How to add a correct short_name for CMR?

[lwk1542]

I need to search other dataset （OLCI L3M） from CMR. where can i obtain these key informations to add in SEARCH_CMR？
SEARCH_CMR = {'SeaWiFS': 'SEAWIFS',
'MODIS-Aqua': 'MODISA',
'MODIS-Terra': 'MODIST',
'OCTS': 'OCTS',
'CZCS': 'CZCS',
'VIIRSN': 'VIIRSN',
'VIIRSJ1': 'VIIRSJ1',
'VIIRSJ2': 'VIIRSJ2',
'GOCI': 'GOCI'}