[GRASS-user] i.atcorr results in all nulls for 3 out of 4 bands

I was able to compile a new satellite sensor (from Planet labs) in the
i.atcorr module. I've tried several different things but I keep getting all
nulls for the red, blue, and green bands while getting good values for the
NIR. I know the region is correct, plus I get values for atmospherically
correcting the NIR band so I cannot think of anything else that may be
wrong! I've attached the file I generated with the create_iwave script. I
also followed the how to guide within the i.atcorr module, and tried this on
grass 7.5 and 7.4

Any help is greatly appreciated,
Gwen

planet_cpp_template.txt
<http://osgeo-org.1560.x6.nabble.com/file/t382886/planet_cpp_template.txt&gt;

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Sent from: http://osgeo-org.1560.x6.nabble.com/Grass-Users-f3884509.html

Hi Gwen,

On Thu, Apr 5, 2018 at 11:36 PM, gwen210 <gjmiller@email.sc.edu> wrote:

I was able to compile a new satellite sensor (from Planet labs) in the
i.atcorr module. I've tried several different things but I keep getting all
nulls for the red, blue, and green bands while getting good values for the
NIR. I know the region is correct, plus I get values for atmospherically
correcting the NIR band so I cannot think of anything else that may be
wrong! I've attached the file I generated with the create_iwave script. I
also followed the how to guide within the i.atcorr module, and tried this on
grass 7.5 and 7.4

I've taken your (offlist) CSV files and made a plot (attached).

To me the curves look too much correlated in order to produce anything
reasonable with i.atcorr (6S).
Have these filter functions been officially published anywhere?

Best
Markus

--
Markus Neteler, PhD
http://www.mundialis.de - free data with free software
http://grass.osgeo.org
http://courses.neteler.org/blog

(attachments)

planet_RGB_NIR_curves.png