LANDSAT 8 processing information

Hello,

I am looking for a specific data processing information regarding LANDSAT 8 EO product.
Is the dataset you are providing Collection Level 1? It is hard to identify the dataset because link refferencing USGS under provided documentation site ( https://www.sentinel-hub.com/faq/how-can-i-access-data-landsat-8-quality-assessment-band ) has expired:

https://landsat.usgs.gov/collectionqualityband

I have found some inforamtion on the USGS webpage and I would appreciate any confirmation:
https://www.usgs.gov/land-resources/nli/landsat/landsat-level-1-processing-details

Thank you for any help,
Best regards,
Kamil

Correct, this is Collection 1.
USGS is working to make Collection 2 available on the cloud and as soon as that happens, we will integrate it.

Thank you for your answer!

I still need to know what level of pre-processing was applied to this dataset.

In the link below there is information about 3 levels of the same dataset.

https://www.usgs.gov/faqs/does-landsat-level-1-data-processing-include-atmospheric-correction?qt-news_science_products=0#qt-news_science_products

Is the dataset level 1, 2 or 3?

Best regards,
Kamil

Does an example of a source file helps?
LC08_L1TP_139045_20170304_20170316_01_T1
So Collection 1, Tier 1.

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