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ESA teams are ready for space

Tomorrow's launch of Sentinel-3B will complete the Sentinel-3 constellation, culminating in months of training to fly the latest Copernicus satellite.

The Sentinel-3B satellite has been at the Plesetsk spaceport in Russia since the middle of the year. March will be prepared for its spacewalk on April 25 at 17:57 GMT (19:57 CEST)

With his twin Sentinel-3A in orbit, he will land, land, ice and atmosphere to observe the earth systematically. The pairing of the two satellites optimizes coverage and data delivery for Copernicus.

While ESA and European industry in Russia were busy getting the satellite up and running, tomorrow will see the end of months of intense preparations for mission control team at ESOC's Darmstadt Agency Control Center

Training in Space

The team has numerous simulation trainings in preparation for the approximately three-day take-off phase and the early orbit phase as well as for the start of the commissioning phase, some of the most critical hours and weeks in orbit

The training included several teams from Engineers and scientists at ESOC, including aerospace engineers, specialists working at tracking stations and the sophisticated "ground segment" ̵

1; the hardware and software to control the satellite and distribute its data – as well as experts in the areas of flight dynamics, software and networks, and simulation and Training teams

Tue The simulation training campaign followed several months of intensive preparation that began immediately after the routine mission of Sentinel-3Bs Gemini Sentinel-3A in 2016. Engineers were able to incorporate the lessons learned from the first Sentinel 3 mission into their mission Procedures and Ground Systems

The mission control teams are provided by ESA Sentinels and European industry experts.

Pay attention to separation

After takeoff, the rocket will fly approximately 80-minute mission, characterized by the separation of the first two stages and a boost phase, which is performed by the upper stage, leading to Separation of Sentinel-3B on its free trajectory at about 19:17 GMT (21:17 CEST) leads. 19659002] "After separating from the upper school, we have to wait about 13 minutes to get the first signals from Sentinel-3B through our Kiruna ground station in Sweden, while the satellite will be its sens or actuators and actuators to turn itself towards Stabilize the sun, "says flight director Pier-Paolo Emanuelli.

"During the first ground station, the solar system will fire automatically, assuming everything is going as planned."

"Once we have established a full data connection, we will work around the clock for the next three days Check status and put the complex process in a stable mode ready for flight start-up. "

Dressed with take-away

The teams in Darmstadt completed a full rehearsal yesterday and repeated one last time the countdown and the lift-off part of the mission to make sure that everyone is confident of their abilities and knows what to do when an unexpected situation occurs.

"The satellite will be flown by the ESA in a" tandem configuration "along with its twin Sentinel-3A for about seven months to perform cross-calibration The instruments and data processing between the two," explains José Morales, head of Copernicus. Flight operations of the ESA.

Once the instruments and calibration are verified, the Sentinel 3B satellite will be put into its final orbit and handed over to Eumetsat for operation along with 3A

"Tomorrow when we catch the first signals from space" "Our teams will go to work, bringing experience, expertise and extensive training to the forefront to ensure the success of this important mission," says Paolo Ferri, Head of Mission Operations at ESA.

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