476904 (2008 WK32)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3786348172 ± 2.96e-08
Semi-major axis (a)1.3958148033 AU ± 1.10e-09
Inclination (i)15.45566396° ± 3.74e-06
Long. of Asc. Node (Ω)58.74375621° ± 8.33e-06
Arg. of Perihelion (ω)139.93633884° ± 7.87e-06
Mean Anomaly (M)6.62218226° ± 2.96e-06
Mean Motion (n)0.5976825499°/day ± 7.04e-10
Perihelion dist (q)0.86731072 AU ± 4.13e-08
Aphelion dist (Q)1.92431889 AU ± 4.14e-08
Orbital Period1.64907991 yr ± 1.94e-09
Physical Parameters
H (abs. magnitude)19.12
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.274″
Uncertainty0
Orbit TypeApollo
MOID0.069705 AU
Observations Used275
Radar Obs Used3
Oppositions2
Arc Total2008-2014
First Observation Used2008-11-21
Last Observation Used2024-08-15
Observations (292)
Date Type RA Dec Mag Band Observatory
2008-12-06 04:22:16 C 03 14 16.62 +22 41 19.5 o 291
2008-12-06 04:28:12 C 03 14 16.04 +22 41 23.0 o 291
2008-12-18 20:37:18 C 02 45 28.50 +23 55 25.2 r 493
2008-12-18 20:42:53 C 02 45 28.02 +23 55 26.6 r 493
2008-12-21 05:38:17 C 02 41 07.54 +24 08 30.6 o 291
2008-12-21 05:44:36 C 02 41 07.08 +24 08 31.9 o 291
2008-12-21 05:50:47 C 02 41 06.60 +24 08 33.4 o 291
2009-01-03 00:36:52 C 02 24 47.78 +25 23 16.8 o H55
2009-01-03 00:48:07 C 02 24 47.41 +25 23 20.1 o H55
2009-01-03 00:59:40 C 02 24 46.98 +25 23 23.0 o H55
2009-01-20 04:28:27 C 02 20 52.66 +27 33 09.8 o 291
2009-01-20 05:05:59 C 02 20 53.05 +27 33 23.1 o 291
2009-02-13 03:29:59 C 02 43 00.74 +31 41 59.6 o 291
2009-02-13 03:36:52 C 02 43 01.13 +31 42 02.9 o 291
2009-02-13 03:43:33 C 02 43 01.54 +31 42 06.0 o 291
2009-07-17 10:20:53 C 12 59 22.35 -36 37 43.6 r E12
2009-07-18 10:14:15 C 13 05 07.87 -37 32 00.9 r E12
2011-10-20 06:08:08 C 00 51 25.48 -17 21 45.7 r G96
2011-10-20 06:16:33 C 00 51 24.87 -17 21 45.0 r G96
2011-10-20 06:24:51 C 00 51 24.22 -17 21 44.4 r G96
2011-10-20 06:33:14 C 00 51 23.61 -17 21 43.9 r G96
2011-10-20 06:42:21 C 00 51 22.89 -17 21 42.3 r G96
2011-10-20 06:51:34 C 00 51 22.17 -17 21 41.8 r G96
2011-10-20 07:01:03 C 00 51 21.49 -17 21 40.8 r G96
2011-10-20 07:10:25 C 00 51 20.77 -17 21 39.5 r G96
2013-10-31 10:36:49 C 05 35 09.64 +23 25 04.2 q G96
2013-10-31 10:46:31 C 05 35 09.52 +23 25 09.0 q G96
2013-10-31 10:56:14 C 05 35 09.41 +23 25 13.9 q G96
2013-10-31 11:05:56 C 05 35 09.25 +23 25 19.3 q G96
2013-11-24 07:46:19 C 05 08 13.69 +29 42 34.0 u H21
2013-11-24 07:52:17 C 05 08 13.15 +29 42 38.7 u H21
2013-11-24 07:58:24 C 05 08 12.59 +29 42 43.4 u H21
2013-11-24 08:04:16 C 05 08 12.03 +29 42 48.2 u H21
2013-11-27 12:08:15 C 05 01 01.840 +30 42 56.12 L F51
2013-11-27 12:25:41 C 05 01 00.021 +30 43 09.75 L F51
2013-11-27 13:00:33 C 05 00 56.384 +30 43 37.03 L F51
2013-11-27 13:18:40 C 05 00 54.495 +30 43 51.06 L F51
2013-11-27 21:14:30 C 05 00 07.67 +30 50 02.1 q A13
2013-11-27 21:46:46 C 05 00 04.25 +30 50 29.5 q A13
2013-11-27 22:13:34 C 05 00 01.47 +30 50 50.2 q A13
2013-11-28 11:42:47 C 04 58 37.19 +31 01 33.9 o 926
2013-11-28 12:08:33 C 04 58 34.48 +31 01 53.5 o 926
2013-11-28 12:31:05 C 04 58 32.23 +31 02 11.1 o 926
2013-12-02 13:34:37 C 04 47 48.79 +32 18 54.9 q D29
2013-12-02 13:57:31 C 04 47 45.99 +32 19 12.8 q D29
2013-12-07 23:58:57 C 04 31 28.89 +33 57 36.5 t 130
2013-12-08 00:01:07 C 04 31 28.64 +33 57 37.7 t 130
2013-12-08 00:03:16 C 04 31 28.30 +33 57 39.7 t 130
2013-12-08 00:05:54 C 04 31 27.96 +33 57 41.4 t 130
2013-12-11 01:47:03 C 04 21 31.79 +34 49 20.3 q 204
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-05-24 17:40:00 131670.5106 1 Hz 2380 -1 -1
2014-05-24 18:10:00 92967797.03 4 us 2380 -1 -1
2014-05-25 17:20:00 120665.4177 0.6 Hz 2380 -1 -1
2014-05-25 18:00:00 88486868.27 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)