Asteroid Radar Database
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451370 (2011 AK5)
Classification: APO [NEO, PHA]
H:21.48 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
2015 Aug 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 E2024-CC8 (heliocentric ecliptic J2000)
Element Value Units
e 0.2307527
a 1.1876953 AU
i 5.52254 deg
om 316.78057 deg
w 325.68848 deg
ma 265.6238 deg
n 0.76145897 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
2015-03-15 10:43:00 0.29624 295.7 0.1
2015-08-13 19:57:00 0.07088 70.7 14.4
2019-04-07 10:18:00 0.43313 432.3 0.0
2019-12-13 12:59:00 0.46570 464.8 0.0
2024-02-05 02:23:00 0.43185 431.0 0.0
2024-09-22 21:12:00 0.30088 300.3 0.1
2028-04-27 20:07:00 0.10532 105.1 3.6
2028-11-07 19:21:00 0.36856 367.8 0.1
2033-01-08 00:26:00 0.48048 479.5 0.0

Link to complete Close-Approach Data on SBDB at JPL