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CX2SA > SATDIG 09.07.09 00:57l 878 Lines 28767 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
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Today's Topics:
1. Re: down converter (PE0SAT)
2. Re: AO-7??? (PE0SAT)
3. Re: down converter (Nigel Gunn G8IFF/W8IFF)
4. Host http://www.amsat.org.uk/ (Thomas Frey)
5. Re: Host http://www.amsat.org.uk/ (Nigel Gunn G8IFF/W8IFF)
6. Re: Host http://www.amsat.org.uk/ (Andrew Glasbrenner)
7. Re: Host http://www.amsat.org.uk/ (Thomas Frey)
8. Re: Host http://www.amsat.org.uk/ (Nigel Gunn G8IFF/W8IFF)
9. Re: OT: Universal Text Messaging and Pagers (WAS Re:Re:dream)
(laura halliday)
10. Re: Host http://www.amsat.org.uk/ (Graham Shirville)
11. ANS-189 AMSAT News Service Special Bulletin - SuitSat-2
Transforms Into a Satellite (JoAnne Maenpaa)
12. Re: qsl card (Scott Smith)
13. Re: ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite (Roger Kolakowski)
14. Re: ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite (g0mrf@xxx.xxxx
15. Re: SuitSat-2Transforms Into a Satellite (g0mrf@xxx.xxxx
16. Re: ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite (Ken Ernandes)
----------------------------------------------------------------------
Message: 1
Date: Wed, 8 Jul 2009 10:35:37 +0200
From: "PE0SAT" <pe0sat@xxxxx.xx>
Subject: [amsat-bb] Re: down converter
To: "Jerry" <W0SAT@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<394efd4d9d48c825a0a2dcb2ba9f0f77.squirrel@xxxxxxx.xxxxx.xx>
Content-Type: text/plain;charset=iso-8859-1
On Wed, July 8, 2009 06:06, Jerry wrote:
> Hi,
> would anyone be interested in buying my non modified AIDC
> 3731 down converter ???
Maybe, if you give some extra information about this down converter?
> Jerry w0sat
Jan - PE0SAT
--
With regards PE0SAT
Internet web-page http://www.ham.vgnet.nl/
------------------------------
Message: 2
Date: Wed, 8 Jul 2009 10:40:34 +0200
From: "PE0SAT" <pe0sat@xxxxx.xx>
Subject: [amsat-bb] Re: AO-7???
To: "Auke de Jong" <sparkycivic@xxxx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<881c5da0fe66cd9b012dd7fc334c4037.squirrel@xxxxxxx.xxxxx.xx>
Content-Type: text/plain;charset=iso-8859-1
On Wed, July 8, 2009 06:35, Auke de Jong wrote:
Hi Auke,
> Could the solar panels on one particular side be failing? Are there any
> regular patterns to the performance?
>
> ... and so continues the next chapter of most interesting satellite we
> have!
The experience I have the last couple of weeks, is that when AO-7 is
comming towards me everything works great but when it is going away from
me, it is very difficult to use the bird.
No idea what the reason could be?
PE0SAT - Jan
------------------------------
Message: 3
Date: Wed, 08 Jul 2009 12:45:49 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: down converter
To: PE0SAT <pe0sat@xxxxx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4A5494FD.9040907@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Maybe if you looked on Google you'd find it yourself.
PE0SAT wrote:
>
> Maybe, if you give some extra information about this down converter?
------------------------------
Message: 4
Date: Wed, 08 Jul 2009 15:19:47 +0200
From: Thomas Frey <th.frey@xxxxxxx.xx>
Subject: [amsat-bb] Host http://www.amsat.org.uk/
To: amsat-bb@xxxxx.xxx
Message-ID: <4A549CF3.7010404@xxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello and Thanks for the bandwith
If I click on http://www.amsat.org.uk/iaru/ I get the message
"Bad Request (Invalid Hostname)". I think the host is misconfigured.
If you are the webmaster, please correct it, Thank you.
Best Regards, 73
Thomas Frey, HB9SKA
______________________________________________________________________
Thomas Frey, Holzgasse 2, CH-5242 Birr, Tel. + Fax: 056 444 93 41
http://home.datacomm.ch/th.frey/
------------------------------
Message: 5
Date: Wed, 08 Jul 2009 13:26:38 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
To: Thomas Frey <th.frey@xxxxxxx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4A549E8E.6090202@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Amsat UK is at http://www.uk.amsat.org/
Thomas Frey wrote:
> Hello and Thanks for the bandwith
>
> If I click on http://www.amsat.org.uk/iaru/ I get the message
> "Bad Request (Invalid Hostname)". I think the host is misconfigured.
>
> If you are the webmaster, please correct it, Thank you.
------------------------------
Message: 6
Date: Wed, 8 Jul 2009 09:42:48 -0400
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
To: "Nigel Gunn G8IFF/W8IFF" <nigel@xxxxx.xxx>, "Thomas Frey"
<th.frey@xxxxxxx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <C2B827E11A574ABEA97BE13883BB16B0@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Yes it is, but the page Thomas is referring to is the IARU coordination page
that -UK hosts. It is -not- there, and has been down for several days.
73, Drew KO4MA
----- Original Message -----
From: "Nigel Gunn G8IFF/W8IFF" <nigel@xxxxx.xxx>
To: "Thomas Frey" <th.frey@xxxxxxx.xx>
Cc: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, July 08, 2009 9:26 AM
Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
> Amsat UK is at http://www.uk.amsat.org/
>
> Thomas Frey wrote:
>> Hello and Thanks for the bandwith
>>
>> If I click on http://www.amsat.org.uk/iaru/ I get the message
>> "Bad Request (Invalid Hostname)". I think the host is misconfigured.
>>
>> If you are the webmaster, please correct it, Thank you.
> _______________________________________________
> 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: 7
Date: Wed, 08 Jul 2009 17:31:50 +0200
From: Thomas Frey <th.frey@xxxxxxx.xx>
Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4A54BBE6.1080209@xxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Yes, Thank you. I would like to reach the IARU coordination page and
hope to reach the webmaster of http://www.amsat.org.uk/ on AMSAT-BB.
Sorry the off topic content. If you know the webmaster please forward
this mail to him, Thanks a lot.
Andrew Glasbrenner schrieb:
> Yes it is, but the page Thomas is referring to is the IARU
> coordination page that -UK hosts. It is -not- there, and has been down
> for several days.
>
> 73, Drew KO4MA
>
> ----- Original Message ----- From: "Nigel Gunn G8IFF/W8IFF"
> <nigel@xxxxx.xxx>
> To: "Thomas Frey" <th.frey@xxxxxxx.xx>
> Cc: <amsat-bb@xxxxx.xxx>
> Sent: Wednesday, July 08, 2009 9:26 AM
> Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
>
>
>> Amsat UK is at http://www.uk.amsat.org/
>>
>> Thomas Frey wrote:
>>> Hello and Thanks for the bandwith
>>>
>>> If I click on http://www.amsat.org.uk/iaru/ I get the message
>>> "Bad Request (Invalid Hostname)". I think the host is misconfigured.
>>>
>>> If you are the webmaster, please correct it, Thank you.
>> _______________________________________________
>> 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
>
>
--
Mit freundlichen Gr?ssen, Regards, 73
Thomas Frey, HB9SKA
______________________________________________________________________
Thomas Frey, Holzgasse 2, CH-5242 Birr, Tel. + Fax: 056 444 93 41
http://home.datacomm.ch/th.frey/
------------------------------
Message: 8
Date: Wed, 08 Jul 2009 15:52:02 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
To: Thomas Frey <th.frey@xxxxxxx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4A54C0A2.2040501@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Webmasters are
John Heaton, G1YYH, G1YYH@xxxxx.xxx
Jim Heck, G3WGM, G3WGM@xxxxx.xxx
Addresses are on www.qrz.com
Thomas Frey wrote:
> Yes, Thank you. I would like to reach the IARU coordination page and
> hope to reach the webmaster of http://www.amsat.org.uk/ on AMSAT-BB.
> Sorry the off topic content. If you know the webmaster please forward
> this mail to him, Thanks a lot.
>
------------------------------
Message: 9
Date: Wed, 8 Jul 2009 09:05:58 -0700
From: laura halliday <marsgal42@xxxxxxx.xxx>
Subject: [amsat-bb] Re: OT: Universal Text Messaging and Pagers (WAS
Re:Re:dream)
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BAY119-W23A32A8F79057F19671AFDAE290@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
A number of groups have played with mixing POCSAG and ham radio, but I've
never heard of any actually making it work. Rather than worrying too much
about whether it was legal or not, they assumed that since it was amateurs
doing amateur things with it, i.e. playing with and learning about radio, it
was OK. Industry Canada generally trust us to behave ourselves. Can't say the
same for other countries.
The 2-way stuff paging I work with (ReFLEX 2.7) is much cooler than POCSAG,
but Motorola could teach Apple a thing or two about closed, proprietary
systems... :-(
Laura Halliday VE7LDH "Que les nuages soient notre
Grid: CN89mg pied a terre..."
ICBM: 49 16.05 N 122 56.92 W - Hospital/Shafte
_________________________________________________________________
Cr?ez un personnage ? votre image pour votre WL Messenger
http://go.microsoft.com/?linkid=9656622
------------------------------
Message: 10
Date: Wed, 8 Jul 2009 17:59:17 +0100
From: "Graham Shirville" <g.shirville@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>, "Nigel Gunn
G8IFF/W8IFF" <nigel@xxxxx.xxx>, "Thomas Frey" <th.frey@xxxxxxx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <30C2E00474F647859F10BF226F55B816@xxxxxxx.xxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi All,
Yes apologies - the server that this website is based has suffered a major
failure...we are trying to rebuild it at this moment but we do not expect it
to be back up for another 7-10 days and then it may need to be updated and
corrected.
If anyone has immediate questions relating to specific mission pls email me
directly off-list
thanks
Graham
g3vzv at amsat.org
----- Original Message -----
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
To: "Nigel Gunn G8IFF/W8IFF" <nigel@xxxxx.xxx>; "Thomas Frey"
<th.frey@xxxxxxx.xx>
Cc: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, July 08, 2009 2:42 PM
Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
> Yes it is, but the page Thomas is referring to is the IARU coordination
> page
> that -UK hosts. It is -not- there, and has been down for several days.
>
> 73, Drew KO4MA
>
> ----- Original Message -----
> From: "Nigel Gunn G8IFF/W8IFF" <nigel@xxxxx.xxx>
> To: "Thomas Frey" <th.frey@xxxxxxx.xx>
> Cc: <amsat-bb@xxxxx.xxx>
> Sent: Wednesday, July 08, 2009 9:26 AM
> Subject: [amsat-bb] Re: Host http://www.amsat.org.uk/
>
>
>> Amsat UK is at http://www.uk.amsat.org/
>>
>> Thomas Frey wrote:
>>> Hello and Thanks for the bandwith
>>>
>>> If I click on http://www.amsat.org.uk/iaru/ I get the message
>>> "Bad Request (Invalid Hostname)". I think the host is misconfigured.
>>>
>>> If you are the webmaster, please correct it, Thank you.
>> _______________________________________________
>> 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: 11
Date: Wed, 8 Jul 2009 12:08:01 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2 Transforms Into a Satellite
To: <amsat-bb@xxxxx.xxx>
Message-ID: <002b01c9ffee$a714b020$f53e1060$@xxx>
Content-Type: text/plain; charset="us-ascii"
SB SAT @ AMSAT $ANS-189.01
SuitSat-2 Transforms Into a Satellite
AMSAT News Service Bulletin 189.01
>From AMSAT HQ SILVER SPRING, MD.
July 8, 2009
To All RADIO AMATEURS
BID: $ANS-189.01
Due to storage considerations on the International Space Station,
the two surplus Orlan space suits in storage on the International
Space Station were discarded via the Progress Cargo Vessel. One of
these suits was to be used to house the electronics for the upcoming
SuitSat-2 mission where the batteries were to be mounted inside the
suit, solar panels attached to the extremities with the electronics,
video cameras and antenna mounted on the helmet by the ISS crew prior
to deployment during an EVA.
The Progress, with the suits included, was undocked from ISS this
past week.
The ARISS International Team has been informed that there is still
space available for shipment of the SuitSat-2 electronics on the
projected cargo flight to the Space Station in January 2010 and the
EVA scheduled for April 2010 still has a 'SuitSat-2' deployment
scheduled.
Consequently, the AMSAT team developing SuitSat-2 electronics on
behalf of ARISS International is focusing on completing development
in anticipation that deployment will still take place in Spring 2010
using a new structure to house it. In addition, the experiment being
developed by Russia's Kursk State University is still expected to
be integrated into the electronics once the US produced equipment
is delivered to Russia this fall. Discussions are currently taking
place between Russian ARISS members and the AMSAT project managers
concerning the design of the new structure and where it will be
constructed with these decisions to be made in the next few weeks.
The AMSAT team building the electronics is meeting July 10-12 in
Phoenix to initiate integration testing of all of the components
built in the US with subsequent testing to continue through the
remainder of the summer in anticipation of shipping equipment to
Russia in the fall.
The removal of the Orlan space suits from ISS removes the 'Suit'
component of this deployment and at some point a new project name
will be used to reflect the change in configuration. However, the
significant importance of this project to both ARISS and AMSAT is
not diminished.
ARISS sees this mission as an important component of education out-
reach as it will provide an opportunity for students around the world
to listen for recorded greetings from space as well as learn about
tracking spacecraft in orbit.
Meanwhile, the deployment of SDX (Software Defined Transponder), the
associated receiver and transmitter modules, and control electronics
is a critical milestone for AMSAT as this upcoming flight provides an
opportunity to flight test the next generation of spacecraft hardware.
Lessons learned from this deployment will be applied to future flight
opportunities as AMSAT moves towards a 'modularization approach' to
spacecraft development with the expectation the future spacecraft
missions will utilize a derivative of SDX and the associated hardware.
[ANS thanks AMSAT VP-Manned Spaceflight Will Marchant, KC6ROL for
the above information]
/EX
------------------------------
Message: 12
Date: Wed, 8 Jul 2009 11:23:32 -0700
From: "Scott Smith" <ve6itv@xxxx.xx>
Subject: [amsat-bb] Re: qsl card
To: <amsat-bb@xxxxx.xxx>
Message-ID: <802367127C60413A838E4D3762358502@xxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi folks, i received my qsl card from Richard Garriott in the mail today.
Thanks to all who were involved in getting those cards in the mail. It sure
looks nice. 73 de VE6ITV Scott
------------------------------
Message: 13
Date: Wed, 8 Jul 2009 14:50:14 -0400
From: "Roger Kolakowski" <rogerkola@xxx.xxx>
Subject: [amsat-bb] Re: ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite
To: <amsat-bb@xxxxx.xxx>
Message-ID: <006a01c9fffc$ee310040$0300a8c0@xxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Just for grins...with the reduced gravity at 200 miles up..how much force
would need to be applied "vertically" (in reality 'away from the earth") for
a cubesat to arrive in an orbit which would last significantly longer
without additional propulsion?
Background...I was a business major so such calculations ARE rocket science
to me...
Roger
WA1KAT
----- Original Message -----
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, July 08, 2009 1:08 PM
Subject: [amsat-bb] ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite
> SB SAT @ AMSAT $ANS-189.01
> SuitSat-2 Transforms Into a Satellite
>
> AMSAT News Service Bulletin 189.01
> >From AMSAT HQ SILVER SPRING, MD.
> July 8, 2009
> To All RADIO AMATEURS
> BID: $ANS-189.01
>
> Due to storage considerations on the International Space Station,
> the two surplus Orlan space suits in storage on the International
> Space Station were discarded via the Progress Cargo Vessel. One of
> these suits was to be used to house the electronics for the upcoming
> SuitSat-2 mission ... ;-(
------------------------------
Message: 14
Date: Wed, 08 Jul 2009 14:20:21 -0400
From: g0mrf@xxx.xxx
Subject: [amsat-bb] Re: ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite
To: rogerkola@xxx.xxxx amsat-bb@xxxxx.xxx
Message-ID: <8CBCE0FE34AC5D6-3EC-E5A@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Now, that is an intriguing thought Roger !
I think to get maximum altitude you would need to 'throw' the satellite
forward. i.e. in the direction of movement of the ISS.
This would give you an elliptical orbit with the lowest point at the starting
altitude and the apogee or highest point determined by the amount of delta V
applied when the satellite was thrown.
So.....1) What orbit do you get if the original direction of travel is
"vertical" or 90 degrees to the direction of travel?
???????? 2) How to convert the ability to throw a 1kg brick 25 feet into the
air on earth, into a figure of Newton seconds to calculate thrust and delta V
for orbital change.
Thanks
David
Just for grins...with the reduced gravity at 200 miles up..how much force
would need to be applied "vertically" (in reality 'away from the earth") for
a cubesat to arrive in an orbit which would last significantly longer
without additional propulsion?
Background...I was a business major so such calculations ARE rocket science
to me...
Roger
WA1KAT
-----Original Message-----
From: Roger Kolakowski <rogerkola@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Wed, 8 Jul 2009 18:50
Subject: [amsat-bb] Re: ANS-189 AMSAT News Service Special Bulletin - SuitSat-
2Transforms Into a Satellite
Just for grins...with the reduced gravity at 200 miles up..how much force
would need to be applied "vertically" (in reality 'away from the earth") for
a cubesat to arrive in an orbit which would last significantly longer
without additional propulsion?
Background...I was a business major so such calculations ARE rocket science
to me...
Roger
WA1KAT
----- Original Message -----
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, July 08, 2009 1:08 PM
Subject: [amsat-bb] ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite
> SB SAT @ AMSAT $ANS-189.01
> SuitSat-2 Transforms Into a Satellite
>
> AMSAT News Service Bulletin 189.01
> >From AMSAT HQ SILVER SPRING, MD.
> July 8, 2009
> To All RADIO AMATEURS
> BID: $ANS-189.01
>
> Due to storage considerations on the International Space Station,
> the two surplus Orlan space suits in storage on the International
> Space Station were discarded via the Progress Cargo Vessel. One of
> these suits was to be used to house the electronics for the upcoming
> SuitSat-2 mission ... ;-(
_______________________________________________
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
________________________________________________________________________
AOL Email goes Mobile! You can now read your AOL Emails whilst on the move.
Sign up for a free AOL Email account with unlimited storage today.
------------------------------
Message: 15
Date: Wed, 08 Jul 2009 14:37:50 -0400
From: g0mrf@xxx.xxx
Subject: [amsat-bb] Re: SuitSat-2Transforms Into a Satellite
To: rogerkola@xxx.xxxx amsat-bb@xxxxx.xxx
Message-ID: <8CBCE1255177844-3EC-FA4@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Actually, on a serious note.
Although this announcement generates a huge amount of work for those involved
in xxxxSat2, it will result in a package with higher density which will last
longer before reaching the atmosphere.
Looks like the late nights at Pheonix.
David? G0MRF
-----Original Message-----
From: Roger Kolakowski <rogerkola@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Wed, 8 Jul 2009 18:50
Subject: [amsat-bb] Re: ANS-189 AMSAT News Service Special Bulletin - SuitSat-
2Transforms Into a Satellite
Just for grins...with the reduced gravity at 200 miles up..how much force
would need to be applied "vertically" (in reality 'away from the earth") for
a cubesat to arrive in an orbit which would last significantly longer
without additional propulsion?
Background...I was a business major so such calculations ARE rocket science
to me...
Roger
WA1KAT
----- Original Message -----
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, July 08, 2009 1:08 PM
Subject: [amsat-bb] ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite
> SB SAT @ AMSAT $ANS-189.01
> SuitSat-2 Transforms Into a Satellite
>
> AMSAT News Service Bulletin 189.01
> >From AMSAT HQ SILVER SPRING, MD.
> July 8, 2009
> To All RADIO AMATEURS
> BID: $ANS-189.01
>
> Due to storage considerations on the International Space Station,
> the two surplus Orlan space suits in storage on the International
> Space Station were discarded via the Progress Cargo Vessel. One of
> these suits was to be used to house the electronics for the upcoming
> SuitSat-2 mission ... ;-(
_______________________________________________
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
________________________________________________________________________
AOL Email goes Mobile! You can now read your AOL Emails whilst on the move.
Sign up for a free AOL Email account with unlimited storage today.
------------------------------
Message: 16
Date: Wed, 8 Jul 2009 14:48:25 -0400 (GMT-04:00)
From: Ken Ernandes <n2wwd@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite
To: g0mrf@xxx.xxxx rogerkola@xxx.xxxx amsat-bb@xxxxx.xxx
Message-ID:
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The forward direction is correct if one wishes to maximize semi-major axis
(and likewise, altitude).
Throwing the suit vertically will just create higher eccentricity without any
additional semi-major axis -- i.e., perigee will be lower than the ISS and
apogee would be higher.
They deliberately throw the suits in the rearward direction so they will have
a slightly lower altitiude to reduce the collision hazard and have it burn in
more quickly. If you throw the suit forward, it will have a higher semi-major
axis with perigee altitude at the release point. (Assuming the ISS's orbit
were perfectly circular, which it naturally is not.)
The increased collision hazard is because the suit would be crossing the ISS's
orbital path occasionally for a variety of reasons. The orbital crossings are
reduced, if not eliminated, by throwing the suit rearward.
I hope this helps.
73, Ken N2WWD
-----Original Message-----
>From: g0mrf@xxx.xxx
>Sent: Jul 8, 2009 2:20 PM
>To: rogerkola@xxx.xxxx amsat-bb@xxxxx.xxx
>Subject: [amsat-bb] Re: ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite
>
>Now, that is an intriguing thought Roger !
>
>I think to get maximum altitude you would need to 'throw' the satellite
forward. i.e. in the direction of movement of the ISS.
>This would give you an elliptical orbit with the lowest point at the starting
altitude and the apogee or highest point determined by the amount of delta V
applied when the satellite was thrown.
>
>So.....1) What orbit do you get if the original direction of travel is
"vertical" or 90 degrees to the direction of travel?
>???????? 2) How to convert the ability to throw a 1kg brick 25 feet into the
air on earth, into a figure of Newton seconds to calculate thrust and delta V
for orbital change.
>
>Thanks
>
>David
>
>
>
>Just for grins...with the reduced gravity at 200 miles up..how much force
>would need to be applied "vertically" (in reality 'away from the earth") for
>a cubesat to arrive in an orbit which would last significantly longer
>without additional propulsion?
>
>Background...I was a business major so such calculations ARE rocket science
>to me...
>
>Roger
>WA1KAT
>
>
>
>
>-----Original Message-----
>From: Roger Kolakowski <rogerkola@xxx.xxx>
>To: amsat-bb@xxxxx.xxx
>Sent: Wed, 8 Jul 2009 18:50
>Subject: [amsat-bb] Re: ANS-189 AMSAT News Service Special Bulletin -
SuitSat-2Transforms Into a Satellite
>
>
>
>Just for grins...with the reduced gravity at 200 miles up..how much force
>would need to be applied "vertically" (in reality 'away from the earth") for
>a cubesat to arrive in an orbit which would last significantly longer
>without additional propulsion?
>
>Background...I was a business major so such calculations ARE rocket science
>to me...
>
>Roger
>WA1KAT
>----- Original Message -----
>From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
>To: <amsat-bb@xxxxx.xxx>
>Sent: Wednesday, July 08, 2009 1:08 PM
>Subject: [amsat-bb] ANS-189 AMSAT News Service Special Bulletin -
>SuitSat-2Transforms Into a Satellite
>
>
>> SB SAT @ AMSAT $ANS-189.01
>> SuitSat-2 Transforms Into a Satellite
>>
>> AMSAT News Service Bulletin 189.01
>> >From AMSAT HQ SILVER SPRING, MD.
>> July 8, 2009
>> To All RADIO AMATEURS
>> BID: $ANS-189.01
>>
>> Due to storage considerations on the International Space Station,
>> the two surplus Orlan space suits in storage on the International
>> Space Station were discarded via the Progress Cargo Vessel. One of
>> these suits was to be used to house the electronics for the upcoming
>> SuitSat-2 mission ... ;-(
>
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>
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------------------------------
_______________________________________________
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!
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End of AMSAT-BB Digest, Vol 4, Issue 327
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