Author Topic: James Webb Space Telescope  (Read 35489 times)

Offline raven

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Re: James Webb Space Telescope
« Reply #120 on: September 11, 2021, 07:17:56 PM »
It would be an awesome Christmas present if it goes up successfully then.

And the deployment goes successfully.
Indeed so. Hopefully they learned the lessons from Galileo and made extra care to prevent vacuum welding.

Offline bknight

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Re: James Webb Space Telescope
« Reply #121 on: September 12, 2021, 10:09:52 PM »
It would be an awesome Christmas present if it goes up successfully then.

And the deployment goes successfully.
Indeed so. Hopefully they learned the lessons from Galileo and made extra care to prevent vacuum welding.

Umm what is vacuum welding?
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan

Offline raven

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Re: James Webb Space Telescope
« Reply #122 on: September 13, 2021, 01:07:52 AM »
It would be an awesome Christmas present if it goes up successfully then.

And the deployment goes successfully.
Indeed so. Hopefully they learned the lessons from Galileo and made extra care to prevent vacuum welding.

Umm what is vacuum welding?
It's when materials bond together spontaneously in a vacuum. It is believed to be what affected the Galileo high-gain antenna, after it lost its lubrication in the long storage between its planned launch date and the actual launch date, preventing it from deploying.

Offline bknight

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Re: James Webb Space Telescope
« Reply #123 on: September 13, 2021, 11:11:33 AM »
It would be an awesome Christmas present if it goes up successfully then.

And the deployment goes successfully.
Indeed so. Hopefully they learned the lessons from Galileo and made extra care to prevent vacuum welding.

Umm what is vacuum welding?
It's when materials bond together spontaneously in a vacuum. It is believed to be what affected the Galileo high-gain antenna, after it lost its lubrication in the long storage between its planned launch date and the actual launch date, preventing it from deploying.

This is a first for me, but it does sound plausible.
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 #124 on: October 11, 2021, 12:28:49 PM »
Fraser has an interesting link.

https://www.universetoday.com/152863/jwsts-30-days-of-terror/

Quote
But even now, as the telescope might be secretly traveling by cargo ship to the European Space Agency (ESA) launch site in French Guiana

This action resembles my initial apprehension with launching via ESA.  Why would NASA ship in secret unless they perceive a threat and what security at the launch site is provided by ESA?  ESA had some earlier issues with the launch vehicle that seems to be mitigated, hopefully.
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan

Offline Peter B

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Re: James Webb Space Telescope
« Reply #125 on: October 11, 2021, 07:17:12 PM »
Fraser has an interesting link.

https://www.universetoday.com/152863/jwsts-30-days-of-terror/

Quote
But even now, as the telescope might be secretly traveling by cargo ship to the European Space Agency (ESA) launch site in French Guiana

This action resembles my initial apprehension with launching via ESA.  Why would NASA ship in secret unless they perceive a threat and what security at the launch site is provided by ESA?  ESA had some earlier issues with the launch vehicle that seems to be mitigated, hopefully.

Do they perceive a threat? Not necessarily, as far as I can see. I wonder if this is simply the best way to manage risks they can't control in the same way they could control risks within the USA.

Offline bknight

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Re: James Webb Space Telescope
« Reply #126 on: October 11, 2021, 11:03:09 PM »
Fraser has an interesting link.

https://www.universetoday.com/152863/jwsts-30-days-of-terror/

Quote
But even now, as the telescope might be secretly traveling by cargo ship to the European Space Agency (ESA) launch site in French Guiana

This action resembles my initial apprehension with launching via ESA.  Why would NASA ship in secret unless they perceive a threat and what security at the launch site is provided by ESA?  ESA had some earlier issues with the launch vehicle that seems to be mitigated, hopefully.

Do they perceive a threat? Not necessarily, as far as I can see. I wonder if this is simply the best way to manage risks they can't control in the same way they could control risks within the USA.
Interesting but shipping secretly?  Everyone knows it has to travel through the Panama Canal then onto Guiana.
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan

Offline jfb

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Re: James Webb Space Telescope
« Reply #127 on: October 12, 2021, 01:47:59 PM »
Fraser has an interesting link.

https://www.universetoday.com/152863/jwsts-30-days-of-terror/

Quote
But even now, as the telescope might be secretly traveling by cargo ship to the European Space Agency (ESA) launch site in French Guiana

This action resembles my initial apprehension with launching via ESA.  Why would NASA ship in secret unless they perceive a threat and what security at the launch site is provided by ESA?  ESA had some earlier issues with the launch vehicle that seems to be mitigated, hopefully.

Do they perceive a threat? Not necessarily, as far as I can see. I wonder if this is simply the best way to manage risks they can't control in the same way they could control risks within the USA.
Interesting but shipping secretly?  Everyone knows it has to travel through the Panama Canal then onto Guiana.

Yeah, but they don't know which boat. 

Offline bknight

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Re: James Webb Space Telescope
« Reply #128 on: October 12, 2021, 01:53:02 PM »
Fraser has an interesting link.

https://www.universetoday.com/152863/jwsts-30-days-of-terror/

Quote
But even now, as the telescope might be secretly traveling by cargo ship to the European Space Agency (ESA) launch site in French Guiana

This action resembles my initial apprehension with launching via ESA.  Why would NASA ship in secret unless they perceive a threat and what security at the launch site is provided by ESA?  ESA had some earlier issues with the launch vehicle that seems to be mitigated, hopefully.

Do they perceive a threat? Not necessarily, as far as I can see. I wonder if this is simply the best way to manage risks they can't control in the same way they could control risks within the USA.
Interesting but shipping secretly?  Everyone knows it has to travel through the Panama Canal then onto Guiana.

Yeah, but they don't know which boat.
Very true, hence the secrecy because NASA seems to be concerned with the security o the telescope in my mind.  We can bounce this off each other as it seems you have a different mindset than I.
I'm hoping for the best outcome.
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan

Offline jfb

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Re: James Webb Space Telescope
« Reply #129 on: October 12, 2021, 02:30:32 PM »
Fraser has an interesting link.

https://www.universetoday.com/152863/jwsts-30-days-of-terror/

Quote
But even now, as the telescope might be secretly traveling by cargo ship to the European Space Agency (ESA) launch site in French Guiana

This action resembles my initial apprehension with launching via ESA.  Why would NASA ship in secret unless they perceive a threat and what security at the launch site is provided by ESA?  ESA had some earlier issues with the launch vehicle that seems to be mitigated, hopefully.

Do they perceive a threat? Not necessarily, as far as I can see. I wonder if this is simply the best way to manage risks they can't control in the same way they could control risks within the USA.
Interesting but shipping secretly?  Everyone knows it has to travel through the Panama Canal then onto Guiana.

Yeah, but they don't know which boat.
Very true, hence the secrecy because NASA seems to be concerned with the security o the telescope in my mind.  We can bounce this off each other as it seems you have a different mindset than I.
I'm hoping for the best outcome.

As long as it took and as much as it cost to build I'm not going to begrudge a little (okay, maybe more than a little) paranoia. There's too much money and too many careers wrapped up in this project to have it be damaged or lost in transit.  I seriously doubt the JWST is on anyone's radar as a target, but on the other hand I wouldn't want to be the one in front of a Congressional committee explaining why it got blowed up by some dipshit with an RPG. 

I would much rather it go up on a domestic launcher, but I don't get to make those calls (and this arrangement was made well before Falcon Heavy was flying). 

Offline bknight

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Re: James Webb Space Telescope
« Reply #130 on: October 12, 2021, 07:54:43 PM »
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 #131 on: October 13, 2021, 11:18:45 AM »
And the travel pack with telescope has arrived at the launch port.
https://www.universetoday.com/152908/webb-has-arrived-safely-at-the-launch-site/
Truth needs no defense.  Nobody can take those footsteps I made on the surface of the moon away from me.
Eugene Cernan