Earthdata Forum

Dear,
Recently, I updated my repositories to v7.5 in my Ubuntu, however there was a problems in procssing modis data. I cannot determine whether it was causedy by the new version. It failed in using modis_L1B.py to process MODIS Terra data after successful operation of modis_GEO.py:
modis_L1B.py /root/data/T2015003021500.L1A_LAC.x.hdf ./T2015003021500.GEO --verbose

The texts thrown by terminal was:
LUT directory: /root/ocssw/var/modist/cal/OPER
LUT version: xx.xxx.xx.xx
Reflective LUT: MOD02_Reflective_LUTs.Vxx.xxx.xx.xx.hdf
Emissive LUT: MOD02_Emissive_LUTs.Vxx.xxx.xx.xx.hdf
QA LUT: MOD02_QA_LUTs.Vxx.xxx.xx.xx.hdf
Processing MODIS L1A file to L1B...
MODIS Terra L1B version 6.2.2_obpg, built Apr 20 2018 12:25:13
/root/ocssw/bin/l1bgen_modist exit status: 1
ERROR: MODIS L1B processing failed.
Please examine the LogStatus and LogUser files for more information.

I tried to update the luts via update_luts.py terra -v, but the luts are latest.
root@vultr:~# update_luts.py terra --verbose
Downloading files into /root/ocssw/var/modis
...no new files.
Downloading files into /root/ocssw/var/modist
...no new files.
Downloading files into /root/ocssw/var/modist/cal/OPER
...no new files.
Downloading files into /root/ocssw/var/modist/xcal/OPER
...no new files.

The Logfiles were attached. Could someone give me suggestions?

Regards,
Zhigang
attachment 1

attachment 2

attachment 3

The MODIS group changed the calibration LUT file format, for Terra only.
At the present time, our default data site is hosting only the old version LUTs, with version numbers like V6.1.*.

The new version is available in the EVAL directory, with version numbers like V6.2.*.
Please be aware that anything in the EVAL directory may be non-optimal.
If you want to use those LUTs, you'll need to explicitly download the EVAL directory, then point modis_L1B.py to the files in question:

1. update_luts.py terra --eval
2. modis_L1B.py /root/data/T2015003021500.L1A_LAC.x.hdf ./T2015003021500.GEO --verbose
--lutdir=$OCVARROOT/modist/cal/EVAL/ --lutver=xx.xxx.xx.xx

Sorry for the inconvenience.  When V7.5 is officially released, we will post the updated-format LUTs to OPER.

Thanks very much. It works for terra now. Looking forward the realease of V7.5.

Regards,
Zhigang