Date   
Re: Wavelet-compressed HRV data

Guy Martin <agm@...>
 

Hi Ian,

I'm saving them as jpg with a setting of 100. Saving does now take longer but the images are now excellent. I'm using an Athlon 1200 with 512Gb and the processor spends time at 100% so an upgrade is planned in the future as it is my main working machine. I'm not concerned about image size as I only archive interesting features and will copy them to CD.

Cheers, Guy

----- Original Message -----
From: Ian S Deans
To: MSG-1@...
Sent: Sunday, November 02, 2003 9:10 PM
Subject: Re: [MSG-1] Wavelet-compressed HRV data


Guy,

Are you saving the HRV images as png or jpg. If jpg what setting are you
using. I have increased the jpg setting to 90, but I am still getting
artefacts, although slight improvement. Most noticeable as you say as the
terminator approaches. I am running everything on one Athlon 1200
extremely successfully, but am endeavouring to keep HRV image size
to a reasonable level without too much artefacts/pixellation.


Ian.

----- Original Message -----
From: "Guy Martin" <agm@...>
To: <MSG-1@...>
Sent: Sunday, November 02, 2003 10:37 AM
Subject: Re: [MSG-1] Wavelet-compressed HRV data


> It has certainly improved picture quality. Animating the terminator now
shows a smooth transition to black with no artifacts or pixellation. The
system appears to cope just as well.
>



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Re: Wavelet-compressed HRV data

David J Taylor GM8ARV ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ ๐Ÿ‡ช๐Ÿ‡บ
 

--- In MSG-1@..., "Ian S Deans" <ian@i...> wrote:
Guy,

Are you saving the HRV images as png or jpg. If jpg what setting
are you using. I have increased the jpg setting to 90, but I am
still getting artefacts, although slight improvement. Most
noticeable as you say as the terminator approaches. I am running
everything on one Athlon 1200 extremely successfully, but am
endeavouring to keep HRV image size to a reasonable level without
too much artefacts/pixellation.


Ian.
That's a good point, Ian. I have increased the default JPEG save
level from 82 to 86, but I believe that Arne van Belle wants to
update some tests on the save level setting. It will be interesting
to see his new results. To convert the 10-bit data to an 8-bit
display format compromises are required, although I believe that my
default settings of min:51, max:1023 and gamma:140 (i.e. 1.40) are
close to the optimum. Of course, you can play with the settings to
suit your needs. The GMS (GOES-9) images are set (at source) to a
gamma of 2, and look rather washed out to me....

For my own comparison tests, I saved in PNG and not JPEG format.

Cheers,
David

Re: Help for MSG1 software configuration !!!

Guy Martin <agm@...>
 

We have had problems at work with McAfee, machines slowing down mainly, which could affect tellique I guess, we now use Sophos anti virus with no problems, even the auto update works.

Cheers, Guy

----- Original Message -----
From: f5hcc
To: MSG-1@...
Sent: Sunday, November 02, 2003 4:40 PM
Subject: [MSG-1] Re: Help for MSG1 software configuration !!!


Hello David.
I think it is a great idea !
In fact, to solve my problems, I took a blank 20 GB disk, I
installed only Win XP, Technisat PCI-card driver, Tellique software
and of course MSG Data Manager, and... it works fine !
I think my problems came from MacAfee software (Viruscan and
firewall),
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Re: Wavelet-compressed HRV data

Ian S Deans <ian@...>
 

Guy,

Are you saving the HRV images as png or jpg. If jpg what setting are you
using. I have increased the jpg setting to 90, but I am still getting
artefacts, although slight improvement. Most noticeable as you say as the
terminator approaches. I am running everything on one Athlon 1200
extremely successfully, but am endeavouring to keep HRV image size
to a reasonable level without too much artefacts/pixellation.


Ian.

----- Original Message -----
From: "Guy Martin" <agm@...>
To: <MSG-1@...>
Sent: Sunday, November 02, 2003 10:37 AM
Subject: Re: [MSG-1] Wavelet-compressed HRV data


It has certainly improved picture quality. Animating the terminator now
shows a smooth transition to black with no artifacts or pixellation. The
system appears to cope just as well.

HRV compression changes - have you found any problems?

David J Taylor GM8ARV ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ ๐Ÿ‡ช๐Ÿ‡บ
 

Folks,

As you will have seen, EUMETSAT have continued with the wavelet-
compressed HRV (channel 12) data over the weekend, and will be
running with it tomorrow. I was wondering if anyone had seen any
problems as a result - if you have been looking at the raw segment
files you will have seen that they are bigger, and they may take
longer to process.

So if you have seen any problems which started with the 13:00 repeat
cycle on Wednesday October 29th, and are still continuing, perhaps
you would be good enough to report any details here.

Thanks,
David

Re: Help for MSG1 software configuration !!!

f5hcc <f5hcc@...>
 

Hello David.
I think it is a great idea !
In fact, to solve my problems, I took a blank 20 GB disk, I
installed only Win XP, Technisat PCI-card driver, Tellique software
and of course MSG Data Manager, and... it works fine !
I think my problems came from MacAfee software (Viruscan and
firewall), because when the PC was powered-on, MSG receiving was OK
as long as MacAfee softwares where not loaded and running (it tooks
around 1 minute after Win XP is running and before Viruscan is
loaded, and during that short time, receiving is OK).
So, now, I have a disk labelled "METEOSAT" when I want to receive
MSG-1 and an other one labelled "XP" for regular use of the machine
(I use drawers for he disks).
On a PIII-1GHz, I have Tellique software AND MSG-DM both running
without problems.
Cheers.
Fabrice, F5HCC.

Re: Missing Segments

Peter Benney <tugboat@...>
 

Just to let you knwo we are thinking about you, for yesterday (Nov
01) I got no missing segments at all. If you (or anyone else) got
any missing segments, then the cause is something local in the
installation or path to the satellite.
David,

I had missing segments yesterday between 0000 and 1200 but none missing between 1215 and Midnight. Today I have missing segments 0300, 0330, 0345 and 0700 cycles. TheTellique software showed a red icon at 0947 with bad segment loss on the 0930 cycle and 0945 cycle missing after a reboot. Present weather Wind SSE 15 kts with heavy rain (8.0 mm/hr)

You might also want to check
the Tellique log files around the times of the missing segments in
case that shows up anything.
I note a series of "Lost Mesages" and " file ended/interrupted"

No changes have been made to the installation prior to the onset of the missing segments.
It will be interesting to see if this afternoons reception is good. I will soon be able to use my 1m patio mounted dish now the trees had shed their leaves. The 88cm motorised dish is pole mounted just above the roof gutter and close to the attached property. About 400m west of the dish is a water tower bristling with microwave links, a GSM phone cell and PSB UHF aerials. The dish is screened from this by the roof line. Satellite TV reception using this dish is very good even channels on the Sirius Nordic beam.

http://www.polarorbiter.co.uk/Graphics/Pict0019.JPG

Peter

Re: Wavelet-compressed HRV data

Guy Martin <agm@...>
 

It has certainly improved picture quality. Animating the terminator now shows a smooth transition to black with no artifacts or pixellation. The system appears to cope just as well.

Regards, Guy

----- Original Message -----
From: David Taylor
To: MSG-1@...
Sent: Sunday, November 02, 2003 9:05 AM
Subject: [MSG-1] Wavelet-compressed HRV data


I see we are still on wavelet-compressed HRV data. I wonder if this
will be a permanent change?
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Re: Eumet Cas Key

David J Taylor GM8ARV ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ ๐Ÿ‡ช๐Ÿ‡บ
 

--- In MSG-1@..., "pa3aod" <harms@a...> wrote:
The Trail schedule tells me that in December eumetsat start with
the
Eumet Cas Key Unit (EKU) and you need such device.
But how can i get that USB-Key?
Receiving MSG-1 now perfect witha trail copy of David Taylors
DataManager.

Bert
Bert,

I believe that there is just one day in December and one in February
when the access control will be enabled, so that an eToken will be
required. I am sure that Eumetsat will contact all the trial
participants well in advance about purchasing an eToken before the
full access control starts. That is currently scheduled for March
next year:

<http://www.eumetsat.de/en/dps/dissemination/met-
8_dissemination_trial.html>

Sorry for any split in the URL

Cheers,
David

Eumet Cas Key

pa3aod <harms@...>
 

The Trail schedule tells me that in December eumetsat start with the
Eumet Cas Key Unit (EKU) and you need such device.
But how can i get that USB-Key?
Receiving MSG-1 now perfect witha trail copy of David Taylors
DataManager.

Bert

Wavelet-compressed HRV data

David J Taylor GM8ARV ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ ๐Ÿ‡ช๐Ÿ‡บ
 

I see we are still on wavelet-compressed HRV data. I wonder if this
will be a permanent change? The larger file size shows up well on
the bandwidth graphs - look at the increase from last Wednesday
lunchtime! I haven't seen any ill effects here such as an increase
in missing segments, file sequence errors, or the PC simply failing
to cope with the greater data rate.

http://www.david-taylor.myby.co.uk/mrtg/hermes_dvb.html

I wonder if this would have been possible with direct dissemination,
rather than the greater data rates used on the DVB service?

Cheers,
David

Re: Missing Segments

David J Taylor GM8ARV ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ ๐Ÿ‡ช๐Ÿ‡บ
 

--- In MSG-1@..., "Peter Benney" <tugboat@g...> wrote:
After a reboot at 1339 yesterday cycles from 1345 to 2345 were
received complete.
But today I have the following missing segments...........
[]
Peter
Just to let you knwo we are thinking about you, for yesterday (Nov
01) I got no missing segments at all. If you (or anyone else) got
any missing segments, then the cause is something local in the
installation or path to the satellite. You might also want to check
the Tellique log files around the times of the missing segments in
case that shows up anything.

Cheers,
David

Re: Latest beta

David J Taylor GM8ARV ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ ๐Ÿ‡ช๐Ÿ‡บ
 

--- In MSG-1@..., James Brown <satellite@m...> wrote:
Just to say thanks David for the latest beta - the country
outlines work fine here on the MPEF files - not tried other country
outlines.

Interesting to note how much further north they can do CTH now. My
memory of it was stopping just south of the UK.


I hadn't spotted that, James! You are right. Better algorithms, I
expect.

One peculiarity is that the scaling for the CLAI and CTH images is
about 1% different (I hard code this from the image segment data).
I wonder why? If outlines start to become incorrect, I will have to
check this again......

Glad the rest is working....

Cheers,
David

Latest beta

James Brown
 

Just to say thanks David for the latest beta - the country outlines work fine here on the MPEF files - not tried other country outlines.

Interesting to note how much further north they can do CTH now. My memory of it was stopping just south of the UK.

Cheers,
James

--
James Brown

Re: outlines

David J Taylor GM8ARV ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ ๐Ÿ‡ช๐Ÿ‡บ
 

The countries are outlined fine on HRIT images (using MSG) but
only partially on FSD and not at all on CTH.

CTH and CLAI outlines will be added in the next beta. Thanks for
reminding me.

The GOES-E image has S America outlined and the Great lakes and
even Lake Okeechobee in Florida but the coastline of N America is
missing as are state boundaries. Do I have an out of date
countries.dat or is this a feature.

As has been discussed before, either choose a different file than
Countries.dat or do not use the Inverse setting.

BTW: this would have been more appropriate for the SatSignal group.

Cheers,
David

outlines

Guy Martin <agm@...>
 

Hi All,

The countries are outlined fine on HRIT images (using MSG) but only partially on FSD and not at all on CTH. The GOES-E image has S America outlined and the Great lakes and even Lake Okeechobee in Florida but the coastline of N America is missing as are state boundaries. Do I have an out of date countries.dat or is this a feature.

Regards, Guy

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Re: Missing Segments

Peter Benney <tugboat@...>
 

After a reboot at 1339 yesterday cycles from 1345 to 2345 were received complete.
But today I have the following missing segments...........
Date: 2003-10-31
Cycle: 0000 - msg-ch11, seg: 4
Cycle: 0445 - msg-ch12, seg: 17 20
Cycle: 0630 - msg-ch03, seg: 4
Cycle: 0645 - msg-ch12, seg: 8
Cycle: 0945 - msg-ch01, seg: 4 - lrit-ch01, seg: 4 - lrit-ch03, seg: 4

I have V2.3.0a of the Tellique software, perhaps an upgrade to V2.3.1 would be the answer.
I will email Eumetsat and request for an upgrade.

Peter

WG: Re: Channel 5

Peter Scheidgen
 

Hi Nicola,

currently, IR and WV channel are being calibrated. You will find information
provided by Eumetsat at:

http://www.eumetsat.de/en/index.html?area=left4b.html&body=/en/area4/msg/dat
aservices/brightness_to_temperature.html&a=414.2&b=2&c=414&d=410&e=0

regards

Peter

-----Ursprรผngliche Nachricht-----
Von: pergola [mailto:pergola@...]
Gesendet am: Freitag, 31. Oktober 2003 10:06
An: MSG-1@...
Betreff: Re: [MSG-1] Re: Channel 5

Hi folks,
does anyone know if SEVIRI data calibration is already operational ?
I mean, did EUMETSAT provide the operational calibration coefficient for all
the 12 SEVIRI bands (VIS, WV, IR)? If yes, could you please indicate me
where can I find such information?
Thanks in advance

Sincerely,
Nicola

Nicola Pergola

----- Original Message -----
From: Douglas Deans
To: MSG-1
Sent: Thursday, October 30, 2003 8:13 PM
Subject: Re: [MSG-1] Re: Channel 5



----- Original Message -----
From: "Roger Mawhinney" <roger@...>
To: <MSG-1@...>
Sent: Thursday, October 30, 2003 6:46 PM
Subject: RE: [MSG-1] Re: Channel 5


> Thank you David
> If your meteorology skills were as good as your programming, then we
> probably wouldn't need the Met Office :-)
>
> I used to be a RIG member and I do have a RX-2 but I felt that the RIG
> subscription was no longer economically beneficial to me. I'm pursuing a
> strictly amateur hobby on a limited budget and trying to learn as I go.
> Whilst I am not able to contribute to the technical discussions on MSG,
etc,
> any advice that increases my personal knowledge in satellite technology,
> remote imaging, space, meteorology, auroras, etc is very welcome.
> Regards, Roger
>
> PS: Anyone see the aurora last night - clearly visible in N. Ireland.

Yes, excellent here in Dunblane. Had to wait for cloud clearing about
22.00 clock but knew it was going to thanks to MSG and GSS4 (keeps mail
on
topic !)
Last night's X10 flare's CME struck us about 17.00 and started another
'severe' geomagnetic storm. Magnetic field has turned south so looks
like
more auroras tonight. All 'data' sites are virtually unusable at the
moment due to traffic so difficult to get up to date info.
Fingers crossed for clear skies.

Regards
Douglas.



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Re: Channel 5

David J Taylor GM8ARV ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ ๐Ÿ‡ช๐Ÿ‡บ
 

--- In MSG-1@..., "pergola" <pergola@i...> wrote:
Hi folks,
does anyone know if SEVIRI data calibration is already
operational ?

Yes, it is.

I mean, did EUMETSAT provide the operational calibration
coefficient for all the 12 SEVIRI bands (VIS, WV, IR)? If yes, could
you please indicate me where can I find such information?
Thanks in advance

Sincerely,
Nicola
The count to radiance value conversion coefficients are in the
prolog header data. The radiance to temperature conversion is at:

/en/area4/msg/dataservices/brightness_to_temperature.html

on Eumetsat's Web site. My MSG Data Manager does all the
calculations for you, if you wish, and outputs temperature
calibrated images.

Cheers,
David

Re: Channel 5

pergola
 

Hi folks,
does anyone know if SEVIRI data calibration is already operational ?
I mean, did EUMETSAT provide the operational calibration coefficient for all the 12 SEVIRI bands (VIS, WV, IR)? If yes, could you please indicate me where can I find such information?
Thanks in advance

Sincerely,
Nicola

Nicola Pergola

----- Original Message -----
From: Douglas Deans
To: MSG-1
Sent: Thursday, October 30, 2003 8:13 PM
Subject: Re: [MSG-1] Re: Channel 5



----- Original Message -----
From: "Roger Mawhinney" <roger@...>
To: <MSG-1@...>
Sent: Thursday, October 30, 2003 6:46 PM
Subject: RE: [MSG-1] Re: Channel 5


> Thank you David
> If your meteorology skills were as good as your programming, then we
> probably wouldn't need the Met Office :-)
>
> I used to be a RIG member and I do have a RX-2 but I felt that the RIG
> subscription was no longer economically beneficial to me. I'm pursuing a
> strictly amateur hobby on a limited budget and trying to learn as I go.
> Whilst I am not able to contribute to the technical discussions on MSG,
etc,
> any advice that increases my personal knowledge in satellite technology,
> remote imaging, space, meteorology, auroras, etc is very welcome.
> Regards, Roger
>
> PS: Anyone see the aurora last night - clearly visible in N. Ireland.

Yes, excellent here in Dunblane. Had to wait for cloud clearing about
22.00 clock but knew it was going to thanks to MSG and GSS4 (keeps mail on
topic !)
Last night's X10 flare's CME struck us about 17.00 and started another
'severe' geomagnetic storm. Magnetic field has turned south so looks like
more auroras tonight. All 'data' sites are virtually unusable at the
moment due to traffic so difficult to get up to date info.
Fingers crossed for clear skies.

Regards
Douglas.



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