For those wondering what is going on with the search, the following Radio Navigation Warning to shipping issued by the Brazilian Navy should be of interest..
CENTRO DE HIDROGRAFIA DA MARINHA
RADIO NAVIGATIONAL WARNINGS
NAVAREA V
1544/09 – NORTHWEST OF ARQUIPELAGO DE SAO PEDRO E SAO PAULO – CHART 10 (INT 216) - VESSEL POURQUOI PAS – CARRYING OUT OCEANOGRAPHIC RESEARCH IN CIRCULAR AREA WITH 70 NAUTICAL MILES RADIUS CENTERED IN POSITION: 03-00.00N 030-36.00W - UNDERWATER VEHICLE NEAR THE VESSEL - PERIOD: 26/JUL TO 16/AUG. BERTH REQUESTED. CANCEL THIS WARNING 170359Z/AUG/09.
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