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CX2SA > SATDIG 01.11.12 20:03l 376 Lines 11823 Bytes #999 (0) @ WW
BID : AMSATBB7365
Read: GUEST
Subj: AMSAT-BB-digest V7 365
Path: IZ3LSV<IW0QNL<ON4HU<CX2SA
Sent: 121101/1901Z @:CX2SA.SAL.URY.SA #:3851 [Salto] FBB7.00e $:AMSATBB7365
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. New Japanese Rocket for 2013 (Trevor .)
2. Video of 27th AMSAT-UK Colloquium (Trevor .)
3. a fun week in Florida! (Patrick STODDARD (WD9EWK/VA7EWK))
4. (no subject) (Nick Pugh)
5. Re: [CubeSat] (no subject) (Craig Clark)
6. AMSAT Symposium (Hector Luis HLMS. Martinez Sis)
----------------------------------------------------------------------
Message: 1
Date: Wed, 31 Oct 2012 19:09:43 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] New Japanese Rocket for 2013
Message-ID:
<1351710583.5692.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
JAXA's goal is to have an inexpensive rocket to launch compact low-cost
satellites into orbit. See
http://www.space-travel.com/reports/Japan_Plans_to_Launch_New_Carrier_Rocket_i
n_2013_999.html
73 Trevor M5AKA
----
------------------------------
Message: 2
Date: Wed, 31 Oct 2012 19:47:02 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Video of 27th AMSAT-UK Colloquium
Message-ID:
<1351712822.46694.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Jan Poppeliers ON7UX has put together a short video compilation of the
AMSAT-UK Colloquium held in Guildford, Sept. 14-16.
See http://www.uk.amsat.org/?p=11314
Also on the site:
Kickstarter crowdfunding site launches in the UK
http://www.uk.amsat.org/?p=11311
Radio Amateurs aim to fly new FPGA in space
http://www.uk.amsat.org/?p=11299
73 Trevor M5AKA
AMSAT-UK http://www.amsat-uk.org/
----
------------------------------
Message: 3
Date: Wed, 31 Oct 2012 14:56:33 -0700 (PDT)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] a fun week in Florida!
Message-ID:
<1351720593.6581.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
I made it home an hour ago, after a great week in Florida. The
AMSAT Symposium was great, and thanks to all of those who worked
to put on this event. And, of course, having Hector CO6CBF at
the Symposium made this even better.
On my way home from the Phoenix airport, I stopped at my mailbox.
I had more checks and money orders sitting in their for the so-
called "Hector fund" that arrived in the past week. Again, many
thanks to everyone who has sent or given me contributions to help
with the expenses for this trip. It is obvious that this was
extremely successful - just watch the video from Hector's
presentation on Saturday to see that.
I have incurred expenses related to bringing Hector to the Symposium
totaling $2413.30, and received contributions totaling $1960.00!
The expenses totaled a little more than I had originally estimated
(I was working with an estimate of $2000 in the beginning), but I
never thought I would have received almost $2000 in contributions!!
If there are other contributions in the mail, I will add that to
my spreadsheet and post an update later. I don't think I will need
any other contributions toward this effort. THANK YOU ALL!!!!!!!!
On my way home from the airport, I called Hector. He made it home
OK, and is now in the process of clearing the gear he brought back
from Florida through the processes of Cuban Customs and the Cuban
communications ministry. This is normal, and he was confident he
could get everything cleared without incident. Hector also said he
hopes to be able to post a message here on the -BB tomorrow, in part
to thank everyone that helped make his trip to Florida possible.
Back to pulling more photos from my camera and mobile phone, and
getting caught up on things before going back to work tomorrow.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 4
Date: Wed, 31 Oct 2012 06:16:03 -0500
From: "Nick Pugh" <quadpugh@xxxxxxxxx.xxx>
To: <cubesat@xxxxxxx.xxx>, "'Justin Foley'" <jfoley@xxxxxxx.xxx>,
<Amsat-bb@xxxxx.xxx>
Cc: PaulDarby@xxx.xxxx Travis Steen <travsteen@xxxxx.xxx>,
henry@xxxxxxxxx.xxxxxxxxx Oliver <woliveriii@xxxxx.xxx>,
wxo4547@xxxxxxxxx.xxxxxxxx Henson <amy.henson@xxxxx.xxx>, Chase Savoy
<csavoy1@xxxxx.xxx>, vxb3736@xxxxxxxxx.xxxxxxxxxxxxxxxxxx@xxxxx. com"
<ThomasEbosch@xxxxx.xxx>, johnn902@xxxxx.xxxx Nick Pugh
<NickP@xxxxxxxxxxx.xx>, james.palmer.iii@xxxxx.xxx
Subject: [amsat-bb] (no subject)
Message-ID: <002b01cdb759$1e6f85d0$5b4e9170$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hi All
I have just returned from the AMSAT conference in Orlando FL one of the
European is no longer flying the Clyde Space batteries because of
performance issues. I would like to know the group thoughts on their
batteries and lithium batteries in general.
The AMSAT team is warning us about charging batteries below 0 deg c. In
talking to many teams on ElaNa 4 there does seem too much concern about
charging batteries cold. Please let us know your thoughts. If you desire we
will not publish your responses.
Thanks
nick ARS K5QXJ EM30xa 30.1N 92.1W
Office 337 593 8700
Cell 337 258 2527
Helping UL become a world Class Engineering and Educational School
------------------------------
Message: 5
Date: Thu, 1 Nov 2012 09:38:07 -0000
From: "Craig Clark" <craig.clark@xxxxxxxxxxx.xxx>
To: "Nick Pugh" <quadpugh@xxxxxxxxx.xxx>, <cubesat@xxxxxxx.xxx>,
"Justin Foley" <jfoley@xxxxxxx.xxx>, <Amsat-bb@xxxxx.xxx>
Cc: PaulDarby@xxx.xxxx Travis Steen <travsteen@xxxxx.xxx>,
henry@xxxxxxxxx.xxxxxxxxxxxxx@xxxxx.xxxx wxo4547@xxxxxxxxx.xxxxxxxx
Henson <amy.henson@xxxxx.xxx>, Trey Oliver <woliveriii@xxxxx.xxx>,
Steve <Steve.Greenland@xxxxxxxxxxx.xxx>, Andrew Strain
<andrew.strain@xxxxxxxxxxx.xxx>, vxb3736@xxxxxxxxx.xxxx Chase Savoy
<csavoy1@xxxxx.xxx>, james.palmer.iii@xxxxx.xxxxxxxxxxxxxxxxxx@xxxxx.
com" <ThomasEbosch@xxxxx.xxx>, Nick Pugh <NickP@xxxxxxxxxxx.xx>
Subject: [amsat-bb] Re: [CubeSat] (no subject)
Message-ID:
<D9CBD73DBF3B964EAAD010695221333FDA2798@xxxxxx.xxxxxxxxxx.xxxxx>
Content-Type: text/plain; charset="us-ascii"
Hi Nick,
This is Craig from Clyde Space. I thought I'd best respond to your
email since you suggest that there is a performance issue with one of
our products to the entire CubeSat community.
Our Lithium Polymer cell was selected following an ESA study into
lithium polymer technology. We then were awarded another contract from
ESA to characterise and qualify the cell for space, which went extremely
well. In addition, our battery has been tested by NASA from a safety
perspective to allow it to fly on the shuttle and now on the ISS -
unlike other cells tested at the time, our cells passed these tests no
problem (I can supply this test report if you wish). Finally, we have
supplied over 300 CubeSat batteries in the last 5 years and we now have
several batteries on orbit, including the SDL DICE mission, US Army
nanosatellites, NRO Colony 1 buses, plus many more. To my knowledge,
our battery is the most tested, most widely used and most successful of
any CubeSat battery in the World and I would be happy to put you in
touch with our customers to verify this if you wish. This would not be
the case if there were performance issues with our cell.
In terms of performance below zero, all lithium ion based technology
suffers from performance degradation at low temperatures due to the
internal resistance of the cell increasing, resulting in higher losses
internally and lower available capacity. You can develop specific low
temperature cells, but this is typically at the detriment to other
characteristics of the cell, such as energy density, charge rate, etc.
There is plenty of information on the performance of our cell at
different temperatures and charge/discharge rates on our website in our
Battery User Manual (you can find this here:
http://www.clyde-space.com/cubesat_shop/batteries/16_cubesat-standalone-
battery). Also, we have two papers on our website that detail the tests
performed on the cells and these can be found here:
http://www.clyde-space.com/about_us/papers_and_presentations.
I hope this information helps. I can supply much more information if
you require it, but don't want to clog up peoples inboxes.
There are now a few small, CubeSat companies who are pushing forward
with innovation and lower cost spacecraft products, which is in turn
enabling more and cheaper space missions; this is something that the
small satellite community cannot rely on the large space companies to
do. These small companies all rely on business from many people on
these mailing lists, so please may I ask that care is taken in posting
to these lists with rumours. Please also, if anyone does have concerns,
contact me directly as we have all the analysis, test and flight
heritage data you could need.
Thank you for your time,
Craig.
Craig Clark
www.clyde-space.com <http://www.clyde-space.com/>
Follow us:
www.facebook.com/clydespace <http://www.facebook.com/clydespace>
www.twitter.com/clydespace <http://www.twitter.com/clydespace>
| Registered in Scotland No. SC285287
| at 123 St Vincent Street Glasgow G2 5EA.
From: cubesat-bounces@xxxxxxx.xxx [mailto:cubesat-bounces@xxxxxxx.xxxx
On Behalf Of Nick Pugh
Sent: 31 October 2012 11:16
To: cubesat@xxxxxxx.xxxx 'Justin Foley'; Amsat-bb@xxxxx.xxx
Cc: PaulDarby@xxx.xxxx Travis Steen; henry@xxxxxxxxx.xxxx Trey Oliver;
wxo4547@xxxxxxxxx.xxxx Amy Henson; Chase Savoy; vxb3736@xxxxxxxxx.xxxx
ThomasEbosch@xxxxx. com; johnn902@xxxxx.xxxx Nick Pugh;
james.palmer.iii@xxxxx.xxx
Subject: [CubeSat] (no subject)
Hi All
I have just returned from the AMSAT conference in Orlando FL one of the
European is no longer flying the Clyde Space batteries because of
performance issues. I would like to know the group thoughts on their
batteries and lithium batteries in general.
The AMSAT team is warning us about charging batteries below 0 deg c. In
talking to many teams on ElaNa 4 there does seem too much concern about
charging batteries cold. Please let us know your thoughts. If you desire
we will not publish your responses.
Thanks
nick ARS K5QXJ EM30xa 30.1N 92.1W
Office 337 593 8700
Cell 337 258 2527
Helping UL become a world Class Engineering and Educational School
------------------------------
Message: 6
Date: Thu, 1 Nov 2012 14:04:48 -0500
From: "Hector Luis HLMS. Martinez Sis" <hmartinez@xxx.xxx.xx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AMSAT Symposium
Message-ID:
<6D8FD9A3CA6C464AB36853BEFD5BB9301A18A18033@xxxxxxxxxxx.xxx.xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Hello Guys!
It was a wonderful week in Florida. The AMSAT Symposium was fantastic, the
presentations were excellent. It was really exciting! I enjoyed it so much!
I arrived home yesterday but my email service is not working at home.
It was a wonderful trip! Thanks very much to everyone who helped to come
true this wonderful dream. I will never forget your help, solidarity and
good wishes on this long process. I really appreciate it! My special thanks
to the AMSAT Board of Directors and to Patrick WD9EWK who did an exceptional
job on this process.
The amateur radio by satellites is more than interchange gird locators; the
AMSAT community is like a big family.
Thanks very much again.
73!
Hector, CO6CBF
---
Consulte la Enciclopedia Colaborativa Cubana
http://www.ecured.cu/
------------------------------
_______________________________________________
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 7, Issue 365
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