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@wietzesuijker wietzesuijker commented Oct 31, 2025

Summary

  • Sentinel-2 quicklook availability declined quietly: releases beginning 2025-10-29 returned 404 for /quality/l2a_quicklook, and a backfill sweep showed June 2025 cpm_v256 items (e.g. S2A_MSIL2A_20250606T141751_N0511_R110_T22WFS_20250606T183809) were already missing the dataset, so discovery based on STAC alone left the CLI crashing while we wait on the next upstream update from the EODC store.
  • We now probe each advertised quicklook, keep the ones that respond, and continue the run even when the Zarr quicklook dataset is missing despite being advertised; the GeoZarr publishes without previews until the upstream store restores the asset.

Evidence

  • 2025-10-29 (cpm_v256) curl of /quality/l2a_quicklook/.../.zattrs -> HTTP 404 while STAC still lists the asset.
  • 2025-10-31 (cpm_v262) curl -> HTTP 404, jq on .zattrs shows null, STAC assets.l2a_quicklook is null.
  • Backfill through June 2025 (cpm_v256) reveals missing quicklook datasets as early as S2A_MSIL2A_20250606T141751_N0511_R110_T22WFS_20250606T183809.

What Changed

  • scripts/convert.py: filter and mark quicklook groups as optional; continue when downloads 404.
  • README.md: adds a “Quicklook Availability” section summarizing sampling results and guidance for operators.

Linked PR in data-model EOPF-Explorer/data-model#57

@wietzesuijker wietzesuijker force-pushed the fix/geozarr-quicklook-crs branch from 9692d3f to 69f2f07 Compare October 31, 2025 18:43
@wietzesuijker wietzesuijker changed the title Fix quicklook CRS branch pin Make GeoZarr quicklook discovery tolerant of missing datasets Oct 31, 2025
@wietzesuijker wietzesuijker force-pushed the fix/geozarr-quicklook-crs branch from 69f2f07 to 155c4b3 Compare November 2, 2025 05:38
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2 participants