BackForward Satellite Programme: Polarized Submillimeter Ice-cloud Radiometer 

Programme details
Programme description
  • One of NASA's lower cost Earth Venture Instruments (EVI-6)
  • Twin satellites with dual band radiometers
  • In drifting orbits at low inclination separated by 3-8 hrs
  • 2 year lifetime
  • PolSIR will provide key observational constraints on ice properties in climate models and enable modelers to develop more accurate cloud parameterizations. 
  • Some details here.
Data circulation
Agencies NASA
Programme lifetime 2029 - 2031
Associated satellites and instruments

Note: red tag => no longer operational , green tag => operational , blue tag => planned