MSG-3 satellite ready to continue weather-monitoring service

Mar 08, 2012
The third Meteosat Second Generation satellite, MSG-3, in the cleanroom at Thales Alenia Space in Cannes, France. The solar panels have been removed for testing, so the inside of the satellite is visible in this image. Credits: ESA

(PhysOrg.com) -- International partners are looking ahead to the newest member in a series of weather satellites that deliver images to European forecasters: MSG-3 is set for launch this summer.

The Meteosat Second Generation (MSG) satellites are designed to improve .

The first in the series, MSG-1 – also known as Meteosat-8 – was launched in 2002. MSG-2 followed three years later. Both have been successful in continuing the legacy of the operational meteorological satellites that started with Meteosat-1 in 1977.

The MSGs offer more spectral channels and are sensing Earth at a higher resolution than the previous Meteosat satellites.

The series returns highly detailed imagery of Europe, the North Atlantic and Africa every 15 minutes for use by meteorologists and national weather .

To guarantee the continuity of service, the third in a planned series of four satellites is on track for in June.

Shortly after liftoff from Kourou, French Guiana, it will be injected into geostationary orbit at an altitude of 36 000 km over the equator.

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MSG-3 is the third in a planned series of four satellites operated by Eumetsat, the European Organisation for the Exploitation of Meteorological Satellites. The satellites return highly detailed imagery of Europe, the North Atlantic and Africa every 15 minutes for use by meteorologists and national weather forecasters. Credits: Eumetsat

ESA has developed the satellites in close cooperation with Eumetsat – the European Organisation for the Exploitation of Meteorological Satellites – and is responsible for the complex launch and early orbit phase. About ten days after launch, Eumetsat will take over routine operations.

Along with keeping track of cloud development and temperature to improve weather forecasting accuracy, MSG-3 has two secondary missions in the areas of radiation and rescue.

The Global Earth Radiation Budget payload measures energy radiated by Earth. This radiation balance across day and night gives insight into atmosphere circulation and energy distribution.  

Meanwhile, the Search and Rescue transponder receives and relays distress signals from beacons within its field of view.

On Wednesday, MSG-3 builder Thales Alenia Space hosted a media event in Cannes, France.

Director of ESA’s Earth Observation Programmes, Volker Liebig outlined the innovations that the mission has made in weather monitoring.

“The latest MSG will continue to deliver precise data in a wide range of spectral bands to ensure high accuracy in weather forecasting in the years to come, and keep close track on cloud development,” said Prof. Liebig.

The Eumetsat Director-General, Alain Ratier, spoke about the success of the first two MSGs and the importance of continuing ’s vital services, while Eumetsat Meteorological Scientist Philip Watts detailed how MSG-3 observes Earth’s atmosphere and surface.

The Director of Optical Observation & Science for Thales Alenia Space, Jean-Jacques Juillet, also presented on how the MSG satellites are built and how extensive tests ensure reliable operations in the years to come.

The presentations were followed by a visit to Thales Alenia Space’s cleanroom, where the satellite is currently being held.

Last month, MSG-3 underwent an intensive, two-day test to validate the full set of flight procedures such as receiving commands and delivering data.

During a simulation campaign this month, engineers will train the mission control teams, particularly on how to solve contingency situations if anything goes wrong.

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