Minor Planet Radar Database
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(2011 UB)
Classification: AMO [NEO]
H:27.5 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2011 Oct Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2020-05-31 00:00 TT from MPO227506 (heliocentric ecliptic J2000)
Element Value Units
e 0.4773768
a 1.9288197 AU
i 1.88512 deg
om 23.09699 deg
w 8.61962 deg
ma 77.58067 deg
n 0.3679312 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
2011-10-17 01:26:00 0.01289 12.9 76.3
2019-11-21 13:38:00 0.08803 87.9 0.1
2027-12-10 11:53:00 0.30360 303.0 0.0

Link to complete Close-Approach Data on SBDB at JPL