Recorder went a little crazy at the start - restared at 12:05. Data before is probably rubish
H-maser re-sync at 13:37:50 UT. (No fringes in rtfc before then).
Lack of fringes probably error in vexfile
Drives found to have failed ~14:10 (and sometime before)
Drives probably failed before 21:30 (then restored)
Drives restarted at 11:25 UTC