Instrument data naming convention
Filenames for instrument data conforms to the AusCover naming convention. The standard form of this convention is:

<sensor category code><instument code><product code>_<longitude>e<latitude>s_<yyyymmdd>_<processing stage code>_<additional dataset specific tags>

The following table describes the meaning of the unique codes used for this product.

Data Naming Element		|Possible Code(s)	|Descriptor
sensor category			|si			|spectroradiometer instrument
instrument			|a1			|ASD - fieldspec full range
product				|re     		|reflectance
product				|ir			|irradiance
product				|rw			|raw
product				|rd			|radiance
processing stage		|aa0			|raw instrument data
projection			|g0			|Geographic Coordinates, in latitudes and longitudes  
target				|tacwht 		|auscover standard white target
target				|tacblk 		|auscover standard black target
target				|tacgry 		|auscover standard grey target
target				|tirrad 		|irradiance
target				|tirshd 		|shaded irradiance
target				|tspect 		|spectralon panel
target				|tgrass 		|grass
target				|tgravl 		|gravel
target				|tsoils 		|soil (see shapefile/KMZ file for details of colour etc)
target				|tveget 		|vegetation (see shapefile/KMZ file for details)
target				|troads 		|road/track includes ashphalt areas (see shapefile/KMZ file for specific details)
target				|tother			|other unspecified (see shapefile/KMZ file for details)
instrument serial number	|i<integer>		|serial number