K2q.m didn't include Sentinel-1 parameters

[GengPeiLin]

K2q.m is used for dem error estimation but it's sensor depended ans only supprot ERS/Envisat, ALOS1 and Radarsat-2 U18. And it will assume ERS/Envisat if sensor not specified.

else
%ERS/ENVISAT
slant_range=7.9048902811596;
near_range=831265;
h=794141;
lambda=0.0565647;
end

Can someone confirm if this will affect the accuracy of dem error estimation? I am willing to add some lines for Sentinel-1.