The Indian Mini Satellite (IMS) is a family of modular mini satellite buses developed by the Indian Space Research Organisation, and the IMS-2 is heavier than the IMS-1 by more than 300Kg.
Indian Mini Satellite (IMS) is a family of modular mini satellite buses developed by the Indian Space Research Organisation (ISRO). IMS-1 100 kilograms (220 lb) IMS-2 450 kilograms (990 lb) 
