(9 March 2021 – OHB Sweden) OHB Sweden and the European House Company (ESA)as we speak signed a contract appointing OHB Sweden because the prime contractor for the event of the Arctic Climate Satellite tv for pc (AWS) Programme.
Artist’s impression of the Arctic Climate Satellite tv for pc missio (courtesy: OHB Sweden)
The contract consists of the event of the satellite tv for pc (together with the instrument), the event of the bottom section and in addition the preparation actions for the AWS constellation. The AWS is part of the ESA’s Earth Watch programme. The AWS consists of a single satellite tv for pc which is the proto-flight mannequin of a potential future constellation of AWS satellites. The satellite tv for pc is provided with a payload particularly designed to offer world measurements of the ambiance to reinforce climate predictions (particularly over the Arctic). The mission has acquired funding on the ESA ministerial convention (House19+). The signed contract has a complete worth of 32.5 million euros.
The general necessities for Arctic Climate Satellite tv for pc (AWS) Mission are to offer world measurements of the ambiance for use as a part of Numerical Climate Prediction (NWP) and in Nowcasting (NWC). These measurements may even assist local weather analysis and functions. The principle AWS measurements are humidity and temperature sounding of the ambiance.
Whereas the polar areas are properly served by polar-orbiting satellites, the suitability of meteorological geostationary observations is restricted by geometric constraints. Specifically, atmospheric water vapour can change quickly and would profit tremendously from extra frequent observations. The revisit time necessities, recognized by end-users can solely be met with a constellation of satellites. Subsequently, a constellation of polar-orbiting satellites offering passive microwave soundings of the ambiance with frequent revisit occasions over the polar areas is proposed to handle these points.
AWS has a single Payload (cross-track scanning microwave radiometer) and the general satellite tv for pc design is considerably smaller in comparison with the present polar-orbiting meteorological satellites. Streamlined Satellite tv for pc and Payload design along with steady manufacturing line manufacturing would allow inexpensive AWS satellite tv for pc constellation.
The AWS Floor Phase features a extremely revolutionary Digital Beam Forming Community (DBFN) (Thales Alenia House) in Svalbard, permitting a number of satellite tv for pc to be tracked concurrently from a single antenna array electronically with none shifting components. This know-how is important for the potential constellation section of AWS to assist the low latency wants of the constellation.
The AWS (Proto-Flight Mannequin) satellite tv for pc launch is deliberate in 2024 and the AWS constellation implementation might begin instantly after.
The commercial group led by OHB Sweden consists of three core-members. OHB Sweden as mission prime, platform supplier and system integrator, Omnisys devices AB as Instrument prime and Thales Alenia House as Floor Phase (incl. operations) prime. Your entire AWS industrial group consists of 31 firms (together with 14 SME’s) from 12 totally different international locations.
OHB Sweden with its intensive expertise of over three a long time within the design, improvement and testing of low-cost small satellite tv for pc missions will use its profitable heritage InnoSat platform, demonstrating a costeffective “new-space” strategy inside this program. The InnoSat platform shall be barely upgraded in such a means that it meets the potential constellation wants, serving as a flexible and versatile platform appropriate for all constellation orbits.