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I think Jacques is behind a proxy.  What I'm behind is a mystery, even to the people responsible for keeping it working.  --auth-no-challenge=on is in the example that worked (to download PM1ATTNR.P2016347.0000.003.2016347150040) for both of us.  I just noticed that S3A_OL_1_EFR__...

The curl example also fails for me with same final message: curl: (47) Maximum (50) redirects followed.   If I add --verbose curl seems to be looping:$ curl -b ~/.urs_cookies -c ~/.urs_cookies -L -n --verbose -O https://oceandata.sci.gsfc.nasa.gov/echo/getfile/S3A_OL_1_EFR____20170111T0048...

Using the Data File Search page (with "Generate checksum text file" checked) the .L3b_MO_SST.nc files for the first 4 months of 2015 were not included in the generated list although the files are available in the level-3 browser.

I don't think authentication is needed for VIIRS.  The html file is just the Earthdata Login page, so there is an authentication problem, as mentioned in Alicia Scott's post.   I can download the S3 file using a browser, but with wget I get the Earthdata login html page.You ca...

The html file may contain some hints about the problem.  Have you tried viewing it in a browser?

Chances are this is more involved than just a change in Geo-Coding.   Depending on the actual organization of the data, you may need to  rewrite the data arrays.  A common case is a data array with 360 columns for longitudes 0--359 and 180 rows for latitudes -90--89.  To get...

You need to do something with the connection to know it works.  On macOS El Capitan:$ /usr/bin/python2.7 -c 'import httplib ; c = httplib.HTTPSConnection("oceancolor.gsfc.nasa.gov"); c.request("GET", "/"); r=c.getresponse(); print r.status, r.reason'Traceba...

The Python 2.7 documentation says ssl.OPENSSL_VERSION was new in 2.7.  Kudos to RedHat for providing a useful Python 2.6 configuration.

Many of my colleagues share your frustration.   I think you are very close to having things working, so please don't give up.  I'm sure there are many users encountering similar problems, so it is very useful when someone steps up to point out gaps in the documentation and per...

You don't need a git GUI.  I'm not sure what you mean by "not able to update the $PATH environment variable".   The command to run the Anaconda installer needs to be run in the directory that contains the downloaded file "Anaconda2-4.3.1-MacOSX-x86_64.sh".&...