THREDDS Data Server Catalog https://dap.ceda.ac.uk/thredds/catalog/neodc/arsf/2008/GB08_19/GB08_19-2008_227_London_Night/L1b/catalog.html

Dataset Size Last Modified
     Folder  L1b   --
         a227021b.hdf 793.4 Mbytes 2008-09-11T16:10:13Z
         a227011b.hdf 778.2 Mbytes 2019-12-06T00:56:01Z

THREDDS Data Server at CEDA see Info
THREDDS Data Server [Version 4.6.15 - 2020-06-16T13:36:16-0600] Documentation