NASA has begun a multi-day process to tighten the tension on Webb's huge sunshield.
Engineers are now tensioning the first layer of the sunshield, which will continue through Monday if that goes to plan. Once complete, the Webb team will assess the deployment success and adapt the following four layers as required. The schedule calls for the deployment to finish on Wednesday , but the timing of layer tensioning may vary depending on the engineering data Webb produces during its sequence.
of Webb to make sure that the telescope was ready. They found two issues that were within the range of the telescope's engineering parameters, but that they wanted to double-check out of caution. Lo added that the previous temperature spike was well within limits, at a peak motor temperature of 327 degrees Kelvin . Engineers were initially expecting temperatures of 320 Kelvin , but the motors are rated as high as about 340 Kelvin "We have plenty of operating margin," Lo said.
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