Claim: The Indian Mini Satellite (IMS) is a family of modular mini satellite buses developed by the National Space Agency, and the IMS-2 is heavier than the IMS-1 by more than 300Kg.
Evidence: IMS-1 is an Earth observation satellite in a sun-synchronous orbit. Indian Mini Satellite (IMS) is a family of modular mini satellite buses developed by the Indian Space Research Organisation (ISRO). IMS-1 is the first satellite to use ISRO's Indian Mini Satellite bus. Launch Mass 100 kilograms (220 lb) 450 kilograms (990 lb)