Subj : Re: The James Webb Space Telescope
To   : August Abolins
From : Wilfred van Velzen
Date : Sun Dec 26 2021 05:06 pm

Hi August,

On 2021-12-26 09:48:00, you wrote to me:

 WvV>> * Originally in CHAT
 WvV>> * Crossposted in ASTRONOMY
 WvV>> * Crossposted in ASTRONET

 AA> FYI, it hasn't made it to ASTRONOMY on 396/45 yet.

That's odd, because he is connected to that area on my system, so he got it direct. (And my outbound is empty)

 WvV>> It's now, a day after launch, almost 240 km from earth.
                                            ^^^^^^
That should have been: 240K km! :/

 WvV>> That's not even half way the distance to the moon. And
 WvV>> about 16,5% of the distance to it's destination point in
 WvV>> space. It will take about 29 days [..]

 AA> The physics/math/mechanics to make all the happen seems
 AA> astonishing.

Indeed.

 WvV>> If you're interested you can follow it's journey..

 WvV>> https://jwst.nasa.gov/content/webbLaunch/whereIsWebb.html

 AA> That's a nice page. It kinda reminds me of the days watching
 AA> modem uploads/downloads.  :/

That also took days? ;-)

 AA> But what do the gaps between day 2-3, 9-10, 11-12, 14-15, 26-29
 AA> represent?

I don't know, I was wondering about that too. And it doesn't seem to correlate too well to the deployment steps...

 AA> At about 1.5-2mi/sec hope there isn't any teeny tiny debri that
 AA> can render it useless.

There's always that tiny, tiny, tiny risk. But it's already well beyond the "commercial" earth orbits, so that debri wouldn't be human made...

Bye, Wilfred.

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