tchat  
lchat  
logname
clobber
dpath
nser         
cfile1       
cfile2       
cfile3       
cfile4       
window   
dtnb     
nbint   
nbdf     
tunits       
outfile 
outfileroot
outfiletype
plot   
plotdev
plotfile
plotdnum     
itre   
itremo 
forcestart
exposure
simultaneous 
spwinbefore
spwinafter
rescale
offset