DMC3/TripleSat Constellation: Launched 2015

Under a £110m contract SSTL designed and manufactured three SSTL-300S1 satellite platforms, a new smallsat design which provides unparalleled 1 metre high resolution imagery with high speed downlink and 45 degree off-pointing.

The three satellites formed a new constellation, TripleSat, with daily revisit times which is crucial for change detection, disaster monitoring and response planning, and essential for acquiring cloud-free imagery. Beijing-based commercial imaging company, 21AT, has leased 100% of the imaging capacity of the three satellites.