On 7/04/2012 4:15 AM, Frogwatch wrote:
> On Apr 6, 1:49 pm, "Jonathan"<
Callinst...@gmail.com> wrote:
>> "bob haller"<
hall...@aol.com> wrote in message
>>
>> news:82ef8263-8c61-41a0...@w5g2000vbp.googlegroups.com...
>>
>>> I wonder how long it will be before the station gets some real damage?
>>
>>> is it still true the station requires a atmosphere to cool station
>>> keeping equiptement. when the station was new there was discussions a
>>> depressurization could result in loss of control;. if a atmosphere
>>> leak occurred. no atmosphere control devices would overheat and shut
>>> down.
>>
>>> is that still the case today?
>>
>> The technology needed for missile defense should be very similar
>> to that needed for orbital space debris removal systems.
>> Hmm, let's see what I can google.....
>>
>> NASA, DARPA Host Space Junk
>> Wake-Up Call
>>
>> "There are some 300,000 objects larger than one centimeter
>> and they are all moving at hyper-velocity. The only way to
>> address this huge population is with laser technology,
>> Campbell noted.Orbital debris removal is a complex
>> problem, one that will require an umbrella of technologies
>> to do a complete solution, he stated."
>>
>> "Anything that can go up and grab a piece of debris and
>> bring it down well, it can also grab somebody's operational
>> satellite and bring it down. Thats a space weapon,
>> he cautioned."
http://www.space.com/7644-nasa-darpa-host-space-junk-wake-call.html
>>
>> Darpa is looking into the issue with this solicitation a couple
>> of years ago for possible technologies for a system.
>>
>> DARPA Orbital Debris Removal (ODR)
>> Solicitation Number: DARPA-SN-09-68
>>
>> "Information is sought from all potential sources, domestic
>> and foreign, on innovative technological solutions that will
>> enable the Government to provide orbital debris removal
>> capabilities"
https://www.fbo.gov/index?s=opportunity&mode=form&id=a55fd6e5721284ee...
>>
>> Here's one response...
>>
>> "Responded to DARPA Orbital Debris Removal (ODR) Request
>> for Information (DARPA-SN-09-68). PA&S developed and
>> submitted a concept for a Pneumatic Impingement Stabilization
>> of Unstable space debris for Orbital Debris Removal System
>> (ODRS). The PA&S ODRS is designed to stabilize larger
>> Orbital Debris by apply precisely targeted jets of highly energetic
>> gasses [pneumatic (gas) impingement] from an external source.
http://pouloscorp.com/news/darpa-orbital-debris-removal/
>>
>> Here's a nicely detailed paper on space debris removal, it's a bit
>> dated, but according to this research....
>>
>> "An elegant, cost effective, and feasible approach is to use laser
>> technology to solve this problem. It is estimated that a single.
>> Ground- based laser facility that costs about $100 million and
>> that operated near the equator could remove all orbital debris
>> up to an altitude of 800 km in two years Since satellites typically
>> cost several hundred million and given the half billion price tags
>> on shuttle and Titan launchers, this investment is relatively small
>> given the potential losses of rockets "
http://www.au.af.mil/au/awc/awcgate/cst/csat20.pdf
>>
>> And here's the brand new ground based laser facility....
>>
>> Starfire Optical Rangehttp://
en.wikipedia.org/wiki/Starfire_Optical_Range
>>
>> Here's the space based sensor for space debris
>>
>> "The Space Development and Test Wing from Kirtland AFB, NM
>> successfully launched the second-ever mission of the Minotaur IV
>> launch vehicle."
>>
>> "The payload for the launch was the Space Based Space Surveillance
>> (SBSS) spacecraft, a revolutionary technology which will usher in
>> a new era in space situational awareness. The SBSS space vehicle,
>> developed by Boeing and Ball Aerospace, uses an 11.8-inch telescope
>> mounted on a highly agile, two-axis gimbal to provide data needed
>> to keep better tabs on space debris and guard against accidental
>> collisions."
http://www.kirtland.af.mil/news/story.asp?id=123224585
>>
>> s
>
> This does not deal with the smaller debris that is also dangerous.
> Why not launch a sub-orbital rocket that ejects a cloud of Tungsten
> dust so the dust cloud is going the opposite way most debris is
> moving. The dust cloud would reduce the speed of small debris causing
> it to fall into the atmosphere. The dust cloud could be launched so
> it has almost orbital velocity so it travels almost once around the
> earth before it re-enters the atmosphere.
Or we could just sandblast spacecraft before we launch them for much the
same effect.
Sylvia.