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by alaroy » Thu Sep 12, 2019 5:02 pm America/New_York
When I try to process A2019255174500.L1A_LAC using the modis_GEO.py command it fails like so:
MODIS GEO version 6.1.0, built Nov 17 2018 15:44:32 scan: 0 out of 203 Thu Sep 12 16:47:04 2019 scan: 10 out of 203 Thu Sep 12 16:47:04 2019 scan: 20 out of 203 Thu Sep 12 16:47:04 2019 scan: 30 out of 203 Thu Sep 12 16:47:04 2019 scan: 40 out of 203 Thu Sep 12 16:47:05 2019 scan: 50 out of 203 Thu Sep 12 16:47:05 2019 scan: 60 out of 203 Thu Sep 12 16:47:05 2019 scan: 70 out of 203 Thu Sep 12 16:47:05 2019 scan: 80 out of 203 Thu Sep 12 16:47:05 2019 scan: 90 out of 203 Thu Sep 12 16:47:05 2019 scan: 100 out of 203 Thu Sep 12 16:47:05 2019 scan: 110 out of 203 Thu Sep 12 16:47:05 2019 scan: 120 out of 203 Thu Sep 12 16:47:05 2019 scan: 130 out of 203 Thu Sep 12 16:47:06 2019 scan: 140 out of 203 Thu Sep 12 16:47:06 2019 scan: 150 out of 203 Thu Sep 12 16:47:06 2019 scan: 160 out of 203 Thu Sep 12 16:47:06 2019 scan: 170 out of 203 Thu Sep 12 16:47:06 2019 scan: 180 out of 203 Thu Sep 12 16:47:06 2019 scan: 190 out of 203 Thu Sep 12 16:47:06 2019 scan: 200 out of 203 Thu Sep 12 16:47:06 2019 Percent valid data (0.00) is less than threshold (10.00) ERROR: MODIS geolocation processing failed.
I saw this a few weeks ago when a % in the low 90's tripped up on the default value of 95. I dealt with it by reducing the threshold, but it seems like there is something more seriously wrong this time. What's going on and is there a way to recover any valid data from this granule?
by gnwiii » Thu Sep 12, 2019 5:28 pm America/New_York
There have been some issues with modis_GEO.py that should have been fixed. To get them run install_ocssw.py -b v7.5 --aqua. This should also update ancillary files. Here, with an OCSSW system that was updated several weeks ago:
$ modis_GEO.py -v --log A2019255174500.L1A_LAC -o A2019255174500.GEO ** Files utcpole.dat/leapsec.dat are more than 2 weeks old. ** Running update_luts.py to update files...
Downloading files into /home/gwhite/ocssw/var/modis + leapsec.dat + utcpole.dat
Downloading files into /home/gwhite/ocssw/var/modisa ...no new files.
Downloading files into /home/gwhite/ocssw/var/modisa/cal/OPER + MYD02_Emissive_LUTs.V6.2.1.31_OC_v1.31.hdf + MYD02_QA_LUTs.V6.2.1.31_OC_v1.31.hdf + MYD02_Reflective_LUTs.V6.2.1.31_OC_v1.31.hdf
...deleting outdated LUTs: - xcal_modisa_axc_oc_v1.30d_1240.hdf - xcal_modisa_axc_oc_v1.30d_1640.hdf - xcal_modisa_axc_oc_v1.30d_2130.hdf - xcal_modisa_axc_oc_v1.30d_412.hdf - xcal_modisa_axc_oc_v1.30d_443.hdf - xcal_modisa_axc_oc_v1.30d_469.hdf - xcal_modisa_axc_oc_v1.30d_488.hdf - xcal_modisa_axc_oc_v1.30d_531.hdf - xcal_modisa_axc_oc_v1.30d_547.hdf - xcal_modisa_axc_oc_v1.30d_555.hdf - xcal_modisa_axc_oc_v1.30d_645.hdf - xcal_modisa_axc_oc_v1.30d_667.hdf - xcal_modisa_axc_oc_v1.30d_678.hdf - xcal_modisa_axc_oc_v1.30d_748.hdf - xcal_modisa_axc_oc_v1.30d_859.hdf - xcal_modisa_axc_oc_v1.30d_869.hdf Determining required attitude and ephemeris files... Searching database: /home/gwhite/ocssw/var/ancillary_data.db () Input file: A2019255174500.L1A_LAC Sensor : modisa Start time: 2019255174500 End time : 2019255175000 () Downloading 'PM1ATTNR_NRT.A2019255.1750.061' to /home/gwhite/ocssw/var/anc/2019/255 Downloading 'PM1ATTNR_NRT.A2019255.1745.061' to /home/gwhite/ocssw/var/anc/2019/255 Downloading 'PM1ATTNR_NRT.A2019255.1740.061' to /home/gwhite/ocssw/var/anc/2019/255 Downloading 'PM1EPHND_NRT.A2019255.1745.061' to /home/gwhite/ocssw/var/anc/2019/255 Downloading 'PM1EPHND_NRT.A2019255.1750.061' to /home/gwhite/ocssw/var/anc/2019/255 Downloading 'PM1EPHND_NRT.A2019255.1740.061' to /home/gwhite/ocssw/var/anc/2019/255
Creating MODIS geolocation file... MODIS GEO version 6.1.0, built Aug 16 2019 12:46:24 scan: 0 out of 203 Thu Sep 12 18:18:41 2019 scan: 10 out of 203 Thu Sep 12 18:18:42 2019 scan: 20 out of 203 Thu Sep 12 18:18:43 2019 scan: 30 out of 203 Thu Sep 12 18:18:44 2019 scan: 40 out of 203 Thu Sep 12 18:18:44 2019 scan: 50 out of 203 Thu Sep 12 18:18:45 2019 scan: 60 out of 203 Thu Sep 12 18:18:46 2019 scan: 70 out of 203 Thu Sep 12 18:18:46 2019 scan: 80 out of 203 Thu Sep 12 18:18:47 2019 scan: 90 out of 203 Thu Sep 12 18:18:48 2019 scan: 100 out of 203 Thu Sep 12 18:18:49 2019 scan: 110 out of 203 Thu Sep 12 18:18:49 2019 scan: 120 out of 203 Thu Sep 12 18:18:50 2019 scan: 130 out of 203 Thu Sep 12 18:18:51 2019 scan: 140 out of 203 Thu Sep 12 18:18:51 2019 scan: 150 out of 203 Thu Sep 12 18:18:52 2019 scan: 160 out of 203 Thu Sep 12 18:18:53 2019 scan: 170 out of 203 Thu Sep 12 18:18:54 2019 scan: 180 out of 203 Thu Sep 12 18:18:54 2019 scan: 190 out of 203 Thu Sep 12 18:18:55 2019 scan: 200 out of 203 Thu Sep 12 18:18:56 2019 geogen_modis returned with exit status: 0 Percentage of pixels with missing geolocation: 0.00 Validation test passed for geolocation file A2019255174500.GEO geogen_modis created A2019255174500.GEO successfully! MODIS geolocation processing complete.
If modis_GEO.py fails after the update, attach the Log files to your reply. If it works, please let us know (so NASA folks don't loose time fretting over a problem they already fixed).