Minor Planet Radar Database
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(2018 XS4)
Classification: APO [NEO]
H:25.2 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2018 Dec Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2020-05-31 00:00 TT from MPO467280 (heliocentric ecliptic J2000)
Element Value Units
e 0.5950362
a 2.4462374 AU
i 6.39221 deg
om 266.10238 deg
w 173.77485 deg
ma 137.88726 deg
n 0.25760611 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
2018-12-16 07:32:00 0.00710 7.1 2037.6

Link to complete Close-Approach Data on SBDB at JPL