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
2015-12-29 11:15:41 C 07 12 00.04 +41 49 39.0 q 703
2015-12-29 11:27:08 C 07 12 01.25 +41 50 01.6 L T05
2015-12-29 11:47:24 C 07 12 01.58 +41 50 28.0 L T05
2015-12-29 20:15:57 C 07 12 16.71 +42 01 19.3 S C43
2015-12-29 20:25:35 C 07 12 16.95 +42 01 32.0 S C43
2015-12-29 23:24:50 C 07 12 21.49 +42 05 33.5 q I89
2015-12-29 23:28:11 C 07 12 20.95 +42 05 35.3 o 461
2015-12-29 23:30:01 C 07 12 21.00 +42 05 37.5 o 461
2015-12-29 23:31:50 C 07 12 21.08 +42 05 40.4 o 461
2015-12-29 23:33:40 C 07 12 21.11 +42 05 42.7 o 461
2015-12-29 23:34:03 C 07 12 21.65 +42 05 46.0 q I89
2015-12-29 23:35:31 C 07 12 21.15 +42 05 44.6 o 461
2015-12-29 23:37:21 C 07 12 21.17 +42 05 47.5 o 461
2015-12-29 23:39:12 C 07 12 21.23 +42 05 50.0 o 461
2015-12-29 23:41:02 C 07 12 21.26 +42 05 52.6 o 461
2015-12-29 23:42:51 C 07 12 21.25 +42 05 54.6 o 461
2015-12-29 23:46:48 C 07 12 21.87 +42 06 03.0 q I89
2015-12-30 02:15:54 C 07 12 25.02 +42 09 14.9 q 958
2015-12-30 02:25:25 C 07 12 25.28 +42 09 28.5 q 958
2015-12-30 02:34:56 C 07 12 25.49 +42 09 40.7 q 958
2015-12-30 14:02:04 C 07 12 45.37 +42 24 42.7 o 300
2015-12-30 14:08:40 C 07 12 45.52 +42 24 51.9 o 300
2015-12-30 14:15:18 C 07 12 45.67 +42 25 00.4 o 300
2015-12-30 14:20:16 C 07 12 45.80 +42 25 07.3 o 300
2015-12-30 14:26:52 C 07 12 45.83 +42 25 15.9 o 300
2015-12-30 18:33:00 C 07 12 53.23 +42 30 28.3 L04
2015-12-30 18:43:49 C 07 12 53.48 +42 30 43.0 L04
2015-12-30 18:55:13 C 07 12 53.77 +42 30 58.3 L04
2016-01-02 08:52:31 C 07 14 32.95 +43 52 07.4 q H45
2016-01-02 08:54:35 C 07 14 32.98 +43 52 10.3 q H45
2016-01-02 08:55:58 C 07 14 32.99 +43 52 11.9 q H45
2016-01-02 08:57:45 C 07 14 33.04 +43 52 14.0 q H45
2016-01-02 08:59:18 C 07 14 33.12 +43 52 16.3 q H45
2016-01-02 09:01:03 C 07 14 33.23 +43 52 18.2 q H45
2016-01-04 05:05:20 C 07 15 48.07 +44 49 35.2 u H15
2016-01-04 05:19:15 C 07 15 48.38 +44 49 53.5 u H15
2016-01-04 05:33:06 C 07 15 48.68 +44 50 11.9 u H15
2016-01-05 09:12:09 C 07 16 33.51 +45 25 47.1 q H45
2016-01-05 09:14:13 C 07 16 33.52 +45 25 49.9 q H45
2016-01-05 09:16:54 C 07 16 33.59 +45 25 53.4 q H45
2016-01-05 09:20:21 C 07 16 33.66 +45 25 57.5 q H45
2016-01-05 09:24:39 C 07 16 33.77 +45 26 02.2 q H45
2016-01-05 09:26:17 C 07 16 33.80 +45 26 04.5 q H45
2016-01-06 01:59:21 C 07 17 04.40 +45 47 12.8 q I15
2016-01-06 02:05:36 C 07 17 04.60 +45 47 20.8 q I15
2016-01-06 02:11:50 C 07 17 04.72 +45 47 29.2 q I15
2016-01-09 09:44:55 C 07 19 26.33 +47 27 22.2 L T05
2016-01-09 10:25:50 C 07 19 27.28 +47 28 12.8 L T05
2016-01-09 10:41:08 C 07 19 27.62 +47 28 31.3 L T05
2016-01-09 10:45:10 C 07 19 27.66 +47 28 36.7 L T05