Currently, there are K-corrections in /home/astro1/deepsearch/spectra in
files called 'ijlist' where i is is the band in which the local sn is in
and j is the band of the distant supernova.  In each file there are five
columns,

filename	z	kcorr	olap	epoch

I have been using kcorrections in which olap ge 0.99

so to see what the kcorrections are for a supernova at z=0.425 for b to
r type

readcol,'/home/astro1/deepsearch/spectra/brlist',name,z,kcorr,olap,epoch,format='a,f,f,f,f'

w=where(olap ge 0.99 and z eq 0.425)

plot,epoch(w),kcorr(w),psym=4

or something like that to get an idea of what the kcorrection should be.

Remember the k-correction is added to the local supernova magnitude to get
the observed supernova magnitude.

If you want to look at the data directly then
Alex