Space Based Radar To Observe Space Debris

Space debris of 1÷3mm size is known to be hazardous for astronauts and space vehicles. At the same time the possibility to notice such objects by ground based optical and radar devices in the nearest future is rather problematic. Here we propose an idea of space radar for observation of cicumterrestrial space debris. The radar works in short wave part of millimetre band, which is mostly suitable for this purpose. The radar provides detecting and tracking of 1mm size objects within 40000m2 area. The radar antenna is Phased Array Antenna with 2m diameter. The radar's weight is about 100kg, the consumed power - 2.5kW.