Asteroid Radar Database
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468468 (2004 KH17)
Classification: ATE [NEO, PHA]
H:21.98 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2013 Jun 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 2024-10-17 00:00 TT from MPO700329 (heliocentric ecliptic J2000)
Element Value Units
e 0.4982319
a 0.712142 AU
i 22.12894 deg
om 79.1238 deg
w 340.72192 deg
ma 176.07878 deg
n 1.64003914 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
2016-06-02 00:18:00 0.11362 113.4 3.2
2019-05-31 21:30:00 0.12981 129.6 2.0
2022-05-29 15:57:00 0.14537 145.1 1.4
2025-05-27 07:16:00 0.16068 160.4 1.0
2028-05-24 20:05:00 0.17592 175.6 0.7
2031-05-23 06:14:00 0.19142 191.0 0.5
2034-05-20 11:32:00 0.20822 207.8 0.4

Link to complete Close-Approach Data on SBDB at JPL