Directories for Jason-2 Exercise: rnx/ Contains the GPS tracking data in daily RINEX obs files: ostmDDD0.06o.gz eci/ Contains the Jason-2 nav solution ephemeris in daily eci files: ostmDDD0.06oeci.gz quat/ Contains the Jason-2 quaternion data in daily files: ostmDDD0.06oquat1.gz where DDD = Day of year for 2010. There are files for July 15, 2010 through July 24, 2006 (10 days from DOY = 196 to DOY = 205). "ostm" stands for "Ocean Surface Topography Mission" and in this case is synonomous with the Jason-2 GPS receiver. models/ run_gd2p_script* Contains the sample gd2p run for a single day. jason2_oi_template Contains the oi template for Jason-2. You will have to provide the paths to the gravity field and tide model you want to use on your system. Call or email if you have any questions. The class material and standard gd2p.pl help ("gd2p.pl -h |& less") are also great resources. Bruce