This data set was acquired with a ship-based Navigation system during Nathaniel B. Palmer expedition NBP0302 conducted in 2003 (Chief Scientist: Dr. Arnold Gordon). These data files are of MGDS:Nav format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): Cross-Slope Exchanges at the Antarctic Slope Front (AnSlope), Leg 1, and funding was provided by NSF grant(s): OPP01-25172.