Pay particular attention to the NCI Data Access Groups step of the guide. Joining these NCI projects allows you to have access to DEA's satellite datasets and derived products.
At minimum, we recommend joining:
wd8 (to use the Virtual Desktop Intrastructure)
xu18 (to use the latest Geoscience Australia Landsat Analysis Ready Data Collection 3)
ka08 (to use the latest Geoscience Australia Sentinel-2 Analysis Ready Data Collection 3)
jw04 (to use the latest Landsat Derivatives Collection 3 data, e.g. WO, FC)
fk4 (to use legacy derived DEA products, e.g. NIDEM, ITEM, HLTC)
if87 (to use legacy Geoscience Australia Sentinel-2 Analysis Ready Data Collection 1)