Small-Body Radar Database

(2010 AL30)
Classification: APO [NEO]
H:27.2 mag, G:0.15

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History of Radar Detections
Year Month Transmitter Receiver Frequency Obs
2010 Jan 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 2019-04-27 00:00 TT from MPO170308 (heliocentric ecliptic J2000)
Element Value Units
e 0.3076365
a 1.0461293 AU
i 3.8306 deg
om 112.36482 deg
w 97.75016 deg
ma 181.61846 deg
n 0.92114082 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
2010-01-13 12:47:00 0.00086 0.9 0.0
2010-11-27 01:23:00 0.32417 323.5 0.0
2011-04-06 10:02:00 0.27817 277.6 0.0
2011-10-16 18:14:00 0.37567 374.9 0.0
2012-06-18 17:19:00 0.21880 218.4 0.0
2012-08-23 14:08:00 0.23388 233.4 0.0
2013-08-12 20:49:00 0.19448 194.1 0.0
2025-01-08 00:45:00 0.13060 130.3 0.0
2025-12-12 17:05:00 0.27070 270.2 0.0
2026-03-15 20:29:00 0.24873 248.2 0.0
2026-10-27 17:29:00 0.38036 379.6 0.0
2027-05-27 00:40:00 0.26235 261.8 0.0
2027-09-12 21:52:00 0.29900 298.4 0.0
2028-08-07 10:44:00 0.07797 77.8 0.0

Link to complete Close-Approach Data on SBDB at JPL