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
2010-11-30 14:14:22 S 10 52 03.396 +19 23 27.64 L C51
2010-11-30 15:49:32 S 10 52 40.778 +19 12 40.43 L C51
2010-11-30 17:24:53 S 10 53 18.206 +19 01 51.10 L C51
2010-11-30 20:35:24 S 10 54 33.084 +18 40 05.95 L C51
2011-07-26 05:08:29 C 20 47 00.28 +13 23 49.5 o H21
2011-07-26 05:33:42 C 20 46 58.02 +13 23 50.9 o H21
2011-07-26 05:58:15 C 20 46 55.86 +13 23 51.8 o H21
2015-11-11 09:24:06 S 09 36 25.399 +28 10 44.44 L C51
2015-11-11 23:34:00 S 09 40 10.591 +27 29 44.02 L C51
2015-11-12 01:08:26 S 09 40 35.568 +27 25 03.72 L C51
2015-11-12 15:18:32 S 09 44 21.593 +26 42 46.66 L C51
2015-11-13 12:42:52 C 09 50 05.55 +25 36 33.5 o 291
2015-11-13 12:49:04 C 09 50 07.18 +25 36 13.8 o 291
2016-07-12 07:13:15 C 21 31 43.25 +13 59 48.5 u H21
2016-07-12 07:46:59 C 21 31 40.87 +14 00 01.6 u H21
2016-07-12 08:12:15 C 21 31 39.06 +14 00 11.3 u H21
2016-07-12 08:29:46 C 21 31 37.82 +14 00 17.7 u H21
2020-10-18 14:11:58 C 08 17 48.669 +34 10 39.71 U F51
2020-10-18 14:39:52 C 08 17 54.585 +34 10 02.78 U F51
2020-10-18 14:53:50 C 08 17 57.544 +34 09 44.58 U F51
2024-07-06 00:02:26 C 12 46 07.140 -10 38 55.30 V 807
2024-07-06 00:10:23 C 12 46 09.470 -10 38 55.80 V 807
2024-07-06 00:18:19 C 12 46 11.760 -10 38 56.10 V 807
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)