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klaundal / lompe

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Where to get Iridium data #49

Open CassandraAuri opened 4 months ago

CassandraAuri commented 4 months ago

Hello, I am following the notebook Data Handling with Lompe and I have got it working, however, when I tried to do a new event. I can't not find the new place that produces the ncdf files for iridium. I was able to find https://ampere.jhuapl.edu/download/ which gives me the 2min resolution stipulated buts its saved as a different file name so it doesnt seem lompe pulls it correctly.

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klaundal commented 3 months ago

It seems they moved the data. Do you mind trying a file from here https://ampere.jhuapl.edu/download/?page=dataTab ? Hopefully they didn't also change the data format...

CassandraAuri commented 3 months ago

It seems to be different on first inspection. I downloaded the North vectors and its filesize is 116MB whereas the file in the examples/sample_dataset/raw is 10.7MB. Moreover, the raw vectors are 17.3MB. These are the same day. I will contact the folks at iridium ampere to see about file changes. I think their reprocessing could be the culprit.

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CassandraAuri commented 3 months ago

Just an update, the raw data seemed to have worked when I renamed it to Amp_invert.ncdf; however, I want to double check before closing this. Solution seems to be adding another clause to LN 681 in downloader.py to include ampere..rawdB.nc

if len(file_name) > 1: fn = basepath + file_name else: fn = basepath + event.replace('-', '') + 'Amp_invert.ncdf'