Overpass

VIIRS · MODIS · Meteosat · Landsat

newest — fetched —

from days

fires Hautes Fagnes — Hürtgenwald —

sources VIIRS/MODIS — Meteosat 10-min — Landsat 30 m —

VIIRS/MODIS — polar orbiters: sharp (375 m–1 km pixels) but only a few passes per day.
Meteosat — geostationary: a fresh image every 10 minutes at ~1 km, so it carries the "newest" reading. FIRMS serves only its last 2 days.
Landsat — 30 m detail on a ~16-day revisit: sharp when it appears, usually empty.

low nominal high detection confidence — polar sensors (VIIRS/MODIS)

meteosat geostationary: a fresh image every 10 min, ~1 km pixels

landsat 30 m pixels, ~16-day revisit — usually absent

radius ∝ FRP dot size grows with fire radiative power (MW)

◇ waypoint OSM landmark, for orientation only

▨ hatched band timeline stretch no data covers yet — its width is the staleness

——

dots 1.0× fade 13 h

frameno data loaded sat— points— Σfrp— extent—