Scarlet's 4 am and 5 am surfacings are plotted here. The short segment from 4 am to 5 am is timed to collect the full CTD profile for assimilation by HYCOM. RU27 is 17 km north of the last reported location for RU17, and just under 30 km west of the Azores territorial waters as marked by the thin yellow arc. Glider and HYCOM currents are mostly south. We are flying Scarlet east.