Date   

Re: Metop Fast Dump

Ian Deans
 

Hello James.

There are now 3 orbits affected. Reading from AVHRR Manager they are 9.43 / 11.24 and 13.04. The live passes taken by the EARS stations south of the pole are OK, it is the fast dump that has a problem and these passes are mainly over the north pole at the moment.

Regards
Ian.

--------------------------------------------------
From: "James Brown" <satellite@...>
Sent: Wednesday, July 28, 2010 3:17 PM
To: <MSG-1@...>
Subject: Re: [MSG-1] Metop Fast Dump

In message <D61547CBAC2C49839C1AEB5D2FED1D85@IanPC>, Ian Deans
<iandeans142@...> writes
There appears to be a problem with the last two Metop AVHRR Fast Dump
passes.

Both are showing black on the AVHRR Manager thumb and are not processing (
the live part further south is OK ).

Another is due fairly soon so will monitor.

Regards
Ian.
Ian - could you specify the orbit?

James
--
James Brown


Re: Metop Fast Dump

James Brown
 

In message <D61547CBAC2C49839C1AEB5D2FED1D85@IanPC>, Ian Deans <iandeans142@...> writes
There appears to be a problem with the last two Metop AVHRR Fast Dump
passes.

Both are showing black on the AVHRR Manager thumb and are not processing (
the live part further south is OK ).

Another is due fairly soon so will monitor.

Regards
Ian.
I notice in the AVHRR manager event log - there is an intermingling of METOP and NOAA17 or 19 files under one pass name - could this be related to the issue?

Cheers

(Please ignore request for orbit detail Ian, have seen it now)

James
--
James Brown


Re: Metop Fast Dump

James Brown
 

In message <D61547CBAC2C49839C1AEB5D2FED1D85@IanPC>, Ian Deans <iandeans142@...> writes
There appears to be a problem with the last two Metop AVHRR Fast Dump
passes.

Both are showing black on the AVHRR Manager thumb and are not processing (
the live part further south is OK ).

Another is due fairly soon so will monitor.

Regards
Ian.
Ian - could you specify the orbit?

James
--
James Brown


Re: [AVHRR] Metop Fast Dump

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

There appears to be a problem with the last two Metop AVHRR Fast Dump
passes.

Both are showing black on the AVHRR Manager thumb and are not processing (
the live part further south is OK ).

Another is due fairly soon so will monitor.

Regards
Ian.
Same here - am investigating.

David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor@...


Metop Fast Dump

Ian Deans
 

There appears to be a problem with the last two Metop AVHRR Fast Dump passes.

Both are showing black on the AVHRR Manager thumb and are not processing ( the live part further south is OK ).

Another is due fairly soon so will monitor.

Regards
Ian.


Re: Metop Fast Dump

geojohnt@...
 

In a message dated 28/07/2010 15:28:52 GMT Daylight Time,
iandeans142@... writes:

There are now 3 orbits affected. Reading from AVHRR Manager they are 9.43
/
11.24 and 13.04. The live passes taken by the EARS stations south of the
pole are OK, it is the fast dump that has a problem and these passes are
mainly over the north pole at the moment.


Ian, James and David,

"Fast dump"?

What data is this - I'm confused.
Not the usual orbit by orbit 'ordinary Metop dump to Svalbard?

I have no problems (it seems) with any of the above orbits with imaging
near the NP.

Regards,
John.


Re: linux dvb multicast problems

LaurentD
 

Thank you very much Titty for these links !.

Ciao

Laurent

--- In MSG-1@..., "tittyb80" <tittyb80@...> wrote:

Hi Laurent,

I used the guide http://bruxy.regnet.cz/web/meteosat/EN/meteosat-station-in-gnu-linux/ (it is useful and fit also for ubuntu) and the http://www.eumetsat.int/Home/Main/DataAccess/EUMETCast/ReceptionStationSet-up/SP_201003171032773?l=en
if there are some problem with the setup!

Good Luck!

Titty (Italy)



--- In MSG-1@..., "wsi32" <l.deblangy@> wrote:

Good afternoon Tittyb80,

I would like to setup my EUMETCast station with Linux ( Ubuntu ).
Do you know if I could find on the internet " how to proceed ". with advices...

Thank you very much for your response,

Laurent DEBLANGY
Juilles / France

--- In MSG-1@..., "tittyb80" <tittyb80@> wrote:

Hi,

have you check if in host_key_4 in Tellicast web interface in Licence section there is ****-****-****-**** ? Because if there is nothing you have to correct this problem!

I had this problem for ubuntu installation and I resolved it with the suggestion in this page

http://www.eumetsat.int/Home/Main/DataAccess/EUMETCast/ReceptionStationSet-up/SP_201003171032773?l=en

ref. (C3.1.1.2) 2.6 Kernels

Titty.

--- In MSG-1@..., "ms_austria" <ms_austria@> wrote:

Hello everyone!

I hope perhaps someone could help me.
I am trying to setup my linux system for proper Eumetcast reception.

I have followed the instructions from

http://bruxy.regnet.cz/webnet/meteosat/EN/meteosat-station-in-gnu-linux

I am able to establish all dvb network devices, start smcroute, etc. everything looks good, except that there are 0 packets flowing through the interfaces.

I have managed to get it working once (don't ask me what I did, but somehow it worked), unforuntately the wind blew away my dish (the mounting was not yet permanent), and in between I shut down the system.

Somewhere I am missing something, but I have absoloutely no clue. Best regards and thanks for your assistance in advance,

Martin


Re: problems with segment 5/6 on even hours

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Hello there,

I am receiving and processing MSG channels 1,2,9,10 using MSG datamanager on the full hours, and also receiving some geostationary FSD. Since about the end of June I missed quite some segments (segment 5 and/or 6) MSG HRIT files of 6:00, 10:00, 12:00, 14:00 and 18:00h.

Anybody any idea what could be the problem?

Kind regards,
Steven
It sounds odd, Steven. Are you getting the data over EUMETCast? The only thing I can think of is possible information overload in your TelliCast system, perhaps caused by leaving the wildcard entry [*] in your recv-channels.ini file, or perhaps something running on your PC around the times when those segments are being received (approx 06:10 UTC etc.).

It's unusual not to receive data every 15 minutes.

Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor@...


problems with segment 5/6 on even hours

stevenfoppes
 

Hello there,

I am receiving and processing MSG channels 1,2,9,10 using MSG datamanager on the full hours, and also receiving some geostationary FSD. Since about the end of June I missed quite some segments (segment 5 and/or 6) MSG HRIT files of 6:00, 10:00, 12:00, 14:00 and 18:00h.

Anybody any idea what could be the problem?

Kind regards,
Steven


Re: linux dvb multicast problems

tittyb80
 

Hi Laurent,

I used the guide http://bruxy.regnet.cz/web/meteosat/EN/meteosat-station-in-gnu-linux/ (it is useful and fit also for ubuntu) and the http://www.eumetsat.int/Home/Main/DataAccess/EUMETCast/ReceptionStationSet-up/SP_201003171032773?l=en
if there are some problem with the setup!

Good Luck!

Titty (Italy)

--- In MSG-1@..., "wsi32" <l.deblangy@...> wrote:

Good afternoon Tittyb80,

I would like to setup my EUMETCast station with Linux ( Ubuntu ).
Do you know if I could find on the internet " how to proceed ". with advices...

Thank you very much for your response,

Laurent DEBLANGY
Juilles / France

--- In MSG-1@..., "tittyb80" <tittyb80@> wrote:

Hi,

have you check if in host_key_4 in Tellicast web interface in Licence section there is ****-****-****-**** ? Because if there is nothing you have to correct this problem!

I had this problem for ubuntu installation and I resolved it with the suggestion in this page

http://www.eumetsat.int/Home/Main/DataAccess/EUMETCast/ReceptionStationSet-up/SP_201003171032773?l=en

ref. (C3.1.1.2) 2.6 Kernels

Titty.

--- In MSG-1@..., "ms_austria" <ms_austria@> wrote:

Hello everyone!

I hope perhaps someone could help me.
I am trying to setup my linux system for proper Eumetcast reception.

I have followed the instructions from

http://bruxy.regnet.cz/webnet/meteosat/EN/meteosat-station-in-gnu-linux

I am able to establish all dvb network devices, start smcroute, etc. everything looks good, except that there are 0 packets flowing through the interfaces.

I have managed to get it working once (don't ask me what I did, but somehow it worked), unforuntately the wind blew away my dish (the mounting was not yet permanent), and in between I shut down the system.

Somewhere I am missing something, but I have absoloutely no clue. Best regards and thanks for your assistance in advance,

Martin


Re: linux dvb multicast problems

Luca Bertagnolio
 

Apologies for the email double. Clearly a Yahoo Groups
30 hours delay.

No wonder Yahoo is so behind compared to Google these
days... quality is also shown by things like these, and
the many more issues that have been plaguing the Yahoo
Groups over the years.

--Luca


+Re:linux dvb multicast problems

Luca Bertagnolio
 

Hallo Martin,

let me try to reply again, as the first email did not seem to have make
it on the Yahoo Group.

I was one of the early testers of EUMETCast on Linux, and back in 2005
after an upgrade I remember running into a very similar, if not identical,
issue to the one you have.

It turns out that Reverse-Path filtering causes the multicast
issue. No wonder, as the DVB-S link is purely unidirectional!

The parameter to check is:

cat /proc/sys/net/ipv4/conf/all/rp_filter

which, in my case, was set to 1. It should be set to 0 by
performing, as root, the command:

echo "0" > /proc/sys/net/ipv4/conf/all/rp_filter

and all of a sudden the multicast application will start to work again!

Now, any change like the one above will only affect the running kernel,
so I would suggest that you might check whether your distribution
includes the /etc/sysctl.conf file and perform the change there, as
that file is read upon bootstrap, so you will not need to execute
the above command any longer.

Let me know if this solves your problem.

Ciao, Luca
Milano, Italy


Re: linux dvb multicast problems

LaurentD
 

Good afternoon Tittyb80,

I would like to setup my EUMETCast station with Linux ( Ubuntu ).
Do you know if I could find on the internet " how to proceed ". with advices...

Thank you very much for your response,

Laurent DEBLANGY
Juilles / France

--- In MSG-1@..., "tittyb80" <tittyb80@...> wrote:

Hi,

have you check if in host_key_4 in Tellicast web interface in Licence section there is ****-****-****-**** ? Because if there is nothing you have to correct this problem!

I had this problem for ubuntu installation and I resolved it with the suggestion in this page

http://www.eumetsat.int/Home/Main/DataAccess/EUMETCast/ReceptionStationSet-up/SP_201003171032773?l=en

ref. (C3.1.1.2) 2.6 Kernels

Titty.

--- In MSG-1@..., "ms_austria" <ms_austria@> wrote:

Hello everyone!

I hope perhaps someone could help me.
I am trying to setup my linux system for proper Eumetcast reception.

I have followed the instructions from

http://bruxy.regnet.cz/webnet/meteosat/EN/meteosat-station-in-gnu-linux

I am able to establish all dvb network devices, start smcroute, etc. everything looks good, except that there are 0 packets flowing through the interfaces.

I have managed to get it working once (don't ask me what I did, but somehow it worked), unforuntately the wind blew away my dish (the mounting was not yet permanent), and in between I shut down the system.

Somewhere I am missing something, but I have absoloutely no clue. Best regards and thanks for your assistance in advance,

Martin


Re: linux dvb multicast problems

Luca Bertagnolio
 

Hallo Martin,

maybe you're running into the same issue that I resolved
back in 2005.

It turns out that reverse-path filtering in the kernel
causes the multicast issue. No wonder, as the DVB-S link
is purely unidirectional!

The parameter to check is:

cat /proc/sys/net/ipv4/conf/all/rp_filter

which, in my case, was set to 1. It should be set to 0 by
doing:

echo "0" > /proc/sys/net/ipv4/conf/all/rp_filter

and all of a sudden the multicast application came back to
life. :-)

I should also add that changing the rp_filter parameter like
shown above is a temporary fix, as the kernel variable will
be then reset to the default of 1 on the next reboot.

On most Linux distributions there is a /etc/sysctl.conf file
that you can edit so that the parameters will be enforced
upon bootstrap.

Let me know if this solves your issue.

Ciao, Luca
Milano, Italy


Re: linux dvb multicast problems

ms_austria
 

Hi !

The EKU key / host_key_4 gets decoded properly.
I think I have some sort of network / hw setup problem.

Tellicast client starts properly but does not connect to the announcement channel.
Also if I check the dvb0_x interfaces, no data flow.

So will continue to search.

Martin

--- In MSG-1@..., "tittyb80" <tittyb80@...> wrote:

Hi,

have you check if in host_key_4 in Tellicast web interface in Licence section there is ****-****-****-**** ? Because if there is nothing you have to correct this problem!

I had this problem for ubuntu installation and I resolved it with the suggestion in this page

http://www.eumetsat.int/Home/Main/DataAccess/EUMETCast/ReceptionStationSet-up/SP_201003171032773?l=en

ref. (C3.1.1.2) 2.6 Kernels

Titty.

--- In MSG-1@..., "ms_austria" <ms_austria@> wrote:

Hello everyone!

I hope perhaps someone could help me.
I am trying to setup my linux system for proper Eumetcast reception.

I have followed the instructions from

http://bruxy.regnet.cz/webnet/meteosat/EN/meteosat-station-in-gnu-linux

I am able to establish all dvb network devices, start smcroute, etc. everything looks good, except that there are 0 packets flowing through the interfaces.

I have managed to get it working once (don't ask me what I did, but somehow it worked), unforuntately the wind blew away my dish (the mounting was not yet permanent), and in between I shut down the system.

Somewhere I am missing something, but I have absoloutely no clue. Best regards and thanks for your assistance in advance,

Martin


Re: HRV Channel Anomaly RSS

James Brown
 

In message <65EF4AECEAEA4C0CB39141F17B30F23D@IanPC>, Ian Deans <iandeans142@...> writes
It looks like from 8.15 UTC the HRV Channel 12 coverage on RSS has been
moved seriously east presumably by mistake and UK and Europe have largely
disappeared !!

Regards
Ian.
Yes indeed Ian,

I wasn't expecting any issues until the 27th scheduled maintenance. Have switched to non RSS temporarily.

Thanks for the info. As I had set animator window just for the UK it looked like a bigger outage until your e-mail came in,

Cheers
James
--
James Brown


HRV Channel Anomaly RSS

Ian Deans
 

It looks like from 8.15 UTC the HRV Channel 12 coverage on RSS has been moved seriously east presumably by mistake and UK and Europe have largely disappeared !!

Regards
Ian.


Re: linux dvb multicast problems

tittyb80
 

Hi,

have you check if in host_key_4 in Tellicast web interface in Licence section there is ****-****-****-**** ? Because if there is nothing you have to correct this problem!

I had this problem for ubuntu installation and I resolved it with the suggestion in this page

http://www.eumetsat.int/Home/Main/DataAccess/EUMETCast/ReceptionStationSet-up/SP_201003171032773?l=en

ref. (C3.1.1.2) 2.6 Kernels

Titty.

--- In MSG-1@..., "ms_austria" <ms_austria@...> wrote:

Hello everyone!

I hope perhaps someone could help me.
I am trying to setup my linux system for proper Eumetcast reception.

I have followed the instructions from

http://bruxy.regnet.cz/webnet/meteosat/EN/meteosat-station-in-gnu-linux

I am able to establish all dvb network devices, start smcroute, etc. everything looks good, except that there are 0 packets flowing through the interfaces.

I have managed to get it working once (don't ask me what I did, but somehow it worked), unforuntately the wind blew away my dish (the mounting was not yet permanent), and in between I shut down the system.

Somewhere I am missing something, but I have absoloutely no clue. Best regards and thanks for your assistance in advance,

Martin


linux dvb multicast problems

ms_austria
 

Hello everyone!

I hope perhaps someone could help me.
I am trying to setup my linux system for proper Eumetcast reception.

I have followed the instructions from

http://bruxy.regnet.cz/webnet/meteosat/EN/meteosat-station-in-gnu-linux

I am able to establish all dvb network devices, start smcroute, etc. everything looks good, except that there are 0 packets flowing through the interfaces.

I have managed to get it working once (don't ask me what I did, but somehow it worked), unforuntately the wind blew away my dish (the mounting was not yet permanent), and in between I shut down the system.

Somewhere I am missing something, but I have absoloutely no clue. Best regards and thanks for your assistance in advance,

Martin


SatSignal software updates

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Folks, there have been updates to a number of my popular programs recently. Mostly they are consolidations of features requested by various folk, and program robustness enhancements, but there are some significant functionality enhancements as well. Very briefly:

ATOVS Reader - adds northern region for EUMETSAT Fast Dump Extraction Service (FDES) Metop data.

AVHRR Manager - robustness enhancements

DWDSAT HRPT Viewer - accepts already decompressed files

GRIB Viewer - improved presentation of divergence data

Metop Manager - support Polar Wind data, robustness improvements

MSG Animator - MTSAT2 support, added LUTs

MSG Data Manager - update for MTSAT2 data, &#92;received&#92; on RAMdisk function

ShowMan (disk usage pie chart) - improved appearance under Windows-7

See:
http://www.satsignal.eu/software/updates.html


There is also a version of the BUFR Viewer in beta displaying the new Polar Wind data.
http://www.satsignal.eu/software/beta.htm

All the updates are free to registered users of the current version. Remember to close /all/ my programs before running the MSG Data Manager update. Please direct any queries to the SatSignal yahoo group:

http://tech.groups.yahoo.com/group/SatSignal/

Thanks,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor@...