Asteroid Radar Database
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329437 (2002 OA22)
Classification: ATE [NEO, PHA]
H:19.41 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
2013 Sep Arecibo Arecibo 2380 [A]
2013 Sep Goldstone Goldstone 8560 [G]

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 2024-03-31 00:00 TT from E2023-R01 (heliocentric ecliptic J2000)
Element Value Units
e 0.2431789
a 0.9355695 AU
i 6.88547 deg
om 174.04329 deg
w 318.65112 deg
ma 117.8059 deg
n 1.08915579 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
2021-06-14 13:08:00 0.32158 320.9 0.2
2022-03-27 02:09:00 0.23346 233.0 0.8
2022-08-11 17:03:00 0.16931 169.0 2.3
2022-12-18 16:37:00 0.25638 255.9 0.5
2023-09-26 15:59:00 0.29745 296.9 0.3
2031-06-02 05:31:00 0.12085 120.6 7.5
2032-02-08 19:32:00 0.28322 282.7 0.4
2032-10-02 01:06:00 0.03571 35.6 505.5

Link to complete Close-Approach Data on SBDB at JPL