The UK's Defence Science and Technology Laboratory (DSTL) at Porton Down has issued a tender for the development of a synthetic aperture radar (SAR) satellite reconnaissance system that weighs less than 500 kilograms, with the aim of having an on-orbit demonstrator satellite by 2022 and the start of an operational constellation for the UK's Ministry of Defence by 2025, subject to funding, according to a report in Wired UK.
