Field Definitions are Available Here
Collection
string (80)
The name of the Platform Characteristic attribute.
Aqua
/Platforms/Platform/Characteristics/Characteristic/Name
/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:platform/gmi:MI_Platform/eos:additionalAttributeValue/gco:Record/nc:group/nc:variable/@name
Platforms and Instrument Information (ECHO)