Sentinel 1C AIS data

Does anyone know how one can download the AISAUX products?

I tried to query the odata API for any available data products but there appears to be none. For reference, my query string was

https://catalogue.dataspace.copernicus.eu/odata/v1/Products?$filter=Attributes/OData.CSC.StringAttribute/any(att:att/Name eq 'productType' and att/OData.CSC.StringAttribute/Value eq 'AISAUX')

Thanks!