Asteroid Radar Database
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137032 (1998 UO1)
Classification: APO [NEO]
H:16.55 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
2008 Sep Arecibo Arecibo 2380 [A]
2008 Sep Goldstone Goldstone 8560 [G]
2010 Sep Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
                 [edit]
name symbol value units uncertainty reference notes
morphology
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
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
reflectivity
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

Orbital Elements at Epoch 2021-07-05 00:00 TT from MPO600179 (heliocentric ecliptic J2000)
Element Value Units
e 0.7631913
a 1.5954768 AU
i 25.49748 deg
om 358.44795 deg
w 252.48618 deg
ma 143.5373 deg
n 0.48906698 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
2012-10-04 13:41:00 0.15451 154.2 11.8
2014-10-09 05:21:00 0.24091 240.4 2.5
2016-10-12 19:12:00 0.32451 323.9 0.9
2018-10-17 13:01:00 0.41013 409.3 0.4
2020-10-21 08:43:00 0.49664 495.6 0.2

Link to complete Close-Approach Data on SBDB at JPL