Sentinel-3A takes power nap

While we wait for news about a new launch date, we have started to prepare our satellite for a ‘power nap’. This involves removing the battery arming plugs and discharging the battery by 50%, which will help to prolong its life.

We are also putting the ground support equipment in a safe and dormant state, including moving some of the mechanical ground support equipment and one of the hydrazine fuelling drums from the fuelling platform to the cleanroom floor.

Sentinel-3A takes a nap. (ESA)

Sentinel-3A takes a nap. (ESA)

The launch delay also means that we are busy replanning travel etc for all the teams involved.

We should get confirmation of a new launch date early next week.

For information about our Sentinel-3 mission visit

From the ESA Sentinel-3A team at the Plesetsk cosmodrome in Russia.



  • Miguel Ángel says:

    In the Cal/Val calendar, a tentative date has been set (16.02)… is it just a guess? A real possibility?
    We are eager to see S3 fly! 🙂

  • Honora says:

    Confirmation of a new launch date should come early next week, but they are currently looking at a launch window between 16-20 February.

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