Watch: Sentinel-6B launch reside broadcast

13/11/2025
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Sentinel-6B, the following sea-level monitoring satellite tv for pc for the Copernicus Earth remark programme, is prepared for launch on the Vandenberg Space Force Base in California in just some days. Here’s how one can watch the liftoff reside on ESA Web TV.

Launch with SpaceX on Falcon 9 is predicted at 06:21 CET on Monday, 17 November (21:21 Pacific Time, on Sunday, 16 November). The live coverage will begin at 05:30 CET.

Please word: launch occasions are topic to vary at brief discover. This web page will likely be up to date as quickly as data turns into obtainable, so please examine again or bookmark the article.

Follow the launch reside

Here is the programme schedule for the liftoff of Copernicus Sentinel-6B, live on ESA WebTV Monday, 17 November (all occasions in CET).

• 05:30 – broadcast begins (streaming from NASA)
• 05:52 – change to streaming from SpaceX
• 06:21 – Sentinel-6B liftoff
• 07:28 – broadcast ends

About Sentinel-6B

Sentinel-6B follows within the footsteps of its predecessor, Sentinel-6 Michael Freilich, which was launched in 2020. The mission is the reference radar altimetry mission that continues the very important report of sea-surface peak measurements till no less than 2030.

Sentinel-6B will function along with its sibling throughout its first yr, enabling better accuracy with exact cross-calibration between the 2 devices.

Monitoring sea-level rise is excessive on the worldwide agenda. In the previous 25 years, the common peak of the world’s oceans has risen by nearly 10 cm, in accordance with data from Copernicus. The Copernicus Sentinel-6 mission has change into the gold normal reference mission to observe and report this key consequence of local weather change. The mission builds on heritage from the French–US Jason sequence, ESA’s CryoSat and the Copernicus Sentinel-3 missions.

Sentinel-6 is the results of cooperation between the European Commission, ESA, NASA, Eumetsat, and NOAA, with help from CNES, the French area company. The prime contractor for the mission is Airbus Defence and Space in Germany with Thales Alenia Space in France chargeable for the altimeter.

Poseidon-4 screens the waves

The fundamental instrument on Sentinel-6 is the Poseidon-4 dual-frequency (C-band and Ku-band) radar altimeter. Developed by ESA, the altimeter measures sea-surface peak. It additionally captures the peak of ‘significant’ waves in addition to wind pace to help operational oceanography.

The Poseidon-4 altimeter is supported by a sophisticated microwave radiometer, offered by NASA. Water within the environment impacts the pace of the altimeter’s radar pulses – and subsequently the estimates of sea-surface peak. The superior microwave radiometer determines the water content material within the environment for precisely correcting the radar measurements.

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