Tools for Finding Problems in the Data or Processing
Topics to be covered Postfit editing Sky plots of residuals CVIEW interactive data viewer Common failure modes 30-Dec-18 GAMIT/GLOBK Tutorial 6
Skyplots To make them Check that GMT software is installed Include following command in autcln.cmd POST phs_res_root DPH Will create DPH files Examples: HOLC in California Results from /dell3/tah/glob99 using display 30-Dec-18 GAMIT/GLOBK Tutorial 6
HOLC skyplots 30-Dec-18 GAMIT/GLOBK Tutorial 6
CVIEW an interactive viewer of GPS data allows editing and cycle slip repair seldom used now autcln works well on most data useful for diagnosis when autcln fails example use of cview To retain C-files to read with cview, use -e option in sh_gamit. Examine /dell3/tah/iap02/013r 30-Dec-18 GAMIT/GLOBK Tutorial 6
Failures Reported in the GAMIT.fatal files Most common modes of failure setup errors receiver and antenna information bad apriori coordinates tables out of range Examples fatal errors in yesterday's tutorial 30-Dec-18 GAMIT/GLOBK Tutorial 6
Summary Examine sky plots phase residuals help evaluate quality Examine GAMIT.fatal diagnose upstream problems 30-Dec-18 GAMIT/GLOBK Tutorial 6