What was the purpose of the four (well, three; one cancelled) non-passenger Eurostar services between St. Pancras and Ashford today? They were the 10:15 from St. Pancras, 11:13 from Ashford, 12:12 from St. Pancras and cancelled 14:36 from Ashford. As far as I can tell, they're not scheduled to run at any other time.