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CX2SA > SATDIG 19.11.17 13:31l 745 Lines 20337 Bytes #999 (0) @ WW
BID : AMSATBB12301
Read: GUEST
Subj: AMSAT-BB-digest V12 301
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Sent: 171119/1124Z @:CX2SA.SAL.URY.SOAM #:26988 [Salto] FBB7.00e $:AMSATBB12301
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. RadFox Transmission Timing (John Papay)
2. AO-91 TLEs/KEPS with FoxTelem (Chris Thompson)
3. Re: AO-91 Passes & record (Chris Thompson)
4. Re: Fox 1B/RadFxSat launched successfully (Chris Thompson)
5. Raspberry Pi SATGATE (vk4tec@xxxxxxxxxxxxx.xxxx
6. RadFXSat Fox 1B TX (vk4tec@xxxxxxxxxxxxx.xxxx
7. Re: RadFXSat Fox 1B TX (Rick Kowalewski)
8. Re: AMSAT Fox 1B heard over India (Nitin Muttin)
9. Geo "test"keps (Joe Pereira)
10. Re: Geo "test"keps (Dani EA4GPZ)
11. Re: Geo "test"keps (Joe Pereira)
12. Re: Geo "test"keps (Simon Brown)
13. Re: Geo "test"keps (Joe Pereira)
14. Re: Geo "test"keps (Simon Brown)
15. Re: Geo "test"keps (Simon Brown)
16. Re: Geo "test"keps (Dani EA4GPZ)
----------------------------------------------------------------------
Message: 1
Date: Sat, 18 Nov 2017 15:05:35 -0500
From: John Papay <john@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] RadFox Transmission Timing
Message-ID: <20171118204010.1D8097FBA@xxxxxxxxxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
For those who have not tried listening for RadFox,
here is what is being sent:
Transmission occur every 130 seconds or so and they
last about 13-14 seconds or so. Otherwise there is no
signal from the satellite.
Transmissions start with 2 seconds of dead carrier,
followed by 5 seconds of data only. Then there is
an announcement with data underneath that lasts about
3.6 seconds, followed by 1 second of data only. Finally
the transmission concludes with approximately 1.7 seconds
of dead carrier. All times are approximate.
The signal is good.
Congratulations to the engineering team for this
successful mission. We are hopeful that the satellite will
perform well when fully operational.
73,
John K8YSE
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------------------------------
Message: 2
Date: Sat, 18 Nov 2017 20:20:13 -0500
From: Chris Thompson <g0kla@xxxx.xxx>
To: "AMSAT-BB@xxxxx.xxxx <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] AO-91 TLEs/KEPS with FoxTelem
Message-ID:
<CAJOf0+s5p3ei=Su4o1imX0eX=5u3h6EdDt_mQ2JS8+5k2ESfbw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
?If you are using FoxTelem and want it to automatically grab the latest
keps, or be in sync with the name you are using in SatPC32, then you need
to change the name of the spacecraft from RadFxSat to AO-91. You can do
that from the spacecraft menu on the setup page. Put AO-91 in the name box
instead of RadFxSat. If you use a different source of TLEs now or in the
future, you can change that field to match.
And no, I'm not able to get the OSCAR number in advance so that I can build
it into the release :) It will be in future releases though.
73
Chris?
--
Chris E. Thompson
chrisethompson@xxxxx.xxx
g0kla@xxxx.xxx
------------------------------
Message: 3
Date: Sat, 18 Nov 2017 20:30:49 -0500
From: Chris Thompson <g0kla@xxxx.xxx>
To: Pedro Converso <pconver@xxxxx.xxx>
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-91 Passes & record
Message-ID:
<CAJOf0+v_N3sUCdWkt_SP=vsXgRu4uVnayy+hn91-FbDLR+ierw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Many thanks Pedro, it was great to see some telemetry from Argentina!
73
Chris
On Sat, Nov 18, 2017 at 1:58 PM, Pedro Converso <pconver@xxxxx.xxx> wrote:
> Live tracking and frequencies available on
> http://amsat.org.ar/pass.htm?sat=ao-91
>
> Voice recorded on orbit 5 at Buenos Aires http://amsat.org.ar/ao-91.wav
>
> Congratulations AMSAT-NA for success !
>
> 73, lu7abf, Pedro
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
--
Chris E. Thompson
chrisethompson@xxxxx.xxx
g0kla@xxxx.xxx
------------------------------
Message: 4
Date: Sat, 18 Nov 2017 20:33:59 -0500
From: Chris Thompson <g0kla@xxxx.xxx>
To: "Edson W. R. Pereira" <ewpereira@xxxxx.xxx>
Cc: "AMSAT-BB@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Fox 1B/RadFxSat launched successfully
Message-ID:
<CAJOf0+tE4LGzA3EvXq4W516oOj1yijGui5psYpu4azPQKatnmQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Edson,
many thanks for sending this in and for the subsequent frames collected
from Brazil. We have very few stations collecting telemetry in South
America, so it was really important to get data from this part of the orbit.
73
Chris
g0kla
On Sat, Nov 18, 2017 at 11:11 AM, Edson W. R. Pereira <ewpereira@xxxxx.xxx>
wrote:
> Received one TLM frame over southern Brazil around 15:34 UTC. Unfortunately
> I forgot to set enable "Upload to Server" on FoxTlm.
>
> This is the contents for the fox2rtmeasurements and Fox2rttelemetry_0_12480
> files.
>
> 20171118153421,2,0,12480,-1,4.660957615276412,0.0,0.0,0.0,0.
> 0,0.0,0.0,0.0,0.0
>
> 20171118153421,2,0,12480,1,2316,3497,3443,1903,1893,1901,
> 1802,1809,2709,2765,3116,2859,3195,2774,1844,1816,0024,1880,
> 1819,1824,2006,0063,0095,1644,1648,0831,0673,1551,2521,2155,
> 0000,0521,196609,0000,0001,0001,0000,0000,0000,0000,0000,0001,0001
>
> 73, Edson PY2SDR
>
>
> On Sat, Nov 18, 2017 at 1:45 PM, Ray Hoad <ray.hoad@xxxxxxxx.xxx> wrote:
>
> > I concur. Use pre-launch TLE for now.
> >
> > Awaiting corrected POST-launch TLEs.
> >
> > Ray Hoad
> > WA5QGD
> > Orbital Elements Manager
> >
> > -----Original Message-----
> > From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Nico
> > Janssen
> > Sent: Saturday, November 18, 2017 06:40
> > To: the2belo@xxx.xxxxxxx.xx.xxx amsat-bb@xxxxx.xxx
> > Subject: Re: [amsat-bb] Fox 1B/RadFxSat launched successfully
> >
> > Ignore my remark on the 20 minute offset. I was checking against
> > a wrong TLE set. The pre-launch TLE set should still be used until
> > really measured TLE sets will be published later today.
> >
> > 73,
> > Nico PA0DLO
> >
> > On 18-11-17 12:46, Jeff A. Boyd wrote:
> > > On Sat, 18 Nov 2017 12:24:33 +0100, Nico Janssen <hamsat@xxxxxx.xx>
> > wrote:
> > >
> > >> The pre-lauch TLE set appears to be almost 20 minutes late.
> > > When should we expect an updated set? After it starts transmitting?
> > >
> >
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership.
> Opinions
> > expressed
> > are solely those of the author, and do not reflect the official views of
> > AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >
> >
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership.
> Opinions
> > expressed
> > are solely those of the author, and do not reflect the official views of
> > AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
--
Chris E. Thompson
chrisethompson@xxxxx.xxx
g0kla@xxxx.xxx
------------------------------
Message: 5
Date: Sun, 19 Nov 2017 10:15:13 +1000
From: <vk4tec@xxxxxxxxxxxxx.xxx>
To: "AMSAT" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Raspberry Pi SATGATE
Message-ID: <01ab01d360cb$7a0a2870$6e1e7950$@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hello
I have made an install script to make a raspberry pi rtl sdr SATGATE
Here is the script
http://tech-software.net/satgate/satgate.htm
Andrew VK4TEC
------------------------------
Message: 6
Date: Sun, 19 Nov 2017 11:13:45 +1000
From: <vk4tec@xxxxxxxxxxxxx.xxx>
To: "AMSAT" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] RadFXSat Fox 1B TX
Message-ID: <01e001d360d3$a7c15e70$f7441b50$@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hello
I have seen the new bird a few times from other people now as recorded on an
SDR
I am seeing a short drift in tx frequency from 145.900 up to 145.960 MHz on
startup
Is this the LO coming into lock or a battery droop ?
Andrew VK4TEC
------------------------------
Message: 7
Date: Sun, 19 Nov 2017 14:47:04 +0800
From: Rick Kowalewski <rick@xxxxxx.xxx>
To: vk4tec@xxxxxxxxxxxxx.xxxxxxxxxxxxxx@xxxxx.xxx >> 'AMSAT BB'"
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] RadFXSat Fox 1B TX
Message-ID: <9b2da221-4efd-b601-1ec5-7ace670e380e@xxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
That "drift" is the characteristic ?Fox Tail? of the Fox-1 series FM
transmitter.
Read here:
http://www.arrl.org/news/view/radfxsat-fox-1b-launched-successfully-designated
-ao-91
73,
Rick VK6RK
On 19/11/2017 09:13, vk4tec@xxxxxxxxxxxxx.xxx wrote:
> Hello
>
> I have seen the new bird a few times from other people now as recorded on an
> SDR
>
> I am seeing a short drift in tx frequency from 145.900 up to 145.960 MHz on
> startup
>
> Is this the LO coming into lock or a battery droop ?
>
> Andrew VK4TEC
------------------------------
Message: 8
Date: Sun, 19 Nov 2017 08:41:42 +0000 (UTC)
From: Nitin Muttin <vu3tyg@xxxxx.xx.xx>
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AMSAT Fox 1B heard over India
Message-ID: <816758319.1273004.1511080902566@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Good signal on 11/19 06.30 UTC using ICOM 821H. no decode on foxtelm?73
Nitin [VU3TYG]
From: "andrew@xxxxxxxxxxxxx.xxxx <andrew@xxxxxxxxxxxxx.xxx>
To: AMSAT <amsat-bb@xxxxx.xxx>
Sent: Saturday, 18 November 2017 10:13 PM
Subject: [amsat-bb] AMSAT Fox 1B heard over Australia
Fox 1B heard over Australia
AirSpy Mini. Arrow Antenna 20 dB PreAmp
18/11/2017 15:02 UTC
Andrew VK4TEC
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Sun, 19 Nov 2017 20:09:37 +1030
From: Joe Pereira <joevk5ei@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Geo "test"keps
Message-ID:
<CAEW3Gk+v18wSti1cKVFJeGLw_z7w2=RW=K50s6UcjxfS=Lci3A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Can someone please calculate for me a set of "dummy" geostationary keps for
my location PF95GD
I need the satellite to be at azimuth 180 deg and elevation 90 deg
I have tried several attempts and cannot get it precise :(
JP
------------------------------
Message: 10
Date: Sun, 19 Nov 2017 11:11:10 +0100
From: Dani EA4GPZ <daniel@xxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Geo "test"keps
Message-ID: <97f2f542-fa01-57ff-a7f9-530f216f3626@xxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
El 19/11/17 a las 10:39, Joe Pereira escribi?:
> Can someone please calculate for me a set of "dummy" geostationary keps for
> my location PF95GD
>
> I need the satellite to be at azimuth 180 deg and elevation 90 deg
>
> I have tried several attempts and cannot get it precise :(
Hi Joe,
This is impossible. Elevation 90? would only be possible for a station
right on the equator. At your latitude (-34.875) the maximum elevation
you can get from a geostationary satellite is 55.125?, and the azimuth
for that elevation would be 0?.
73,
Dani.
------------------------------
Message: 11
Date: Sun, 19 Nov 2017 20:53:16 +1030
From: Joe Pereira <joevk5ei@xxxxx.xxx>
To: Dani EA4GPZ <daniel@xxxxxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Geo "test"keps
Message-ID:
<CAEW3Gk+e7Yf5gV1LoGoSF=rvmzqJqtLUEWrPEgsLEj36o7-3jA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Thanks for your reply Dani, I need it above my QTH not on the equator.
I would have thought a geo sat can be positioned anywhere above the earth,
or am I wrong ?
On Sun, Nov 19, 2017 at 8:41 PM, Dani EA4GPZ <daniel@xxxxxxxx.xxx> wrote:
> El 19/11/17 a las 10:39, Joe Pereira escribi?:
> > Can someone please calculate for me a set of "dummy" geostationary keps
> for
> > my location PF95GD
> >
> > I need the satellite to be at azimuth 180 deg and elevation 90 deg
> >
> > I have tried several attempts and cannot get it precise :(
>
> Hi Joe,
>
> This is impossible. Elevation 90? would only be possible for a station
> right on the equator. At your latitude (-34.875) the maximum elevation
> you can get from a geostationary satellite is 55.125?, and the azimuth
> for that elevation would be 0?.
>
> 73,
>
> Dani.
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 12
Date: Sun, 19 Nov 2017 10:36:14 -0000
From: "Simon Brown" <simon@xxxxxxxxx.xxx>
To: "'Joe Pereira'" <joevk5ei@xxxxx.xxx>, "'Dani EA4GPZ'"
<daniel@xxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Geo "test"keps
Message-ID: <01ff01d36122$39604870$ac20d950$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
You are wrong, a GEO *must* be over the equator, see the article in Wireless
World, 1945 from Arthur C. Clarke ? .
http://lakdiva.org/clarke/1945ww/
Simon Brown, G4ELI
www.dxgalaxy.com
www.sdr-radio.com
www.sdr-satellites.com
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Joe Pereira
Sent: 19 November 2017 10:23
To: Dani EA4GPZ <daniel@xxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Geo "test"keps
Thanks for your reply Dani, I need it above my QTH not on the equator.
I would have thought a geo sat can be positioned anywhere above the earth,
or am I wrong ?
------------------------------
Message: 13
Date: Sun, 19 Nov 2017 21:08:23 +1030
From: Joe Pereira <joevk5ei@xxxxx.xxx>
To: Simon Brown <simon@xxxxxxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Geo "test"keps
Message-ID:
<CAEW3GkLiJeAbZFdn0GND4kfkaWV3CXThZzhWno-OYktZ62vL-g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
ok lets just call it a fixed positioned satellite above my QTH
On Sun, Nov 19, 2017 at 9:06 PM, Simon Brown <simon@xxxxxxxxx.xxx> wrote:
> You are wrong, a GEO *must* be over the equator, see the article in
> Wireless World, 1945 from Arthur C. Clarke ? .
>
> http://lakdiva.org/clarke/1945ww/
>
> Simon Brown, G4ELI
>
> www.dxgalaxy.com
> www.sdr-radio.com
> www.sdr-satellites.com
>
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Joe
> Pereira
> Sent: 19 November 2017 10:23
> To: Dani EA4GPZ <daniel@xxxxxxxx.xxx>
> Cc: amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] Geo "test"keps
>
> Thanks for your reply Dani, I need it above my QTH not on the equator.
>
> I would have thought a geo sat can be positioned anywhere above the earth,
> or am I wrong ?
>
>
------------------------------
Message: 14
Date: Sun, 19 Nov 2017 10:40:01 -0000
From: "Simon Brown" <simon@xxxxxxxxx.xxx>
To: "'Joe Pereira'" <joevk5ei@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Geo "test"keps
Message-ID: <020401d36122$c0eb3a20$42c1ae60$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Ah,
That?s no problem at all, you just have to redefine the laws of physics and
you?re good to go ? . Probably easier to move your QTH.
Simon Brown, G4ELI
<http://www.dxgalaxy.com/> www.dxgalaxy.com
<http://www.sdr-radio.com/> www.sdr-radio.com
<http://www.sdr-satellites.com> www.sdr-satellites.com
From: Joe Pereira [mailto:joevk5ei@xxxxx.xxxx
Sent: 19 November 2017 10:38
To: Simon Brown <simon@xxxxxxxxx.xxx>
Cc: Dani EA4GPZ <daniel@xxxxxxxx.xxx>; amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Geo "test"keps
ok lets just call it a fixed positioned satellite above my QTH
On Sun, Nov 19, 2017 at 9:06 PM, Simon Brown <simon@xxxxxxxxx.xxx
<mailto:simon@xxxxxxxxx.xxx> > wrote:
You are wrong, a GEO *must* be over the equator, see the article in Wireless
World, 1945 from Arthur C. Clarke ? .
http://lakdiva.org/clarke/1945ww/
Simon Brown, G4ELI
www.dxgalaxy.com <http://www.dxgalaxy.com>
www.sdr-radio.com <http://www.sdr-radio.com>
www.sdr-satellites.com <http://www.sdr-satellites.com>
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxx
<mailto:amsat-bb-bounces@xxxxx.xxx> ] On Behalf Of Joe Pereira
Sent: 19 November 2017 10:23
To: Dani EA4GPZ <daniel@xxxxxxxx.xxx <mailto:daniel@xxxxxxxx.xxx> >
Cc: amsat-bb@xxxxx.xxx <mailto:amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Geo "test"keps
Thanks for your reply Dani, I need it above my QTH not on the equator.
I would have thought a geo sat can be positioned anywhere above the earth,
or am I wrong ?
------------------------------
Message: 15
Date: Sun, 19 Nov 2017 10:43:45 -0000
From: "Simon Brown" <simon@xxxxxxxxx.xxx>
To: "'Gabriel Zeifman'" <gabrielzeifman@xxxxx.xxx>, "'Joe Pereira'"
<joevk5ei@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Geo "test"keps
Message-ID: <020d01d36123$46100140$d23003c0$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Well,
What if we were to add some motors and sails and stuff to keep it in position?
Simon Brown, G4ELI
<http://www.dxgalaxy.com/> www.dxgalaxy.com
<http://www.sdr-radio.com/> www.sdr-radio.com
<http://www.sdr-satellites.com> www.sdr-satellites.com
From: Gabriel Zeifman [mailto:gabrielzeifman@xxxxx.xxxx
Sent: 19 November 2017 10:42
To: Joe Pereira <joevk5ei@xxxxx.xxx>
Cc: Simon Brown <simon@xxxxxxxxx.xxx>; amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Geo "test"keps
That would not be a real thing
On Sun, Nov 19, 2017 at 1:38 AM, Joe Pereira <joevk5ei@xxxxx.xxx
<mailto:joevk5ei@xxxxx.xxx> > wrote:
ok lets just call it a fixed positioned satellite above my QTH
------------------------------
Message: 16
Date: Sun, 19 Nov 2017 12:17:29 +0100
From: Dani EA4GPZ <daniel@xxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Geo "test"keps
Message-ID: <e6ef3e94-e301-f017-b058-f2a1198069b4@xxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
El 19/11/17 a las 11:43, Simon Brown escribi?:
> Well,
>
>
>
> What if we were to add some motors and sails and stuff to keep it in
position?
The amount of thrust you would need would be enormous. Roughly the same
thrust that you would need to keep the satellite hovering a few meters
over the ground.
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 12, Issue 301
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