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Deutsche version
SMOS - Cal/Val
Bundesstra├če 53
D-20146 Hamburg
Tel.: +49 40 42838-2103
Fax: +49 40 42838-7471
E-Mail:  meike-sena.martins(at)


Start 2. November 2009
DurationThree years with a possible extension of two years
Orbit    Low-Earth Orbit (LEO), Geosynchronous Earth Orbit (GEO), height:763 km, 98.4┬░ declination, with morning and evening passages
Payload 2-D interferometric L-Band radiometer(1.4GHz, 21cm wavelength)
Platform Proteus CNES Alcatel Platform
WeightPlatform 317 kg (699 lb) and payload 366kg (807 lb)
Power inputup to 900Watt (max. 525 W for payload)
Position and orbit-control unit3-axis stabilized, star trackers, magnetometers, GPS, solar sensors
Data storage on board 
SSolid-state recorder, capacity: 2 x 20 Gbits, payload data:15 Gbits/day
Telemetry & Command X-band data downlink: 16.8 Mbps S-band Controllink: 4kbps uplink, 722 kbps downlink
Launch Vehicle     Rockot (transformed SS-19), from Plesetsk, Russia
Control base 
CNES Proteus Control und Command Centre (CCC) in Toulouse through the S-band Antenna in Kiruna, Sweden payload operation prepared by Payload Operations Programming Centre and operated via CCC
Acquisitioning and processing of payload data Payload Data Processing Centre (PDPC) and X-band Acquisition Station (XBAS) in Villafranca, Spain. SMOS User Service divided between Villafranca and ESA-ESRIN