getanc.py is failed for Landsat8 OLI

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zhigang
Posts: 67
Joined: Tue Nov 10, 2020 8:03 pm America/New_York

getanc.py is failed for Landsat8 OLI

by zhigang » Thu Jun 15, 2017 11:25 pm America/New_York

Dear everyone,
       A granule of OLI data was downloaded from USGS (new website) named :LC08_L1TP_119038_20170527_20170527_01_RT_MTL.txt. However, I can't download the ancillary files by GUI and getanc.py. The message was:
ERROR: For LC08_L1TP_119038_20170527_20170527_01_RT_MTL.txt could not determine:  start time, start date, stoptime, stop date. Exiting.
l1info reported the following error:
    -E- /data5/swdev/seadas/build/src/liboli/get_oli_nom_angles.c line 37: Initializing the metadata file /home/rslakes/optics/source/taihu/LC08_L1TP_119038_20170527_20170527_01_RT/LC08_L1TP_119038_20170527_20170527_01_RT_MTL.txt.

The filename from new USGS website was different from old website, I guessed that the script can't identify the date. I have updated the processors.
What I should do, could someone give me some suggestions?

Regards,
zhigang

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melliott
Posts: 11
Joined: Tue Jun 08, 2010 2:23 pm America/New_York

getanc.py is failed for Landsat8 OLI

by melliott » Mon Jun 19, 2017 5:47 pm America/New_York

Zhigang,

Checking the USGS Earth Explorer site, I didn't find the file you mentioned, but did get one processed more recently named LC08_L1TP_119038_20170527_20170615_01_T1_MTL.txt. After downloading it, I ran getanc.py and it worked. So my response is the dreaded "Worked on my machine."

Did you get the file from Earth Explorer? Is the get_obpg_file_type.py program able to identify it? Does using its "-t" option provide the start and end times?

That said, our software does not yet support the new format. No date has been set for when that will happen.

-Matt

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