Asteroid Radar Database
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(2017 HK1)
Classification: ATE [NEO]
H:25.1 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2017 May 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 2024-03-31 00:00 TT from MPO419559 (heliocentric ecliptic J2000)
Element Value Units
e 0.1470696
a 0.9091224 AU
i 1.51053 deg
om 141.12365 deg
w 258.67691 deg
ma 173.73055 deg
n 1.13702644 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
2017-05-05 15:40:00 0.04329 43.2 6.8
2023-03-19 21:47:00 0.31846 317.8 0.0
2023-10-22 21:29:00 0.21889 218.5 0.0
2024-06-01 08:19:00 0.33845 337.8 0.0
2030-05-06 09:22:00 0.04232 42.2 7.3

Link to complete Close-Approach Data on SBDB at JPL