 41 24.0 u H21
2015-12-19 08:23:26 C 07 05 09.37 +36 41 26.2 u H21
2015-12-19 09:29:27 C 07 05 11.09 +36 42 46.5 q H45
2015-12-19 09:31:42 C 07 05 11.15 +36 42 49.0 q H45
2015-12-19 09:33:20 C 07 05 11.19 +36 42 51.1 q H45
2015-12-19 09:35:08 C 07 05 11.23 +36 42 53.3 q H45
2015-12-19 09:36:46 C 07 05 11.28 +36 42 55.2 q H45
2015-12-19 09:38:25 C 07 05 11.31 +36 42 56.9 q H45
2015-12-20 07:04:00 C 07 05 50.28 +37 09 01.2 u H21
2015-12-20 07:05:57 C 07 05 50.31 +37 09 03.5 u H21
2015-12-20 07:07:55 C 07 05 50.34 +37 09 05.9 u H21
2015-12-20 07:09:53 C 07 05 50.39 +37 09 08.6 u H21
2015-12-20 07:11:50 C 07 05 50.45 +37 09 11.0 u H21
2015-12-20 07:13:48 C 07 05 50.49 +37 09 13.1 u H21
2015-12-20 07:15:46 C 07 05 50.55 +37 09 15.8 u H21
2015-12-20 07:17:43 C 07 05 50.60 +37 09 18.0 u H21
2015-12-20 07:19:41 C 07 05 50.66 +37 09 20.4 u H21
2015-12-20 07:21:38 C 07 05 50.70 +37 09 22.9 u H21
2015-12-20 07:23:36 C 07 05 50.74 +37 09 25.2 u H21
2015-12-20 07:25:57 C 07 05 50.79 +37 09 28.1 u H21
2015-12-22 05:05:53 C 07 07 11.88 +38 05 55.5 o 926
2015-12-22 05:19:33 C 07 07 12.21 +38 06 13.0 o 926
2015-12-22 05:37:04 C 07 07 12.65 +38 06 35.6 o 926
2015-12-27 21:30:22 C 07 11 00.30 +41 00 19.9 q K38
2015-12-27 21:48:28 C 07 11 00.71 +41 00 43.9 q K38
2015-12-27 22:06:32 C 07 11 01.13 +41 01 07.8 q K38
2015-12-28 21:26:52 C 07 11 39.45 +41 31 32.5 q K38
2015-12-28 22:00:59 C 07 11 40.21 +41 32 18.0 q K38
2015-12-28 22:33:46 C 07 11 40.95 +41 33 01.4 q K38
2015-12-29 10:13:54 C 07 11 59.93 +41 48 25.3 L T05
2015-12-29 10:34:37 C 07 12 00.28 +41 48 53.0 L T05
2015-12-29 10:53:55 C 07 11 59.54 +41 49 10.6 q 703
2015-12-29 11:01:10 C 07 11 59.70 +41 49 20.6 q 703
2015-12-29 11:08:26 C 07 11 59.82 +41 49 30.3 q 703