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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: Exploration of energization and radiation in geospace (ERG): challenges, development, and operation of satellite systems

Fig. 4

System block diagram. The bold lines delineate the three different SpaceWire networks within the ERG satellite system. The first one is for the management subsystem. A satellite management unit, a data recorder, a telemetry and command interface module, an attitude and orbit control processor, a power control unit, a heater control unit, and mission data processor electronics are connected through SpaceWire network router 1. The second network is for the attitude and orbit control subsystem. Within the network, the AOCP is connected to four attitude control interface modules (ACSSA, ACMDZ, ACANA, and ACVDI) through SpaceWire network router 2, and each ACIM is connected to the AOCS sensors and actuators. The last network is dedicated to the mission operations. Each mission instrument has a SpaceWire router and consists of a ring-type network when considered in the aggregate system

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