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CX2SA > SATDIG 30.11.11 00:42l 866 Lines 29446 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: AO-51 end of mission (wa4hfn@xxxxxxx.xxxx
2. Re: AO-51 end of mission (Peter Portanova)
3. RIP AO-51 (Reid Crowe)
4. Re: AO-51 end of mission (John Geiger)
5. Re: AO-51 end of mission (David H. Jordan)
6. Re: AO-51 end of mission (wa4hfn@xxxxxxx.xxxx
7. AO-51, is there an expected state when the voltage is high
enough (PE0SAT)
8. Re: AO-51 end of mission (Andrew Glasbrenner)
9. Re: AO-51, is there an expected state when the voltage is
high enough (Andrew Glasbrenner)
10. Re: satellite durability fm vs. linears (i8cvs)
11. Re: AO-51 end of mission (Miguel Barreiro)
12. Re: AO-51 end of mission (Ng, Peter)
13. Re: AO-51 end of mission (Andrew Glasbrenner)
14. AO-51 end of mission (Raidel Abreu Espinet)
15. Re: AO-51 end of mission (Andy Kellner)
16. Re: AO-51 end of mission (Mark L. Hammond)
17. Re: Satellite Satire (Bob- W7LRD)
----------------------------------------------------------------------
Message: 1
Date: Tue, 29 Nov 2011 20:17:29 +0000 (UTC)
From: wa4hfn@xxxxxxx.xxx
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID:
<1620602044.403178.1322597849877.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxx
xxxx.xxx>
Content-Type: text/plain; charset=utf-8
Thanks for all you have done and still doing
WA4HFN EM55
----- Original Message -----
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
To: "amsat-bb" <amsat-bb@xxxxx.xxx>, ans-editor@xxxxx.xxxx bod@xxxxx.xxxx
senior-officers@xxxxx.xxxx advisors@xxxxx.xxx
Sent: Tuesday, November 29, 2011 1:56:10 PM
Subject: [amsat-bb] AO-51 end of mission
It is with a heavy heart I report that AO-51 has ceased transmission and is
not responding to commands. The last telemetry data indicated that the third
of six batteries was approaching failure to short, and observations indicate
the voltage from three cells is insufficient to power the UHF transmitters.
The IHU may continue to be operative. Initial tests with the S band
transmitter were also not positive, although more attempts are in order. We
have tried leaving the satellite in an expected state where if voltages
climb high enough, the 435.150 transmitter may possibly be heard.
The command team will regularly attempt communications with the satellite
over the coming months (and years). There is always the possibility that a
cell will open and we could once again talk to our friend while illuminated.
Thanks to all who helped fund, design, build, launch, command, and operate
AO-51. It's 7 year mission has been extraordinary. Please support AMSAT's
Fox-1 project, and other AMSAT projects worldwide with your time and money.
For the AO-51 Command Team,
73, Drew KO4MA
AMSAT-NA VP Operations
_______________________________________________
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: Tue, 29 Nov 2011 15:30:53 -0500
From: "Peter Portanova" <wb2oqq@xxxxxxx.xxx>
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID: <82C5F46B73A24527844E3415E581CFBA@xxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Drew,
I first want to wish you and your growing family the very best for the
Holidays!
AO-51, has been one of my best satellite recruiting tools and I will
certainly miss her, however she gave us many wonderful years of faithful
service, good bye dear friend.
Drew, it is also important to note that you and the control team, managed
AO-51 in a manner that I believe extended her life, thank you.
As you noted we all must continue to support AMSAT's Fox-1 project, and
other AMSAT projects I believe thru Amateur Satellites we have found a
potential path to excite the children today and continue the STEM
initiative.
73's Pete
WB2OQQ
www.massapequanyweather.com
------------------------------
Message: 3
Date: Wed, 30 Nov 2011 09:30:55 +1300
From: Reid Crowe <reid.crowe@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] RIP AO-51
Message-ID:
<CA+PU+9irfBdCT0ppEPXMBF3qRwi4_XtOsh5Bu=nsKfMUDg0SfQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Thank you AO-51 for your service. May your cells one day short so that you
may come back to life. Until then, RIP.
Also, thank you to the AO-51 team for all your extraordinary work from
start to end. AO-51 is the bird that got me into satellites.
-Reid N0RC
------------------------------
Message: 4
Date: Tue, 29 Nov 2011 14:37:40 -0600
From: John Geiger <aa5jg@xxxxxxx.xxx>
To: Peter Portanova <portanova911@xxxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID:
<CAFq43Lbpu2m2Ev6WupQgrZ7628XnLkNFGaD=uZqzL7Q-mMr4Mw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Yes, thanks for all of the great work with AO51. I do have a question,
though. Please don't think that I am being critical of AO51, the design
team, or the command team, because I am not. That have all done a great
job. What I am curious about is this: AO27 has been going for 18 years and
is still doing fine. AO51 made it around 6 years. What is the main
difference between the 2 satellites that might explain the 300% difference
in operational life?
73s John AA5JG
On Tue, Nov 29, 2011 at 2:30 PM, Peter Portanova <wb2oqq@xxxxxxx.xxx> wrote:
> Drew,
>
> I first want to wish you and your growing family the very best for the
> Holidays!
>
> AO-51, has been one of my best satellite recruiting tools and I will
> certainly miss her, however she gave us many wonderful years of faithful
> service, good bye dear friend.
>
> Drew, it is also important to note that you and the control team, managed
> AO-51 in a manner that I believe extended her life, thank you.
>
> As you noted we all must continue to support AMSAT's Fox-1 project, and
> other AMSAT projects I believe thru Amateur Satellites we have found a
> potential path to excite the children today and continue the STEM
> initiative.
>
>
>
> 73's Pete
> WB2OQQ
> www.massapequanyweather.com
> ______________________________**_________________
> 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<http://amsat.org/mailman/listinfo
/amsat-bb>
>
------------------------------
Message: 5
Date: Tue, 29 Nov 2011 20:42:55 +0000
From: "David H. Jordan" <n4csitwo@xxxxxxxxx.xxx>
To: "Drew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>, "AMSAT-BB"
<AMSAT-BB@xxxxx.xxx>, ans-editor@xxxxx.xxxx bod@xxxxx.xxxx
senior-officers@xxxxx.xxxx advisors@xxxxx.xxx
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID:
<46876317-1322599376-cardhu_decombobulator_blackberry.rim.net-899334887-@xxx.x
xx.xxxxx.xxxxxxxxxx>
Content-Type: text/plain
AO-51 is a great craft and so is the team that is continuing to ensure its
operation to the end. You guys are incredible.
Dave, AA4KN
Sent via BlackBerry from T-Mobile
-----Original Message-----
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Sender: amsat-bb-bounces@xxxxx.xxxxxxxx Tue, 29 Nov 2011 14:56:10
To: amsat-bb<amsat-bb@xxxxx.xxx>; <ans-editor@xxxxx.xxx>; <bod@xxxxx.xxx>;
<senior-officers@xxxxx.xxx>; <advisors@xxxxx.xxx>
Reply-To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] AO-51 end of mission
It is with a heavy heart I report that AO-51 has ceased transmission and is
not responding to commands. The last telemetry data indicated that the third
of six batteries was approaching failure to short, and observations indicate
the voltage from three cells is insufficient to power the UHF transmitters.
The IHU may continue to be operative. Initial tests with the S band
transmitter were also not positive, although more attempts are in order. We
have tried leaving the satellite in an expected state where if voltages
climb high enough, the 435.150 transmitter may possibly be heard.
The command team will regularly attempt communications with the satellite
over the coming months (and years). There is always the possibility that a
cell will open and we could once again talk to our friend while illuminated.
Thanks to all who helped fund, design, build, launch, command, and operate
AO-51. It's 7 year mission has been extraordinary. Please support AMSAT's
Fox-1 project, and other AMSAT projects worldwide with your time and money.
For the AO-51 Command Team,
73, Drew KO4MA
AMSAT-NA VP Operations
_______________________________________________
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: 6
Date: Tue, 29 Nov 2011 20:48:34 +0000 (UTC)
From: wa4hfn@xxxxxxx.xxx
To: John Geiger <aa5jg@xxxxxxx.xxx>
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID:
<472421193.404981.1322599714550.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
Chinese made batteries?
----- Original Message -----
From: "John Geiger" <aa5jg@xxxxxxx.xxx>
To: "Peter Portanova" <portanova911@xxxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Sent: Tuesday, November 29, 2011 2:37:40 PM
Subject: [amsat-bb] Re: AO-51 end of mission
Yes, thanks for all of the great work with AO51. I do have a question,
though. Please don't think that I am being critical of AO51, the design
team, or the command team, because I am not. That have all done a great
job. What I am curious about is this: AO27 has been going for 18 years and
is still doing fine. AO51 made it around 6 years. What is the main
difference between the 2 satellites that might explain the 300% difference
in operational life?
73s John AA5JG
On Tue, Nov 29, 2011 at 2:30 PM, Peter Portanova <wb2oqq@xxxxxxx.xxx> wrote:
> Drew,
>
> I first want to wish you and your growing family the very best for the
> Holidays!
>
> AO-51, has been one of my best satellite recruiting tools and I will
> certainly miss her, however she gave us many wonderful years of faithful
> service, good bye dear friend.
>
> Drew, it is also important to note that you and the control team, managed
> AO-51 in a manner that I believe extended her life, thank you.
>
> As you noted we all must continue to support AMSAT's Fox-1 project, and
> other AMSAT projects I believe thru Amateur Satellites we have found a
> potential path to excite the children today and continue the STEM
> initiative.
>
>
>
> 73's Pete
> WB2OQQ
> www.massapequanyweather.com
> ______________________________**_________________
> 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<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: 7
Date: Tue, 29 Nov 2011 21:49:13 +0100
From: "PE0SAT" <pe0sat@xxxxx.xx>
To: "AMSAT" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AO-51, is there an expected state when the voltage
is high enough
Message-ID: <20111129204913.7172E1A376@xx.xxxxx.xx>
Content-Type: text/plain;charset=iso-8859-1
Hi,
Thanks for reading.
Is there an expected state when the voltage is high enough regarding AO-51.
The reason I ask, is to listen and see if there is some life in the
satellite when the voltage becomes high enough when there is full exposure
after the coming eclipse periode.
73 Jan PE0SAT
--
With regards PE0SAT
Internet web-page http://www.pe0sat.vgnet.nl/
------------------------------
Message: 8
Date: Tue, 29 Nov 2011 16:01:43 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: John Geiger <aa5jg@xxxxxxx.xxx>
Cc: Peter Portanova <portanova911@xxxxxxx.xxx>, AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID: <4ED54837.9080603@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 11/29/2011 3:37 PM, John Geiger wrote:
> Yes, thanks for all of the great work with AO51. I do have a
> question, though. Please don't think that I am being critical of
> AO51, the design team, or the command team, because I am not. That
> have all done a great job. What I am curious about is this: AO27 has
> been going for 18 years and is still doing fine. AO51 made it around
> 6 years. What is the main difference between the 2 satellites that
> might explain the 300% difference in operational life?
> 73s John AA5JG
It's a fair question.
AO-27 runs a 500mw transmitter for around 8-9 minutes, while
illuminated, per each 100 minute orbit.
AO-51 for most of it's life, ran -two- transmitters at 300mw to over 1w
each, worldwide, and most of the time through eclipse.
That should make the difference more apparent.
73, Drew KO4MA
------------------------------
Message: 9
Date: Tue, 29 Nov 2011 16:09:23 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: pe0sat@xxxxx.xx
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-51, is there an expected state when the
voltage is high enough
Message-ID: <4ED54A03.6080507@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It's not so much a problem of not enough illumination, but more that we
are running on 3 or 3.5 cells, and we need ~4 to make the transmitters
work. There may be some points during the orbit when the V gets high
enough for the transmitter to come on at low power, but that is
conjecture only. We don't know when or really even if that will happen.
If a cell opens up in the future, the IHU will immediately crash upon
eclipse, and the battery voltage -may- rise to whatever the panels can
provide. If this happens we may be able to restart the IHU and get a
transmitter running, but it will only last until the next eclipse.
73, Drew KO4MA
PS. I note that the UK-DMC1 satellite was retired today after 8 years in
orbit due to battery condition. We are almost as good as the mega-dollar
pros!
http://blog.sstl.co.uk/archives/394-UK-DMC-1-to-take-well-earned-retirement.ht
ml
On 11/29/2011 3:49 PM, PE0SAT wrote:
> Hi,
>
> Thanks for reading.
>
> Is there an expected state when the voltage is high enough regarding AO-51.
>
> The reason I ask, is to listen and see if there is some life in the
> satellite when the voltage becomes high enough when there is full exposure
> after the coming eclipse periode.
>
>
> 73 Jan PE0SAT
>
>
>
------------------------------
Message: 10
Date: Tue, 29 Nov 2011 22:10:27 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "zach hillerson" <qstick333@xxxxx.xxx>, "Amsat - BBs"
<amsat-bb@xxxxx.xxx>
Cc: 'IW6OVD Fernando Di Bartolomeo' <fernandodibartolomeo@xxxxx.xx>
Subject: [amsat-bb] Re: satellite durability fm vs. linears
Message-ID: <002901ccaedb$520a9d80$0401a8c0@xxxxx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "zach hillerson" <qstick333@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Tuesday, November 29, 2011 4:48 PM
Subject: [amsat-bb] satellite durability fm vs. linears
Serious question regarding satellite durability. It seems with HO68, SO67,
and now AO51, the FM satellites are quickly going away. It also seems that
the older linear counterparts such as AO7, VO52 and FO29 all seem to
continue working properly.
Zach
N4ERZ
Hi Zach, N4EZR
You are right,the FM satellites are going away but the older linears
continue to work very well and particularly VO52 but there are no
many users on VO52 at most three or four stations when the bird
is over North of Europe and nobody when the bird is over North
Africa.
Yesterday on the ascending orbit Nr 35527 I was in contact with
IW6OVD chatting in SSB for 12 minutes only with him the full
orbit like on the telephone.
IW6OVD posted a mp3 file of the above QSO at the following
address:
http://hamradio.selfip.com/iw6ovd/VO-52.mp3
If you haven't worked either of these three historic satellites,AO7
VO52 (and FO29 when is active) do it NOW!
73" de
i8CVS Domenico
------------------------------
Message: 11
Date: Tue, 29 Nov 2011 22:30:52 +0100
From: Miguel Barreiro <miguel.barreiro.paz@xxxxx.xxx>
To: AMSAT-BB@xxxxx.xxxx John Geiger <aa5jg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID:
<CAKoSLJ2ox9fC+BuMjg=ae6=ZpXPcvn6kbWQSNwNhOiky5KnsMA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi,
2011/11/29 John Geiger <aa5jg@xxxxxxx.xxx>
(...)
> is still doing fine. AO51 made it around 6 years. What is the main
> difference between the 2 satellites that might explain the 300% difference
> in operational life?
>
>
Even more generally: what are the most frequent death causes for amateur
satellites?
>From reading the history of past Oscars, I get the impression that most sat
losses are due to dead or shorted batteries, plus dead electronics
(supposedly due to radiation) and malfunctioning engines (on satellites
that have them, that is). Is it really the case?
73 de Miguel, EA1ICZ
------------------------------
Message: 12
Date: Tue, 29 Nov 2011 13:35:40 -0800
From: "Ng, Peter" <Peter.Ng@xxxxx.xx>
To: "'Andrew Glasbrenner'" <glasbrenner@xxxxxxxxxx.xxx>, amsat-bb
<amsat-bb@xxxxx.xxx>, "ans-editor@xxxxx.xxxx <ans-editor@xxxxx.xxx>,
"bod@xxxxx.xxxx <bod@xxxxx.xxx>, "senior-officers@xxxxx.xxxx
<senior-officers@xxxxx.xxx>, "advisors@xxxxx.xxxx <advisors@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID:
<44D6D682B38A5D4FAA2DBDE4AFD3B87D8BD1AD7F@xxxxxxxx.xxxxxx.xxxxxx.xx>
Content-Type: text/plain; charset="us-ascii"
yes, heavy heart indeed! thanks to all of you in the command team and AMSAT
for maintaining AO-51 for all these years....thank you for a job well done!
73's Peter VE7NGP
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Andrew Glasbrenner
Sent: Tuesday, November 29, 2011 11:56 AM
To: amsat-bb; ans-editor@xxxxx.xxxx bod@xxxxx.xxxx
senior-officers@xxxxx.xxxx advisors@xxxxx.xxx
Subject: [amsat-bb] AO-51 end of mission
It is with a heavy heart I report that AO-51 has ceased transmission and is
not responding to commands. The last telemetry data indicated that the third
of six batteries was approaching failure to short, and observations indicate
the voltage from three cells is insufficient to power the UHF transmitters.
The IHU may continue to be operative. Initial tests with the S band
transmitter were also not positive, although more attempts are in order. We
have tried leaving the satellite in an expected state where if voltages
climb high enough, the 435.150 transmitter may possibly be heard.
The command team will regularly attempt communications with the satellite
over the coming months (and years). There is always the possibility that a
cell will open and we could once again talk to our friend while illuminated.
Thanks to all who helped fund, design, build, launch, command, and operate
AO-51. It's 7 year mission has been extraordinary. Please support AMSAT's
Fox-1 project, and other AMSAT projects worldwide with your time and money.
For the AO-51 Command Team,
73, Drew KO4MA
AMSAT-NA VP Operations
_______________________________________________
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: 13
Date: Tue, 29 Nov 2011 16:47:45 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: Miguel Barreiro <miguel.barreiro.paz@xxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID: <4ED55301.5020408@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 11/29/2011 4:30 PM, Miguel Barreiro wrote:
> Even more generally: what are the most frequent death causes for amateur
> satellites?
>
Batteries, batteries, batteries, and occasionally a bad component or
piece of space junk.
Would now be a good time to mention that Fox-1 is designed to operate
while illuminated, even after a battery failure?
73, Drew KO4MA
------------------------------
Message: 14
Date: Tue, 29 Nov 2011 16:58:45 -0500
From: "Raidel Abreu Espinet" <cl2esp@xxxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] AO-51 end of mission
Message-ID: <WC20111129215845.82032E@xxxxxx.xx.xx>
Content-Type: text/plain; charset="us-ascii"
Yes, so sad it is gone. I enjoy a lot during the few orbits I was able to
work. Thank you very much to AMSAT and the command team.
Regards,
Raydel, CM2ESP
------------------------------------------------------------------------------
---------------------------------------------------
Este mensaje ha sido enviado mediante el servicio de correo electronico
que ofrece la Federacion de Radioaficionados de Cuba a sus miembros para
respaldar el cumplimiento de los objetivos de la organizacion y su politica
informativa.
La persona que envia este correo asume el compromiso de usar el servicio a
tales fines y
cumplir con las regulaciones establecidas
------------------------------
Message: 15
Date: Tue, 29 Nov 2011 14:02:15 -0800 (PST)
From: Andy Kellner <hawat1@xxxxx.xxx>
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>, amsat-bb
<amsat-bb@xxxxx.xxx>, "ans-editor@xxxxx.xxxx <ans-editor@xxxxx.xxx>,
"bod@xxxxx.xxxx <bod@xxxxx.xxx>, "senior-officers@xxxxx.xxxx
<senior-officers@xxxxx.xxx>, "advisors@xxxxx.xxxx <advisors@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 end of mission
Message-ID:
<1322604135.8780.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Yes, I think thanks are in order for you and the operations team who
provided us with many years of enjoyment on countless AO-51 QSO's. Job well
done from start to finish.
RIP little satellite. May your solar panels always been shone on ;) Look up
and see what your grand-daddy, AO-07, has done and maybe you can draw the
inspiration to come back to life in a decade or so.
?
Andreas, VK4HHH
AMSAT-VK Member
________________________________
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>; ans-editor@xxxxx.xxxx bod@xxxxx.xxxx
senior-officers@xxxxx.xxxx advisors@xxxxx.xxx
Sent: Wednesday, 30 November 2011 5:56 AM
Subject: [amsat-bb] AO-51 end of mission
It is with a heavy heart I report that AO-51 has ceased transmission and is
not responding to commands. The last telemetry data indicated that the third
of six batteries was approaching failure to short, and observations indicate
the voltage from three cells is insufficient to power the UHF transmitters.
The IHU may continue to be operative.? Initial tests with the S band
transmitter were also not positive, although more attempts are in order. We
have tried leaving the satellite in an expected state where if voltages
climb high enough, the 435.150 transmitter may possibly be heard.
The command team will regularly attempt communications with the satellite
over the coming months (and years). There is always the possibility that a
cell will open and we could once again talk to our friend while illuminated.
Thanks to all who helped fund, design, build, launch, command, and operate
AO-51.? It's 7 year mission has been extraordinary. Please support AMSAT's
Fox-1 project, and other AMSAT projects worldwide with your time and money.
For the AO-51 Command Team,
73, Drew KO4MA
AMSAT-NA VP Operations
_______________________________________________
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: 16
Date: Tue, 29 Nov 2011 17:09:24 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
To: John Geiger <aa5jg@xxxxxxx.xxx>, AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: AO-51 end of mission
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Actually, I think AO-51 was launched at the end of June 2004. That
makes it about 7.5 years...but who's counting ;)
We essentially got "a free, bonus overtime" from July 2010 until now.
We thought it was about gone back then...check your logs and see just
how many QSOs you made on AO-51 from the end of July 2010 until the
end of November 2011 (and then check how many overall during the 7.5
year). I suspect the cumulative number of contacts would be
staggering.
My thought is how much data I downloaded from that old bird!
Losing a bird you've had the privilege of commanding is like losing a
best friend...
Looking forward to Fox-1(and siblings...) !!
73,
Mark N8MH
On Tue, Nov 29, 2011 at 3:37 PM, John Geiger <aa5jg@xxxxxxx.xxx> wrote:
> Yes, thanks for all of the great work with AO51. ?I do have a question,
> though. ?Please don't think that I am being critical of AO51, the design
> team, or the command team, because I am not. ?That have all done a great
> job. ?What I am curious about is this: AO27 has been going for 18 years and
> is still doing fine. ?AO51 made it around 6 years. ?What is the main
> difference between the 2 satellites that might explain the 300% difference
> in operational life?
>
> 73s John AA5JG
>
--
Mark L. Hammond [N8MH]
------------------------------
Message: 17
Date: Tue, 29 Nov 2011 22:33:38 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
To: George Henry <ka3hsw@xxx.xxx>
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Satellite Satire
Message-ID:
<1313768295.403399.1322606018829.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
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Cool George! it's not the building and concepts that's difficult.? It's
getting the damn things up there.? We should have a division of AMSAT that
does rockets, and launch our own.? Like my Dad told me, "the difficult we do
immediately, the impossible takes a little longer".
73 Bob W7LRD
----- Original Message -----
From: "George Henry" <ka3hsw@xxx.xxx>
To: "AMSAT" <amsat-bb@xxxxx.xxx>
Sent: Tuesday, November 29, 2011 10:06:39 AM
Subject: [amsat-bb] Re: Satellite Satire
Better yet, take the 10.8 MHz IF output from one of their old Bearcat
scanners,
programmed for a 2-meter uplink, add an appropriate local oscillator and ?high
pass filter, feed the resulting signal to the final stage from one of ?their
old
sideband CB's, and you've got a mode A *LINEAR* ?satellite!!
We could call it OSCAR 10-4!
George, ?KA3HSW
> ----- Original Message ----
> > From: K4FEG <K4FEG@xxxxx.xxx>
> > To: amsat-bb@xxxxx.xxx
> > Sent: Tue, ?November 29, 2011 8:49:31 AM
> > Subject: [amsat-bb] Satellite ?Satire
> >
> > OK I have a suggestion: a new inexpensive satellite, It ?will be
designated: ?
>
> >*ReNe-Sat-3, *that will be an abbreviation ?for: *Red Neck Satellite #3 (
>Dale ?
>
> >Ernharts Sr. NASCAR #).
> >
> > *We will take 2 Woxun HT's, 2 Larsen Mag-mounts, ?2**1/4 wave ?antennas, a
>solar
>
> >panel with charger from Northern Hydraulics and ? last but not least
about 100
>
> >feet of NASCAR 200mph duct tape.
> >
> > We take the ?2 radios set them up for our frequencies, duct tape ?them
>together
>
> >mount the ?antennas on the solar panel hook the solar ?panel up to the HT
> >batteries and last ?but not least we send two of ?the south's finest:
>*Astronaut
>
> >"Bubba & ?Cooter"* up with the ?new bird to deploy it. We will tell Bubba &
> >Cooter that ?they ?can have free passes to all the NASCAR races for 2012
when
> >they get ?this ?satellite working and in orbit.
> >
> > I promise they will ?have that thing ?(or ?should i say "thang") up and
>running
>
> >in ?HEO and be back before the ?first race in February 2012.
> >
> > ?For those that are not sure, YES I AM MAKING ?A JOKE!
> >
> > /*It ?is difficult work to keep these satellites working and the ?control
> >operators deserve a round of applause from us for all that they ?have
?done to
>
> >extend the life of AO51 and all of the other ?birds.
> >
> > THANK YOU ONE ?AND ALL! A JOB WELL ? DONE!
> > */
> > Frank
> > K4FEG
>
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End of AMSAT-BB Digest, Vol 6, Issue 646
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