nasa-csda 1.3.0

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nasa-csda-cli

This is a CLI and SDK for querying and downloading files from Spire's CSDA catalog.

Install it from PyPI

pip install nasa-csda

Using the CLI

See the command's help dialog for detailed usage information for all commands.

nasa-csda-cli --help

All of the commands require login information (the same username and password used to log into the web page). You can also set environment variables to provide these credentials.

export CSDA_USERNAME=<username>
export CSDA_PASSWORD=<password>

Bulk downloading files

The catalog's web page provides the ability to download a query configuration file that can be provided to the CLI to download all files matching the query created in the UI. To download all files using this configuration file,

nasa-csda-cli --username <username> --password <password> bulk-download download-config.json

Querying the catalog

You can also construct queries to perform custom tasks using the query command.

nasa-csda-cli query --start-date 2020-01-01 --end-date 2020-01-02 \
    --products opnGns,atmPhs \
    --min-latitude -50 --max-latitude 50 --min-longitude -50 --max-longitude 50

By default, this will download all matching files in the same way that the bulk download does. There are two additional modes of operation this command supports.

Listing download links

In list mode, a link to all files will be printed to STDOUT.

nasa-csda-cli query --start-date 2020-01-01 --end-date 2020-01-02 \
    --products opnGns,atmPhs \
    --min-latitude -50 --max-latitude 50 --min-longitude -100 --max-longitude 100 \
    --mode list --no-progress --limit 10

https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-56-00_FM104_R15_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-56-00_FM104_R15.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-55-05_FM105_R14_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-55-05_FM105_R14.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-54-35_FM105_G07_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-54-35_FM105_G07.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-54-12_FM104_G32_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-54-12_FM104_G32.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-53-50_FM105_G30_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-53-50_FM105_G30.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-52-32_FM085_G31_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-52-32_FM085_G31.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-52-07_FM105_G12_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-52-07_FM105_G12.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-51-38_FM106_G03_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-51-38_FM106_G03.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-51-35_FM105_E03_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-51-35_FM105_E03.nc
https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-51-32_FM104_G25_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-51-32_FM104_G25.nc

Getting raw GeoJSON objects

In raw mode, the command will stream out GeoJSON objects conforming to the STAC spec.

nasa-csda-cli query --start-date 2020-01-01 --end-date 2020-01-02 \
    --products opnGns,atmPhs \
    --min-latitude -50 --max-latitude 50 --min-longitude -100 --max-longitude 100 \
    --mode raw --no-progress --limit 1

Using the CLI to authenticate requests

Advanced users can use the token command to generate authentication headers that allow downloading files using other tools.

TOKEN="$(nasa-csda-cli token)"
curl -O -L -H "Authorization: Bearer ${TOKEN}" https://nasa-csda.wx.spire.com/download/spire/2020-01-01T23-56-00_FM104_R15_atmPhs/spire_gnss-ro_L1B_atmPhs_v06.01_2020-01-01T23-56-00_FM104_R15.nc

Using the SDK

The library can be directly for custom behavior. See the examples for information on how to use it.