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
2016-03-13 20:10:05 C 09 31 45.75 +49 00 58.4 q A17
2016-03-13 20:27:00 C 09 31 47.44 +49 00 39.8 q A17
2016-03-13 20:43:54 C 09 31 49.12 +49 00 21.5 q A17
2016-03-14 02:55:34 C 09 32 28.87 +48 53 32.7 u 926
2016-03-14 03:10:54 C 09 32 30.32 +48 53 15.9 u 926
2016-03-14 03:27:06 C 09 32 31.75 +48 52 58.9 u 926
2016-03-15 07:27:44 C 09 35 25.01 +48 21 25.0 q H45
2016-03-15 07:31:32 C 09 35 25.45 +48 21 21.5 q H45
2016-03-15 07:33:24 C 09 35 25.57 +48 21 19.1 q H45
2016-03-15 07:35:37 C 09 35 25.76 +48 21 16.6 q H45
2016-03-15 07:37:54 C 09 35 26.04 +48 21 14.3 q H45
2016-03-15 07:41:09 C 09 35 26.38 +48 21 10.1 q H45
2016-03-15 07:42:57 C 09 35 26.51 +48 21 08.2 q H45
2016-03-17 02:25:09 C 09 39 51.72 +47 31 54.4 R G45
2016-03-17 02:32:39 C 09 39 52.46 +47 31 45.3 R G45
2016-03-17 02:33:19 C 09 39 52.47 +47 31 44.5 R G45
2016-03-17 02:40:56 C 09 39 53.16 +47 31 35.9 R G45
2016-03-17 02:48:41 C 09 39 54.01 +47 31 27.6 R G45
2016-03-17 02:55:20 C 09 39 54.55 +47 31 19.3 R G45
2016-03-17 04:04:56 C 09 40 00.85 +47 29 58.1 u H21
2016-03-17 04:08:46 C 09 40 01.19 +47 29 53.6 u H21
2016-03-17 04:12:41 C 09 40 01.57 +47 29 49.0 u H21
2016-03-17 04:15:48 C 09 40 01.89 +47 29 45.4 u H21
2016-03-17 04:20:27 C 09 40 02.31 +47 29 40.2 u H21
2016-03-17 04:27:59 C 09 40 03.05 +47 29 31.3 u H21
2016-03-17 07:17:55 C 09 40 19.53 +47 26 09.6 q H45
2016-03-17 07:19:26 C 09 40 19.70 +47 26 07.8 q H45
2016-03-17 07:21:04 C 09 40 19.86 +47 26 05.5 q H45
2016-03-17 07:22:58 C 09 40 20.00 +47 26 03.2 q H45
2016-03-17 07:24:20 C 09 40 20.13 +47 26 01.6 q H45
2016-03-17 07:26:05 C 09 40 20.30 +47 25 59.6 q H45
2016-03-18 01:12:51 C 09 42 10.18 +47 05 01.1 u H21
2016-03-18 01:17:02 C 09 42 10.58 +47 04 56.4 u H21
2016-03-18 01:21:13 C 09 42 11.00 +47 04 51.5 u H21
2016-03-18 01:25:24 C 09 42 11.37 +47 04 46.6 u H21
2016-03-18 01:31:41 C 09 42 11.94 +47 04 39.1 u H21
2016-03-18 02:21:11 C 09 42 17.23 +47 03 41.2 R G45
2016-03-18 02:22:15 C 09 42 17.38 +47 03 39.4 R G45
2016-03-18 02:28:42 C 09 42 17.98 +47 03 32.4 R G45
2016-03-18 02:28:48 C 09 42 18.02 +47 03 32.5 R G45
2016-03-18 02:29:52 C 09 42 18.01 +47 03 31.4 R G45
2016-03-18 02:36:08 C 09 42 18.67 +47 03 21.9 R G45
2016-03-18 02:36:13 C 09 42 18.67 +47 03 23.0 R G45
2016-03-18 02:37:17 C 09 42 18.76 +47 03 22.6 R G45
2016-03-18 02:43:27 C 09 42 19.27 +47 03 15.7 R G45
2016-03-18 02:44:51 C 09 42 19.47 +47 03 14.2 R G45
2016-03-18 02:51:12 C 09 42 20.04 +47 03 06.7 R G45
2016-03-18 02:52:11 C 09 42 20.22 +47 03 05.6 R G45
2016-03-18 20:42:17 C 09 44 07.14 +46 41 46.0 c A53
2016-03-18 21:06:43 C 09 44 09.42 +46 41 18.1 c A53