Asteroid Radar Database
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5189 (1990 UQ)
Classification: APO [NEO, PHA]
H:17.91 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
1992 May Goldstone Goldstone 8560 [G]
2021 May Goldstone Goldstone 8560 [G]

Radar-Based Physical Properties
name symbol value units uncertainty reference notes
number of components N
morphological type
spectrum-based or image-based dimensions
maximum range extent Rmax km
minimum range extent Rmin km
maximum Doppler bandwidth Bmax Hz
minimum Doppler bandwidth Bmin Hz
effective diameter Deff km
quality code for size Q
shape-based dimensions
equivalent diameter Dequ km
extent along principal axis x Ex km
extent along principal axis y Ey km
extent along principal axis z Ez km
DEEVE extent along x Dx km
DEEVE extent along y Dy km
DEEVE extent along z Dz km
surface area A km2
volume V km3
spin period Pspin h
spin rate ω deg/day
YORP acceleration ω̇ deg/day2
spin axis ecliptic longitude λ deg
spin axis ecliptic latitude β deg
radar cross-section OC σOC km2
radar cross-section SC σSC km2
radar cross-section σT km2
projected area Aproj km2
radar albedo OC σ̂OC
radar albedo SC σ̂SC
radar albedo σ̂T
circular polarization ratio μC 0.37 0.05 2008Icar..198..294B Date: 1992T

Orbital Elements at Epoch 2022-01-21 00:00 TT from MPO660785 (heliocentric ecliptic J2000)
Element Value Units
e 0.4782007
a 1.551672 AU
i 3.57903 deg
om 135.07045 deg
w 159.95244 deg
ma 107.73708 deg
n 0.50992254 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
2015-10-20 16:34:00 0.46403 463.1 0.3
2017-09-26 18:07:00 0.06102 60.9 368.4
2019-07-18 18:22:00 0.20740 207.0 5.2
2021-05-06 15:11:00 0.06824 68.1 250.3
2023-04-13 16:50:00 0.44603 445.1 0.4

Link to complete Close-Approach Data on SBDB at JPL