Hi,
If "we" is the hams arournd the world I think most of us we ready to rock
and roll then some. Im not sure what did or didn't happen. I just hope they
do somthing before July a re run of the test is a thought.
73
kc9pxz
Jimmy
- Original Message -
From:
To:
Sent: Wednesday, April
http://arissat1.org/media/pdf/ARISSat-1%20CDR%20Battery.pdf
very interesting document ... any professional comment?
Matt SQ7DQX
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support th
Well found Matt
Looks like the contents of page 9 highlight some potentially critical
issues.
Time will tell.
David
In a message dated 13/04/2011 20:11:43 GMT Daylight Time,
sq7...@poczta.onet.pl writes:
http://arissat1.org/media/pdf/ARISSat-1%20CDR%20Battery.pdf
very interest
All I have to say here is "Pollyanna is alive and well". The spin machine
goes into action. See below.
Tom Schuessler, N5HYP
__--
Subject: [amsat-bb] ARISSat-1 battery.
From: G0MRF@xxx
Date: Wed, 13 Apr 2011 10:11:21 EDT
-
http://www.federalspace.ru/main.php?id=2&nid=11374&lang=en
From: g0...@aol.com
Sent: Wednesday, April 13, 2011 11:31 PM
To: sq7...@poczta.onet.pl ; amsat-bb@amsat.org
Subject: Re: [amsat-bb] Re: ARISSat-1 battery.
Well found Matt
Looks like the contents of page 9 highli
>
>
> --
>
> Message: 8
> Date: Wed, 13 Apr 2011 22:11:23 -0400
> From: "K3RWN" <rwnewbo...@comcast.net>
> Subject: [amsat-bb] Doppler.SQF?
> To: <AMSAT-BB@amsat.org>
> Message-ID: <4B0F577DE0C94CDABF9C619BEDE4B932@RADI
Hi Clint,
The battery can run ARISSat-1 for about 6 days on
the ISS so it will still be almost fully charged
if they run it for just 1 day.
Once it is deployed, the solar panels will charge
the battery.
73,
Tony AA2TX
---
On 7/25/2011 6:39 PM, Clint Bradford wrote:
> OK - Charging of the ARISS
Kind of a 2011 version of AO-7, but without the stable orbit!
73, Jim KQ6EA
On 08/14/2011 10:18 PM, Anthony Monteiro wrote:
Dear Friends,
This is speculation but it looks to me like we
have had a bit of good luck regarding the battery.
Looking at the battery voltage from deployment on...
Up
Hi all,
what about the following link?
http://www.nrel.gov/features/20100708_battery.html
73s
Fabio
IW8QKU/5
*Subject: [amsat-bb] ARISSat-1 battery
From: g0mrf@xxx
Date: Mon, 29 Aug 2011 08:50:45 -0400 (EDT)
Hi all.
The ARISSat team seem to have reached the conclusion that the Silver Zin
Hi,
here is another interesting link:
http://www.nrel.gov/vehiclesandfuels/energystorage/news/2011/1482.html
could it be an interesting opportunity for "our birds" ?
73s
Fabio
IW8QKU/5
On Mon, Aug 29, 2011 at 3:09 PM, Fabio Azzarello wrote:
> Hi all,
> what about the following link?
>
> htt
can it default to solar cells? aka AO-7
73 Bob W7LRD
- Original Message -
From: "Clint Bradford"
To: "AMSAT BB"
Sent: Thursday, April 14, 2011 8:33:40 AM
Subject: [amsat-bb] ARISSat-1 - Battery Failure
RadioSkaf's Alexander, RA3WOK, just wrote me that they do, indeed, suspect
I think I remember the answer is "yes."
Mark N8MH
On Thu, Apr 14, 2011 at 12:38 PM, Bob- W7LRD wrote:
>
>
> can it default to solar cells? aka AO-7
>
> 73 Bob W7LRD
> - Original Message -
> From: "Clint Bradford"
> To: "AMSAT BB"
> Sent: Thursday, April 14, 2011 8:33:40 AM
> Subject: [
According to Anthony AA2TX's presentation/research ...
-The battery must be initially charged to power up ARISSat-1
-The battery must have a charge for the initial 15 minutes of activation
-ARISSat-1 will power down during eclipse if battery fails
-ARISSat-1 can operate without battery in sunlight
Hi Bob & all..
As far as I can see, the main reason it needs power is to allow the
transmitter to stay in the OFF state during deployment and for 15
minutes after release, once it switches ON the battery can be depleted
without any adverse effects.
This was talked about here on -bb a few weeks ba
Can't we just call AAA for a battery jump he he he
73 de Angelo
- Original Message -
From: "Mark L. Hammond"
To: "Bob- W7LRD"
Cc: "Clint Bradford" ; "AMSAT BB"
Sent: Thursday, April 14, 2011 11:53 AM
Subject: [amsat-bb] Re: ARISSat
Dear Friends,
There has been a great deal of speculation on the amsat-bb about
the Russian battery on ARISSat-1 having failed. Be aware that this
is nothing other than idle speculation. There has been no
information from RSC-Energia to support this.
I believe the mis-information comes from a repo
- Original Message -
From: "Anthony Monteiro"
To: "AMSAT BB"
Sent: Thursday, April 14, 2011 9:42 PM
Subject: [amsat-bb] Re: ARISSat-1 - Battery Failure
> Dear Friends,
>
> There has been a great deal of speculation on the amsat-bb about
> the Russian ba
There are LOTS of reasons that the bird could have failed, in my viewpoint the
BEST one is that the battery has some issues. Operating the vehicle in a
thermal environment that it was not designed for would be a first guess,
followed by some sort of "crib death" issue, and next comes parts con
On Apr 15 2011, R Oler wrote:
>
There are LOTS of reasons that the bird could have failed, in my viewpoint
the BEST one is that the battery has some issues. Operating the vehicle in
a thermal environment that it was not designed for would be a first guess,
followed by some sort of "crib death"
Or we could put Gould on the the next trip to the ISS and fix it! Comon
laugh--it's the weekend.
73 Bob W7LRD
- Original Message -
From: tosca...@umn.edu
To: "R Oler"
Cc: "Amsat BB"
Sent: Saturday, April 16, 2011 8:47:57 AM
Subject: [amsat-bb] Re: AR
On 16 Apr 2011 10:47:57, John P. Toscano, W0JT wrote:
>Subject: [amsat-bb] Re: ARISSat-1 - Battery Failure
>One small consolation is that if the ISS crew can't get it working before
>tossing it into space, it could (possibly) be brought back to Earth on a
>future return tri
e "silent" period on launch Robert WB5MZO
> From: am25...@triton.net
> To: amsat-bb@amsat.org
> Date: Sun, 17 Apr 2011 02:47:09 -0400
> Subject: [amsat-bb] Re: ARISSat-1 - Battery Failure
>
> On 16 Apr 2011 10:47:57, John P. Toscano, W0JT wrote:
>
> >Subject: [
Le 12/08/2011 09:55, giulio.pe...@tim.eu.blackberry.com a écrit :
Hi to everybody, I've a question aboute the ARISSat-1 battery situation : If
the battery goes dead (case 1: open circuit, case 2 :short circuit, case 3
current is absorbed from panels but not hold) which will be behavior of the
Dear Gould / ARISSat-1 team,
Thanks for sharing this !
When the battery would go dead (or has very long charge times),
to what extend would that also impact the low power mode ?
Better phrazed: what are the requirements to go/stay in low power mode ?
Is there a (no power) mode, where there is
On 8/11/11 8:46 PM, Gould Smith wrote:
> Kenneth Ransom, N5VHO has plotted the battery min/max for the last 8 days. We
> see that the battery voltage is decreasing at a faster rate than expected.
> Kenneth's graph can be found on the arissat1.org site under FAQ
> http://www.arissat1.org/v3/in
Disclaimer: what follows is entirely my own personal opinion, not
necessarily that of the ARISSat-1 team or anyone else. I might be
missing information that would affect my analysis.
Ken's plot is extremely valuable. It strongly suggests battery failure,
not a negative power budget as Tony, AA
On 8/13/11 6:11 PM, Dave Guimont wrote:
> How about you designing circuitry/program to charge "cells" individually
> rather than the "battery". Or has that been tried??
That's a great idea; I wish I thought of it first, but it was Lou
McFadden W5DID who published a paper at the AMSAT Symposium a
, August 13, 2011 6:11 PM
To: Phil Karn
Cc: amsat-bb@amsat.org
Subject: [amsat-bb] Re: ARISSat-1 battery eclipse voltage decreasing
>
>Disclaimer: what follows is entirely my own personal opinion, not
>necessarily that of the ARISSat-1 team or anyone else. I might be
>missing informatio
ARRISat-1 was mainly in eclipse over North America since the launch but
starting August 15 the first orbits over NA will be out of eclipse
and if the batteries can hold and the inside temp does not cooked the
electronics we will have a chance to listen and work it at a more
suitable time slo
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