Date   

GOES 16 sun glint.

geojohnt@...
 

Hello,

I noticed considerable (a sensor over loading) area of sun glint on GOES 16 in the Pacific off South America on March 6 around 19:00 and  for quite a period afterwards.
The Sun on Saturday was around 5 degrees south of the equator.

Geostationary satellites do show some sun glint when the sun is at and around 0 degrees.
But MSG-4 was only showing a very small sign on Saturday.

Difference in sunshield design?

Regards,
John Tellick.



  


Re: Missing key error in Telicat

Ernst Lobsiger
 

On Sun, Mar 7, 2021 at 09:09 AM, Esko Petaja wrote:
I have typically SNR >14 dB
Esko

With this SNR you should get good reception for all EUMETCast services. If your 2.3 m antenna is
on the ground I could imagine with low elevation (maybe 20°?) you risk more terrestrial interference.

Anyway it seems you have a broken SR1 now as well. EUMETSAT is currently testing the new
Novra S400 router. This might be a replacement option to consider though with hight price tag.

Regards,
Ernst




Re: Missing key error in Telicat

Esko Petaja
 

On Sat, Mar 6, 2021 at 03:25 PM, Ernst Lobsiger wrote:
Hello Ernst

I have typically SNR >14 dB

My antenna is 2.3 M Prime focus dish

Br. Esko P



Esko

the most important figure is your SNR in units of dB (NOT in % !).
What SNR [dB] do you have on Transponder E1 (Bas, hvs-1) ?
hat SNR [dB] do you have on Transponder E2 (hvs-2) ?
What is the size of your "big antenna" ?


SR-1 Not booting

Esko Petaja
 

Hello all

I lost power supply for my SR 1.

I get new one but it is not working any more

-Power led goes to screen
-Network activity is shown both Lan and management ports
-Serial interface with USB shows port but no connection with Putty

Any ideas

Factory reset ?
IS somebody in GEO still repairing units ?

Br. Esko P


Re: Missing key error in Telicat

Ernst Lobsiger
 

>> I have very steady signal and big antenna <<


Esko

the most important figure is your SNR in units of dB (NOT in % !).
What SNR [dB] do you have on Transponder E1 (Bas, hvs-1) ?
What SNR [dB] do you have on Transponder E2 (hvs-2) ?
What is the size of your "big antenna" ?

Ernst


Re: Missing key error in Telicat

Esko Petaja
 

Hello

I see also some missed packets.

I need to check if it happened during same time of day, I did not thought it to be solar problem

If Interrference might be possible due to long cable (50m)
I have very steady signal and big antenna

Br. Esko P


Re: Brunt Ice Shelf.

geojohnt@...
 

Hello Ernst,

Thanks for the image.
I must - sometime - get a second RX and get into TP2.

Regards,
John.

+++++++++++++++++++++


-----Original Message-----
From: Ernst Lobsiger via groups.io <ernst.lobsiger@...>
To: MSG-1@groups.io
Sent: Fri, 5 Mar 2021 16:31
Subject: Re: [MSG-1] Brunt Ice Shelf.

On Fri, Mar 5, 2021 at 07:15 AM, <geojohnt@...> wrote:
I think this is the new A74 ice berg as seen by Metop a couple of days ago.
John,

here is a recent Sentinel-3A image of A74. No data from Sentinel-3A today :-( ...

https://uns.eumetsat.int/


Regards,

Ernst


Re: Brunt Ice Shelf.

Ernst Lobsiger
 

On Fri, Mar 5, 2021 at 07:15 AM, <geojohnt@...> wrote:
I think this is the new A74 ice berg as seen by Metop a couple of days ago.
John,

here is a recent Sentinel-3A image of A74. No data from Sentinel-3A today :-( ...

https://uns.eumetsat.int/

Regards,
Ernst


Brunt Ice Shelf.

geojohnt@...
 

Hello All,

I think this is the new A74 ice berg as seen by Metop a couple of days ago.

Regards,
John Tellick.





Re: Missing key error in Telicat

geojohnt@...
 

Hello Ernst and Dario,

And David also.

Yes, this is the 'problem' at the moment for central Europe.
Today's plot attached about 11:35 GMT.
Red line = maximum outage track - Sun/satellite/dish colinearity.

Best wishes,
John.

++++++++++++++++++++++++++++


-----Original Message-----
From: Ernst Lobsiger via groups.io <ernst.lobsiger@...>
To: MSG-1@groups.io
Sent: Fri, 5 Mar 2021 11:48
Subject: Re: [MSG-1] Missing key error in Telicat

On Fri, Mar 5, 2021 at 03:30 AM, Dario Stelitano wrote:
Dear David ,
i think the problem of Esko is the same i have, day by day , same hour. (but not solution at moment)
Dario,

this is the spring solar E10A satellite colinearity. That's the time at noon the sun (with strong microwave radiation) is in your antenna beam.
This causes strong noise, SNR goes down and LOCK might even be lost. Depending on the antenna size this will go away within a week or so
(when the sun has more elevation at noon). You will have the same problem in autumn again ... Twice a year, just pure celestial mechanics.

Regards,
Ernst


Re: Missing key error in Telicat

Dario Stelitano
 

Dear Ernst and David,
thank's a lot for the explanation.
Regards

--------------------------------------------------------------------
 Stelitano Dario, PhD
 Post-Doc Research Fellow, Remote Sensing Group
 Istituto Nazionale di Geofisica e Vulcanologia (INGV), ONT
 Via di Vigna Murata, 605
 00143 Rome, ITALY


Il giorno ven 5 mar 2021 alle ore 12:48 Ernst Lobsiger via groups.io <ernst.lobsiger=belponline.ch@groups.io> ha scritto:
On Fri, Mar 5, 2021 at 03:30 AM, Dario Stelitano wrote:
Dear David ,
i think the problem of Esko is the same i have, day by day , same hour. (but not solution at moment)
Dario,

this is the spring solar E10A satellite colinearity. That's the time at noon the sun (with strong microwave radiation) is in your antenna beam.
This causes strong noise, SNR goes down and LOCK might even be lost. Depending on the antenna size this will go away within a week or so
(when the sun has more elevation at noon). You will have the same problem in autumn again ... Twice a year, just pure celestial mechanics.

Regards,
Ernst


Re: Missing key error in Telicat

Ernst Lobsiger
 

On Fri, Mar 5, 2021 at 03:30 AM, Dario Stelitano wrote:
Dear David ,
i think the problem of Esko is the same i have, day by day , same hour. (but not solution at moment)
Dario,

this is the spring solar E10A satellite colinearity. That's the time at noon the sun (with strong microwave radiation) is in your antenna beam.
This causes strong noise, SNR goes down and LOCK might even be lost. Depending on the antenna size this will go away within a week or so
(when the sun has more elevation at noon). You will have the same problem in autumn again ... Twice a year, just pure celestial mechanics.

Regards,
Ernst


Re: Missing key error in Telicat

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

On 05/03/2021 11:14, Dario Stelitano wrote:
Dear David ,
i think the problem of Esko is the same i have, day by day , same hour. (but not solution at moment)
ERR:2021-03-02 11:31:47.595:Could not join channel "EUMETSAT Data Channel 4": Missing key 49921.
.
.
ERR:2021-03-04 11:34:27.192:Could not join channel "EPS-16": Missing key 52059.
73, Dario IW8REA
Dario,

Please see: https://www.satsignal.eu/wxsat/atovs/solar-outages.htm

73,
David GM8ARV
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv


Re: Missing key error in Telicat

Dario Stelitano
 

Dear David ,
i think the problem of Esko is the same i have, day by day , same hour. (but not solution at moment)

ERR:2021-03-02 11:31:47.595:Could not join channel "EUMETSAT Data Channel 4": Missing key 49921.
ERR:2021-03-02 11:32:08.114:Could not join channel "EUMETSAT Data Channel 1": Missing key 49934.
ERR:2021-03-02 11:33:46.636:Could not join channel "EPS-11": Missing key 49978.
ERR:2021-03-02 11:34:17.704:Could not join channel "EUMETSAT Data Channel 1": Missing key 49999.
ERR:2021-03-02 11:34:33.740:Could not join channel "EPS-3": Missing key 50007.
ERR:2021-03-03 11:31:40.394:Could not join channel "EUMETSAT Data Channel 2": Missing key 18793.
ERR:2021-03-03 11:32:24.259:Could not join channel "EPS-16": Missing key 18817.
ERR:2021-03-03 11:32:49.082:Could not join channel "EUMETSAT Data Channel 2": Missing key 18824.
ERR:2021-03-03 11:32:54.323:Could not join channel "EPS-Global": Missing key 18827.
ERR:2021-03-03 11:32:57.922:Could not join channel "E1B-GEO-1": Missing key 18833.
ERR:2021-03-03 11:34:58.848:Could not join channel "EPS-13": Missing key 18874.
ERR:2021-03-03 11:35:05.650:Could not join channel "EUMETSAT Data Channel 12": Missing key 18876.
ERR:2021-03-03 11:35:19.850:Could not join channel "EUMETSAT Data Channel 2": Missing key 18885.
ERR:2021-03-04 11:31:30.140:Could not join channel "EPS-10": Missing key 51959.
ERR:2021-03-04 11:31:42.231:Could not join channel "EUMETSAT Data Channel 6": Missing key 51965.
ERR:2021-03-04 11:31:58.350:Could not join channel "EUMETSAT Data Channel 12": Missing key 51977.
ERR:2021-03-04 11:32:11.829:Could not join channel "EUMETSAT Data Channel 5": Missing key 51990.
ERR:2021-03-04 11:32:29.850:Could not join channel "EUMETSAT Data Channel 1": Missing key 52001.
ERR:2021-03-04 11:34:27.192:Could not join channel "EPS-16": Missing key 52059.

73, Dario IW8REA

--------------------------------------------------------------------
 Stelitano Dario, PhD
 Post-Doc Research Fellow, Remote Sensing Group
 Istituto Nazionale di Geofisica e Vulcanologia (INGV), ONT
 Via di Vigna Murata, 605
 00143 Rome, ITALY


Il giorno ven 5 mar 2021 alle ore 08:23 David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺 via groups.io <david-taylor=blueyonder.co.uk@groups.io> ha scritto:
On 04/03/2021 20:37, Esko Petaja wrote:
> Hello
>
> I have regular errors in Telicast for all services Basic, HVS-1 , HVS-2
> about missing key in log file
> Icon comes red. It comes typically almost every day.
>
> In most cased it do not stop reception.
>
> Any Advise ?
>
> Br. Esko P

Esko,

I've seen this when the signal is marginal, or varying.  What do your
missed and recovered packet rates show for the three services?  Could it
be interference (11 GHz or on the IF)?

Of course, we've just passed the solar outage maximum, so it could just
be that.  If the issues are all around the same time, ~11:30-12:00 UTC?

73,
David GM8ARV
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv






Re: Missing key error in Telicat

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

On 04/03/2021 20:37, Esko Petaja wrote:
Hello
I have regular errors in Telicast for all services Basic, HVS-1 , HVS-2 about missing key in log file
Icon comes red. It comes typically almost every day.
In most cased it do not stop reception.
Any Advise ?
Br. Esko P
Esko,

I've seen this when the signal is marginal, or varying. What do your missed and recovered packet rates show for the three services? Could it be interference (11 GHz or on the IF)?

Of course, we've just passed the solar outage maximum, so it could just be that. If the issues are all around the same time, ~11:30-12:00 UTC?

73,
David GM8ARV
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv


Missing key error in Telicat

Esko Petaja
 

Hello

I have regular errors in Telicast for all services Basic, HVS-1 , HVS-2 about missing key in log file
Icon comes red. It comes typically almost every day.

In most cased it do not stop reception. 

Any Advise ?

Br. Esko P


Re: PyTROLL/SatPy Starter Kit V3.0 for GNU/Linux

Hendrik Fleming
 

Thanks for all your hard work, Ernst.
I am in the slow and painful process of migrating all my PC’s from Windows to Linux, so when I feel confident I will start playing with your scripts.

Hendrik


GEO Quarterly Newsletter

leshamilton2004
 

The March issue of the GEO Quarterly Newsletter is now available for download from
http://leshamilton.co.uk/GEO/newsletter.htm

Contents include
============
A tribute from John Tellick to the late Francis Bell
Articles describing iceberg A68a's three year odyssey and final breakup near South Georgia
An introduction to the 'NASA Worldview' website with its massive archive of high resolution imagery from the Terra, Aqua, Suomi and NOAA 20 satellites.


Re: Brunt shelf today

geojohnt@...
 

Hello Ferdinand,

Thanks for your image and information.
Something to look out for in the future now that A-68A has met its end.
And cloud cover has been annoyingly increasing in the South Atlantic these last couple of weeks.

Unfortunately it's several moths of darkness ahead for Antarctica so VIS imaging not possible. 

This was posted by ESA the other day:

https://www.esa.int/ESA_Multimedia/Images/2021/03/Giant_iceberg_breaks_off_Brunt_Ice_Shelf_in_Antarctica

Best wishes,
John.

+++++++++++++++++++++

-----Original Message-----
From: Ferdinand Valk <fvalk@...>
To: MSG-1@groups.io; GEO-Subscribers@groups.io
Sent: Sun, 28 Feb 2021 12:28
Subject: [MSG-1] Brunt shelf today

With thanks to John Tellick for the early warning, attached is a radar image
of today after the calving of the Brunt-North shelf yesterday.
The composition of the shelf is quite different from what had spun off from
Larsen as A68. Basically this shelf consists of lots of loose icebergs that
came from the Stancomb-Wills glacier that froze-in in the extended sea ice
field, which thickened over time. The ice slab measures up to 150 meters
thick in places. Its disintegration will therefore follow a pattern
different from A68, which was not composite but a solid block of sea ice to
begin with. It is well possible that the North slab will freeze in place now
that local summer is nearing its end.
Interestingly West Brunt, where Halley 6 was located (moved in 2017 to 6a in
the image), still clings on along a stretch of ice of about two kilometers.
Another huge calving in the offing, although the onset of growing sea ice
may cause it to be delayed until the end of 2021.
A larger image is provided at https://tinyurl.com/tcep563x

Ferdinand Valk






Re: Pytroll/SatPy

Christian Peters
 

David,

Python 3.8. is ok. I think 3.10. is not tested yet with Pytroll/Satpy, I'm not sure all packages are still available for 3.9?
I would stay on 3.8.

Regards,

Christian

Am 02.03.21 um 12:54 schrieb David J Taylor GM8ARV 🏴 🇪🇺 via groups.io:

What version of Python is required?  I have just updated to 3.8 for one program's needs (DVswitch) and I see 3.10 is [almost?] out.

Thanks,
David

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