1. . High energy density, high round-trip efficiency batteries-LiTiSZ at lIO-120 Whkg at 10-20 Ah sizes with life > 1000 cycles >90% efficient DC/DC converters High density, low power space qualified micro-electronics packaging High efficiency, low mass, porous (minimal shading of solar arrays, low drag coefficient) reflect array high gain antenna High efficiency, low mass Xband solid state power amplifier Monolithic miniature power distribution switches Laser-initiated pyrotechnics Integrated high-density, low power microelectronics X-band transponder (receiver, exciter, command detector, telemetry modulator) Low volume, low power integrated star tracker sensor/ electronics