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None of our code is secret.  You can view it here:
https://oceancolor.gsfc.nasa.gov/docs/ocssw/files.html

Each sensor formats its raw data differently, so there is a different set of L0 to L1A code for each sensor.  Look in src/l1* directories.

The inputs to watermask15ARC.nc were developed by members of the MODIS Land Science Team, with the intent of keeping any water-containing pixels from being processed with land algorithms.  As a result, every river, small lake, and coastline was flagged as water - land-containing pixels which ar...

The LogStatus file indicates:
No entry for file with LID 600020
This should point to the geolocation LUT.
I'd say to try "Update OC Processors" - but even I get the error described in the link gnwii gave.

Every satellite mission has occasional data outages.  Here is one site that tracks them for the MODIS and VIIRS instruments:
https://modaps.modaps.eosdis.nasa.gov/services/production/outages.html
That page notes, for instance, that MODIS Aqua was in safe mode from July 29, 2002 - August 08, 2002.

Adding "--log" to your invocation will leave all of the processing log files in the output directory.  The LogStatus file is most likely to have useful diagnostics.

Please just give us a file name.
Bit 15 of SST Quality Flags is SST_CLOUD, which you had said is set in Suwa Lake under clear conditions.

Could you give us an example of a standard product, where SST_CLOUD is set where there are no clouds?

And, yes, I mean starting from calibrated radiance.
You may want to start with SeaDAS: https://seadas.gsfc.nasa.gov/

Bit 15 of which flag?Our land/water mask flags only the largest inland water bodies.  At 15 sq km, Lake Suwa is probably flagged as land.Our standard products do not attempt to process chlorophyll or SST over land.  Your best bet is to generate l2 products yourself, using the "proc_la...

1.  For any product, when a pixel contains a null or fill value, it means that no meaningful value could be determined - for any of a number of reasons.  To find the reason in the case of SST, you will need to decode the corresponding flags_sst value using the table you mentioned: https://...

You say you want results.
What results are you looking for?
You say you "have to upload pictures modis aqua L2 (10 years)", but that doesn't tell us what your goals are.
For instance, are you trying to export MODIS Aqua chlorophyll as mapped pngs?