Aidan.
I upgraded the HWS code to v1.1.5 on H1HWSMSR. This change saves the centroid data as a MATLAB workspace with GPS time in the filename in the FRAMEARCHIVE directory.
Something about the installation on H1HWSMSR is preventing the centroid data being saved in the nominal GWF file format in v1.1.4 of the code, so the v1.1.5 addition is a work around until we fix that installation issue.