James Webb Space Telescope- Canada's FGS successfully used in mirror alignment phase

The Fine Guidance Sensor (FGS) on the James Webb Space Telescope, a mission-critical element designed and built in Canada, was used in tracking mode for the first time as part of the telescope's 18 golden hexagonal mirror alignment process.

Longueuil, Quebec, February 17, 2022 — The Fine Guidance Sensor (FGS) on the James Webb Space Telescope, a mission-critical element designed and built in Canada, was used in tracking mode for the first time as part of the telescope's 18 golden hexagonal mirror alignment process.

On February 13, the Webb team performed "Line of Sight" testing that confirmed the FGS's ability to "lock on" to a specific guide star in tracking mode. This mode allows the FGS to transmit highly precise information to Webb's positional system 16 times per second.

The successful FGS operation is the latest in a series of smooth manoeuvres for the massive observatory. Read more.

If you are interested in getting in touch with a CSA expert or are looking for more information on Canada's contribution to the Webb Telescope, contact the CSA's media relations office: asc.medias-media.csa@asc-csa.gc.ca

Additional links

• Video playlist – James Webb Space Telescope
• James Webb Space Telescope: What's New?
• Information kit - James Webb Space Telescope

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Canadian Space Agency
Media Relations Office
Telephone: 450-926-4370
Website: asc-csa.gc.ca
Email: asc.medias-media.csa@asc-csa.gc.ca
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