How to know if HLS image is from Landsat or Sentinel

I have a Python program to download HLS (HARMONIZED_LANDSAT_SENTINEL) imagery, and I’m wondering if it is possible to query whether the original data was from Landsat or Sentinel. Thanks in advance.


You can query the data collection using Catalog API. One of the metadata fields that you can use to filter the results is constellation. You could use this to list the data acquisitions for each constellation. The link to the docs can be found here: Harmonized Landsat Sentinel

Thank you @william.ray . I haven’t interacted with the Catalog API using Python, so this should be a good opportunity to learn how it works.