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CX2SA > SATDIG 26.03.14 21:02l 298 Lines 8454 Bytes #999 (0) @ WW
BID : AMSATBB9111
Read: GUEST
Subj: AMSAT-BB-digest V9 111
Path: IZ3LSV<IK2XDE<DB0RES<DB0ANF<CX2SA
Sent: 140326/1902Z @:CX2SA.SAL.URY.SA #:4709 [Salto] FBB7.00e $:AMSATBB9111
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: SO-50 Over Europe (Peter Wilson)
2. Re: Malaysian airliner puzzle (Phil Karn)
3. test msg (Dale Hershberger)
4. K&R Yoksh (K&R Yoksh)
5. Re: Geostationary sat. (Joe Fitzgerald)
6. GOT GRIDS ? (wa4hfn@xxxxxxx.xxxx
7. Got Grids? and 5 in em55 (wa4hfn@xxxxxxx.xxxx
8. ISS Crew - Delayed Arrival (Clint Bradford)
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Message: 1
Date: Tue, 25 Mar 2014 21:17:21 -0000
From: "Peter Wilson" <protest@xxxxxxxxxxx.xxx>
To: "'M5AKA'" <m5aka@xxxxx.xx.xx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: SO-50 Over Europe
Message-ID: <001701cf486f$9ca5e040$d5f1a0c0$@xxxxxxxxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Trevor,
I guess that makes sense - as long as it's not me!
Peter
G8KEK
From: M5AKA [mailto:m5aka@xxxxx.xx.xxx
Sent: 25 March 2014 09:34
To: Peter Wilson; amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] SO-50 Over Europe
Hi Peter,
"Easy Sats" is a misnomer, the FM satellites are only straightforward to
operate through as long as there are no more than four or five satellite
operators within the footprint. That's hardly ever the case for Europe or I
guess the East and West coasts of the USA.
73 Trevor M5AKA
On Monday, 24 March 2014, 23:15, Peter Wilson <protest@xxxxxxxxxxx.xxx
<mailto:protest@xxxxxxxxxxx.xxx> > wrote:
To all in Europe.....
We have just had an overhead pass of SO-50 and yet again, not one successful
QSO.
I heard many stations trying to access the bird but not one station managed
a two way contact.
Can any experienced European operator explain to me what is happening.
I thought the FM birds were supposed to be the easy ones?
Peter
G8KEK
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. <mailto:AMSAT-BB@xxxxx.xxx.> Opinions
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------------------------------
Message: 2
Date: Tue, 25 Mar 2014 16:18:02 -0700
From: Phil Karn <karn@xxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Malaysian airliner puzzle
Message-ID: <53320EAA.5020403@xxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Finally, (some) technical details, though still not as many as I'd like.
https://www.facebook.com/permalink.php?story_fbid=740971779281171&id=178566888
854999&stream_ref=10
The original analysis was based either on a round trip time measurement
or a reported transmitter power, which depends on satellite elevation.
Either way, it could only yield a locus of positions that fell on a
circle of constant distance (or elevation angle) to the satellite.
Erasing the part of the circle that could not be reached with the
available fuel left the arcs. I don't understand why there would have
been a gap between the two around the equator.
The big problem was to solve the ambiguity -- northern hemisphere or
southern?
I believe the answer relies on the fact that Inmarsat 3 F1 is an old
satellite launched in 1996. Its inclination has risen to 1.67 degrees,
probably because its stationkeeping fuel has run out.
The total measured Doppler would be the sum of the Doppler caused by the
plane's motion with respect to the satellite and that due to the
satellite's non-zero motion with respect to the earth. Judging from the
diagrams on heavens-above.com, I'd say the satellite was moving
southward during the flight, which took place between roughly midnight
and dawn local time. Since the plane was in the southern hemisphere, the
satellite was moving toward it, resulting in a higher net frequency
shift than if the plane had been in the northern hemisphere.
Note the shapes of the curves in the plot titled "MH370: Burst Frequency
Offset". The southerly track has the Doppler increasing with time, while
the northerly track would have it decreasing with time.
The analysis does have to assume a certain fixed speed for the aircraft
but it seems to produce consistent results.
It should be possible to replicate Inmarsat's graphs using the three
line elements for the satellite and their presumed ground tracks for the
aircraft.
Phil
------------------------------
Message: 3
Date: Tue, 25 Mar 2014 16:25:46 -0800
From: Dale Hershberger <daleh@xxxxxx.xxx>
To: "amsat.bbs" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] test msg
Message-ID: <53321E8A.2000508@xxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
test.
------------------------------
Message: 4
Date: Tue, 26 Mar 2014 10:27:58 +0100
From: K&R Yoksh <yokshs@xxxxxxxxx.xxx>
To: "hwyman1968" <hwyman1968@xxxxx.xxx>, "radio" <radio@xxxxxx.xxx>,
"peter" <peter@xxxxx.xxx>, "k0bsj" <k0bsj@xxxxxxxxxxx.xxx>, "rel3005"
<rel3005@xxxxx.xxx>, "boprie" <boprie@xxx.xxx>, "amsat bb"
<amsat-bb@xxxxx.xxx>, "ve2ckn" <ve2ckn@xxxxxxx.xxx>, "ka2ctn78"
<ka2ctn78@xxx.xxx>
Subject: [amsat-bb] K&R Yoksh
Message-ID: <3dd59825da43$93239182$e517fd6c$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
http://alltrendskindlestore.com/gtxz/news_fx.php
K&R Yoksh
------------------------------
Message: 5
Date: Wed, 26 Mar 2014 08:06:59 -0400
From: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Geostationary sat.
Message-ID: <5332C2E3.5040504@xxxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> At 05:25 PM 3/24/2014 -0400, "Anthony Japha" <tjjapha@xxxxxxxxx.xxx>
> wrote:
>> Great news! Thank you Peter et. al.
>> How abt a discussion here about how we North Americans might make use
>> of this opportunity?
>> 73,
>> Tony, N2UN
>> LM 183
>
Well, there is a nice article in the Jan/Feb AMSAT Journal about
building a remote controlled station ...
I am already daydreaming about a link from a future cubesat via this bird.
-Joe KM1P
------------------------------
Message: 6
Date: Wed, 26 Mar 2014 13:20:32 +0000 (UTC)
From: wa4hfn@xxxxxxx.xxx
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] GOT GRIDS ?
Message-ID:
<1209582616.816967.1395840032970.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxx
xxxx.xxx>
Content-Type: text/plain; charset=utf-8
Got Grids Award # 2 goes to WA5KBH congrats George. Thank you for your
support.
WA4HFN em55 Damon
------------------------------
Message: 7
Date: Wed, 26 Mar 2014 13:40:50 +0000 (UTC)
From: wa4hfn@xxxxxxx.xxx
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Got Grids? and 5 in em55
Message-ID:
<2082600869.817724.1395841250035.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxx
xxxx.xxx>
Content-Type: text/plain; charset=utf-8
Go to www.starcommgroup.org click on the awards tab to see the
awards and the rules.
Please note that the 5 in em55 rules have changed, If you work 5 ops that
have the award ,then you qualify ,Send in the log of your contacts to WA4HFN
or WA4NVM. There is a list of award holders on the page for you to check to
see if you have 5 contacts
This award if free and any donations are to be sent to AMSAT in the name of
the award you qualified for.
The Star Comm Group is non profit, we want to support the use of the
satellites and Amsat NA
We also encourage the use of DSTAR
Thank you all and good hunting
WA4HFN em55 Damon
------------------------------
Message: 8
Date: Wed, 26 Mar 2014 07:37:22 -0700
From: Clint Bradford <clintbradford@xxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] ISS Crew - Delayed Arrival
Message-ID: <F765B186-7D8A-4076-8347-63DD21A4A7C0@xxx.xxx>
Content-Type: text/plain; CHARSET=US-ASCII
The next trio of crew members destined for the International Space Station
is now looking
forward to a Thursday arrival at the orbiting laboratory after their Soyuz
spacecraft was
unable to complete its third thruster burn to fine-tune its approach. Flight
controllers in the
Mission Control Center outside Moscow are now reverting to a backup 34-orbit
rendezvous,
which would result in an arrival and docking at 7:58 p.m. EDT Thursday,
March 27.
-NASA News
------------------------------
_______________________________________________
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!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 9, Issue 111
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