Indian Mini Satellite (IMS) is a family of modular- mini satellite buses developed by the Indian Space Research Organisation (ISRO).
Variants +Indian Mini Satellite (Variants)FeatureIMS-1IMS-2IMS-3 (Planned IMS-2 Derivative)Launch MassMaximum bus mass Payload mass Propellant Design lifetime 2 years5 yearsRaw bus voltage 28-33 Volts28-33 Volts28-42 VoltsSolar Array Power 330 Watts (EOL)675 Watts (EOL)850 Watts (BOL)850 Watts (BOL)Payload power 30 Watts (Continuous)70 Watts (Duty Cycle)250 Watts (Continuous)600 Watts (Duty Cycle)250 Watts (Continuous)400 Watts (Duty Cycle)Attitude Control 3-axis stabilizedFour Reaction WheelsSingle 1N thruster3-axis stabilizedFour Reaction WheelsMono-propellant RCSFour 1N thrustersFour 0.2N thrustersPointing Accuracy±0.1° (3σ) (all axes)± 0.1° (all axes)± 0.1° (all axes)SSR Storage 32 Gb32 Gb (SDRAM)256 Gb (Flash Memory)32 Gb (SDRAM)256 Gb (Flash Memory)Payload data storage ≤ 16 Gb≤ 32 GbDownlink ≤ 8 Mbit/s DL rate≤ 105 Mbit/s DL rate≤ 160 Mbit/s DL rateMissions IMS-1 Youthsat Microsat-TD SDX01 & SDX02 SARAL- ScatSat-1 EMISAT HySIS XPoSat
See also
Comparison of satellite buses
References