Field Definitions are Available Here
Collection
string (80)
The unique platform name. (e.g. GOES-8).
AQUA
/Platforms/Platform/ShortName
/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:platform/gmi:MI_Platform/gmi:identifier/gmd:MD_Identifier/gmd:code/gco:CharacterString
Platforms and Instrument Information (ECHO)