What have Canadians contributed to space?

The Canadian Space Agency (CSA) has accomplished quite a lot and is very valuable to the International Space Station (ISS). With the launch of Alouette 1 in 1962 Canada became the third country to put a man-made satellite into space. It was launched by NASA before the CSA was created. The most widely know Canadian contributions to space travel are the Canadarm on the Space Shuttles and Canadarm2 on the Mobile Servicing Station on the ISS. Also the Orbiter Boom Sensor System which is used to inspect the Space Shuttle's Thermal Protection System while in orbit. Canada is also know for it's number of Astronauts that have contributed to space science. The CSA has also contributed to the satellite CludSat (launched in 1998) and the Earth Observing System (EOS launched in 1999). The EOS is responsible for MOPITT or Measurements of Pollutions in the Troposphere.