Dual Freq data with CLK93 SSR corrections

Twelve hours of raw observations from a Swift Nav Piksi Multi receiver and a ComNav K708 receiver and seven hours of raw observations from a Tersus BX306 receiver along with CLK93 SSR corrections from CNES for both time periods. Also a config file for RTKLIB SSR solutions. Note that this solution requires demo5 b29c or newer code to run.