OptiSAR Optical [UrtheCast]
UrtheCast prepares to build an earth observation constellation consisting of each eight radar and eight optical satellites.
The satellites are planned to be built by SSTL. They will operate in pairs consting of each a radar and optical satellite and will be deployed in two orbital planes, with eight satellites in polar sun-synchronous orbit and the other eight in a medium-inclination orbit at an angle of between 20 and 45° inclined to the equator.
The optical satellites with a launch mass of 670 kg, are to carry two imaging systems. One is push-broom imager with a ground resolution of 50 cm. The second is a 30-frames-per-second video system, which will be able to produce videos with a 40 cm ground resolution or still-images with a 25 cm ground resolution.
UrtheCast could not meet payments in 2019 and eventually went insolvent in 2021 and the UrtheDaily constellation was cancelled.
|Type / Application:||Earth observation|
|Power:||Solar arrays, batteries|