About ISRO ISRO Centres Programmes Decade Plan Space Science International Sponsored Research Space Services Antrix Corporation Training Facilities Press Release   ISRO Inertial Systems Unit (IISU)   Carries out development of inertial sensors and systems for satellites and launch vehicles covering navigation systems, satellite inertial systems, bearing and space tribology and inertial systems integration and simulation. Facilities include precision fabrication, assembly, integration and testing. Achivements include development of inertial systems for ISRO launch vehicles and satellites, solar array drive assemblies, scanning mechanisms, etc. Currently engaged in development of Inertal Navigation System for PSLV, GSLV, INSAT and IRS satellites.