509821 (2008 WQ63)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6071341496 ± 2.71e-08
Semi-major axis (a)1.7334909837 AU ± 1.14e-09
Inclination (i)0.91742126° ± 5.63e-06
Long. of Asc. Node (Ω)317.06674633° ± 2.69e-04
Arg. of Perihelion (ω)229.03830189° ± 2.69e-04
Mean Anomaly (M)121.28344269° ± 2.56e-06
Mean Motion (n)0.4318469886°/day ± 4.26e-10
Perihelion dist (q)0.68102941 AU ± 4.69e-08
Aphelion dist (Q)2.78595256 AU ± 4.70e-08
Orbital Period2.28235072 yr ± 2.25e-09
Physical Parameters
H (abs. magnitude)20.18
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.337″
Uncertainty0
Orbit TypeApollo
MOID0.007958 AU
Observations Used227
Oppositions13
Arc Total2002-2025
First Observation Used2002-07-18
Last Observation Used2025-07-29
Observations (234)
Date Type RA Dec Mag Band Observatory
2008-12-23 18:05:54 C 09 08 54.87 +21 37 35.7 r 379
2008-12-23 18:17:41 C 09 09 00.00 +21 37 19.4 r 379
2008-12-23 18:20:53 C 09 09 01.41 +21 37 15.2 r 379
2008-12-23 18:24:06 C 09 09 02.78 +21 37 10.8 r 379
2008-12-23 18:35:53 C 09 09 07.93 +21 36 55.4 r 379
2008-12-23 18:39:05 C 09 09 09.35 +21 36 51.0 r 379
2008-12-23 19:05:53 C 09 09 21.04 +21 36 14.0 r 379
2008-12-24 00:31:22 C 09 11 53.81 +21 28 28.4 r B67
2008-12-24 00:40:20 C 09 11 57.93 +21 28 16.2 r B67
2008-12-24 00:50:07 C 09 12 02.33 +21 28 02.5 r B67
2008-12-25 01:17:02 C 09 24 15.38 +20 49 05.0 i 071
2008-12-25 01:19:44 C 09 24 16.93 +20 48 59.9 i 071
2008-12-25 01:23:14 C 09 24 18.56 +20 48 54.3 i 071
2008-12-25 01:28:43 C 09 24 21.30 +20 48 45.2 i 071
2008-12-25 01:31:20 C 09 24 22.85 +20 48 40.3 i 071
2008-12-27 18:41:49 C 10 06 36.32 +18 06 06.1 r 379
2008-12-27 18:44:29 C 10 06 38.33 +18 05 57.4 r 379
2008-12-27 18:51:08 C 10 06 43.37 +18 05 34.3 r 379
2008-12-27 18:56:28 C 10 06 47.34 +18 05 16.4 r 379
2008-12-27 19:05:49 C 10 06 54.40 +18 04 45.1 r 379
2008-12-27 19:08:29 C 10 06 56.44 +18 04 35.6 r 379
2008-12-27 19:17:49 C 10 07 03.50 +18 04 03.8 r 379
2008-12-28 08:59:26 C 10 18 12.12 +17 14 13.8 r H45
2008-12-28 09:00:33 C 10 18 13.03 +17 14 09.2 r H45
2008-12-28 09:02:31 C 10 18 14.63 +17 14 01.4 r H45
2008-12-28 09:03:48 C 10 18 15.71 +17 13 56.7 r H45
2008-12-28 09:05:15 C 10 18 16.87 +17 13 51.0 r H45
2008-12-28 09:06:32 C 10 18 17.93 +17 13 46.1 r H45
2008-12-28 09:07:50 C 10 18 18.98 +17 13 41.1 r H45
2008-12-28 11:05:57 C 10 19 57.95 +17 06 02.8 o H11
2008-12-28 11:08:23 C 10 19 59.88 +17 05 53.1 o H11
2008-12-28 11:10:39 C 10 20 01.96 +17 05 43.0 o H11
2008-12-28 11:12:57 C 10 20 03.73 +17 05 34.7 o H11
2008-12-28 11:15:23 C 10 20 05.77 +17 05 24.9 o H11
2008-12-28 11:22:54 C 10 20 11.80 +17 04 54.0 r 448
2008-12-28 11:24:15 C 10 20 12.92 +17 04 48.7 r 448
2008-12-28 11:25:35 C 10 20 14.05 +17 04 43.4 r 448
2008-12-28 11:26:57 C 10 20 15.15 +17 04 38.0 r 448
2008-12-28 11:28:18 C 10 20 16.27 +17 04 32.6 r 448
2008-12-29 07:23:23 C 10 38 20.82 +15 36 56.1 r H45
2008-12-29 07:24:55 C 10 38 22.24 +15 36 48.9 r H45
2008-12-29 07:26:02 C 10 38 23.25 +15 36 43.7 r H45
2008-12-29 07:27:15 C 10 38 24.42 +15 36 37.5 r H45
2008-12-29 07:28:55 C 10 38 25.96 +15 36 29.8 r H45
2008-12-29 07:30:18 C 10 38 27.27 +15 36 23.1 r H45
2008-12-29 07:31:27 C 10 38 28.34 +15 36 17.8 r H45
2008-12-29 18:26:29 C 10 49 09.08 +14 40 58.3 r 379
2008-12-29 18:33:08 C 10 49 15.65 +14 40 22.0 r 379
2008-12-29 18:35:48 C 10 49 18.29 +14 40 07.8 r 379
2008-12-29 18:38:28 C 10 49 20.84 +14 39 54.0 r 379