Date   

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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Re: Channel 5

Douglas Deans <douglas@...>
 

----- 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.


Re: Channel 5

Roger Mawhinney <roger@...>
 

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.

|

|-----Original Message-----
|From: David Taylor [mailto:david-taylor@...]
|Sent: 30 October 2003 18:31
|To: MSG-1@...
|
|--- In MSG-1@..., "Roger Mawhinney" <roger@m...> wrote:
|> David,
|> Not all of us subscribe to RIG and whilst your response may well
|be that I should, fair enough, but your response didn't answer
|my question.
|> Thanks anyway
|> Roger
|
|Roger, sorry, but I am not a meteorologist, and I did think
|that you would have the RIG Journals to hand. Indeed, it _is_
|worth joining RIG just for the Journal (or to buy an RX-2),
|but the current access to MSG-1 data by amateurs has been made
|possible by negotiations by RIG Officers, so they deserve your
|support as well!
|
|A quick search on Google gave:
|
|http://ga-mac.uncc.edu/faculty/marshall/Andrew's%20AVHRR/pg6
|
|http://www.wrh.noaa.gov/Boise/satellite/info/basic_satellite_imagery_
|tutorial.htm
|
|http://www.impactweather.com/demo2/sattutor.html
|
|http://www.allmetsat.com/en/interpretation.html
|
|http://www.niwa.co.nz/services/sat/gms
|
|http://www.comet.ucar.edu/class/satmet/common/html/website_index/kidd
|er/wv_3.html
|
|Beware the wrapped URLs.
|
|Cheers,
|David
|
|
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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@..., "Roger Mawhinney" <roger@m...> wrote:
David,
Not all of us subscribe to RIG and whilst your response may well
be that I should, fair enough, but your response didn't answer my
question.
Thanks anyway
Roger
Roger, sorry, but I am not a meteorologist, and I did think that you
would have the RIG Journals to hand. Indeed, it _is_ worth joining
RIG just for the Journal (or to buy an RX-2), but the current access
to MSG-1 data by amateurs has been made possible by negotiations by
RIG Officers, so they deserve your support as well!

A quick search on Google gave:

http://ga-mac.uncc.edu/faculty/marshall/Andrew's%20AVHRR/pg6

http://www.wrh.noaa.gov/Boise/satellite/info/basic_satellite_imagery_
tutorial.htm

http://www.impactweather.com/demo2/sattutor.html

http://www.allmetsat.com/en/interpretation.html

http://www.niwa.co.nz/services/sat/gms

http://www.comet.ucar.edu/class/satmet/common/html/website_index/kidd
er/wv_3.html

Beware the wrapped URLs.

Cheers,
David


Re: Channel 5

Roger Mawhinney <roger@...>
 

David,
Not all of us subscribe to RIG and whilst your response may well be that I
should, fair enough, but your response didn't answer my question.
Thanks anyway
Roger

|

|-----Original Message-----
|From: David Taylor [mailto:david-taylor@...]
|Sent: 30 October 2003 08:28
|To: MSG-1@...
|
|--- In MSG-1@..., "Roger Mawhinney" <roger@m...> wrote:
|> Channel 5 is showing some amazing smooth swirls / clouds to day.
|Can someone explain in simple terms what I am seeing?
|> Roger
|
|Wasn't that explained in a relatively recent RIG Journal by
|Peter Wakelin? Issue 69, June 2002.
|
|[Note for MSG Data Manager users, now that the gain has been
|turned up on the WV images, you will get better-looking images
|if you turn off the "Calibrate thermal" setting for channels 5
|and 6, unless you need the calibration, that is! I will most
|likely make that the new default.]
|
|Cheers,
|David
|
|
|------------------------ Yahoo! Groups Sponsor
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|