[GRASS-user] i.landsat.toar unable to read metadata file

Balázs András (METLA) andras.balazs at metla.fi
Tue Dec 11 04:48:58 PST 2012

Hi Moritz,

thanks for your input!
I thought of this myself. Removed the binary bit from the files and used them text-only versions without success.
It has to do something with the structure of the metadata files, as Jorge Tizado pointed it out for me.



-----Original Message-----
From: Moritz Lennert [mailto:mlennert at club.worldonline.be] 
Sent: 11. joulukuuta 2012 11:57
To: Balázs András (METLA)
Cc: grass-user at lists.osgeo.org
Subject: Re: [GRASS-user] i.landsat.toar unable to read metadata file

On 04/12/12 08:05, Balázs András (METLA) wrote:
> Hi,
> I am using GRASS 7.0.svn (SVN Revision: 53972) in Windows 7 64-bit, trying to generate cloud masks for Landsat5 and 7 images acquired from USGS.
> For some reason i.landsat.toar gives me "Failed to identify satellite" error when I try to run it with the metadata file loaded. I'm able to load the contents of the metadata file to the viewer of the application, but apparently the tool can't find the required information.
> In the case above I've loaded the file * _MTLold.txt. If *_MTL.txt file is loaded, I got the following messages:
> WARNING: Unable to recognize satellite platform [0]
> ERROR: Failed to identify satellite
> Product date is 2012-10-09.

I've noticed that the MTL files have some form of binary info at the end (last line). This keeps several text editors from opening these files. 
When I open them in vi and erase the last line, everything is fine. I don't know where that line comes from.

Maybe that's what's keeping the module from reading them correctly ?


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