Minor Planet Radar Database
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(2016 GW221)
Classification: ATE [NEO]
H:24.7 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
2019 Apr Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2019-04-27 00:00 TT from MPO466816 (heliocentric ecliptic J2000)
Element Value Units
e 0.2686863
a 0.8264109 AU
i 3.69748 deg
om 33.627 deg
w 8.23456 deg
ma 166.5301 deg
n 1.3119281 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
2010-05-25 02:40:00 0.03398 33.9 19.0
2013-05-11 09:10:00 0.04006 40.0 10.8
2016-04-24 07:54:00 0.03997 39.9 10.9
2019-04-10 14:10:00 0.02668 26.6 43.2
2022-04-02 17:45:00 0.02498 24.9 54.0
2025-03-28 16:23:00 0.07543 75.3 1.2
2025-08-11 00:21:00 0.28303 282.5 0.0
2028-03-28 15:57:00 0.15492 154.6 0.1
2028-08-26 22:56:00 0.31679 316.2 0.0

Link to complete Close-Approach Data on SBDB at JPL