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
2008-12-30 07:59:23 C 11 03 22.09 +13 24 04.8 r H45
2008-12-30 08:00:55 C 11 03 23.74 +13 23 55.5 r H45
2008-12-30 08:01:50 C 11 03 24.70 +13 23 50.3 r H45
2008-12-30 08:02:29 C 11 03 25.39 +13 23 46.2 r H45
2008-12-30 08:03:21 C 11 03 26.31 +13 23 41.0 r H45
2008-12-30 08:04:13 C 11 03 27.25 +13 23 35.8 r H45
2008-12-30 08:05:07 C 11 03 28.19 +13 23 30.6 r H45
2008-12-30 08:05:59 C 11 03 29.11 +13 23 25.4 r H45
2008-12-31 01:29:19 C 11 23 03.16 +11 30 48.4 v 160
2008-12-31 01:32:15 C 11 23 06.53 +11 30 28.2 v 160
2008-12-31 01:34:56 C 11 23 09.63 +11 30 10.0 v 160
2008-12-31 01:37:44 C 11 23 12.84 +11 29 50.9 v 160
2008-12-31 01:40:28 C 11 23 16.02 +11 29 31.8 v 160
2008-12-31 18:34:09 C 11 43 40.51 +09 25 32.9 r 379
2008-12-31 18:35:59 C 11 43 42.75 +09 25 18.9 r 379
2008-12-31 18:41:18 C 11 43 49.23 +09 24 37.3 r 379
2008-12-31 18:52:09 C 11 44 02.50 +09 23 13.3 r 379
2008-12-31 19:01:10 C 11 44 13.47 +09 22 03.1 r 379
2009-01-01 18:26:09 C 12 14 30.10 +06 07 09.1 r 379
2009-01-01 18:28:48 C 12 14 33.59 +06 06 45.9 r 379
2009-01-01 18:31:28 C 12 14 37.06 +06 06 22.4 r 379
2009-01-01 18:43:30 C 12 14 52.72 +06 04 37.2 r 379
2009-01-03 19:32:50 C 13 21 14.50 -01 27 11.7 r 379
2009-01-03 19:35:30 C 13 21 18.05 -01 27 36.2 r 379
2009-01-03 19:47:28 C 13 21 33.91 -01 29 27.6 r 379
2009-01-03 19:54:09 C 13 21 42.75 -01 30 28.7 r 379
2009-01-03 20:08:49 C 13 22 02.16 -01 32 45.5 r 379
2009-08-13 06:05:13 C 22 19 08.28 -10 09 58.8 o H55
2009-08-13 06:23:41 C 22 19 06.91 -10 10 05.7 o H55
2009-08-13 06:42:08 C 22 19 05.51 -10 10 12.5 o H55
2017-11-14 06:30:14 C 03 23 34.34 +20 35 52.3 U G96
2017-11-14 06:36:24 C 03 23 33.76 +20 35 50.2 U G96
2017-11-14 06:42:33 C 03 23 33.28 +20 35 48.6 U G96
2017-11-14 06:48:42 C 03 23 32.66 +20 35 47.3 U G96
2017-11-17 11:52:06 C 03 16 46.829 +20 12 04.29 L F51
2017-11-17 12:09:27 C 03 16 45.234 +20 11 58.70 L F51
2017-11-17 12:44:15 C 03 16 42.042 +20 11 47.09 L F51
2017-12-14 04:41:21 C 02 20 37.83 +15 58 57.2 U G96
2017-12-14 04:48:48 C 02 20 37.32 +15 58 54.0 U G96
2017-12-14 04:56:15 C 02 20 36.74 +15 58 51.3 U G96
2017-12-14 05:03:46 C 02 20 36.19 +15 58 47.9 U G96
2017-12-17 03:07:31 C 02 15 50.84 +15 32 25.6 u H21
2017-12-17 03:21:33 C 02 15 49.90 +15 32 19.9 u H21
2017-12-17 03:41:11 C 02 15 48.55 +15 32 12.4 u H21
2018-06-19 09:34:06 C 22 37 09.31 -10 17 47.5 U G96
2018-06-19 09:41:43 C 22 37 08.53 -10 17 51.5 U G96
2018-06-19 09:49:20 C 22 37 07.73 -10 17 55.6 U G96
2018-06-19 09:56:58 C 22 37 06.94 -10 17 58.9 U G96
2018-08-08 08:44:27 C 20 24 30.749 -19 34 27.37 U F51
2018-08-08 08:58:26 C 20 24 29.676 -19 34 30.32 U F51