Author Topic: James Webb Space Telescope  (Read 26031 times)

Offline bknight

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Re: James Webb Space Telescope
« Reply #90 on: January 30, 2020, 02:10:51 PM »
I'd rather see them testing vigorously and thoroughly than succumbing to time pressure, skipping tests and ending up "doing a Hubble". This beast will be at L2.... for all intents and purposes, unreachable if the slightest thing goes wrong. There will be no JWST Repair Missions if that happens.

That's why I started the thread, my concerns for doing this right, they only have one chance.
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Offline bknight

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Re: James Webb Space Telescope
« Reply #91 on: May 15, 2020, 03:18:00 PM »
James Webb is Fully Stowed Into its Launch Configuration.

https://www.universetoday.com/146091/james-webb-is-fully-stowed-into-its-launch-configuration/

Scheduled liftoff: March 30th, 2021, (or maybe July 2021.)
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Offline Peter B

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Re: James Webb Space Telescope
« Reply #92 on: May 15, 2020, 10:05:33 PM »
James Webb is Fully Stowed Into its Launch Configuration.

https://www.universetoday.com/146091/james-webb-is-fully-stowed-into-its-launch-configuration/

Scheduled liftoff: March 30th, 2021, (or maybe July 2021.)

Good luck to it. I hope it doesn't experience any Galileo-style problems due to the delays in launching it.

Offline bknight

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Re: James Webb Space Telescope
« Reply #93 on: June 10, 2020, 11:38:01 AM »
James Webb is Fully Stowed Into its Launch Configuration.

https://www.universetoday.com/146091/james-webb-is-fully-stowed-into-its-launch-configuration/

Scheduled liftoff: March 30th, 2021, (or maybe July 2021.)

Good luck to it. I hope it doesn't experience any Galileo-style problems due to the delays in launching it.

Well
Quote
To test the James Webb Space Telescope’s readiness for its journey in space, technicians successfully commanded it to deploy and extend a critical part of the observatory known as the Deployable Tower Assembly.

The primary purpose of the deployable tower is to create a large gap between the upper part of the observatory that houses its iconic gold mirrors and scientific instruments, and the lower section known as the spacecraft bus which holds its comparatively warm electronics and propulsion systems. By creating a space between the two, it allows for Webb’s active and passive cooling systems to bring its mirrors and sensors down to staggeringly cold temperatures required to perform optimal science.

https://www.nasa.gov/feature/goddard/2020/tower-extension-test-a-success-for-nasa-s-james-webb-space-telescope

Looks like they read your mind, I also hope it doesn't experience any issues with this complicated procedure.
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan

Offline bknight

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Re: James Webb Space Telescope
« Reply #94 on: June 11, 2020, 08:27:52 AM »
Planned March 2021 launch date is likely to slip to July:
https://arstechnica.com/science/2020/01/report-webb-telescope-has-just-a-12-percent-chance-of-making-launch-date/



And just after NASA announces,
Quote
Despite initial comments by NASA officials that work would be suspended entirely on the telescope, activities did continue there, including a test announced by NASA June 9 of its Deployable Tower Assembly that separates the mirror from the spacecraft bus.

the agency confirmed the Mar 21 launch date is a no go.

https://spacenews.com/nasa-confirms-jwst-will-miss-march-2021-launch-date/

Looks like the July is a better bet, but I'm not that hopeful since they didn't even list a target date.
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
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Offline bknight

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Re: James Webb Space Telescope
« Reply #95 on: June 15, 2020, 03:37:52 PM »
Here is a comprehensive update by Fraser Cain.
https://www.universetoday.com/146506/well-it-looks-like-james-webb-is-getting-delayed-again-but-it-should-still-launch-in-2021/

Quote
“I’m very optimistic about this thing getting off the launch pad in 2021.”
Thomas Zurbuchen, NASA Associate Administrator for Science.

I'm hoping everything comes together.
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan

Offline bknight

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Re: James Webb Space Telescope
« Reply #96 on: July 21, 2020, 04:00:26 PM »
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
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Offline ajv

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Re: James Webb Space Telescope
« Reply #97 on: July 21, 2020, 07:52:51 PM »
... still aiming for Oct 2121 launch.

Yeah, probably.

Offline bknight

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Re: James Webb Space Telescope
« Reply #98 on: July 26, 2020, 09:50:37 AM »
Actually I made a fat finger entry on the launch date it should have been Oct. 2021.
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Offline apollo16uvc

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Re: James Webb Space Telescope
« Reply #99 on: July 26, 2020, 02:18:06 PM »
If this thing fails there won't be a budget for anything comparable for the foreseeable 50 years.

Much like how many won't see anything comparable to the Pioneer or Voyager probes in their lifetime. (Partially due to a shortage on the radioactive material with a long enough lifespan.)
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Offline bknight

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Re: James Webb Space Telescope
« Reply #100 on: August 31, 2020, 03:42:39 PM »
The engineers put the spacecraft through on ground tests.
https://www.universetoday.com/147597/james-webb-is-working-perfectly-on-the-ground-next-trick-doing-it-from-space/

Hopefully still looking to Mar 2021.
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan