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CX2SA > SATDIG 05.09.12 20:03l 352 Lines 14070 Bytes #999 (0) @ WW
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Subj: AMSAT-BB-digest V7 286
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From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: AO40 replacement !!! (John Spasojevich)
2. Re: AO40 replacement !!! (Bob- W7LRD)
3. Re: AO40 replacement !!! (Kevin Muenzler)
4. Re: AO40 replacement !!! (Gordon JC Pearce)
5. Re: AO40 replacement !!! (John Becker)
6. Re: AO40 replacement !!! (Gordon JC Pearce)
----------------------------------------------------------------------
Message: 1
Date: Wed, 5 Sep 2012 11:40:09 -0500
From: John Spasojevich <johnag9d@xxxxx.xxx>
To: "Trevor ." <m5aka@xxxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AO40 replacement !!!
Message-ID:
<CA+qbou50R1vSU6S8T08DNhQgqQB_V9wxo+reg-nC0_x0x-kCmw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
How would it be assembled on ISS? You would have to build it on the
ground, document every step, take it apart and rebuild it to be sure the
assembly documentation is correct and then ship it up bit by bit. Meanwhile
each crew trains quite awhile on their respective increments aboard before
they launch. So, you would have to hope you train the right crew to
assemble it which means your upmass bits and pieces would have to make
every launch they are scheduled for. Being a ham radio satellite what do
you think the priority is should something more pressing come along? There
goes your trained crew, remember the broken antenna on ARISSat-1? The crew
that deployed it was not the crew that had been trained on the ground for
that deployment. Assembly of anything even remotely close to AO-40 aboard
ISS is unrealistic. The best chance of getting a so called replacement for
AO40 is to find a way to complete and launch P3D which is sitting on the
ground in Germany. Maybe they'd like to disassemble it, document it and
work shipping it to ISS via ESA?
John - AG9D
On Wed, Sep 5, 2012 at 10:48 AM, Trevor . <m5aka@xxxxx.xx.xx> wrote:
> --- On Wed, 5/9/12, Kevin Muenzler <kevin@xxxxxxxxxxxxxxxxxxxxx.xxx>
> wrote:
> > It would be difficult to get some sort of rocket aboard the ISS now
> > that the space shuttle missions are finished
>
> I doubt it was ever feasible, if I understand it correctly there are even
> issues with shipping rechargable batteries up there let alone a rocket.
>
> Also with regards to ISS bear in mind buying astronauts time to do
> anything would cost a fortune. They are employed by their respective
> organizations to work up there.
>
> Getting CubeSat's to MEO or HEO will depend on developing propulsion,
> fold-out solar panels, and even CubeSat directional antennas - I wonder
> could a 2m 2 ele Yagi be incorporated into a 3U CubeSat ?
>
> 73 Trevor M5AKA
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 2
Date: Wed, 5 Sep 2012 17:37:06 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
To: John Spasojevich <johnag9d@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AO40 replacement !!!
Message-ID:
<1567405725.277022.1346866626111.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
I am resigned to the fact we will in all probability never see another AO-40
(sobsob) unless one of us wins the lottery. We would call it the LRD bird
(if I won). As far as putting one together on the ISS, we would have to send
a "real" ham to the ISS., to put it together. Remember they busted a antenna
on the last one. The best chance is from our DL friends with the AO-10/13
type frame. Untill then we will have to be content with what we have and
when we have it. We can play around with interesting propulsion systems etc.
I realize we have smart people in high places within various organizations,
and trusting them is necessary. Finally if a HEO is ever on the horizon (pun
intended), they will come in droves.
73 Bob W7LRD
----- Original Message -----
From: "John Spasojevich" <johnag9d@xxxxx.xxx>
To: "Trevor ." <m5aka@xxxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Sent: Wednesday, September 5, 2012 9:40:09 AM
Subject: [amsat-bb] Re: AO40 replacement !!!
How would it be assembled on ISS? You would have to build it on the
ground, document every step, take it apart and rebuild it to be sure the
assembly documentation is correct and then ship it up bit by bit. Meanwhile
each crew trains quite awhile on their respective increments aboard before
they launch. So, you would have to hope you train the right crew to
assemble it which means your upmass bits and pieces would have to make
every launch they are scheduled for. Being a ham radio satellite what do
you think the priority is should something more pressing come along? There
goes your trained crew, remember the broken antenna on ARISSat-1? The crew
that deployed it was not the crew that had been trained on the ground for
that deployment. Assembly of anything even remotely close to AO-40 aboard
ISS is unrealistic. The best chance of getting a so called replacement for
AO40 is to find a way to complete and launch P3D which is sitting on the
ground in Germany. Maybe they'd like to disassemble it, document it and
work shipping it to ISS via ESA?
John - AG9D
On Wed, Sep 5, 2012 at 10:48 AM, Trevor . <m5aka@xxxxx.xx.xx> wrote:
> --- On Wed, 5/9/12, Kevin Muenzler <kevin@xxxxxxxxxxxxxxxxxxxxx.xxx>
> wrote:
> > It would be difficult to get some sort of rocket aboard the ISS now
> > that the space shuttle missions are finished
>
> I doubt it was ever feasible, if I understand it correctly there are even
> issues with shipping rechargable batteries up there let alone a rocket.
>
> Also with regards to ISS bear in mind buying astronauts time to do
> anything would cost a fortune. They are employed by their respective
> organizations to work up there.
>
> Getting CubeSat's to MEO or HEO will depend on developing propulsion,
> fold-out solar panels, and even CubeSat directional antennas - I wonder
> could a 2m 2 ele Yagi be incorporated into a 3U CubeSat ?
>
> 73 Trevor M5AKA
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 3
Date: Wed, 5 Sep 2012 13:11:50 -0500
From: "Kevin Muenzler" <kevin@xxxxxxxxxxxxxxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AO40 replacement !!!
Message-ID: <004501cd8b91$ebd70af0$c38520d0$@xxx>
Content-Type: text/plain; charset="us-ascii"
I was watching a video a few weeks ago (YouTube I think) about putting
cube-sats ("triple-cube") in geosynchronous orbit using ion power. They
would be launched to the ISS, unpacked and released during an EVA. They
would slowly spiral out over several months to a permanent orbit. I'll see
if I can find it again and post it here.
Kevin Muenzler, WB5RUE
Grid-EL09uf
Eagle Creek Observatory
http://www.eaglecreekobservatory.org
I'd be unstoppable if it weren't for law enforcement and physics
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Bob- W7LRD
Sent: Wednesday, September 05, 2012 12:37 PM
To: John Spasojevich
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AO40 replacement !!!
I am resigned to the fact we will in all probability never see another AO-40
(sobsob) unless one of us wins the lottery. We would call it the LRD bird
(if I won). As far as putting one together on the ISS, we would have to send
a "real" ham to the ISS., to put it together. Remember they busted a antenna
on the last one. The best chance is from our DL friends with the AO-10/13
type frame. Untill then we will have to be content with what we have and
when we have it. We can play around with interesting propulsion systems etc.
I realize we have smart people in high places within various organizations,
and trusting them is necessary. Finally if a HEO is ever on the horizon (pun
intended), they will come in droves.
73 Bob W7LRD
----- Original Message -----
From: "John Spasojevich" <johnag9d@xxxxx.xxx>
To: "Trevor ." <m5aka@xxxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Sent: Wednesday, September 5, 2012 9:40:09 AM
Subject: [amsat-bb] Re: AO40 replacement !!!
How would it be assembled on ISS? You would have to build it on the ground,
document every step, take it apart and rebuild it to be sure the assembly
documentation is correct and then ship it up bit by bit. Meanwhile each crew
trains quite awhile on their respective increments aboard before they
launch. So, you would have to hope you train the right crew to assemble it
which means your upmass bits and pieces would have to make every launch they
are scheduled for. Being a ham radio satellite what do you think the
priority is should something more pressing come along? There goes your
trained crew, remember the broken antenna on ARISSat-1? The crew that
deployed it was not the crew that had been trained on the ground for that
deployment. Assembly of anything even remotely close to AO-40 aboard ISS is
unrealistic. The best chance of getting a so called replacement for
AO40 is to find a way to complete and launch P3D which is sitting on the
ground in Germany. Maybe they'd like to disassemble it, document it and work
shipping it to ISS via ESA?
John - AG9D
On Wed, Sep 5, 2012 at 10:48 AM, Trevor . <m5aka@xxxxx.xx.xx> wrote:
> --- On Wed, 5/9/12, Kevin Muenzler <kevin@xxxxxxxxxxxxxxxxxxxxx.xxx>
> wrote:
> > It would be difficult to get some sort of rocket aboard the ISS now
> > that the space shuttle missions are finished
>
> I doubt it was ever feasible, if I understand it correctly there are
> even issues with shipping rechargable batteries up there let alone a
rocket.
>
> Also with regards to ISS bear in mind buying astronauts time to do
> anything would cost a fortune. They are employed by their respective
> organizations to work up there.
>
> Getting CubeSat's to MEO or HEO will depend on developing propulsion,
> fold-out solar panels, and even CubeSat directional antennas - I
> wonder could a 2m 2 ele Yagi be incorporated into a 3U CubeSat ?
>
> 73 Trevor M5AKA
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 4
Date: Wed, 05 Sep 2012 19:35:22 +0100
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AO40 replacement !!!
Message-ID: <50479B6A.3050702@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 05/09/12 16:48, Trevor . wrote:
> Getting CubeSat's to MEO or HEO will depend on developing propulsion,
> fold-out solar panels, and even CubeSat directional antennas - I
> wonder could a 2m 2 ele Yagi be incorporated into a 3U CubeSat ?
As a first-order approximation, my HB9CV is just about 260mm between
elements, or a little shorter than a 3U cubesat. So it seems to me that
you could make a two-element "tape measure" beam with the elements
wrapped around the can at opposite ends and ensure it always points
driven end downwards. The rest is just standard pyro to unwrap the
aerial elements.
--
Gordon JC Pearce MM0YEQ
------------------------------
Message: 5
Date: Wed, 05 Sep 2012 13:38:47 -0500
From: John Becker <w0jab@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AO40 replacement !!!
Message-ID: <5.2.0.9.2.20120905133538.01b7db50@xxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
At 12:37 PM 9/5/2012, you wrote:
>I am resigned to the fact we will in all probability never see another
AO-40 (sobsob)
And the reason your thinking that is?
------------------------------
Message: 6
Date: Wed, 05 Sep 2012 19:55:27 +0100
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AO40 replacement !!!
Message-ID: <5047A01F.3000304@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 05/09/12 19:38, John Becker wrote:
> At 12:37 PM 9/5/2012, you wrote:
>> I am resigned to the fact we will in all probability never see another
AO-40 (sobsob)
>
> And the reason your thinking that is?
Cost, most likely. None of the "developed" nations have an experimental
space programme where we can squeeze a big heavy satellite into a
vehicle and hitch-hike to high-Earth orbit any more.
If you want to have so much as a *chance* of getting stuff to HEO, get
onto some of the developing countries and see what you can do for their
space programme. Iran is probably a good bet.
--
Gordon JC Pearce MM0YEQ
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 7, Issue 286
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