[GRASS-user] CLI syntax for gain in i.landsat.toar

[Michael Perdue]

Hi,

I've been playing around with i.landsat.toar and am having problems  
correctly entering the gain values on the command line.

The bands are labeled as:
l7_049026_01_toaDN  l7_049026_04_toaDN  l7_049026_08_toaDN
l7_049026_02_toaDN  l7_049026_05_toaDN  l7_049026_6h_toaDN
l7_049026_03_toaDN  l7_049026_07_toaDN  l7_049026_6l_toaDN

date=2000-06-26

solar_elevation=60.44

Gain values are:
Band     LMAX/LMIN
l7_049026_01  193.51/-6.20
l7_049026_02  201.58/-6.00
l7_049026_03  157.96/-4.50
l7_049026_04  234.06/-4.50
l7_049026_05  31.63/-1.00
l7_049026_06l 16.97/0.00
l7_049026_06h 10.94/-0.35
l7_049026_07  243.02/-5.00
l7_049026_08  12.61/3.20

I've tried;
i.landsat.toar -7 band_prefix=l7_049026_ \
    date=2000-06-26 solar_elevation=60.44 \
        
gain 
= 
193.51 
,-6.20,201.58 
,-6.00,157.96 
,-4.50,234.06 
,-4.50,31.63,-1.00,16.97,0.00,10.94,-0.35,243.02,-5.00,12.61,3.20

as well as (among others);
i.landsat.toar -7 band_prefix=l7_049026_ \
    date=2000-06-26 solar_elevation=60.44 \
        
gain 
= 
'193.51 
/-6.20,201.58 
/-6.00,157.96 
/-4.50,234.06 
/-4.50,31.63/-1.00,16.97/0.00,10.94/-0.35,243.02/-5.00,12.61/3.20'

But no matter what I try, I receive the message "ERROR: For Landsat-7  
is necessary band gain with 9 (H/L) data".
What is the correct syntax?

Cheers,

Mike