Asteroid Radar Database
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(2021 DE)
Classification: APO [NEO]
H:24.37 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2021 Feb 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 MPO606207 (heliocentric ecliptic J2000)
Element Value Units
e 0.7593777
a 1.3890341 AU
i 4.73883 deg
om 337.2751 deg
w 303.95463 deg
ma 290.87271 deg
n 0.60205295 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
2014-11-11 05:41:00 0.14006 139.8 0.2
2019-10-26 06:54:00 0.45584 454.9 0.0
2021-02-27 23:34:00 0.01080 10.8 1114.3
2026-02-07 06:25:00 0.46174 460.8 0.0
2032-11-16 09:53:00 0.25762 257.1 0.0

Link to complete Close-Approach Data on SBDB at JPL