Asteroid Radar Database
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326290 Akhenaten (1998 HE3)
Classification: ATE [NEO, PHA]
H:21.83 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
2012 May Arecibo Arecibo 2380 [A]
2012 May 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 MPO697646 (heliocentric ecliptic J2000)
Element Value Units
e 0.4402332
a 0.8789298 AU
i 3.37876 deg
om 53.44326 deg
w 309.34752 deg
ma 66.0042 deg
n 1.19611463 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
2016-02-24 05:51:00 0.22500 224.5 0.2
2016-08-23 23:49:00 0.49421 493.2 0.0
2017-05-01 19:46:00 0.29752 296.9 0.1
2020-02-17 07:02:00 0.44585 445.0 0.0
2020-11-03 04:35:00 0.46299 462.1 0.0
2021-04-03 13:30:00 0.26352 263.0 0.1
2021-07-14 13:04:00 0.40012 399.3 0.0
2025-02-03 10:26:00 0.12347 123.2 1.7
2026-05-10 12:29:00 0.07355 73.4 10.0
2030-02-15 10:44:00 0.19261 192.2 0.3
2031-05-04 19:39:00 0.23426 233.8 0.2

Link to complete Close-Approach Data on SBDB at JPL