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
2008-12-18 17:41:41 C 08 27 52.21 +23 18 40.1 r 379
2008-12-18 17:45:54 C 08 27 53.27 +23 18 38.2 r 379
2008-12-19 01:33:09 C 08 29 56.34 +23 14 33.6 r 493
2008-12-19 01:35:36 C 08 29 56.97 +23 14 32.5 r 493
2008-12-19 01:38:34 C 08 29 57.72 +23 14 30.9 r 493
2008-12-19 12:35:27 C 08 32 53.20 +23 08 27.1 r 448
2008-12-19 12:38:24 C 08 32 54.01 +23 08 25.2 r 448
2008-12-19 12:43:44 C 08 32 55.42 +23 08 21.6 r 448
2008-12-20 07:59:38 C 08 38 34.15 +22 56 23.4 17.7 c 704
2008-12-20 08:07:54 C 08 38 36.78 +22 56 17.4 r 703
2008-12-20 08:16:29 C 08 38 39.26 +22 56 12.4 r 703
2008-12-20 08:18:13 C 08 38 39.56 +22 56 11.4 17.7 c 704
2008-12-20 08:25:07 C 08 38 41.78 +22 56 06.6 r 703
2008-12-20 08:33:50 C 08 38 44.26 +22 56 01.0 r 703
2008-12-20 08:36:50 C 08 38 44.95 +22 55 58.7 18.1 c 704
2008-12-20 08:55:22 C 08 38 50.32 +22 55 46.2 17.9 c 704
2008-12-20 09:13:53 C 08 38 55.76 +22 55 33.6 17.9 c 704
2008-12-20 16:41:42 C 08 41 14.43 +22 50 20.1 r 379
2008-12-20 16:45:53 C 08 41 15.67 +22 50 17.2 r 379
2008-12-20 17:00:42 C 08 41 20.14 +22 50 06.4 r 379
2008-12-20 17:04:54 C 08 41 21.40 +22 50 03.6 r 379
2008-12-20 17:09:05 C 08 41 22.67 +22 50 00.4 r 379
2008-12-20 17:28:05 C 08 41 28.36 +22 49 46.5 r 379
2008-12-20 22:57:17 C 08 43 15.60 +22 45 28.8 v 204
2008-12-20 23:01:52 C 08 43 17.05 +22 45 25.6 v 204
2008-12-20 23:06:23 C 08 43 18.48 +22 45 22.3 v 204
2008-12-20 23:10:54 C 08 43 19.91 +22 45 19.1 v 204
2008-12-20 23:15:26 C 08 43 21.34 +22 45 15.9 v 204
2008-12-21 02:41:43 C 08 44 27.15 +22 42 45.3 r J27
2008-12-21 02:52:22 C 08 44 30.48 +22 42 37.6 r J27
2008-12-21 03:02:24 C 08 44 33.69 +22 42 29.5 r J27
2008-12-21 08:32:34 C 08 46 24.36 +22 38 11.0 r H45
2008-12-21 08:33:58 C 08 46 24.84 +22 38 10.1 r H45
2008-12-21 08:36:00 C 08 46 25.48 +22 38 08.1 r H45
2008-12-21 08:37:50 C 08 46 26.09 +22 38 06.8 r H45
2008-12-21 08:39:44 C 08 46 26.71 +22 38 05.4 r H45
2008-12-21 08:41:32 C 08 46 27.30 +22 38 03.9 r H45
2008-12-21 23:14:42 C 08 51 35.39 +22 25 11.5 c A53
2008-12-21 23:25:28 C 08 51 39.21 +22 25 01.6 c A53
2008-12-21 23:36:29 C 08 51 43.10 +22 24 52.3 c A53
2008-12-21 23:47:32 C 08 51 46.97 +22 24 42.1 c A53
2008-12-22 18:33:59 C 08 58 54.39 +22 06 02.1 r 379
2008-12-22 18:37:28 C 08 58 55.71 +22 05 58.2 r 379
2008-12-22 18:40:58 C 08 58 57.03 +22 05 54.3 r 379
2008-12-22 18:49:58 C 08 59 00.56 +22 05 44.3 r 379
2008-12-22 18:53:28 C 08 59 01.88 +22 05 40.5 r 379
2008-12-22 18:56:58 C 08 59 03.23 +22 05 36.8 r 379
2008-12-22 19:05:58 C 08 59 06.73 +22 05 26.4 r 379
2008-12-22 19:12:58 C 08 59 09.42 +22 05 18.7 r 379
2008-12-22 19:25:28 C 08 59 14.24 +22 05 04.8 r 379