Asteroid Radar Database
  Return to list of asteroid radar detections  

144411 (2004 EW9)
Classification: APO [NEO]
H:16.51 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
2012 Jul Arecibo Arecibo 2380 [A]
2012 Jul Goldstone Goldstone 8560 [G]
2020 Jun Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
                 [edit]

Orbital Elements at Epoch 2021-07-05 00:00 TT from MPO614063 (heliocentric ecliptic J2000)
Element Value Units
e 0.5335762
a 1.9176202 AU
i 8.79108 deg
om 288.82527 deg
w 8.1818 deg
ma 134.42876 deg
n 0.37115916 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
2012-07-16 21:37:00 0.12018 119.9 239.3
2020-06-09 21:16:00 0.09041 90.2 643.1
2028-05-18 17:45:00 0.19713 196.7 42.7

Link to complete Close-Approach Data on SBDB at JPL