Author Topic: Anyone else excited/nervous about the upcoming James Webb Telescope launch?  (Read 2007 times)

Rupert

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Amazing bit of engineering.  Have you seem where its at?
https://webb.nasa.gov/content/webbLaunch/whereIsWebb.html

Just had a peek.
Thanks for the updates :)
... Make sure you live before you die.

rcjordan

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>Thanks

Welcome


James Webb Space Telescope deploys radiator to keep instruments cool

 the telescope's Aft Deployable Instrument Radiator (ADIR)  is a 4 foot (1.2 meters) by 8 foot (2.4 m) panel

rcjordan

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Today, the first of two primary mirror wings, or side panels, was deployed and latched successfully.
Now that the port side wing panel is locked in place, ground teams will prepare to deploy and latch the starboard panel tomorrow.

Upon completion, Webb will have concluded its major deployment sequence.

rcjordan

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James Webb Completely and Successfully Unfolded

+

ION:
The Hubble telescope was deployed from Space Shuttle Discovery on April 25, 1990, and has been in operation for more than 31 years.
« Last Edit: January 08, 2022, 07:48:57 PM by rcjordan »

littleman

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That's all pretty amazing.  I sure hope we start getting some science from it soon.

rcjordan

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NASA has begun a four month-long process of bringing the James Webb Space Telescope into focus so it can start taking pictures of the universe by May.

ergophobe

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Wow. That's a long time to get something into focus. I think its utility for sports photography will be very limited.

littleman

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Quote
With the successful deployment & latching of our last mirror wing, that's:
50 major deployments, complete.
178 pins, released.
20+ years of work, realized.

https://twitter.com/NASAWebb/status/1479880178021060609

rcjordan

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Webb Mirror Segment Deployments Complete

“Today, the James Webb Space Telescope team completed the mirror segment deployments. As part of this effort, the motors made over a million revolutions this week, controlled through 20 cryogenic electronics boxes on the telescope. The mirror deployment team incrementally moved all 132 actuators located on the back of the primary mirror segments and secondary mirror. The primary mirror segments were driven 12.5 millimeters away from the telescope structure. Using six motors that deploy each segment approximately half the length of a paper clip, these actuators clear the mirrors from their launch restraints and give each segment enough space to later be adjusted in other directions to the optical starting position for the upcoming wavefront alignment process....

Next up in the wavefront process, we will be moving mirrors in the micron and nanometer ranges to reach the final optical positions for an aligned telescope. The process of telescope alignment will take approximately three months.”

rcjordan

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Webb space telescope nears its destination almost a million miles from Earth, ready for critical mirror alignment.

Once aligned and its instruments calibrated, Webb will be 100 times more powerful than Hubble, NASA says — so sensitive to infrared light that it could detect the faint heat of a bumble bee as far away as the moon.