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
2016-02-26 06:58:16 C 08 47 40.66 +54 50 14.0 q 703
2016-02-26 07:09:09 C 08 47 41.68 +54 50 07.2 q 703
2016-02-27 04:57:49 C 08 50 12.03 +54 36 27.0 u H21
2016-02-27 05:02:00 C 08 50 12.50 +54 36 24.2 u H21
2016-02-27 05:06:11 C 08 50 12.93 +54 36 21.6 u H21
2016-02-27 05:11:04 C 08 50 13.46 +54 36 18.4 u H21
2016-02-27 08:06:04 C 08 50 32.56 +54 34 22.8 q H45
2016-02-27 08:08:08 C 08 50 32.69 +54 34 20.1 q H45
2016-02-27 08:10:08 C 08 50 32.85 +54 34 18.9 q H45
2016-02-27 08:11:49 C 08 50 33.15 +54 34 17.5 q H45
2016-02-27 08:13:11 C 08 50 33.16 +54 34 16.8 q H45
2016-02-27 08:14:51 C 08 50 33.34 +54 34 15.7 q H45
2016-02-28 04:46:47 C 08 52 55.87 +54 20 44.8 q H45
2016-02-28 04:48:41 C 08 52 56.11 +54 20 43.9 q H45
2016-02-28 04:50:46 C 08 52 56.30 +54 20 42.4 q H45
2016-02-28 04:52:37 C 08 52 56.48 +54 20 41.2 q H45
2016-02-28 04:54:29 C 08 52 56.67 +54 20 40.1 q H45
2016-02-28 04:56:35 C 08 52 56.97 +54 20 38.5 q H45
2016-02-28 05:27:51 C 08 53 00.78 +54 20 18.4 q 703
2016-02-28 05:32:59 C 08 53 01.44 +54 20 14.5 q 703
2016-02-28 05:38:05 C 08 53 01.89 +54 20 11.4 q 703
2016-02-28 05:43:11 C 08 53 02.50 +54 20 07.3 q 703
2016-03-01 09:26:53 C 08 58 56.21 +53 43 04.0 L T05
2016-03-01 10:07:27 C 08 59 00.46 +53 42 31.1 L T05
2016-03-01 10:35:19 C 08 59 03.49 +53 42 09.9 L T05
2016-03-01 11:01:45 C 08 59 06.13 +53 41 50.2 L T05
2016-03-02 02:59:15 C 09 00 56.96 +53 29 30.4 q H45
2016-03-02 03:01:03 C 09 00 57.11 +53 29 29.4 q H45
2016-03-02 03:02:45 C 09 00 57.28 +53 29 27.8 q H45
2016-03-02 03:04:25 C 09 00 57.44 +53 29 27.0 q H45
2016-03-02 03:05:39 C 09 00 57.56 +53 29 25.4 q H45
2016-03-02 03:07:08 C 09 00 57.70 +53 29 24.4 q H45
2016-03-03 04:12:25 C 09 03 48.12 +53 09 24.6 q 703
2016-03-03 04:21:10 C 09 03 49.09 +53 09 18.1 q 703
2016-03-03 04:29:54 C 09 03 49.94 +53 09 10.8 q 703
2016-03-03 04:38:39 C 09 03 50.92 +53 09 03.9 q 703
2016-03-04 06:01:34 C 09 06 41.34 +52 47 54.8 q H45
2016-03-04 06:03:07 C 09 06 41.48 +52 47 52.4 q H45
2016-03-04 06:04:18 C 09 06 41.64 +52 47 52.2 q H45
2016-03-04 06:05:52 C 09 06 41.76 +52 47 50.7 q H45
2016-03-04 06:07:10 C 09 06 41.96 +52 47 49.7 q H45
2016-03-04 06:08:34 C 09 06 42.07 +52 47 48.3 q H45
2016-03-10 22:24:22 C 09 24 20.54 +50 15 51.4 q 204
2016-03-10 22:30:27 C 09 24 21.18 +50 15 45.1 q 204
2016-03-10 22:44:55 C 09 24 22.63 +50 15 29.8 q 204
2016-03-10 22:49:28 C 09 24 23.11 +50 15 25.0 q 204
2016-03-11 09:50:13 C 09 25 33.65 +50 04 02.3 L T05
2016-03-11 09:56:32 C 09 25 34.30 +50 03 54.9 L T05
2016-03-11 10:00:46 C 09 25 34.88 +50 03 52.0 L T05
2016-03-11 10:36:22 C 09 25 38.48 +50 03 13.0 L T05