FGS On The James Webb Space Telescope
A guiding system, also called FGS, but using different technology, is also planned for the James Webb Space Telescope (JWST). It provides input for the planned observatory's attitude control system (ACS). During on-orbit commissioning of the JWST, the FGS will also provide pointing error signals during activities to achieve alignment and phasing of the segments of the deployable primary mirror.
The JWST FGS will be supplied by the Canadian Space Agency. To save on mass and volume it will be assembled in a single unit also containing the Tunable Filter Imager, but they are separate optical instruments.
Read more about this topic: Fine Guidance Sensor
Famous quotes containing the words james, webb, space and/or telescope:
“When the Revolutionaries ran short of gun wadding the Rev. James Caldwell ... broke open the church doors and seized an armful of Watts’ hymnbooks. The preacher threw them to the soldiers and shouted, “Give ‘em Watts, boys—give ‘em Watts!””
—For the State of New Jersey, U.S. public relief program (1935-1943)
““More human than human” is our motto.”
—David Webb Peoples, U.S. screenwriter, and Ridley Scott. Tyrell (Joe Turkel)
“from above, thin squeaks of radio static,
The captured fume of space foams in our ears—”
—Hart Crane (1899–1932)
“The telescope at one end of his beat,
And at the other end the microscope....”
—Robert Frost (1874–1963)