General discussion

Is it possible to perform  a complete PSInsar worflow in Terrascopre VM?   

It is possible to download urn:eop:VITO:ESA_WorldCover_10m_2020_V1 products. Everything works fine. It is, however, not possible to download urn:eop:VITO:ESA_WorldCover_S1VVVHratio_10m_2020_V1 or urn:eop:VITO:ESA_WorldCover_S2RGBNIR_10m_2020_V1 products, the HTTP response code being 404.   This seems to be an authorization issue (HTTP 404) but, on the other hand, the construction of the first URL seems to be a little different (in respect to the other URLs). Please help me understand if/how it would be possible to download the S1VVVHratio_10m_2020_V1 and S2RGBNIR_10m_2020_V1 products. https://services.terrascope.be/download/WORLDCOVER/ESA_WORLDCOVER_10M_2020_V100/MAP/ESA_WorldCover_10m_2020_v100_N39E000_Map/ESA_WorldCover_10m_2020_v100_N39E000_Map.tif https://services.terrascope.be/download/WORLDCOVER/ESA_WORLDCOVER_10M_2020_V100/S1VVVHRATIO/ESA_WorldCover_10m_2020_v100_N41E001_S1VVVHratio.tif https://services.terrascope.be/download/WORLDCOVER/ESA_WORLDCOVER_10M_2020_V100/S2RGBNIR/ESA_WorldCover_10m_2020_v100_N49E005_S2RGBNIR.tif

  There seems to be a difference between Sentinel-1 and Sentinel-2 when it comes to downloading the product (as a .zip file) and opening it with ESA's Snap application. The S1 products are downloadable as a zip .file. The URL of this file is present in the response payload for a search (path: features.properties.links.data.href).   URL of the search: https://services.terrascope.be/catalogue/products?collection=urn:eop:VITO:CGS_S1_SLC_L1&collection=urn:eop:VITO:CGS_S1_GRD_L1&start=2021-12-29&end=2022-01-06&geometry=POLYGON((6.352433189749719%2049.90370356672262,%206.457901671528817%2049.90370356672262,%206.457901671528817%2049.949002521470284,%206.352433189749719%2049.949002521470284,%206.352433189749719%2049.90370356672262))   URL of the .zip file: https://services.terrascope.be/download/CGS_S1_SLC_L1/IW/DV/2021/12/30/S1A_IW_SLC__1SDV_20211230T055052_20211230T055119_041234_04E67C_EBE5/S1A_IW_SLC__1SDV_20211230T055052_20211230T055119_041234_04E67C_EBE5.zip   The product can be open in Snap.   The S2 products (only tried for urn:eop:VITO:CGS_S2_L1C) are downloadable as a collection of individual files.   URL of the search: https://services.terrascope.be/catalogue/products?collection=urn:eop:VITO:CGS_S2_L1C&startIndex=1&count=10&start=2021-12-30&end=2022-01-07&geometry=POLYGON((6.284214053303004%2049.892271728044,%206.330356765538455%2049.892271728044,%206.330356765538455%2049.93758147405905,%206.284214053303004%2049.93758147405905,%206.284214053303004%2049.892271728044))   URLs of some files (3 out of 104): https://services.terrascope.be/download/CGS_S2_L1C/2022/01/02/S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621/S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621.SAFE/GRANULE/L1C_T31UGR_A025202_20220102T104336/QI_DATA/T31UGR_20220102T104339_PVI.jp2 https://services.terrascope.be/download/CGS_S2_L1C/2022/01/02/S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621/S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621.SAFE/manifest.safe https://services.terrascope.be/download/CGS_S2_L1C/2022/01/02/S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621/S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621.SAFE/GRANULE/L1C_T31UGR_A025202_20220102T104336/IMG_DATA/T31UGR_20220102T104339_B03.jp2   There is an endpoint that allows for the download of the files (indicated as the payload of the HTTP POST request): https://services.terrascope.be/package/zip I noticed this endpoint by means of reverse-engineering, analyzing the "viewer" application in the browser. There seems to be no documentation on this endpoint. It would be great to have more info, it would be great to know if (and how) it could be parametrized/configured.   The result of this call is a .zip file. However, this .zip file presents some issues and it is not usable as such: Snap cannot open the Terrascope product, neither the desktop application nor the Java lib. I tried to manually adjust (as described below) the .zip file, still, I cannot open it with Snap.   The following analysis is made by comparing the same product downloaded from two providers Terrascope and Creodias.   URL of the search (Creodias): https://services.terrascope.be/catalogue/products?collection=urn:eop:VITO:CGS_S1_SLC_L1&startIndex=1&count=10&start=2021-12-29&end=2022-01-06&geometry=POLYGON((6.352433189749719%2049.90370356672262,%206.457901671528817%2049.90370356672262,%206.457901671528817%2049.949002521470284,%206.352433189749719%2049.949002521470284,%206.352433189749719%2049.90370356672262))   URL of the .zip file (Creodias): https://zipper.creodias.eu/download/74a8f296-e256-5806-b0e7-709b56f259b4     The inner path of the  file: Creodias: S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621.SAFE\MTD_MSIL1C.xml Terrascope: CGS_S2_L1C\2022\01\02\S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621\S2B_MSIL1C_20220102T104339_N0301_R008_T31UGR_20220102T113621.SAFE\MTD_MSIL1C.xml Changing the inner path, alone, does not fix the problem. It might be, however, a required step.   Compressing method: Creodias: the inner directories and files are not compressed, the size and packed-size values are equal. The method is Store. Terrascope: the inner directories and files are compressed, the size and packed-size values are different. The method is Deflated for files, not declared for directories. Changing the compressing method (meaning to archive but not compress the files) still does not fix the problem.   Attributes/Permissions of the inner directories and files: Creodias: directories: D drwxrwxr-x & files: -rw-rw-r-- Terrascope: no attributes It might be an issue of file-visibility. Snap manages to see the MTD_MSIL1C.xml file and the GRANULE directory, but cannot see the children-files of GRANULE.  

I am not able to download Sentinel-2 Data Products (urn:eop:VITO:CGS_S2_L1C). I tried using the browser, Postman, the Python client and the web-service through a Java client. The response is always the same "404Not Found".   For example, the product "S2A_MSIL1C_20220102T001111_N0301_R073_T55HFA_20220102T013405" points to the following URL: https://services.terrascope.be/download/CGS_S2/CGS_S2_L1C/2022/01/02/S2A_MSIL1C_20220102T001111_N0301_R073_T55HFA_20220102T013405/S2A_MSIL1C_20220102T001111_N0301_R073_T55HFA_20220102T013405.SAFE/GRANULE/L1C_T55HFA_A034104_20220102T001111/IMG_DATA/T55HFA_20220102T001111_B03.jp2   On the other hand, with the same credentials, I am able to download Sentinel-1 (urn:eop:VITO:CGS_S1_GRD_L1 & urn:eop:VITO:CGS_S1_SLC_L1) and Sentinel-2 (urn:eop:VITO:TERRASCOPE_S2_TOC_V2 & urn:eop:VITO:TERRASCOPE_S2_CCC_V2).   Any help would be very much appreciated.

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