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MODIS files for 2021

Posted: Sun Jul 25, 2021 7:22 pm America/New_York
by avmehta
This is one more plea for help! I am having trouble getting GEO file from MODIS L1A for all the files I have tried for in 2021.
I have ordered data from Ocean Color web for the region 'Chesapeake Bay'. To be sure I re-downloaded a few files today (data order number e0a0d088d1fa0166).
The file I tried right now is A2021152172500.L1A_LAC.x.hdf. I am usinb the GUI on my Mac.

I get the following:
MODIS GEO version 6.1.0, built Dec 1 2020 09:48:48
scan: 0 out of 12 Sun Jul 25 18:47:20 2021
scan: 10 out of 12 Sun Jul 25 18:47:20 2021

Creating MODIS geolocation file...
geogen_modis returned with exit status: 0
Percent valid data (0.00) is less than threshold (95.00)
Validation test returned with error code: 1
ERROR: MODIS geolocation processing failed.
Here is the LogReport File:

BEGIN_PGE: Sun Jul 25 18:47:20 2021
FILE: /Users/avmehta/Desktop/LogReport.A2021152172500.GEO.x.hdf
LOGGING: status message logging enabled
TRACE_LEVEL: tracing disabled
PID_LOGGING: disabled

Sun Jul 25 18:47:20 2021

Input file name: /Users/avmehta/Desktop/A2021152172500.L1A_LAC.x.hdf
Output file name: /Users/avmehta/Desktop/A2021152172500.GEO.x.hdf
Local Granule ID: MYD01.A2021152.1725.061.2021152184810.hdf
scans: 12
pixels: 0
missing: 0
out of bounds: 0
Cumulated gflags: 0, 0, 0, 0, 0, 0, 0, 0
Bounding coordinates
east: 3.141593
west: -3.141593
north: -1.570796
south: 1.570796
I am not sure where these coordinates come from.
I have attached LogStatus file. I found this file saved as .hdf! I have converted as pdf.
I installed SeaDAS 8.1.0 and installed OC processors a coupled weeks ago.
Please help me figure out what I am not doing right!
Thank you.

Re: MODIS files for 2021

Posted: Tue Jul 27, 2021 9:55 am America/New_York
by gnwiii
It is unfortunate that the log appears as a PDF file -- text is more useful when quoting for replies.

The log says: "There is NO data for time specified." For cases like this, the level 1 and 2 browser is very helpful to show you the areas with data:
Ocean_Color_Browse_Screenshot.png (38.92 KiB) Not viewed yet

Re: MODIS files for 2021

Posted: Tue Jul 27, 2021 12:10 pm America/New_York
by OB SeaDAS - xuanyang02

It seems that you are not using the latest OCSSW tag, judging from "MODIS GEO version 6.1.0, built Dec 1 2020 09:48:48".

Can you do SeaDAS-OCSSW -> SeaDAS/System Info and post the result here?

When you do install/update OC Processors, please make sure you choose V2021.2 from the valid OCSSW tags: ... OCSSW.html

When you do modis_GEO, please also check refreshDB box: ... s_GEO.html


Re: MODIS files for 2021

Posted: Tue Jul 27, 2021 10:03 pm America/New_York
by avmehta
Hello Bing,
Thanks for your suggestion about OCSSW, I will check that and reinstall. But I can process data for 2019, 2018 MODIS files I checked. Whereas end part of 2020 and 2021 result in the error I shared. How can that happen?!
PS I was able to reinstall OCSSW V2021.2 and process am image from 2021 that did not work before!
Thanks for your help.

Re: MODIS files for 2021

Posted: Wed Jul 28, 2021 8:56 am America/New_York
by OB.DAAC - SeanBailey

Re: MODIS files for 2021

Posted: Wed Jul 28, 2021 3:16 pm America/New_York
by avmehta
Thank you Sean.
Once I reinstalled OCSSW (V2021.2), I was able to process an image from 2021 via GUI on my Mac!