broadreach;
Thanks for posting the satellite positions for both vessels.
I have plotted those positions, and it appears that the "Seabed Worker" is just maintaining her position well to the west of the search area. The "Anne Candies" seems to operating at towing speed and covering an area in which Météo France originally calculated a back-drift position for the Vertical Stabilizer.
It seems to me that nothing of note has so far been observed in the analyzed side-scan results. With many days of this search phase remaining, I suspect a major rethink is now taking place, e.g. what to do now!
Looking forward to the BEA's next search update.
EDIT :: Plotted the towed track for Anne Candies. Spot position heading shows vessel yawing in swell.
Also, on further analysis, the Seabed Worker has been operating within the
olive area for the past 5 days. Possibly technical problems with the vessel or equipment, or could just be doing some calibration work with the Remus and ROV.
mm43