The structure for the first ‘B’ satellite of the MetOp Second Generation (MetOp-SG) series has arrived at Airbus’ German satellite integration centre in Friedrichshafen. Weighing in at just over a tonne, it is 6m high, more than 3m wide and forms the backbone of the European Space Agency’s (ESA) new, second generation of polar-orbiting weather satellites.
By November 2022, it should be ready to undergo an environmental test campaign during where it will be verified under space-like conditions.
The MetOp-SG programme is being implemented by ESA in collaboration with EUMETSAT, the European operational satellite agency for monitoring weather, climate and the environment from space.
The MetOp-SG satellite fleet consists of six satellites and will secure the continuation of meteorological observations from a polar orbit in the 2024-2045 timeframe. Comprehensive data from the suite of innovative European instruments will feed into forecasting models bringing observations to a new level.
Numerical weather prediction at regional and global levels will benefit from the satellite programme. MetOp-SG will provide enhanced infrared, microwave, and radio-occultation soundings of temperature and humidity; polar atmospheric motion vectors extracted from optical imagery; novel precipitation and cloud measurements from imagers in the optical, sub-mm and microwave spectra; and high-resolution ocean surface wind-vector and soil moisture measurements extracted from scatterometer observations.
MetOp-SG comprises two series of satellites, with three units in each series. The Satellite A series carries optical instruments and atmospheric sounders, while the Satellite B series accommodates microwave instruments.
Both types are based on Airbus Defence and Space’s Astrobus high-power satellite platforms. While the Satellite A series is being developed and built under the industrial lead of Airbus’s French facility in Toulouse; the design and manufacture of the Satellite B series is led by the company’s Friedrichshafen site in Germany.
Airbus leads an industrial consortium comprising more than 110 companies in 16 European countries and Canada, to supply more than 160 different pieces of equipment and services for the satellites’ platforms and instruments.
Each satellite, with a launch mass of approximately 4 tonnes, will be launched separately. The satellites will be placed on the MetOp sun-synchronous polar orbit, at an average altitude of 831km.
The nominal service life of each satellite is 7.5 years. After 7 years, the subsequent satellite of the same series will be launched, ensuring full operational coverage over a period of 21 years with a pair of A and B type satellites always in orbit.
The first launch of a MetOp-SG satellite is currently scheduled for early 2024.