2015 WG9

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6917121862 ± 2.14e-08
Semi-major axis (a)2.0323919467 AU ± 6.81e-09
Inclination (i)34.36399434° ± 1.41e-05
Long. of Asc. Node (Ω)239.33643830° ± 4.91e-06
Arg. of Perihelion (ω)90.02445028° ± 3.78e-06
Mean Anomaly (M)178.36549910° ± 4.29e-06
Mean Motion (n)0.3401739697°/day ± 1.71e-09
Perihelion dist (q)0.62656167 AU ± 4.35e-08
Aphelion dist (Q)3.43822222 AU ± 4.50e-08
Orbital Period2.89741829 yr ± 1.46e-08
Physical Parameters
H (abs. magnitude)20.39
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.299″
Uncertainty0
Orbit TypeApollo
MOID0.029625 AU
Observations Used309
Oppositions4
Arc Total2015-2021
First Observation Used2015-11-27
Last Observation Used2021-06-12
Observations (333)
Date Type RA Dec Mag Band Observatory
2018-05-17 01:40:09 C 11 12 06.62 -30 20 24.1 U 807
2018-05-17 01:45:58 C 11 12 06.45 -30 20 14.5 U 807
2018-05-17 01:51:46 C 11 12 06.26 -30 20 05.0 U 807
2018-05-24 23:32:21 C 11 08 49.03 -25 00 37.0 U 807
2018-05-24 23:54:23 C 11 08 48.76 -25 00 00.3 U 807
2018-05-25 00:16:20 C 11 08 48.56 -24 59 23.0 U 807
2018-09-28 12:08:06 C 09 20 58.15 +35 09 42.3 o 695
2018-09-28 12:18:56 C 09 20 56.72 +35 09 22.1 o 695
2021-05-20 04:54:01 C 12 19 49.66 -30 02 13.3 o 691
2021-05-20 05:06:39 C 12 19 46.62 -30 00 59.3 o 691
2021-05-27 18:36:12 S 11 36 40.987 -07 28 17.90 L C51
2021-05-27 20:10:27 S 11 36 18.331 -07 14 19.61 L C51
2021-05-29 21:48:55 C 11 24 17.75 +00 18 12.8 V 204
2021-05-29 22:02:03 C 11 24 14.52 +00 20 15.0 V 204
2021-05-30 04:29:43 C 11 22 40.79 +01 20 29.6 o 691
2021-05-30 04:53:52 C 11 22 34.70 +01 24 14.2 o 691
2021-05-30 05:17:49 C 11 22 28.75 +01 27 57.0 o 691
2021-05-30 06:48:02 C 11 22 07.45 +01 42 06.9 V T08
2021-05-30 06:56:00 C 11 22 05.42 +01 43 20.7 V T08
2021-05-30 06:59:59 C 11 22 04.43 +01 43 58.4 V T08
2021-05-30 07:17:18 C 11 22 00.00 +01 46 40.4 V T08
2021-06-03 03:35:28 C 10 59 21.48 +15 56 46.4 V G96
2021-06-03 03:42:55 C 10 59 19.59 +15 57 52.2 V G96
2021-06-03 03:50:21 C 10 59 17.67 +15 58 58.2 V G96
2021-06-03 03:57:48 C 10 59 15.71 +16 00 04.4 V G96
2021-06-06 03:45:02 C 10 41 13.05 +26 03 30.1 o 691
2021-06-06 03:49:28 C 10 41 11.87 +26 04 04.2 o 691
2021-06-06 03:53:55 C 10 41 10.67 +26 04 39.1 o 691
2021-06-07 04:18:09 C 10 34 55.10 +29 11 03.4 o 691
2021-06-07 04:28:33 C 10 34 52.27 +29 12 19.7 o 691
2021-06-07 04:38:57 C 10 34 49.50 +29 13 36.2 o 691
2021-06-12 04:41:40 C 10 02 48.06 +41 54 24.8 o 691
2021-06-12 04:52:39 C 10 02 44.67 +41 55 28.8 o 691