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The silver shield of the James Webb Space Telescope opened in a complex process

BingMag.com The <b>silver</b> <b>shield</b> of the <b>James</b> <b>Webb</b> <b>Space</b> <b>Telescope</b> <b>opened</b> in a <b>complex</b> process

The James Webb Space Telescope has now taken on its final diamond-like shape, and with the successful expansion of the second base, the operation to open the silver solar shield is complete. The observatory underwent another milestone in its critical deployment.

As the James Webb Space Telescope moves through space, the deployment process will take place under the guidance of a ground-based team. Over the past few days, many steps have been taken, including the opening of the front and rear pallets, the height of the adjustable tower, and the protective cover to reach the current turning point. But they completed the latest stages of the spacecraft.

Last night (this morning in Iran), the first arm of the two solar shield arms, the left pole (Port arm), was opened. This important step was planned to take place earlier in the day, but the mission team stopped the operation to confirm that the sun visor, as the last stage of preparation before the foundations were laid, was fully open.

Switches to be made They showed that the cover was properly assembled, they were not activated, however, the second and third alternative methods confirmed the full opening of the protective cover. First, the temperature data appears to indicate that the sun visor is open, blocking a sensor from receiving light. The gyroscope sensors, on the other hand, show a movement that indicates the activation of the sun visor release devices.

After analyzing the data, the mission management decided to proceed with the deployment sequence as planned. Thus, the installation of the five bases of the left center telescopic base was started by the engine at about 13:30 Eastern time zone (22:00 Tehran time) and this arm expanded slowly until finally at 16:49 Eastern time zone (01:00). : 19 in the morning, Tehran time). Sharghi (03:01 AM Tehran time) started. Finally, at 22:13 Eastern time (06:43 Tehran time), the base was well placed and the Telescope took on its final kite-like or diamond-like shape.

Open Completion The opening of the sun visor and the middle pedestal in the last two days is an important turning point for the web, as all 107 sun visor shell release devices, each of which had to work properly, have now been successfully opened. The Web has 178 of these motor actuators, 107 of which were used to secure and retract the sunshade before deployment.

They opened out, pulling on the accumulated silver shells of the sunshade attached to them. This caused the solar cover to extend its full 14.2 meters across the observatory.

" In fact, they are solar shield killers and carry a lot of weight to open the shells to give the observatory complex its current symbolic shape.

While today, the deployment process took longer than expected, which led to The reason for the cautious progress of the operations team was to move according to the protocols set up to deal with unpredictable situations, but it is possible that the initial planning will change in the next steps of the web deployment.

"Today's operation is an example of why we say we do not think the deployment plan will change, but at the same time we expect change," he said. Today's mission team did what we practiced for such a situation: stop, evaluate, and progress purposefully according to a roadmap. We still have a long way to go to finalize the James Webb deployment process. "

BingMag.com The <b>silver</b> <b>shield</b> of the <b>James</b> <b>Webb</b> <b>Space</b> <b>Telescope</b> <b>opened</b> in a <b>complex</b> process

James Webb's massive five-layer sunshade structure
Credit: Northrop Grumman/Alex Evers

while now with this important step, the two middle arms are locked in their final position And the multilayer sunshade shells are in place, now the web team is moving towards the final stage of sunscreen installation: stretching.

In the coming days, the team will separate each of the five layers of sunscreen and It is then stretched separately to make it final and firm. This creates Space between the shells so that the heat can radiate out and each successive layer of sunscreen stays cooler than its bottom layer.

Web engineers will begin the stretching process with the bottom layer: The largest and flattest layer, which is the closest layer to the sun and reaches the highest temperature. They extend to the fifth and smallest layers, respectively, closest to the telescope's main mirror. Kabul, spin. Stretching the web takes at least two days, but may take longer due to the complexity of the process and the flexibility of the timeline.

  • James Telescope How is the Web Transforming Our World? Li

Cover Photo: Graphic Design of the James Webb Space Telescope Solar shield Deployment
Credit: NASA

Sources: NASA , Space


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Tags: silver, shield, james, webb, space, telescope, opened, complex, process

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