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SENTINEL-6B

Sea Level Monitor · ESA / NOAA / NASA / EUMETSAT / CNES

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Sentinel-6B continues the most precise sea level measurement record in history into the 2030s. The combined Sentinel-6A and 6B data will determine whether ocean rise is accelerating decade over decade — the key measurement for infrastructure planning in Miami, Shanghai, Amsterdam, Mumbai, and every other coastal city planning its future against a moving sea.

Its orbit

Orbit
Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
Altitude
831–839 mi (1,337–1,350 km)
Inclination
66.0°
One orbit
112.4 minutes12.8 orbits a day
NORAD ID
66514
Int’l designator
2025-264A
Launched
2025

Orbital elements from CelesTrak, as of 22 Sep 2026.

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