James Webb Space Telescope emerges successfully from final thermal vacuum test
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Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#2This is so cool!
Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#3How many megapixels is this one?
Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#4How many megapixels is this one?
The complete array works out at 937 megapixels. (As of 2011. It may have changed.)
Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#5How many megapixels is this one?
The main imager is the Near Infrared Camera. It has ten 2048x2048 sensors. They're configured in two kinda-independent groups with separate optics. Each group uses one of those sensors for longer wavelengths (so you get two lots of 2048x2048), and four of them for shorter wavelengths (so you get two lots of 4096x4096). The two modules can (and I guess usually will) be pointed at adjacent regions of the sky; I expect they'll overlap them a bit so you'll get slightly under 4096x2048 for the long wavelengths and slightly under 8192x4096 for the short. These are monochrome sensors but they have an array of filters they can swap in to measure different wavelengths.
There are several other instruments, including some other imagers.
Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#6This is so cool!
And hot.
Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#7Man, I really want this telescope to succeed its mission, but I just can't get over how complex its deployment procedure is. I am extremely pessimistic about it actually managing to deploy as planned.
Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#8Man, I really want this telescope to succeed its mission, but I just can't get over how complex its deployment procedure is. I am extremely pessimistic about it actually managing to deploy as planned.
Could you elaborate on the complexity, comparing it to other complex science projects that succeeded? I'm a layman, curious if this is actually riskier than what humanity has done so far.
Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#9At this price point it better be good. It has to make up for all the other astrophysics missions it killed with its (near) endless budget overruns.
Re: James Webb Space Telescope emerges successfully from final thermal vacuum test
#10Man, I really want this telescope to succeed its mission, but I just can't get over how complex its deployment procedure is. I am extremely pessimistic about it actually managing to deploy as planned.
Could you elaborate on the complexity, comparing it to other complex science projects that succeeded? I'm a layman, curious if this is actually riskier than what humanity has done so far.
I'm a layman too, and just watched this https://youtu.be/bTxLAGchWnA to better understand the complexity.