Asteroid Radar Database
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6239 Minos (1989 QF)
Classification: APO [NEO, PHA]
H:18.61 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2004 Feb Goldstone Goldstone 8560 [G]
2004 Feb Arecibo Arecibo 2380 [A]

Radar-Based Physical Properties
name symbol value units uncertainty reference notes
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 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
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 0.23 0.04 2008Icar..198..294B Date: 2004T

Orbital Elements at Epoch 2024-03-31 00:00 TT from MPO776040 (heliocentric ecliptic J2000)
Element Value Units
e 0.4126742
a 1.1508974 AU
i 3.94051 deg
om 344.55132 deg
w 239.74082 deg
ma 64.86384 deg
n 0.79826881 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
2015-06-03 17:40:00 0.31910 318.5 0.5
2015-09-12 03:28:00 0.40694 406.1 0.2
2019-12-31 17:00:00 0.42426 423.4 0.2
2020-04-14 11:00:00 0.31855 317.9 0.5
2025-02-05 09:34:00 0.09906 98.9 30.0
2026-08-28 16:45:00 0.28009 279.5 0.8
2030-01-16 14:48:00 0.30918 308.6 0.6
2031-08-09 13:36:00 0.12937 129.1 11.8

Link to complete Close-Approach Data on SBDB at JPL