Posted on 01/14/2022 9:04:59 AM PST by zeestephen
This week, we have started the process of moving the mirror segments (all primary plus secondary) out of their stowed launch positions...Each mirror now needs to be deployed out by 12.5 millimeters (about half an inch) to get the pegs clear from the sockets...Each of the mirrors can be moved with incredibly fine precision, with adjustments as small as 10 nanometers...[Link also includes two helpful videos].
(Excerpt) Read more at scitechdaily.com ...
There’s nothing like the universe to bring you down to earth!
Telescopes and deep space probes, all meant to look at the history of the universe.
But, that’s the only thing we can look at.
No way to look at the present, unless it’s in the immediate environment.
The cruising speed is now down to just 663 mph.
I wonder what speed it has to be going to start its halo orbit of L2?
Also, the hot side of the telescope has maintained an almost constant temperature - currently 131F and 52F at the two measuring points.
The cold side dropped dramatically during the first day.
Both points are almost equal now - minus 328F and minus 329F.
Yeah but how does any of this make Muslims feel good about themselves?
Yeah but how does any of this make Muslims feel good about themselves?
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That’s the old 0bama mission. NASA like DHS has a new mission focusing on climate change. Gone are all things Space and all things national security. They were just to divisive, unfair and racist - space especially since it is a dark color.
I definitely agree with you about the slowdown. It seems like when they finished all of Webb’s deployment, they slowed it and are making minor teaks now Webb still has ten days to go before L2 orbit.
We have so much to gain from this project and I can’t wait.
The cruising speed is now down to just 663 mph.
I wonder what speed it has to be going to start its halo orbit of L2?
Also, the hot side of the telescope has maintained an almost constant temperature - currently 131F and 52F at the two measuring points.
The cold side dropped dramatically during the first day.
Both points are almost equal now - minus 328F and minus 329F.
After the first week, the cruise speed was already below 1,000 mph and dropping fast, which completely shocked me.
Like - is this thing even going to escape Earth’s gravity?
AND, to top that off, there’s a NASA bill currently going through Congress that was completely gutted and filled with democrat federal voting takeover rules.
No. L2 is a sweet spot between earth, sun and other gravitational bodies. It will be able to hold position without using too much of any fuel. Fuel use will be limited to pointing.
I had mentioned that in a previous blurb about Webb. My cousin work for the rocket manufacturer and he tells me that the are going aquording to schedule.
After the first week, the cruise speed was already below 1,000 mph and dropping fast, which completely shocked me.
Like - is this thing even going to escape Earth’s gravity?
I had no idea the speed would be this slow - possibly just a couple hundred mph.
A satellite in low Earth orbit is going 18,000 mph. In geo-stationary orbit, about 7,000 mph.
Per https://www.researchgate.net/figure/Geometry-and-time-line-for-an-L2-halo-orbit-The-L2-Lagrange-point-is-on-the-Sun-Earth_fig2_259063722, around 50 m/s (about 110 mph) is needed for insertion into a large-amplitude halo orbit at L2.
Thank you. You provided some great insight.
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