The generational observatory is en route to its parking spot and getting ready to test its mirrors and instruments.
"Each instrument has their own set of milestones," Durning said."That will be challenging to [calibrate] them once they reach temperature, making sure they get it all aligned.
Mirror deployment will start on Tuesday , explained Lee Feinberg, Webb's optical telescope element manager at Goddard, in the press conference. The mirrors were folded for the stresses of launch and it will take somewhere between 10 and 12 days to"get all of the mirrors forward by roughly half an inch, and that puts them in a position where we can do the detailed optical alignment," Feinberg said.
Basic alignment will take about three months to get the them ready for"first light", when the telescope will take its first testing image as part of the alignment process. NASA warned those first images will most likely be blurry, since the telescope has not been fully aligned yet. It will take more imaging and testing to get the configuration right.An animation shows the orbit of the James Webb Space Telescope around Lagrange point 2, or L2.
"Right around day 120 is when we think the entire telescope will be aligned," Durning said, which would put the full alignment date around April 24, depending on how the commissioning process goes. Instrument commissioning will be happening in parallel with the various instrument team partners, he added, who will be"turning on different instruments and ... then [will] use those instruments to align the telescope and to further refine the telescope."
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