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CX2SA > SATDIG 09.12.13 18:12l 775 Lines 24029 Bytes #999 (0) @ WW
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Today's Topics:
1. Power output for using AO-73 transponder (Paul Stoetzer)
2. Re: Sat-Antennas ...? (Stefan Wagener)
3. Re: Power output for using AO-73 transponder (Wyatt Dirks)
4. UT1FG/MM is in JM96 now at 0801 UTC (Ib Christoffersen)
5. Re: Auburn sat (Rich/wa4bue)
6. AO 73 (Rich/wa4bue)
7. General Telemetry Question (Dave Marthouse)
8. Re: Power output for using AO-73 transponder (Paul Stoetzer)
9. Re: Auburn sat (Jeff Griffin)
10. Re: General Telemetry Question (Alan)
11. Re: General Telemetry Question (Robert Bruninga)
12. Re: General Telemetry Question (David Johnson)
13. Negative Results For TrailBlazer & DragonSat (Armando Mercado)
14. Re: General Telemetry Question (B J)
15. Re: General Telemetry Question (Graham Shirville)
16. Annuncement scheduled for Ham Radio Juno Flyby eperiment
(andy thomas)
----------------------------------------------------------------------
Message: 1
Date: Sun, 8 Dec 2013 15:13:24 -0500
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Power output for using AO-73 transponder
Message-ID:
<CABzOSOppU+-41dqqZjn-qF+j7s0YWJcb9eWmv_51WdxBWgGfwA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
FYI - In a sidebar on their website, AMSAT-UK requests that stations limit
power output to 25W EIRP for using the AO-73's transponder.
"FUNcube-1 / AO-73
Radio Communications Subsystem
? 145.935 MHz BPSK Telemetry 30 or 300 mW
? Inverting SSB/CW transponder 300 mW PEP
- 435.150 ? 435.130 MHz Uplink LSB
- 145.950 ? 145.970 MHz Downlink USB
Educational Telemetry beacon is 300 mW during day and 30 mW at night.
Transponder is only active during night passes.
Please use a maximium uplink power of 5 watts to a 7 dBi gain antenna (25 w
EIRP). Lower power will also work well.
If adjusting for Doppler shift manually try tuning the uplink frequency
while transmitting to keep the downlink constant."
http://amsat-uk.org/
73,
Paul Stoetzer, N8HM
Washington, DC
------------------------------
Message: 2
Date: Sun, 8 Dec 2013 16:03:10 -0600
From: Stefan Wagener <wageners@xxxxx.xxx>
To: Jens Spiess <jens.spiess@xxxxxxx.xx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Sat-Antennas ...?
Message-ID:
<CAKu8kHC5PbNHt+ecuin9r0rEo21DOtiJN5+tC4BvOJZ-7hq89g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hallo Jens,
Schau mal hier:
http://www.eham.net/reviews/detail/2362
http://www.eham.net/reviews/detail/1461
http://www.eham.net/reviews/detail/2359
Viele Gruesse,
Stefan, VE4NSA
On Sat, Dec 7, 2013 at 10:10 AM, Jens Spiess <jens.spiess@xxxxxxx.xx> wrote:
> Hello...
> if somebody has experiences for the satellite radio over present,
> functioning amateur radio satellites with the following antennas:
>
> EB-144 M2 und EB-432 M2 (following the Link) ???
>
> Dignity these antennas is sufficient around more or less adequate company
> to be able to do over the satellites available still nowadays, without
> rotors, however, with preamplifiers...
> or would you advise me against the investment in these antennas from the
> start??? Use here an IC910H.
>
> I have worked during earlier years very well with the MASPRO antennas and
> rotors, now might, however, again - with as low as possible expenditure-
> get into the amateur radio over satellite.
>
> Thanks for answers ,
> Jens / HB9JOI
>
> _______________________________________________
> 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: Sun, 8 Dec 2013 22:39:40 -0600
From: Wyatt Dirks <wyattdirks@xxx.xxx>
To: Paul Stoetzer <n8hm@xxxx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Power output for using AO-73 transponder
Message-ID: <BAY179-W95B4F78E6BC78091A88D4BCDD30@xxx.xxx>
Content-Type: text/plain; charset="Windows-1252"
Well tonight I was trying a few things on ao-73. But mid pass I got bored if
you will and I turned around and grabbed my ft817. I had the mic hooked up
and had the stock rubber duck installed already. I dialed in the correct
uplink frequency and did I quick test call and sure enough I saw a trace on
the water fall. I thought I had it set to five watts but after pass looked
and I had it set to 2.5w out. So I heard myself through the transponder
using 2.5w into the stock rubber duck on ft817. The link below is a short
recording of the audio I got.
https://www.dropbox.com/sh/1ggmarxnx2otjxz/Gjh6imD01t/ft817%20rubber%20duck%20
on%20ao73.wav
Anyway it doesn't take much power to work ao73.
73 Wyatt
AC0RA
> Date: Sun, 8 Dec 2013 15:13:24 -0500
> From: n8hm@xxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Power output for using AO-73 transponder
>
> FYI - In a sidebar on their website, AMSAT-UK requests that stations limit
> power output to 25W EIRP for using the AO-73's transponder.
>
> "FUNcube-1 / AO-73
> Radio Communications Subsystem
> ? 145.935 MHz BPSK Telemetry 30 or 300 mW
> ? Inverting SSB/CW transponder 300 mW PEP
> - 435.150 ? 435.130 MHz Uplink LSB
> - 145.950 ? 145.970 MHz Downlink USB
> Educational Telemetry beacon is 300 mW during day and 30 mW at night.
> Transponder is only active during night passes.
> Please use a maximium uplink power of 5 watts to a 7 dBi gain antenna (25 w
> EIRP). Lower power will also work well.
> If adjusting for Doppler shift manually try tuning the uplink frequency
> while transmitting to keep the downlink constant."
>
> http://amsat-uk.org/
>
> 73,
>
> Paul Stoetzer, N8HM
> Washington, DC
> _______________________________________________
> 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: Mon, 9 Dec 2013 09:43:22 +0100
From: "Ib Christoffersen" <oz1my@xxxxxx.xx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] UT1FG/MM is in JM96 now at 0801 UTC
Message-ID: <E9811BBDBABB4BD9AB21DAAB5FF18BD2@xxx.xx>
Content-Type: text/plain; charset="us-ascii"
Hi all,
He is right now in JM96 in the Mediterranean on route to Bulgaria.
73 OZ1MY
Ib
------------------------------
Message: 5
Date: Mon, 09 Dec 2013 06:03:34 -0500
From: "Rich/wa4bue" <richard.siff@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Auburn sat
Message-ID: <7AA9C656F4894A688141FA78F6DAF619@xxxxxxxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Hi all,
Another question AO 73
I made my first contact on AO 73 this weekend with KB2M. I read on the BB
that the frequency was about 10 Khz higher for the uplink and that the
linear transponder wss not stable yet. I did not expect the Doppler to be
shifting as much as it was on both the the QSO freqs and the Telem freqs.
Maybe I had the wrong keps in! The Keps we installed were dated November
23rd.
Thank you for your help.
R
W4BUE / K4AMG
------------------------------
Message: 6
Date: Mon, 09 Dec 2013 06:57:19 -0500
From: "Rich/wa4bue" <richard.siff@xxxxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AO 73
Message-ID: <AB23588F246541AC88A101697B7CE7D4@xxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Sorry David for my mistake.
Are my Keps okay?
----- Original Message -----
Hi Richard.
If you could make the subject something like AO-73 it helps your message
get stored in the correct place in the AMSAT archives which are stored in
thread and date order.
AO-73 will typically have +- 9 kHz of Doppler on 70 cms and +/- 3 kHz on
2m.
Thanks
David
-----Original Message-----
From: Rich/wa4bue <richard.siff@xxxxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Sent: Mon, 9 Dec 2013 11:11
Subject: [amsat-bb] Re: Auburn sat
Hi all,
Another question AO 73
I made my first contact on AO 73 this weekend with KB2M. I read on the BB
that the frequency was about 10 Khz higher for the uplink and that the
linear transponder wss not stable yet. I did not expect the Doppler to be
shifting as much as it was on both the the QSO freqs and the Telem freqs.
Maybe I had the wrong keps in! The Keps we installed were dated November
23rd.
Thank you for your help.
R
W4BUE / K4AMG
_______________________________________________
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: Mon, 9 Dec 2013 08:35:11 -0500
From: "Dave Marthouse" <dmarthouse@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] General Telemetry Question
Message-ID: <ECC958904721437EA384EFABE0DC8DFE@xxxx>
Content-Type: text/plain; charset="us-ascii"
I noticed over the years that satellite beacon downlinks transmit their
telemetry in a form that must be translated by a telemetry app to their
engineering values. Since the information is transmitted from the satellites
why not provide the engineering values in the downlink without the extra
step having to be done on the ground? What is the logic of doing this?
Dave Marthouse N2AAM
dmarthouse@xxxxx.xxx
------------------------------
Message: 8
Date: Mon, 9 Dec 2013 09:36:34 -0500
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Wyatt Dirks <wyattdirks@xxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Power output for using AO-73 transponder
Message-ID:
<CABzOSOopjB_Th2BBr7aW8y3YkOtwFbjm3T63_vbpSZGfh1nsYA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
Wow! 2 watts or so EIRP from inside. That's incredible. What was the
elevation of the satellite at the time?
73,
Paul, N8HM
On Sun, Dec 8, 2013 at 11:39 PM, Wyatt Dirks <wyattdirks@xxx.xxx> wrote:
> Well tonight I was trying a few things on ao-73. But mid pass I got bored
> if you will and I turned around and grabbed my ft817. I had the mic hooked
> up and had the stock rubber duck installed already. I dialed in the correct
> uplink frequency and did I quick test call and sure enough I saw a trace on
> the water fall. I thought I had it set to five watts but after pass looked
> and I had it set to 2.5w out. So I heard myself through the transponder
> using 2.5w into the stock rubber duck on ft817. The link below is a short
> recording of the audio I got.
>
>
>
https://www.dropbox.com/sh/1ggmarxnx2otjxz/Gjh6imD01t/ft817%20rubber%20duck%20
on%20ao73.wav
>
> Anyway it doesn't take much power to work ao73.
>
> 73 Wyatt
> AC0RA
>
> > Date: Sun, 8 Dec 2013 15:13:24 -0500
> > From: n8hm@xxxx.xxx
> > To: amsat-bb@xxxxx.xxx
> > Subject: [amsat-bb] Power output for using AO-73 transponder
>
> >
> > FYI - In a sidebar on their website, AMSAT-UK requests that stations
> limit
> > power output to 25W EIRP for using the AO-73's transponder.
> >
> > "FUNcube-1 / AO-73
> > Radio Communications Subsystem
> > ? 145.935 MHz BPSK Telemetry 30 or 300 mW
> > ? Inverting SSB/CW transponder 300 mW PEP
> > - 435.150 ? 435.130 MHz Uplink LSB
> > - 145.950 ? 145.970 MHz Downlink USB
> > Educational Telemetry beacon is 300 mW during day and 30 mW at night.
> > Transponder is only active during night passes.
> > Please use a maximium uplink power of 5 watts to a 7 dBi gain antenna
> (25 w
> > EIRP). Lower power will also work well.
> > If adjusting for Doppler shift manually try tuning the uplink frequency
> > while transmitting to keep the downlink constant."
> >
> > http://amsat-uk.org/
> >
> > 73,
> >
> > Paul Stoetzer, N8HM
> > Washington, DC
> > _______________________________________________
> > 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: 9
Date: Mon, 9 Dec 2013 09:37:43 -0500
From: "Jeff Griffin" <kb2m@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Auburn sat
Message-ID: <00f301cef4ec$38ccfb20$aa66f160$@xxx>
Content-Type: text/plain; charset="us-ascii"
I also worked AO-73 for the first time this weekend (thanks all involved
for the new sat) and noticed the frequency shift also. As the bird came up I
found my D/L at about 5k higher than the advertised center frequency. What
was different was that by the end of the pass, the D/L ended up about 10k
higher than the Doppler adjustment supplied by PCSat32. It was like, as the
transponder was being used and warmed up it went higher in frequency. I
found that during several QSO's I made, I had to adjust the D/L up several
times. As I had just worked VO-52 this was noticeably different. I'm not
complaining, I just thought this worth mentioning :-)
73 Jeff kb2m
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Rich/wa4bue
Sent: Monday, December 9, 2013 6:04 AM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Auburn sat
Hi all,
Another question AO 73
I made my first contact on AO 73 this weekend with KB2M. I read on the BB
that the frequency was about 10 Khz higher for the uplink and that the
linear transponder wss not stable yet. I did not expect the Doppler to be
shifting as much as it was on both the the QSO freqs and the Telem freqs.
Maybe I had the wrong keps in! The Keps we installed were dated November
23rd.
Thank you for your help.
R
W4BUE / K4AMG
------------------------------
Message: 10
Date: Mon, 9 Dec 2013 08:44:41 -0600
From: Alan <wa4sca@xxxxx.xxx>
To: "'Dave Marthouse'" <dmarthouse@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Cc: CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: General Telemetry Question
Message-ID: <E5686D891F6A4A588CBDDBC70AA824F6@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
David,
It is much more efficient in terms of the information transmitted, hence
power and bandwidth, to use
the raw binary/hex for transmission. It also saves the programming and
memory in the satellite CPU.
The combination frees up resources which can be otherwise used. It works
well given the almost
universal availability of personal computers. I recall, vaguely, there have
been a few birds with
some "quick look, real people" data, but I may be in error.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: amsat-bb-bounces@xxxxx.xxx
<[mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Dave Marthouse
<Sent: Monday, December 09, 2013 7:35 AM
<To: amsat-bb@xxxxx.xxx
<Subject: [amsat-bb] General Telemetry Question
<
<I noticed over the years that satellite beacon downlinks transmit their
<telemetry in a form that must be translated by a telemetry app to their
<engineering values. Since the information is transmitted from
<the satellites
<why not provide the engineering values in the downlink without
<the extra
<step having to be done on the ground? What is the logic of doing this?
<
<
<
<
<
<Dave Marthouse N2AAM
<dmarthouse@xxxxx.xxx
<
<
<_______________________________________________
<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: Mon, 9 Dec 2013 09:44:56 -0500
From: Robert Bruninga <bruninga@xxxx.xxx>
To: Dave Marthouse <dmarthouse@xxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: General Telemetry Question
Message-ID: <deb8674568360ad0255ba174849b5947@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Answer: Engineering efficiency..
There is far more computing power on the ground than the satellite. Also,
KISS principle. Also, calibration can be done without modifying flight
code. And finally, it is far more compact to send binary or hex than
human readable decimal.
Bob, WB4aPR
-----Original Message-----
> why not provide the engineering values in the downlink without the extra
step having to be done on the ground? What is the logic of doing this?
------------------------------
Message: 12
Date: Mon, 9 Dec 2013 14:49:33 +0000
From: David Johnson <dave@xxxxxxxxxxxxxxxxx.xxx>
To: Dave Marthouse <dmarthouse@xxxxx.xxx>
Cc: AmsatBB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: General Telemetry Question
Message-ID:
<CAB4OBPUNA=hXz_2LTx9HUr5Sh0idkO+_Uyi15JQuPMOjhjVu4A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi,
In the case of FUNcube the on board sensors give their readings as n bit
values when they are interrogated. This data is agregated into a data frame
for transmission using forward error correction to improve the s/n ratio.
The problem with on board conversion is that you would have to store the
scaling/offset/logarithmic values for all channels on board, in rom.
These are usually only characterised during thermal cycling / illumination
testing etc and would have to be uploaded to the satellite rom. Not
necessarily a simple task.
It is easier to do it on the ground where we can tweak the calculation
factors.
73
Dave, g4dpz
On 9 Dec 2013 13:52, "Dave Marthouse" <dmarthouse@xxxxx.xxx> wrote:
> I noticed over the years that satellite beacon downlinks transmit their
> telemetry in a form that must be translated by a telemetry app to their
> engineering values. Since the information is transmitted from the
> satellites
> why not provide the engineering values in the downlink without the extra
> step having to be done on the ground? What is the logic of doing this?
>
>
>
>
>
> Dave Marthouse N2AAM
> dmarthouse@xxxxx.xxx
>
>
> _______________________________________________
> 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: Mon, 9 Dec 2013 10:05:02 -0500
From: "Armando Mercado" <am25544@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Negative Results For TrailBlazer & DragonSat
Message-ID: <E92759A884E34FCEABD3B15D15BBE160@xxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello,
Listened for Trailblazer (possible 39382)
during this morning's pass. Heard a few
CW characters on 437.428 at 1432 UTC,
which could have been AAuSat-3, but no
1200 AFSK.
Nothing heard from DragonSat on 145.870.
DO-64 was on and loud near the end of
the 2013-064 "train" pass.
73 Armando N8IGJ
------------------------------
Message: 14
Date: Mon, 9 Dec 2013 15:33:09 +0000
From: B J <va6bmj@xxxxx.xxx>
To: APBIDDLE@xxxxxxx.xxx
Cc: amsat-bb@xxxxx.xxxx CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: General Telemetry Question
Message-ID:
<CAP7QzkNoAA4ybR_cO-J8dquS=A=eAAkRhNSSp0tnqhCC6U-OXQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On 12/9/13, Alan <wa4sca@xxxxx.xxx> wrote:
> David,
>
> It is much more efficient in terms of the information transmitted, hence
> power and bandwidth, to use
> the raw binary/hex for transmission. It also saves the programming and
> memory in the satellite CPU.
> The combination frees up resources which can be otherwise used. It works
> well given the almost
> universal availability of personal computers. I recall, vaguely, there have
> been a few birds with
> some "quick look, real people" data, but I may be in error.
ARRISat transmitted some of its operating data on FM using a voice
synthesizer.
73s
Bernhard VA6BMJ @ DO33FL
<snip>
------------------------------
Message: 15
Date: Mon, 9 Dec 2013 16:31:08 -0000
From: "Graham Shirville" <g.shirville@xxxxxxxxxx.xxx>
To: <APBIDDLE@xxxxxxx.xxx>, "'Dave Marthouse'" <dmarthouse@xxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Cc: CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: General Telemetry Question
Message-ID: <06501E10598D4154A81AD646708D017C@xxxxxxx.xxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi All,
Just to confuse ..FUNcube-1 transmits some telemetry in RAW and some in
human readable format. The latter comes from the GOMspace EPS which is
powering our baby!
cheers
Graham
G3VZV
-----Original Message-----
From: Alan
Sent: Monday, December 09, 2013 2:44 PM
To: 'Dave Marthouse' ; amsat-bb@xxxxx.xxx
Cc: CC
Subject: [amsat-bb] Re: General Telemetry Question
David,
It is much more efficient in terms of the information transmitted, hence
power and bandwidth, to use
the raw binary/hex for transmission. It also saves the programming and
memory in the satellite CPU.
The combination frees up resources which can be otherwise used. It works
well given the almost
universal availability of personal computers. I recall, vaguely, there have
been a few birds with
some "quick look, real people" data, but I may be in error.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: amsat-bb-bounces@xxxxx.xxx
<[mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Dave Marthouse
<Sent: Monday, December 09, 2013 7:35 AM
<To: amsat-bb@xxxxx.xxx
<Subject: [amsat-bb] General Telemetry Question
<
<I noticed over the years that satellite beacon downlinks transmit their
<telemetry in a form that must be translated by a telemetry app to their
<engineering values. Since the information is transmitted from
<the satellites
<why not provide the engineering values in the downlink without
<the extra
<step having to be done on the ground? What is the logic of doing this?
<
<
<
<
<
<Dave Marthouse N2AAM
<dmarthouse@xxxxx.xxx
<
<
<_______________________________________________
<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: 16
Date: Mon, 9 Dec 2013 17:04:21 +0000 (GMT)
From: andy thomas <andythomasmail@xxxxx.xx.xx>
To: amsat <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Annuncement scheduled for Ham Radio Juno Flyby
eperiment
Message-ID:
<1386608661.20649.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Following is from the American Geophyiscal Union website (time is San
Franscisco time)
http://fallmeeting.agu.org/2013/media-center/press-conferences/#juno
Science from Juno?s Earth Flyby
Tuesday, 10 December
10:30 a.m.
In October, the Jupiter-bound Juno spacecraft did a flyby of Earth
before its long journey. The Juno team presents a low-resolution Earth
flyby video as well as data acquired by the spacecraft as it zipped past the
home planet. Team members will also discuss results from the
mission?s outreach campaign inviting amateur radio operators to ?Say Hi
to Juno? as the spacecraft passed, and the scientific goals for the
mission once it reaches Jupiter.
Participants:
Scott Bolton, Juno principal investigator, Southwest Research Institute, San
Antonio, Texas, USA;
John Joergensen, Juno star-camera team lead, Danish Technical University,
Copenhagen, Denmark;
Bill Kurth, co-investigator for the Juno Waves Investigation, University of
Iowa, Iowa City, Iowa, USA.
Sessions: SM21E, SM33B
73 de andy g0sfj
------------------------------
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End of AMSAT-BB Digest, Vol 8, Issue 448
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