Asteroid Radar Database
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21374 (1997 WS22)
Classification: AMO [NEO]
H:17.44 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
2014 May Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2025-05-05 00:00 TT from MPO901420 (heliocentric ecliptic J2000)
Element Value Units
e 0.1206585
a 1.2694902 AU
i 23.98006 deg
om 59.19206 deg
w 197.3312 deg
ma 227.01937 deg
n 0.68906476 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
2024-05-21 12:50:00 0.11048 110.3 44.5
2034-05-22 04:06:00 0.14072 140.4 19.2

Link to complete Close-Approach Data on SBDB at JPL