Packets


David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

On 08/04/2021 19:02, Graham Woolf wrote:
Hi
Has anyone heard any more news about the current situation with regard to lost and recovered packets  on all three services
I just wondered if is being looked into
Regards
Graham
Briefly, I reported it, and the fault was fixed, and I was informed it had been fixed.

I noted that it had re-appeared in my daily report to EUMETSAT today, but as yet I've had no response to that. Although it's holiday time and the virus, which may delay a response, I think that anyone experiencing the problem might like to provide a report to EUMETSAT. I guess the more information the better.

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


Graham Woolf
 

Hi

Has anyone heard any more news about the current situation with regard to lost and recovered packets  on all three services

I just wondered if is being looked into

Regards

Graham


David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

On 02/04/2021 12:23, Ernst Lobsiger via groups.io wrote:
Hi All
Receiver Io, 12 years old Core Duo + TBS-6909X V11. High missed but all recovered packets so far.
Has anyone heard from EUMETSAT what caused a similar packet problem we had just weeks back?
Regards,
Ernst
Ernst,

I didn't get an official answer (other than a thanks, and a note that the problem was fixed) but your observation that the data flow exceeded the maximum was correct.

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


David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

On 02/04/2021 13:42, Heiko Schellhorn wrote:
Hi David

I suggest reporting that to EUMETSAT (although Ops are on holiday).
I'll do.

The HVS-2 loss:
As yesterday only HVS-1 was mentioned I didn't check HVS-2.

  MSG:2021-04-01 11:46:27.772:Missed parts of file
`S5P_NRTI_L2__AER_AI_20210401T094109_20210401T094609_17961_01_010400_20210401T114235.nc'
id 6065b237001ae87a from channel `E2H-S5P-01'
About S5P I can't report on HVS-2 as I receive the whole S5P-stuff and
others via terrestrial EumetCast.
On HVS-2 I receive OLCI, SRAL and SLSTR.
I just checked and only had one single missed/recovered OLCI file back
on March 31st.
No losses nor missed yesterday.
Maybe lower sat-signal and I don't see it as I run a 1.8m and one 2.0m
dish ?
Have a happy easter
Heiko
Thanks!

I guess a stronger signal /could/ be less susceptible, but I think it unlikely in this case. We've seen this before during recent EUMETSAT changes.

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


Heiko Schellhorn
 

Hi David

I suggest reporting that to EUMETSAT (although Ops are on holiday).
I'll do.

The HVS-2 loss:
As yesterday only HVS-1 was mentioned I didn't check HVS-2.

  MSG:2021-04-01 11:46:27.772:Missed parts of file `S5P_NRTI_L2__AER_AI_20210401T094109_20210401T094609_17961_01_010400_20210401T114235.nc' id 6065b237001ae87a from channel `E2H-S5P-01'
About S5P I can't report on HVS-2 as I receive the whole S5P-stuff and others via terrestrial EumetCast.

On HVS-2 I receive OLCI, SRAL and SLSTR.

I just checked and only had one single missed/recovered OLCI file back on March 31st.
No losses nor missed yesterday.

Maybe lower sat-signal and I don't see it as I run a 1.8m and one 2.0m dish ?

Have a happy easter

Heiko
--
---------------------------------------------------------------------------
Dipl. Inf. Heiko Schellhorn

University of Bremen Room: NW1-U 2065
Inst. of Environmental Physics Phone: +49(0)421 218 62091
P.O. Box 33 04 40 Fax: +49(0)421 218 62070
D-28334 Bremen Mail: mailto:schell@physik.uni-bremen.de
Germany www:
http://www.iup.uni-bremen.de/~schell
http://www.sciamachy.de
http://www.esa-ghg-cci.org

The problem with the world is that the intelligent people are full of doubts,
while the stupid ones are full of confidence.
- Charles Bukowski -


Ernst Lobsiger
 

Hi All

Receiver Io, 12 years old Core Duo + TBS-6909X V11. High missed but all recovered packets so far.
Has anyone heard from EUMETSAT what caused a similar packet problem we had just weeks back?

Regards,
Ernst


Graham Woolf
 

Hi David

A few lost but most recovered

Regards

Graham


David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

On 02/04/2021 09:41, Graham Woolf wrote:
Hi
I am seeing a small amount of packet loss on all three services
Regards
Graham
Lost or missed & recovered packets?

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


David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

On 01/04/2021 21:03, Heiko Schellhorn wrote:
Doesn't seem to be a general problem with all services on HVS-1.
Receiving EPS-3 and 5 via HVS-1 I neither see missed/recovered nor lost
packages.
Regards
Heiko
Heiko,

I suggest reporting that to EUMETSAT (although Ops are on holiday). I take all channels, so I can't report on individual channels. Interesting that both EPS-3 and EPS-5 have a lower bandwidth (12000 kbps) than the highest rate channels (16000 kbps). That may be significant. Data from:


https://eumetsatspace.atlassian.net/wiki/spaces/DSEC/pages/700055570/Channels+and+Packet+Identifiers+PIDs

[Why isn't this a EUMETSAT site?]

Here, although there has been an anomalous missed & recovered TelliCast packet loss rate (like when too much data was pushed through) actual lost packets were very low, and possibly just one lost EUMETCast file on HVS-2. No losses on HVS-1 (all channels) or on BAS (the channels I take). The HVS-2 loss:

MSG:2021-04-01 11:46:27.772:Missed parts of file `S5P_NRTI_L2__AER_AI_20210401T094109_20210401T094609_17961_01_010400_20210401T114235.nc' id 6065b237001ae87a from channel `E2H-S5P-01'

and this was also reported at Arne van Belle's station.

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


Graham Woolf
 

Hi

I am seeing a small amount of packet loss on all three services

Regards

Graham


Herman Vijlbrief
 

Same here Ian on Basic  and HVS-1 services. No losses

Regards,
Herman


Op 1-4-2021 om 20:50 schreef Ian Deans via groups.io:


Appears to be an issue with Eumetcast since about 13.00 UTC with all three services showing continual missed and recovered packets, but no actual packet losses.

Regards
Ian.


-


Heiko Schellhorn
 

Doesn't seem to be a general problem with all services on HVS-1.

Receiving EPS-3 and 5 via HVS-1 I neither see missed/recovered nor lost packages.

Regards

Heiko

I had a lot of missed packets on HVS-1
Il Gio 1 Apr 2021, 20:50 Ian Deans via groups.io <http://groups.io> <iandeans142=btinternet.com@groups.io <mailto:btinternet.com@groups.io>> ha scritto:
Appears to be an issue with Eumetcast since about 13.00 UTC with all
three services showing continual missed and recovered packets, but no
actual packet losses.
Regards
Ian.
--
---------------------------------------------------------------------------
Dipl. Inf. Heiko Schellhorn

University of Bremen Room: NW1-U 2065
Inst. of Environmental Physics Phone: +49(0)421 218 62091
P.O. Box 33 04 40 Fax: +49(0)421 218 62070
D-28334 Bremen Mail: mailto:schell@physik.uni-bremen.de
Germany www:
http://www.iup.uni-bremen.de/~schell
http://www.sciamachy.de
http://www.esa-ghg-cci.org

The problem with the world is that the intelligent people are full of doubts,
while the stupid ones are full of confidence.
- Charles Bukowski -


Daniele Guardigli
 

I had a lot of missed packets on HVS-1


Il Gio 1 Apr 2021, 20:50 Ian Deans via groups.io <iandeans142=btinternet.com@groups.io> ha scritto:

Appears to be an issue with Eumetcast since about 13.00 UTC with all
three services showing continual missed and recovered packets, but no
actual packet losses.

Regards
Ian.






Ian Deans
 

Appears to be an issue with Eumetcast since about 13.00 UTC with all three services showing continual missed and recovered packets, but no actual packet losses.

Regards
Ian.