Sentinel-2 Clear Days

About: Sentinel-2 Clear Days

Sentinel-2 Clear Days helps you find low-cloud Sentinel-2 days over a place you care about, build a scrubbable timeline, and export a short film.

Draw or drop an area on the map (or use presets such as Starbase, Colossus, and Cape Canaveral). Scan public Sentinel-2 L2A imagery for clear dates, review cloud/shadow/granule stats, build a timeline, play it at 1–12 frames per second, and export a film that matches that preview speed. Optional inlay box or circle and MGRS or lat/long burn-in on composed frames.

Features
• Area and inlay tools (box or circle) on Apple Maps
• Place search and km-sized drop presets
• Clear-day scan across the Sentinel-2 era (or shorter windows)
• Timeline scrub, play speed, and film export
• On-device stacks—no Marshall Frith account or backend

Network: the app queries the public Element84 Earth Search STAC API (sentinel-2-l2a) and downloads Cloud-Optimized GeoTIFF windows from the asset URLs returned; place search may use OpenStreetMap Nominatim; the basemap uses Apple MapKit.