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CX2SA > SATDIG 17.03.14 07:09l 627 Lines 21645 Bytes #999 (0) @ WW
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Today's Topics:
1. [CAUTION] The Satellite ID of CelesTrack is wrong!
(Roland Zurmely)
2. Re: Malaysian airliner puzzle (Rick Walter)
3. Re: Malaysian airliner puzzle (James Duffey)
4. XF1T active on SO-50 (Humberto Gonz?lez)
5. Malaysian airliner puzzle (Anthony Japha)
6. Re: [CAUTION] The Satellite ID of CelesTrack is wrong!
(Francisco Jim?nez-Mart?n S?nchez)
7. Re: Malaysian airliner puzzle (Rick Walter)
8. FCC Invites Public Comment on 10-10.5 GHz Petition (M5AKA)
9. AC0RA/m (Wyatt Dirks)
10. Re: AC0RA/m (Paul Stoetzer)
11. Re: Malaysian airliner puzzle (Howie DeFelice)
12. Re: Malaysian airliner puzzle (Harvey N. Vordenbaum)
13. Re: Malaysian airliner puzzle (R.T.Liddy)
14. W1AW/7 (Arizona) on satellites, as of 0400 UTC 17 March
(Patrick STODDARD (WD9EWK/VA7EWK))
15. Re: AMSAT-BB Digest, Vol 9, Issue 93 (Leon Steenkamp)
----------------------------------------------------------------------
Message: 1
Date: Sun, 16 Mar 2014 12:44:26 -0700 (PDT)
From: Roland Zurmely <py4zbz@xxxxx.xxx>
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] [CAUTION] The Satellite ID of CelesTrack is wrong!
Message-ID:
<1394999066.81475.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Another error of Celestrak:
The correct TLE for LitSat-1 are those with NORAD # 39568 (not 39570)
The TLE for UAPSAT are actually the TLE for LitSat-1 !
73 de Roland PY4ZBZ
------------------------------
Message: 2
Date: Sun, 16 Mar 2014 16:01:12 -0400
From: Rick Walter <wb3csy@xxxxx.xxx>
To: Anthony Japha <ajapha@xxxxxxxxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Malaysian airliner puzzle
Message-ID: <F5CB1875-4EBF-40F2-A765-87F7120B6F5C@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Tony, since the satellite cannot tell direction of the Ping, only distance,
the arcs have the same distance from the plane making up a half circle. You
would need to sats to hear the plane, see where the two arcs cross to
determine a location.
This is the same way seismic stations locate earthquakes.
Rick - WB3CSY
Sent from Rick's iPhone 5
"Great spirits have always encountered violent opposition from mediocre
minds" - Albert Einstein
> On Mar 16, 2014, at 12:24 PM, "Anthony Japha" <ajapha@xxxxxxxxx.xxx> wrote:
>
> Those so-called arcs that are said to be possible routes for the plane
look much like the outer edge of one of the Inmarsat footprints. Is there
logic behind the arcs or is it oversimplified nonsense? They are said to be
the result of the signals Inmarsat received. But then why wouldn?t it be
possible for the plane to be anywhere in the footprint?
>
> I?m sure many in our group have good ideas. I?m not trying to start a
discussion of the entire mystery, only this one narrow, but possibly
misleading, aspect related to our hobby.
>
> 73,
> Tony, N2UN
> LM 183
>
> ---
> This email is free from viruses and malware because avast! Antivirus
protection is active.
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> _______________________________________________
> 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!
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------------------------------
Message: 3
Date: Sun, 16 Mar 2014 14:27:00 -0600
From: James Duffey <jamesduffey@xxxxxxx.xxx>
To: Rick Walter <wb3csy@xxxxx.xxx>
Cc: Anthony Japha <ajapha@xxxxxxxxx.xxx>, amsat-bb
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Malaysian airliner puzzle
Message-ID: <1D0D1F2F-48CF-4FAE-BCA4-BC5703F95976@xxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
I think that the transmissions from the airplane are time tagged, even
without the data packets being transmitted. By comparing the ping time to
the time on the satellite, one can tell how far away the ping is. You can
draw a circle with that radius, taking into account fuel available on the
airplane and last heading to sort of kind of bound where the airplane is.
That is where the red circles in the NY Times article come from.
A second satellite is needed to pinpoint a more exact location, but even
that will have a relatively position error on the ground. I don?t think it
is within range of another INMARSAT. Whether or not other assets exist that
could receive the signal is a matter of speculation. - KK6MC
On Mar 16, 2014, at 2:01 PM, Rick Walter <wb3csy@xxxxx.xxx> wrote:
> Tony, since the satellite cannot tell direction of the Ping, only
distance, the arcs have the same distance from the plane making up a half
circle. You would need to sats to hear the plane, see where the two arcs
cross to determine a location.
>
> This is the same way seismic stations locate earthquakes.
>
> Rick - WB3CSY
>
> Sent from Rick's iPhone 5
> "Great spirits have always encountered violent opposition from mediocre
minds" - Albert Einstein
>
>
>
>> On Mar 16, 2014, at 12:24 PM, "Anthony Japha" <ajapha@xxxxxxxxx.xxx> wrote:
>>
>> Those so-called arcs that are said to be possible routes for the plane
look much like the outer edge of one of the Inmarsat footprints. Is there
logic behind the arcs or is it oversimplified nonsense? They are said to be
the result of the signals Inmarsat received. But then why wouldn?t it be
possible for the plane to be anywhere in the footprint?
>>
>> I?m sure many in our group have good ideas. I?m not trying to start a
discussion of the entire mystery, only this one narrow, but possibly
misleading, aspect related to our hobby.
>>
>> 73,
>> Tony, N2UN
>> LM 183
>>
>> ---
>> This email is free from viruses and malware because avast! Antivirus
protection is active.
>> http://www.avast.com
>> _______________________________________________
>> 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: 4
Date: Sun, 16 Mar 2014 14:33:53 -0600
From: Humberto Gonz?lez <xe1fze@xxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] XF1T active on SO-50
Message-ID: <COL402-EAS4272E007D8282EEC77781A49A720@xxx.xxx>
Content-Type: text/plain; charset="Windows-1252"
Just about a seconds after talk with John K8YSE/7 about XF1T iota NA-189,
Ismael started to call on SO-50, it looks like he had some trouble to hear
the sat and not to much oportunity to talk. Stay tuned and look for him.
Next passes for sure will give a nice oportunity to give it a shout.
73's
Bert / XE1HG
Enviado desde mi Windows Phone
------------------------------
Message: 5
Date: Sun, 16 Mar 2014 16:49:42 -0400
From: "Anthony Japha" <tjjapha@xxxxxxxxx.xxx>
To: "amsat-bb" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Malaysian airliner puzzle
Message-ID: <E084A947A4CC49499028F7A6AC516591@xxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Thanks Rick,
How do those sats determine distance to the source?
Tony, N2UN
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This email is free from viruses and malware because avast! Antivirus
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------------------------------
Message: 6
Date: Sun, 16 Mar 2014 22:43:44 +0100
From: Francisco Jim?nez-Mart?n S?nchez <ea1jm.fran@xxxxx.xxx>
To: Roland Zurmely <py4zbz@xxxxx.xxx>
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: [CAUTION] The Satellite ID of CelesTrack is
wrong!
Message-ID:
<CAPHC12R3hUGv7fdHCdiDd_RRHNQVtRjt1ac7aUdOznEjcj_uiw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Yes, lithuanicasat, artsat invader and uapsat are wrong as well
El 16/03/2014 21:06, "Roland Zurmely" <py4zbz@xxxxx.xxx> escribi?:
> Another error of Celestrak:
> The correct TLE for LitSat-1 are those with NORAD # 39568 (not 39570)
> The TLE for UAPSAT are actually the TLE for LitSat-1 !
>
> 73 de Roland PY4ZBZ
> _______________________________________________
> 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: Sun, 16 Mar 2014 19:09:14 -0400
From: Rick Walter <wb3csy@xxxxx.xxx>
To: Anthony Japha <tjjapha@xxxxxxxxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Malaysian airliner puzzle
Message-ID: <14EF4691-6092-4893-AD31-CD78F05F9964@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I think it is like GPS, the signal from the plane has encoded in it the time
it was sent and the satellite knows when it arrived at the sat. Using a
formula to compensate for our atmosphere and using the speed of light it
knows the distance travelled.
Rick
Sent from Rick's iPhone 5
"Great spirits have always encountered violent opposition from mediocre
minds" - Albert Einstein
> On Mar 16, 2014, at 4:49 PM, "Anthony Japha" <tjjapha@xxxxxxxxx.xxx> wrote:
>
> Thanks Rick,
> How do those sats determine distance to the source?
> Tony, N2UN
>
> ---
> This email is free from viruses and malware because avast! Antivirus
protection is active.
> http://www.avast.com
> _______________________________________________
> 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: 8
Date: Sun, 16 Mar 2014 23:20:07 +0000 (GMT)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] FCC Invites Public Comment on 10-10.5 GHz Petition
Message-ID:
<1395012007.12000.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
ARRL story at
http://www.arrl.org/news/fcc-invites-public-comment-on-petition-affecting-10-1
0-5-ghz-band
73 Trevor M5AKA
------------------------------
Message: 9
Date: Sun, 16 Mar 2014 19:33:51 -0500
From: Wyatt Dirks <wyattdirks@xxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AC0RA/m
Message-ID: <BAY179-W6180D96B197A00FC26AA44CD7D0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Good Evening
This Friday the 21st of March I am going to leave westward to activate some
of the rarer grids in ND, SD, CO, NE, and KA. I don't really have a set
schedule and plans are pretty open at this point. I will be operating on
SO50, VO52, FO29, AO73, and AO7 mode b.
If you want more info on which grids I will be in and when just reply to
this email and let me know. I can send updates on grids I will be in and
when throughout trip but won't annoy the bb with such info. Also if there
are any specific requests for grids I might be close to or going through I
can try to activate those as well. Again just send me an email.
I also believe and few of those states have been pretty quite on the birds
lately so if you need any of those states listed above send me a note and I
can try to help you out for WAS.
Hope to catch you on the birds from the road.
73
Wyatt
AC0RA
------------------------------
Message: 10
Date: Sun, 16 Mar 2014 20:38:14 -0400
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: AC0RA/m
Message-ID:
<CABzOSOrtGNMRgC760Pq=SABbjnafvLEtYs6AN_uwpNPfwUwzqA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Wyatt,
Looking forward to NE, ND, and SD especially, plus probably many of the grids.
73,
Paul, N8HM
On Sun, Mar 16, 2014 at 8:33 PM, Wyatt Dirks <wyattdirks@xxx.xxx> wrote:
> Good Evening
>
> This Friday the 21st of March I am going to leave westward to activate
some of the rarer grids in ND, SD, CO, NE, and KA. I don't really have a set
schedule and plans are pretty open at this point. I will be operating on
SO50, VO52, FO29, AO73, and AO7 mode b.
>
> If you want more info on which grids I will be in and when just reply to
this email and let me know. I can send updates on grids I will be in and
when throughout trip but won't annoy the bb with such info. Also if there
are any specific requests for grids I might be close to or going through I
can try to activate those as well. Again just send me an email.
>
> I also believe and few of those states have been pretty quite on the birds
lately so if you need any of those states listed above send me a note and I
can try to help you out for WAS.
>
> Hope to catch you on the birds from the road.
>
> 73
> Wyatt
> AC0RA
>
> _______________________________________________
> 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: Sun, 16 Mar 2014 21:58:37 -0400
From: Howie DeFelice <howied231@xxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Malaysian airliner puzzle
Message-ID: <BLU169-W82FA69F35DD10C28C1C010E77D0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Tony,
I'm not up to speed on the current Inmarsat Aero service, but they are most
likely using thee 4th generation satellite constellation which has numerous
small overlapping spotbeams. They also have larger area beams as well as a
global beam. There are several different aero services provided by Inmarsat
for different classes of planes. I haven't seen the report you mention so I
can't make any guesses how this relates to the footprints.
- Howie AB2S
------------------------------
Message: 12
Date: Sun, 16 Mar 2014 21:20:29 -0500
From: "Harvey N. Vordenbaum" <tower2@xxx.xx.xxx>
To: "'Howie DeFelice'" <howied231@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Malaysian airliner puzzle
Message-ID: <003e01cf4187$779fb760$66df2620$@xx.xxx>
Content-Type: text/plain; charset="us-ascii"
There a couple of news items on the Inmarsat web-site:
http://www.inmarsat.com/news/inmarsat-appointed-technical-adviser-flight-mh3
70/
http://www.inmarsat.com/news/inmarsat-statement-malaysia-airlines-flight-mh3
70/
hv
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Howie DeFelice
Sent: Sunday, March 16, 2014 8:59 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Malaysian airliner puzzle
Hi Tony,
I'm not up to speed on the current Inmarsat Aero service, but they are most
likely using thee 4th generation satellite constellation which has numerous
small overlapping spotbeams. They also have larger area beams as well as a
global beam. There are several different aero services provided by Inmarsat
for different classes of planes. I haven't seen the report you mention so I
can't make any guesses how this relates to the footprints.
- Howie AB2S
_______________________________________________
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: Sun, 16 Mar 2014 19:57:22 -0700 (PDT)
From: "R.T.Liddy" <k8bl@xxxxxxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Malaysian airliner puzzle
Message-ID:
<1395025042.75622.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Tony,
They would use the time differential between receipt
to measure the distance versus the location of the
satellites. The more satellites, then the more accurate
the triangulation.
73, ? Bob K8BL
________________________________
From: Anthony Japha <tjjapha@xxxxxxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Sent: Sunday, March 16, 2014 4:49 PM
Subject: [amsat-bb] Malaysian airliner puzzle
Thanks Rick,
How do those sats determine distance to the source??
Tony, N2UN?
---
This email is free from viruses and malware because avast! Antivirus
protection is active.
http://www.avast.com
_______________________________________________
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: 14
Date: Sun, 16 Mar 2014 21:58:25 -0700 (PDT)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] W1AW/7 (Arizona) on satellites, as of 0400 UTC 17
March
Message-ID:
<1395032305.64820.YahooMailBasic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
It has been fun working satellites with the W1AW/7 call over
the past few days. Especially this weekend, between the
Scottsdale AZ hamfest yesterday and getting up early this
morning to start on the satellites at 6am (1300 UTC). Add in
other passes John K8YSE worked from his Arizona station,
and I think W1AW/7 was on most passes workable from
Arizona starting very early this morning into this evening.
If I didn't need to get some more sleep tonight before going
back to work, I would have tried for one or two more passes
tonight before calling it a night.
I logged 36 QSOs as W1AW/7 today, working 12 different
passes between 1300 and 0400 UTC. As of now, I have
logged 102 satellite QSOs as W1AW/7. John K8YSE told
me yesterday afternoon how many QSOs he had logged as
W1AW/7 at that point; I forget the exact number, but it was
already over 100 at that time. With almost two days left
before the W1AW/x calls move to two other states, the
W1AW/7 Arizona effort has at least 200 satellite QSOs
in the log. Thanks to everyone who has called John and me
on so many passes over the past 5 days. I will come back
and post an update with some statistics from our logs in a
few days, once we have completed our week as W1AW/7.
For Monday, John and I will go back to what we did before
the weekend. K8YSE/7 will try to work passes during the
daytime as W1AW/7, then I will work as W1AW/7 into the
evening. I will plan on being on AO-73 at 0416 & 0552 UTC,
as this will be the last evening we will have the W1AW/7 call.
Then K8YSE/7 will be on during the daytime Tuesday as
W1AW/7 until 2359 UTC. Even if you have already worked
us, please feel free to give us a call if you hear us on a pass.
All of the W1AW/x activity may be an ARRL event, but it is nice
to see the interest in having those calls show up on the satellites
along with the HF and other bands. If your state does not have a
plan for satellite operating during its week with a W1AW/x call,
please contact the coordinator for your state in the listing at:
http://www.arrl.org/files/file/On%20the%20Air/W1AW_2014_sked.pdf
Chances are good that you will be allowed to use the W1AW/x
call for your state. If you're not careful, you may be asked (or
drafted) to coordinate satellite activity for your state's week with
the W1AW/x call. :-)
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 15
Date: Sun, 16 Mar 2014 22:04:19 +0200
From: Leon Steenkamp <ldutsteenkamp@xxxxx.xxx>
To: jkboxk@xxxxxxxx.xxxx "PE0SAT | Amateur Radio" <pe0sat@xxxxx.xx>,
Hans van de Groenendaal <hans@xxxxxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AMSAT-BB Digest, Vol 9, Issue 93
Message-ID:
<CACm3t5NGF6=g+qKQjtuHtYFO62FZZgrYdPKi-0X3dwNqwbLnGQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi,
> Date: Sun, 16 Mar 2014 12:27:28 -0500
> From: "jerry keeton" <jkboxk@xxxxxxxx.xxx>
> Just before ZACUBE-01 reaches its' apex , I hear a signal that sounds like
pactor . That is on 14.099 . Never seem to find the correct software for
decoding . Just wondering if that is zacube since I hear it on every pass ?
>
> Date: Sun, 16 Mar 2014 18:42:51 +0100
> From: PE0SAT | Amateur Radio <pe0sat@xxxxx.xx>
> I could be wrong, but as far as I know is the 20m experiment not yet
> started
> and is the 20m antenna not yet deployed.
>
> Date: Sun, 16 Mar 2014 19:53:54 +0200
> From: "Hans" <hans@xxxxxxx.xx.xx>
> I have the same info. I will check tomorrow what the status is
> Hans ZS6AKV
>
As Hans and Jan said we have not yet switched on the beacon
transmitter or deployed the antenna. The initial beacon transmitted
will be a short morse encoded text message, at eight or ten words per
minute if I recall correctly. There is also a pseudorandom number
message but that will likely only be used later on. We will definitely
publicise it when we do start transmitting. In the mean time you can
find more info at http://www.cput.ac.za/fsati and also on
http://twitter.com/fsatispace .
--
Regards,
Leon Steenkamp (ZS1HD)
French South African Institute of Technology
Cape Peninsula University of Technology
Cape Town, South Africa.
Ldutsteenkamp@xxxxx.xxx
http://www.cput.ac.za/fsati
------------------------------
_______________________________________________
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 94
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