LISA

tullio
tullio
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Topic 195484

JPL is working on LISA:
LISA
Tullio

Cannibal Corpse
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LISA

Just think...working in conjunction with the James Web ST(when the get the darn thing gets up,2011,2012??) LISA finds sumtin good in the GW spectrum, just point that bad boy and see what we got! I do understand the JWST has nothing to do with GW, but we can see the origin in the rest of the EM spectrum.

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tullio
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I think that 2014 is the

I think that 2014 is the earliest possible date for the launch of JWST. But it has financial problems due to cost overruns, just like the ITER fusion experiment in France. These Big Science projects always cost more than what was planned.
Tullio

Bikeman (Heinz-Bernd Eggenstein)
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Using EM observations as

Using EM observations as follow ups to triggers produced by LISA is a very valid concept indeed. I just stumbled over a fairly recent (today :-) ) paper on this idea, focusing on white dwarf mergers:

http://arxiv.org/abs/1011.6317.

CU
HBE

Rod
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RE: I think that 2014 is

Quote:
I think that 2014 is the earliest possible date for the launch of JWST. But it has financial problems due to cost overruns, just like the ITER fusion experiment in France. These Big Science projects always cost more than what was planned.
Tullio

The JWST is technically sound. I was hoping NASA had learnt their lessons after being hit across the head by a 2 by 4 so many times. What happens, let say a part of the project gets behind a little bit for some reason. Rather than throw a few million at it and run in the red for that fiscal year. They delay the fix for the next fiscal year when they can budget the money. This causes all sorts of problems because parts of the project that are depended on the fix are also delayed, gobbling up money and really not moving forward. The reason why they do this is because of intimidation. They do not want to get up in front of a dumbed downed congressional committee, explaining why they are running in the red that fiscal year with somebody saying they are out of control. So over the years project management keeps all these balls in air congress looks at it and sees they are on time and budget and then it all come crashing down. Failing to invest that few million ends up costing a few billion.

There are some who can live without wild things and some who cannot. - Aldo Leopold

Mike Hewson
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RE: The JWST is technically

Quote:
The JWST is technically sound. I was hoping NASA had learnt their lessons after being hit across the head by a 2 by 4 so many times. What happens, let say a part of the project gets behind a little bit for some reason. Rather than throw a few million at it and run in the red for that fiscal year. They delay the fix for the next fiscal year when they can budget the money. This causes all sorts of problems because parts of the project that are depended on the fix are also delayed, gobbling up money and really not moving forward. The reason why they do this is because of intimidation. They do not want to get up in front of a dumbed downed congressional committee, explaining why they are running in the red that fiscal year with somebody saying they are out of control. So over the years project management keeps all these balls in air congress looks at it and sees they are on time and budget and then it all come crashing down. Failing to invest that few million ends up costing a few billion.


That makes perfect sense, and is almost exactly analogous to many 'health care initiatives' that I was once involved in supervising here DownUnda. The effect of binding activities to fiscal year boundaries created any number of utter absurdities [ say, try getting a commercial lease in May for two months! You pay a premium for such a short lease first up ( if you can get it ), and then extra if you want to hold an option - all because of uncertainty come July 1 ]. I, and many others with some industry related skills, will not go within a light year of any 'government painted money' due to prior burns. So ( management ) tenders generally go unanswered now, with the effect of bureaucrats having to run it in lieu. They almost inevitably get taken to the cleaners because they have no industry knowledge, and the community's money is well & truly wasted for no community benefit. Been there, done that .....

As long as JWST folds out OK, then all should be well. At least it is being tested on the ground as fully assembled, and the optics production has an iterative loop with the spacecraft contractor ( c/w Hubble ).

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

Mike Hewson
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RE: Using EM observations

Quote:

Using EM observations as follow ups to triggers produced by LISA is a very valid concept indeed. I just stumbled over a fairly recent (today :-) ) paper on this idea, focusing on white dwarf mergers:

http://arxiv.org/abs/1011.6317.


It is exciting that tidal heating of the binary components ( at a few minutes per orbit ) will trigger an EM luminosity increase ( 'carbon ignition' )! So that gives a natural correlation b/w GW and EM observations.

It'll also give me, and E@H hopefully, something more to do come 2020+ .... :-)

Cheers, Mike.

( edit ) Will E@H get a slice of the LISA data pipeline? I do very much hope so, all the more to do in my retirement. :-) :-)

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

tolafoph
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RE: It'll also give me, and

Quote:
It'll also give me, and E@H hopefully, something more to do come 2020+ .... :-)

And then E@h should´ve a floating point speed of 10 to 20 PFLOPS or even 50 PFLOPS. So real-time-computing should be possible.

Mike Hewson
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RE: And then E@h should´ve

Quote:
And then E@h should´ve a floating point speed of 10 to 20 PFLOPS or even 50 PFLOPS. So real-time-computing should be possible.


Ah. By then I might even have some nano-scale mega-cluster on my bedside table, 1024 cores per unit, quantum-bit cache, with photonic pathways. And that's just the alarm clock! :-)

Cheers, Mike.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

tullio
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Last news on LISA Pathfinder

Last news on LISA Pathfinder from Nature:
LISA
Tullio

Martin Ryba
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RE: RE: I think that 2014

Quote:
Quote:
I think that 2014 is the earliest possible date for the launch of JWST. But it has financial problems due to cost overruns, just like the ITER fusion experiment in France. These Big Science projects always cost more than what was planned.
Tullio

The JWST is technically sound. I was hoping NASA had learnt their lessons after being hit across the head by a 2 by 4 so many times. What happens, let say a part of the project gets behind a little bit for some reason. Rather than throw a few million at it and run in the red for that fiscal year. They delay the fix for the next fiscal year when they can budget the money. This causes all sorts of problems because parts of the project that are depended on the fix are also delayed, gobbling up money and really not moving forward. The reason why they do this is because of intimidation. They do not want to get up in front of a dumbed downed congressional committee, explaining why they are running in the red that fiscal year with somebody saying they are out of control. So over the years project management keeps all these balls in air congress looks at it and sees they are on time and budget and then it all come crashing down. Failing to invest that few million ends up costing a few billion.

NASA also made the mistake of going with Northrup Grumman. Of all the major space primes, they are probably the worst when it comes to bidding aggressively to win and then making it back (and then some) on the cost overruns. And the cost overruns are always "someone else's" fault (subcontractor, government, etc.). We had a subcontract from them where they deliberately lied to the customer saying we were the reason they were late in order to cover up one of their screwups. Drives those of us who like to bid ethically nuts.

"Better is the enemy of the good." - Voltaire (should be memorized by every requirements lead)

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