Asteroid Radar Database
  Return to list of asteroid radar detections  

341843 (2008 EV5)
Classification: ATE [NEO, PHA]
H:20 mag, G:0.15
Wavefront file Reference: 2011Icar..212..649B

  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 Dec Goldstone Goldstone 8560 [G]
2008 Dec Arecibo Arecibo 2380 [A]
2008 Dec Arecibo Very Long Baseline Array 2380 [A-VLBA]

Radar-Based Physical Properties
name symbol value units uncertainty reference notes
number of components N 1 - single 2011Icar..212..649B
morphological type spheroid 2011Icar..212..649B Equator-aligned ridge broken by a ~150 m concavity.
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 0.4 km 0.05 2011Icar..212..649B
extent along principal axis x Ex 0.42 km 0.05 2011Icar..212..649B
extent along principal axis y Ey 0.41 km 0.05 2011Icar..212..649B
extent along principal axis z Ez 0.39 km 0.05 2011Icar..212..649B
DEEVE extent along x Dx 0.415 km 0.05 2011Icar..212..649B
DEEVE extent along y Dy 0.41 km 0.05 2011Icar..212..649B
DEEVE extent along z Dz 0.385 km 0.05 2011Icar..212..649B
surface area A km2 2011Icar..212..649B
volume V 0.035 km3 0.014 2011Icar..212..649B
spin period Pspin 3.726 h 0.001 2011Icar..212..649B
spin rate ω deg/day
YORP acceleration ω̇ deg/day2
spin axis ecliptic longitude λ 180 deg 10 2011Icar..212..649B Uncertainty value is the radius of the allowed region; the actually uncertainty in lambda is 180º, since the allowed region overlaps a pole.
spin axis ecliptic latitude β -84 deg 10 2011Icar..212..649B
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 0.29 0.09 2011Icar..212..649B
radar albedo SC σ̂SC
radar albedo σ̂T
circular polarization ratio μC 0.39 0.03 2011Icar..212..649B

Orbital Elements at Epoch 2022-01-21 00:00 TT from MPO460383 (heliocentric ecliptic J2000)
Element Value Units
e 0.0834673
a 0.9581978 AU
i 7.43702 deg
om 93.36995 deg
w 235.00607 deg
ma 94.66982 deg
n 1.05080311 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
2022-12-27 03:15:00 0.42365 422.8 0.1
2023-12-20 06:52:00 0.04226 42.2 277.1
2024-07-20 18:32:00 0.14104 140.8 4.3
2025-04-27 00:36:00 0.17461 174.3 2.0

Link to complete Close-Approach Data on SBDB at JPL