Minor Planet Radar Database
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490581 (2009 WZ104)
Classification: ATE [NEO, PHA]
H:20 mag, G:0.15

  MPC page for this object   |  JPL SBDB page for this object   |  NEODyS-2 page for this object   |  ESA SSA page for this object  

History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2013 Dec Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO434808 (heliocentric ecliptic J2000)
Element Value Units
e 0.1927142
a 0.8553149 AU
i 9.83498 deg
om 263.27294 deg
w 10.54321 deg
ma 99.58784 deg
n 1.24599123 deg/d

Link to complete orbital information at Minor Planet Center

Earth Close-Approach Data (+/- 10 years)
date nominal distance RTT SNR/run at Arecibo
2009-12-04 19:22:00 0.05031 50.2 157.9
2010-04-01 05:33:00 0.25242 251.9 0.6
2013-09-08 22:55:00 0.28137 280.8 0.4
2014-01-15 04:26:00 0.13593 135.7 5.0
2017-07-23 18:40:00 0.32504 324.4 0.2
2018-01-19 23:14:00 0.36432 363.6 0.2
2020-12-04 00:42:00 0.48075 479.8 0.1
2021-06-16 21:59:00 0.32442 323.8 0.2
2024-11-27 13:43:00 0.21956 219.1 0.9
2025-05-09 18:08:00 0.29730 296.7 0.3
2028-12-14 02:15:00 0.03196 31.9 747.8

Link to complete Close-Approach Data on SBDB at JPL