MODIA Aqua/Terra L1A download issues

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jvaldezch
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MODIA Aqua/Terra L1A download issues

by jvaldezch » Fri Jun 06, 2025 11:53 am America/New_York

Recently I've been having issues downloading L1A files from https://oceandata.sci.gsfc.nasa.gov/, files like this one A2025149060500.L1A_LAC.bz2. I got a system in Python which logins into urs.earthdata.nasa.gov and then downloads the files for a region. But let's say the full region is for about 22 swaths but I just end up with 13 or 15 succesfuly downloaded files. Wonder if there is an alternative to get this files? Like L2 files which I can download them from AWS S3.

Thanks in advanced.
broken_download_l1a_modis_aqua.png
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OB Web - jdawson19
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Re: MODIA Aqua/Terra L1A download issues

by OB Web - jdawson19 » Fri Jun 13, 2025 10:46 am America/New_York

Hello,

To clarify, is your script accessing (and failing to download) from the URL https://oceandata.sci.gsfc.nasa.gov/getfile/A2025149060500.L1A_LAC.bz2 ? Does that URL work for you if you just click on it?

Unfortunately, we currently aren't able to replicate this issue (the above link is working for me). One possibility is that your downloads are timing out, because 1.1 MB/sec is a fairly slow rate. It seems like you've got a few downloads going at once--does the problem persist if you try to download just 1 or 2 instead?

Also, it seems like your download *begins*, at least, and then fails. Does that happen when you click on the above link?

Thanks,
Jacob

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