Date   
New group

Douglas Deans <douglas@...>
 

Good idea for non DJT software related topics.
Wish it success.

Douglas.

Re: New group

Timestep <Information@...>
 

From: Dave Cawley
Timestep Dartmouth England
e-mail Information@...
Web site http://www.Time-step.com
Tel. +44 (0)1803 833366
Fax. +44 (0)1803 839498

Hardware is better discussed on Timestep-L, so is this group just for
Tellique ??

Confused, but enthusiastic !

Dave

Re: New group

Guy Martin <agm@...>
 

Anything to do with MSG I'd have thought, hardware, software whether djt or other, info. Then no need to send same msg to several groups.

Guy

----- Original Message -----
From: Timestep
To: MSG-1@...
Sent: Friday, August 22, 2003 8:47 AM
Subject: Re: [MSG-1] New group



From: Dave Cawley
Timestep Dartmouth England
e-mail Information@...
Web site http://www.Time-step.com
Tel. +44 (0)1803 833366
Fax. +44 (0)1803 839498

Hardware is better discussed on Timestep-L, so is this group just for
Tellique ??

Confused, but enthusiastic !

Dave


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Re: New group

David J Taylor
 

Hardware is better discussed on Timestep-L, so is this group just
for
Tellique ??

Confused, but enthusiastic !

Dave
Dave,

The current remit of the group is ..

-----------------------------
For users of the Eumetsat MSG-1 weather satellite. The group's aim
is to provide a dedicated area for sharing information about the
hardware and software for receiving MSG-1 data, the satellite and
its facilities, and topics relating to the current trials. Related
groups include rig-l for general remote imaging topics and SatSignal
for users of David Taylor's weather satellite software, and topics
which are more appropriate for those groups are inappropriate here.
-----------------------------

.. and is open for discussion.

As some people are using hardware other than Timestep's, there is no
need to clutter your group with off-topic issues. I would guess
that Tellique software and payment methods might be one area but
there's much more...

- how the HRV scan is operated
- perhaps we could post the News and Regular Report messages for
those who don't yet have operational systems (copyright issues?)
- missing segment "contests"
- multi-spectral processing techniques with all those channels
available
- sample results
- required dish sizes

I would prefer to keep specific discussion of my software on the
SatSignal group, though, and general remote imaging topics on the
rig-l group. I guess there may be overlapping areas so we'll just
see what everyone wants!

Cheers,
David

Re: New group - and some question

Ulrich G. Kliegis <Ulrich.Kliegis@...>
 

On 22 Aug 2003 at 8:38, Douglas Deans wrote:

Good idea for non DJT software related topics.
Wish it success.

Douglas.
Hi crowd ;)

Me too :) It seems I was the first to enlist this morning. Wow. My MSG
frontend is in the make.

From the MSG official site, I understand that it was originally intended to use
the new bird itself for the propagation of the data now sent from hotbird. Is
that right? Would it have been the same format?
Will there be a redistribution from a future Meteosat like in the past (of
course with the new data format)?

Regards,

Ulli (who started listening to the APT chirp of Meteosat 2 or 3, won't
remember right now...)

Re: New group - and some question

David J Taylor
 

From the MSG official site, I understand that it was originally
intended to use
the new bird itself for the propagation of the data now sent from
hotbird. Is
that right? Would it have been the same format?
Will there be a redistribution from a future Meteosat like in the
past (of
course with the new data format)?
Ulli,

Yes, at some point in the future MSG-2 and MSG-3 (I already feel off-
topic!) will disseminate directly, and the file format will be the
same, but it will require different hardware and receiver processing
software before you can get to those files. I get the impression,
though, that the present dissemination via Hotbird and soon the C-
band satellite has made things a little easier for Eumetsat, and a
lot cheaper for the users, so likely the DVB dissemination will
remain. That's my reading of the situation.

Cheers,
David

Re: New group - and some question

Lawrence <lawrence@...>
 

On Fri, 22 Aug 2003 08:29:16 -0000, you wrote:


Ulli,
snip
software before you can get to those files. I get the impression,
though, that the present dissemination via Hotbird and soon the C-
band satellite has made things a little easier for Eumetsat, and a
lot cheaper for the users, so likely the DVB dissemination will
remain. That's my reading of the situation.

Cheers,
David
Hello David and Ulli

It is interesting to wonder why the DVB HotBird transmission was not
originally planned. I suppose that the idea of doing it this way was
not even thought about, yet the cost implications for the user are the
difference between receiving it and not receiving it. Not to mention
trying to install a huge dish for HRIT.

We may never know.

Lawrence

Re: New group - and some question

David J Taylor
 

It is interesting to wonder why the DVB HotBird transmission was
not originally planned. I suppose that the idea of doing it this
way was not even thought about, yet the cost implications for the
user are the difference between receiving it and not receiving it.
Not to mention trying to install a huge dish for HRIT.

We may never know.
Lawrence,

My history with MSG-1 doesn't go back far enough! At the time when
MSG-1 was being planned, were there even any satellites providing
any digital transmissions for domestic users? It was all analog
until quite recently wasn't it? So no cheap Technisat cards! We
should all thank that power amplifier that failed!

Cheers,
David

Re: New group - and some question

Luca Bertagnolio <lucaberta@...>
 

David,

true enough, for us lucky ones that live in the footprint of Hotbird. I have good result with a 40cm dish (when it's not windy or rainy!)

The C-band setup is definitely much more expensive that the Ku-band one. But again, since most stations are here in Europe, that's a good way to feed the data.

Regarding future DVB data streams, I have no doubts it's going to be like this for a long long while, there will be enough bitching about changing the dish from the old Met7 to the new setup, and by the time we will get the new MSG birds maybe everything will be on the Internet...

Bye, Luca

--- In MSG-1@..., "David Taylor" <david-taylor@b...> wrote:
My history with MSG-1 doesn't go back far enough! At the time when
MSG-1 was being planned, were there even any satellites providing
any digital transmissions for domestic users? It was all analog
until quite recently wasn't it? So no cheap Technisat cards! We
should all thank that power amplifier that failed!

Re: New group - and some questions

Lawrence <lawrence@...>
 

On Fri, 22 Aug 2003 08:49:01 -0000, you wrote:

Lawrence,

My history with MSG-1 doesn't go back far enough! At the time when
MSG-1 was being planned, were there even any satellites providing
any digital transmissions for domestic users? It was all analog
until quite recently wasn't it? So no cheap Technisat cards! We
should all thank that power amplifier that failed!

Cheers,
David
Essentially, the NOAA polar orbiters provide digital (h.r.p.t.)
telemetry even if (as must be the case) the original optical image is
sampled digitally for coding and transmission. I would think of PDUS as
being all but digital - I think that it is a matter of different
definitions. MSG-1 is simply an 'all-digital' satellite as compared to
Meteosat-7 and earlier sats being a mixture.

I set up a PDUS system and operated it until we moved to Southampton. I
am only now beginning to dismantle the 1.8m dish because I cannot now
see it being used.

regards

Lawrence

Re: New group - and some questions

Luca Bertagnolio <lucaberta@...>
 

Lawrence,

I would try to see if a 1.8m dish would be enough to receive MSG-1 in C-band from Atlantic Bird, if I were you. Just pure curiosity, as I think that the data is an exact bit dump of the HotBird data.

Actually, I am quite convinced that the Fucino uplink station in Italy receives HotBird, dissects the DVB data and then feeds it up to Atlantic Bird, as simple as that. No need to get into the weeds of the DVB payload, just copy bits!

Bye, Luca

--- In MSG-1@..., Lawrence <lawrence@a...> wrote:
I set up a PDUS system and operated it until we moved to Southampton. I
am only now beginning to dismantle the 1.8m dish because I cannot now
see it being used.

HRV segment positions - discussion topic

David J Taylor
 

Given the ability of the HRV scanner to look at two different
windows during its scan - with separate east-west starting points
for the upper and lower segments - how would you like to see the
scan managed?

- tracking the sun
- fixed on zero degrees longitude
- fixed on Europe and Africa
- any other ideas?

David

Re: HRV segment positions - discussion topic

Guy Martin <agm@...>
 

Can we have a (sensible) choice

Guy

----- Original Message -----
From: David Taylor
To: MSG-1@...
Sent: Friday, August 22, 2003 10:56 AM
Subject: [MSG-1] HRV segment positions - discussion topic


Given the ability of the HRV scanner to look at two different
windows during its scan - with separate east-west starting points
for the upper and lower segments - how would you like to see the
scan managed?

- tracking the sun
- fixed on zero degrees longitude
- fixed on Europe and Africa
- any other ideas?

David


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Re: HRV segment positions - discussion topic

Douglas Deans <douglas@...>
 

----- Original Message -----
From: "David Taylor" <david-taylor@...>
To: <MSG-1@...>
Sent: Friday, August 22, 2003 10:56 AM
Subject: [MSG-1] HRV segment positions - discussion topic


Given the ability of the HRV scanner to look at two different
windows during its scan - with separate east-west starting points
for the upper and lower segments - how would you like to see the
scan managed?

- tracking the sun
- fixed on zero degrees longitude
- fixed on Europe and Africa
- any other ideas?

David
I certainly think Europe is priority No.1. Low sun (early and late) is
excellent for cloud topography etc. so a 6 hour bit in the middle of the day
really is not good enough. One difficulty is the judgement of how the
northern hemisphere will look (in visible) during the winter months although
the appearance of the southern hemisphere over our summer has given some
clues.
Permanent Europe with the lower segment following the sun ? That would
ensure visible images for tropical cyclones in the Madagascar area and of
course the formation of tropical depressions/storms/hurricanes in the
Atlantic.

Douglas.

channel-4

Lawrence <lawrence@...>
 

I am finding that when channel-4 (infra-red) is dropped into GSS-4, it
is being interpreted as a visible channel. My settings out somewhere?

Lawrence

New file uploaded to MSG-1

MSG-1@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the MSG-1
group.

File : /200308200815-msg-ch12nFC.jpg
Uploaded by : johnbwillisuk <john@...>
Description : Eastern Europe taken on a rare occaision when Eumetsat transmitted the eastern segment. Captured with MGM and processed on GSS4. 1.3MB.

You can access this file at the URL

http://groups.yahoo.com/group/MSG-1/files/200308200815-msg-ch12nFC.jpg

To learn more about file sharing for your group, please visit

http://help.yahoo.com/help/us/groups/files

Regards,

johnbwillisuk <john@...>

retention of settings

Lawrence <lawrence@...>
 

I notice that after closing down MSG DM, settings such as histogram
equalise are not retained. I suspect that I tend to use the same
settings for most channels - could we save these at close down?

regards

Lawrence

Re: channel-4

David J Taylor
 

--- In MSG-1@..., Lawrence <lawrence@a...> wrote:
I am finding that when channel-4 (infra-red) is dropped into GSS-
4, it
is being interpreted as a visible channel. My settings out
somewhere?

Lawrence
This is off-topic - please take this to the SatSignal group.

Thanks,
David

Re: retention of settings

David J Taylor
 

--- In MSG-1@..., Lawrence <lawrence@a...> wrote:
I notice that after closing down MSG DM, settings such as histogram
equalise are not retained. I suspect that I tend to use the same
settings for most channels - could we save these at close down?

regards

Lawrence
This is off-topic - please take this to the SatSignal group.

Thanks,
David

Eclipse periods

David J Taylor
 

Will MSG-1 have eclipse periods like other geostationary satellites,
when there is not enough power to keep the electronics fully
running? I am presuming so, but have seen no announcement as yet.
I also asusme that at some point there will be periods where the
imager will be switched off to avoid looking at the sun.

I see this will start soon on GOES and Meteosat 7.

Cheers,
David