This data set was acquired with a ship-based Navigation system during Maurice Ewing expedition EW0113 conducted in 2001 (Chief Scientist: Dr. Neal Driscoll). These data files are of Text File (ASCII) format and include Navigation data and were processed after data collection. Data were acquired as part of the project(s): Geophysical Investigation of the Gulf of Aden: Determining How Hotspot Proximity Affects Tectonic, Magmatic and Stratigraphic Development of Conjugate Margin, and funding was provided by NSF grant(s): OCE02-96103, OCE99-11877, OCE99-11962, and OCE99-12007.