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Webb reaches alignment milestone

Written by  Wednesday, 16 March 2022 14:30
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Webb reaches alignment milestone: image of focused star

Following the completion of critical mirror alignment steps, the NASA/ESA/CSA James Webb Space Telescope team expects that Webb’s optical performance will be able to meet or exceed the science goals the observatory was built to achieve.

Webb reaches alignment milestone (selfie)
Webb reaches alignment milestone (selfie)

Over the next six weeks, the team will proceed through the remaining alignment steps before final science instrument preparations. The team will further align the telescope to include the Near-Infrared Spectrograph, Mid-Infrared Instrument, and Near InfraRed Imager and Slitless Spectrograph. In this phase of the process, an algorithm will evaluate the performance of each instrument and then calculate the final corrections needed to achieve a well-aligned telescope across all science instruments. Following this, Webb’s final alignment step will begin, and the team will adjust any small, residual positioning errors in the mirror segments.

The team is on track to conclude all aspects of Optical Telescope Element alignment by early May, if not sooner, before moving on to approximately two months of science instrument preparations. Webb’s first full-resolution imagery and science data will be released in the summer.

Webb is the world's premier space science observatory and once fully operational, will help solve mysteries in our Solar System, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it.

Webb is an international partnership between NASA, ESA and the Canadian Space Agency (CSA).

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