James Webb Space Telescope begins historic mission

[ovrszd]

Very good video. Now my brain hurts. Thanks for posting this ruffdog!!!!

 

[cqaigy2]

Nice, now have another channel to check out.

 

[otlski]

A great article for the techies out there.

James Webb Space Telescope Archives - NASA Science

blogs.nasa.gov

How's that for collimation?

 

[rekees4300]

Webb delivers splendid star image.

https://www.cnet.com/news/james-webb-space-telescope-delivers-splendid-star-image-as-mirrors-align/

 

[ovrszd]

It's getting there!!!! I'm really excited to follow the progress this Summer!!!

This morning they are reporting a 447F degree temp difference between light side and dark side of scope.

 

[ovrszd]

First 7 pics from Webb. I expect detail will continue to sharpen. Makes my imagination do into overdrive.

 

[dstig1]

I am assuming those are all false color images since Webb is supposed to be primarily an IR scope? Pretty cool, in any case.

 

[ovrszd]

I am assuming those are all false color images since Webb is supposed to be primarily an IR scope? Pretty cool, in any case.

Correct. I misquote when I say pic. It creates the scene one tiny dot at a time with heat measurements and a programmed color for each temp.

Currently they are fine tuning and waiting for the scope to complete it's cooling. Today the scope itself in the dark is -396F. While the main control box on the sun side is +57F.

The process of creating the image is highly affected by heat loss from the scope and it's components.

Very intriguing process.

 

[dstig1]

The Where is Webb? page shows a lot of temp measurements but it is lacking in what the targets are. Like you said one temp is -396 which is like only 36 deg Kelvin or 36 above absolute zero. But what do they need it to be? Is it already there? Does it need to go lower? Enquiring minds...

 

[ovrszd]

The Where is Webb? page shows a lot of temp measurements but it is lacking in what the targets are. Like you said one temp is -396 which is like only 36 deg Kelvin or 36 above absolute zero. But what do they need it to be? Is it already there? Does it need to go lower? Enquiring minds...

Somewhere in my memory of early reports I am thinking they said 480F difference between the sun side and the dark scope. They are currently at 453F difference.