James Webb Space Telescope (Technical Post ONLY !)

helmutkohl

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overscan (PaulMM)

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Indeed. I hadn’t read this topic until someone reported it but it is off topic for sure.
 

Jemiba

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After repeated questions opened again, but for posts about technology or
scientific background only.
So, no discussions about naming or other borderline themes, please !
 

Flyaway

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Selection of the first James Webb Space Telescope General Observer Scientific Programmes

 

Flyaway

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Due to issues with Ariane 5 concerning fairing separation it is likely the launch of JWST will be furthered delayed.

View: https://twitter.com/spacenews_inc/status/1392807819821428736


Ariane 5 hasn’t flown since August 2020, leading to speculation there was an issue with the rocket. Arianespace acknowledges in a statement to SpaceNews that post-flight analyses of two recent launches raised concerns about fairing separation.


[…] industry sources familiar with the issue said that, on both the August 2020 launch and the previous Ariane launch in February 2020, the separation of the faring induced vibrations into the payload stack well above acceptable limits. Neither incident damaged any of the payloads, but raised concerns about the effect on future missions, including JWST.
 

Grey Havoc

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From the article:
1622624075896.png


Also from the article, on a darkly amusing note:
NASA plans to ship the telescope to the launch site by boat late this summer. (NASA is keeping precise plans vague due to concerns about piracy at sea. Seriously.) The space agency's chief of science, Thomas Zurbuchen, said Tuesday that "we don't have a lot of reserve" left in the schedule to prepare for shipment. However, he added that NASA and Webb's primary contractor, Northrop Grumman, are close to folding up the telescope and putting it into a shipping container. He said that this should happen toward the "end of August."
The fact that neither the French nor American navies are in any position to provide escorts for such an important shipment speaks volumes about the current governments in Paris and Washington, methinks.
 

Flyaway

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JWST passes launch review:


The launch date is waiting on the two Ariane 5 launches in front of it, with the first of those set for the 27th July 2021.
 

Flyaway

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Flyaway

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Archibald

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Nauka made it into orbit, although it nearly screwed the ISS. Now, up to JWST.
 

Flyaway

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JWST is set for launch on the 18/12/2021.

September 08, 2021
RELEASE 21-113
NASA Readies James Webb Space Telescope for December Launch
NASA’s James Webb Space Telescope being prepped for shipment to its launch site.
After successful completion of its final tests, NASA’s James Webb Space Telescope is seen here being prepared for shipment to its launch site.
Credits: NASA/Chris Gunn

NASA plans to launch the James Webb Space Telescope into orbit Dec. 18, 2021, to serve as the premier deep space observatory for the next decade.

The agency set the new target launch date in coordination with Arianespace after Webb recently and successfully completed its rigorous testing regimen – a major turning point for the mission. The new date also follows Arianespace successfully launching an Ariane 5 rocket in late July and scheduling a launch that will precede Webb. The July launch was the first for an Ariane 5 since August 2020.

Webb, an international program led by NASA with its partners ESA (European Space Agency) and the Canadian Space Agency, will launch on an Ariane 5 from Europe's Spaceport in French Guiana on the northeastern coast of South America. ESA is providing the Ariane 5.

The highly complex space telescope is currently resting in its final stow configuration at Northrop Grumman’s facilities in Redondo Beach, California.

“Webb is an exemplary mission that signifies the epitome of perseverance,” said Gregory L. Robinson, Webb’s program director at NASA Headquarters in Washington. “I am inspired by our dedicated team and our global partnerships that have made this incredible endeavor possible. Together, we’ve overcome technical obstacles along the way as well as challenges during the coronavirus pandemic. I also am grateful for the steadfast support of Congress. Now that we have an observatory and a rocket ready for launch, I am looking forward to the big day and the amazing science to come.”

The Webb team is preparing for shipment operations, during which the observatory will undergo final closeout procedures and packing for its journey to the launch site. The major elements of the Ariane 5 rocket that will carry Webb into space have safely arrived in Kourou, French Guiana, from Europe.

The Webb telescope’s revolutionary technology will explore every phase of cosmic history – from within our solar system to the most distant observable galaxies in the early universe, and everything in between. Webb will reveal new and unexpected discoveries, and help humankind understand the origins of the universe and our place in it.

For further information about the Webb mission, visit:

www.webb.nasa.gov

For information about the construction and engineering of the Webb telescope, visit:

www.nasa.gov/webb
 

Archibald

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Go Webb GOOO ! Time to break that curse. Nauka did it, SLS is on track, VG and B.O did it, too.

This year is THE year !
 

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