SAM
Short axis mode
SDO
Scattered disc object
SFD
Size-frequency distribution
SHOE
Shadow-hiding opposition effect
SPC
Short-period comet/Stereo-photoclinometry
SPG
Stereo-photogrammetry
SPH
Smooth particle hydrodynamics
SRP
Solar radiation pressure
STP
Standard temperature and pressure
SWAN
Solar wind anisotropy instrument
TNO
Trans-Neptunian object
TNT
Trinitrotoluene
VCDT
Vienna-Canyon Diablo Troilite
VDF
Velocity distribution function
VSMOW
Vienna Standard Mean Ocean Water
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Acronyms