469896 (2005 WC1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4865683934 ± 8.89e-08
Semi-major axis (a)1.4005055739 AU ± 3.93e-09
Inclination (i)19.98103491° ± 1.11e-05
Long. of Asc. Node (Ω)264.93900806° ± 1.54e-06
Arg. of Perihelion (ω)256.81056665° ± 1.71e-05
Mean Anomaly (M)340.33979297° ± 2.06e-05
Mean Motion (n)0.5946823018°/day ± 2.50e-09
Perihelion dist (q)0.71906383 AU ± 1.24e-07
Aphelion dist (Q)2.08194732 AU ± 1.25e-07
Orbital Period1.65739972 yr ± 6.98e-09
Physical Parameters
H (abs. magnitude)20.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.449″
Uncertainty0
Orbit TypeApollo
MOID0.014309 AU
Observations Used211
Radar Obs Used4
Oppositions1
Arc Total2005-2024
First Observation Used2005-11-21
Last Observation Used2024-07-06
Observations (223)
Date Type RA Dec Mag Band Observatory
2005-12-13 08:23:02 C 13 30 15.85 +48 14 46.1 r 918
2005-12-13 08:25:21 C 13 30 21.79 +48 12 59.3 r 918
2005-12-13 08:27:40 C 13 30 27.84 +48 11 09.4 r 918
2005-12-13 08:29:59 C 13 30 33.82 +48 09 21.2 r 918
2005-12-13 08:32:15 C 13 30 39.74 +48 07 33.6 r 918
2005-12-13 08:34:33 C 13 30 45.66 +48 05 46.1 r 918
2005-12-13 08:36:50 C 13 30 51.66 +48 03 57.1 r 918
2005-12-13 08:39:10 C 13 30 57.69 +48 02 06.9 r 918
2005-12-13 08:41:29 C 13 31 03.69 +48 00 17.8 r 918
2005-12-13 08:43:47 C 13 31 09.51 +47 58 29.4 r 918
2005-12-13 08:46:07 C 13 31 15.51 +47 56 39.8 r 918
2005-12-13 08:48:25 C 13 31 21.53 +47 54 52.1 r 918
2005-12-13 08:50:42 C 13 31 27.45 +47 53 02.1 r 918
2005-12-13 08:53:00 C 13 31 33.39 +47 51 12.9 r 918
2005-12-13 08:55:20 C 13 31 39.34 +47 49 22.5 r 918
2005-12-13 08:57:38 C 13 31 45.21 +47 47 33.6 r 918
2005-12-13 09:00:43 C 13 31 53.06 +47 45 07.3 r 918
2005-12-13 09:03:16 C 13 31 59.63 +47 43 06.2 r 918
2005-12-13 09:05:55 C 13 32 06.43 +47 41 00.2 r 918
2005-12-13 09:08:45 C 13 32 13.59 +47 38 44.8 r 918
2005-12-13 09:11:20 C 13 32 20.28 +47 36 40.2 r 918
2005-12-13 09:33:06 C 13 33 15.59 +47 19 16.4 r 918
2005-12-13 09:35:22 C 13 33 21.30 +47 17 28.2 r 918
2005-12-13 09:37:37 C 13 33 26.94 +47 15 38.8 r 918
2005-12-13 09:39:55 C 13 33 32.72 +47 13 48.5 r 918
2005-12-13 09:42:12 C 13 33 38.46 +47 11 58.5 r 918
2005-12-13 09:44:28 C 13 33 44.21 +47 10 08.3 r 918
2005-12-13 09:46:46 C 13 33 49.95 +47 08 17.5 r 918
2005-12-13 09:49:07 C 13 33 55.87 +47 06 23.9 r 918
2005-12-13 09:49:34 C 13 34 01.89 +47 05 43.7 r G77
2005-12-13 09:51:25 C 13 34 01.62 +47 04 32.6 r 918
2005-12-13 09:53:41 C 13 34 07.36 +47 02 41.4 r 918
2005-12-13 09:56:04 C 13 34 13.35 +47 00 45.6 r 918
2005-12-13 09:56:57 C 13 34 20.48 +46 59 47.2 r G77
2005-12-13 09:58:20 C 13 34 19.00 +46 58 55.6 r 918
2005-12-13 10:00:38 C 13 34 24.72 +46 57 04.5 r 918
2005-12-13 10:02:57 C 13 34 30.52 +46 55 11.5 r 918
2005-12-13 10:05:14 C 13 34 36.25 +46 53 19.7 r 918
2005-12-13 10:07:32 C 13 34 41.96 +46 51 27.9 r 918
2005-12-13 10:10:41 C 13 34 55.13 +46 48 39.6 r G77
2005-12-13 10:20:21 C 13 35 19.63 +46 40 45.3 r G77
2005-12-13 10:36:46 C 13 36 00.56 +46 27 22.4 r G77
2008-10-21 07:57:30 C 21 50 02.177 +21 47 21.18 o 568
2008-10-22 08:31:03 C 21 49 46.267 +21 29 53.06 o 568
2010-11-01 10:21:44 C 07 17 29.35 +49 43 44.1 o 691
2010-11-01 10:26:43 C 07 17 30.25 +49 43 41.5 o 691
2010-11-01 10:32:04 C 07 17 31.45 +49 43 40.7 o 691
2010-11-28 20:57:38 S 10 35 56.443 +23 50 28.03 L C51
2010-11-30 09:28:30 S 10 50 11.186 +19 55 36.91 L C51
2010-11-30 12:39:01 S 10 51 25.937 +19 34 13.33 L C51
Radar Observations (9)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2005-12-14 13:00:00 -6206.102 0.5 Hz 2380 -1 -1
2005-12-14 14:15:00 -15634.7046 1 Hz 2380 -1 -1
2005-12-14 14:44:00 20198941.39 1 us 2380 -1 -1
2005-12-14 14:44:00 -19261.7405 1 Hz 2380 -1 -1
2005-12-14.541667 -620610 50 Hz 2380 251 251
2005-12-14.593750 -1563470 100 Hz 2380 251 251
2005-12-14.613889 2019894139 1000 us 2380 251 251
2005-12-15 13:30:00 -463428.4 1 Hz 8560 -14 -14
2005-12-15.562500 -46342840 100 Hz 8560 253 253
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)