Asteroid Radar Database
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481817 (2008 UL90)
Classification:  [NEO, PHA]
H:18.61 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
2016 Dec Goldstone Goldstone 8560 [G]
2016 Dec Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
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Orbital Elements at Epoch 2024-03-31 00:00 TT from E2023-Y82 (heliocentric ecliptic J2000)
Element Value Units
e 0.3799207
a 0.6950031 AU
i 24.30978 deg
om 81.12907 deg
w 183.66247 deg
ma 22.19187 deg
n 1.70107683 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
2016-12-12 14:53:00 0.03914 39.1 785.8
2020-12-12 14:21:00 0.32506 324.4 0.5
2023-12-18 13:32:00 0.20931 208.9 2.4
2027-12-12 11:57:00 0.08094 80.8 64.1
2030-12-15 23:40:00 0.44973 448.8 0.2
2031-12-14 15:18:00 0.38057 379.8 0.3

Link to complete Close-Approach Data on SBDB at JPL