Asteroid Radar Database
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(2017 QL33)
Classification: APO [NEO, PHA]
H:21.34 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2017 Dec Arecibo Arecibo 2380 [A]
2017 Dec 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 2024-10-17 00:00 TT from E2023-R01 (heliocentric ecliptic J2000)
Element Value Units
e 0.4802464
a 1.8378406 AU
i 1.71332 deg
om 357.19225 deg
w 71.8342 deg
ma 270.93986 deg
n 0.39558727 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
2017-12-30 05:12:00 0.03404 34.0 557.9
2022-12-03 12:33:00 0.04102 40.9 294.8
2027-11-02 16:17:00 0.02079 20.8 2955.0
2032-10-13 18:26:00 0.13770 137.4 4.5

Link to complete Close-Approach Data on SBDB at JPL