Maritime Monitoring and Messaging Micro-Satellite
 The Maritime Monitoring and Messaging Micro-Satellite (M3MSat) is a tele-detection satellite being developed by the Canadian Space Agency. Its mission is to demonstrate and test the technology to assess the utility of having in space an Automatic Identification System (AIS) for reading signals from vessels to better manage marine transport in Canadian waters. The system will be supported by an instrument called a Low Data Rate Service (LDRS) which transmits AIS messages to ground sensors.