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
2002-07-18 06:16:30 C 21 06 05.69 -17 28 58.7 o 644
2002-07-18 07:53:50 C 21 05 53.26 -17 29 44.4 o 644
2002-07-18 08:15:07 C 21 05 50.51 -17 29 54.7 o 644
2002-07-18 09:30:17 C 21 05 40.88 -17 30 29.0 o 644
2002-07-18 09:50:16 C 21 05 38.29 -17 30 38.6 o 644
2002-08-08 05:25:26 C 20 16 28.44 -20 05 03.4 o 644
2002-08-08 05:55:58 C 20 16 26.33 -20 05 08.6 o 644
2002-08-08 06:26:39 C 20 16 24.04 -20 05 13.9 o 644
2008-11-22 10:01:43 C 07 10 26.54 +24 43 55.6 o 691
2008-11-22 10:27:12 C 07 10 28.29 +24 43 54.7 o 691
2008-11-22 10:52:41 C 07 10 30.01 +24 43 53.5 o 691
2008-11-22 11:48:24 C 07 10 33.87 +24 43 51.7 o 291
2008-11-22 11:54:36 C 07 10 34.30 +24 43 51.4 o 291
2008-11-22 12:00:32 C 07 10 34.71 +24 43 53.0 o 291
2008-11-24 11:44:31 C 07 14 08.66 +24 42 11.0 o 291
2008-11-24 11:50:31 C 07 14 09.09 +24 42 10.7 o 291
2008-11-25 22:56:44 C 07 16 52.42 +24 40 41.0 r J95
2008-11-25 23:07:31 C 07 16 53.17 +24 40 40.3 r J95
2008-11-25 23:18:53 C 07 16 54.05 +24 40 39.6 r J95
2008-11-28 01:32:02 C 07 20 54.22 +24 38 32.8 r J95
2008-11-28 01:38:13 C 07 20 54.66 +24 38 32.7 r J95
2008-11-28 01:44:21 C 07 20 55.18 +24 38 32.0 r J95
2008-11-29 06:28:48 C 07 23 18.57 +24 37 13.0 o H55
2008-11-29 06:35:44 C 07 23 19.12 +24 37 12.6 o H55
2008-11-29 06:42:41 C 07 23 19.67 +24 37 12.4 o H55
2008-11-29 06:50:25 C 07 23 20.28 +24 37 12.1 o H55
2008-11-29 07:04:07 C 07 23 21.39 +24 37 12.0 o H55
2008-11-30 09:53:28 C 07 25 38.74 +24 35 50.7 r G96
2008-11-30 10:03:13 C 07 25 39.54 +24 35 50.3 r G96
2008-11-30 10:11:09 C 07 25 40.18 +24 35 49.7 r G96
2008-11-30 10:19:18 C 07 25 40.87 +24 35 49.4 r G96
2008-12-01 07:47:57 C 07 27 35.26 +24 34 35.9 r 448
2008-12-01 08:09:02 C 07 27 37.02 +24 34 35.4 r 448
2008-12-01 08:31:46 C 07 27 38.88 +24 34 33.9 r 448
2008-12-02 11:51:07 C 07 30 07.23 +24 32 54.3 o 291
2008-12-02 11:57:17 C 07 30 07.77 +24 32 53.9 o 291
2008-12-02 12:04:26 C 07 30 08.39 +24 32 53.3 o 291
2008-12-04 12:16:43 C 07 34 47.05 +24 29 30.2 o 291
2008-12-04 12:31:54 C 07 34 48.50 +24 29 28.8 o 291
2008-12-07 07:51:13 C 07 42 00.33 +24 23 30.6 r 448
2008-12-07 08:05:32 C 07 42 01.83 +24 23 29.6 r 448
2008-12-07 08:20:25 C 07 42 03.40 +24 23 28.9 r 448
2008-12-10 07:37:50 C 07 50 49.69 +24 14 46.3 r 448
2008-12-10 07:49:43 C 07 50 51.12 +24 14 45.5 r 448
2008-12-10 08:01:36 C 07 50 52.59 +24 14 43.4 r 448
2008-12-11 08:10:30 C 07 54 11.76 +24 10 57.3 r H36
2008-12-11 08:12:50 C 07 54 12.08 +24 10 56.8 r H36
2008-12-11 08:17:28 C 07 54 12.71 +24 10 55.6 r H36
2008-12-18 16:53:04 C 08 27 40.38 +23 19 04.9 r 379
2008-12-18 17:07:53 C 08 27 43.96 +23 18 57.1 r 379