Re: [noaaport] [ldm-users] [External] Re: GOES-16 missing tiles, and packets arriving out of sequence

  • To: "Sebenste, Gilbert" <sebensteg@xxxxxxx>
  • Subject: Re: [noaaport] [ldm-users] [External] Re: GOES-16 missing tiles, and packets arriving out of sequence
  • From: Stonie Cooper <cooper@xxxxxxxx>
  • Date: Tue, 10 Dec 2024 11:07:50 -0600
Gilbert - looks good so far (frames out of sequence would show as missing
frames as the count would jump):

Ground Station #1, reset yesterday after talking to NOAA
      PID       TotalFrames     MissingFrames TotalProducts MissingProducts
    Retransmits
      NMC          13084773                 0       2165069               0
          26055
     NMC2          37472243                 0       1714826               0
          11434
     NOPT           1061621                 0        793799               0
           3820
      NPP           1351354                 0          4895               0
             36
      ADD          10659491                 0         71005               0
              0
      EXP           9885367                 0         43946               0
              0
      GRW           9406073                 0        129225               0
              0
      GRE           9914814                 0        128195               0
              0
     NWWS             87187                 0         29572               0
              0

*Prague*
Ground Station #2, reset yesterday after talking to NOAA
      PID       TotalFrames     MissingFrames TotalProducts MissingProducts
    Retransmits
      NMC          13073381                 0       2162899               0
          26054
     NMC2          37418946                 0       1700736               0
          11434
     NOPT           1060838                 0        793016               0
           3820
      NPP           1345224                 0          4889               0
             34
      ADD          10659484                 5         71003               0
              0
      EXP           9866764                 0         43910               0
              0
      GRW           9386903                 0        129093               0
              0
      GRE           9887961                 0        128055               0
              0
     NWWS             87080                 0         29554               0
              0
*Stonie Cooper, PhD*
Software Engineer III
NSF Unidata Program Center
University Corporation for Atmospheric Research
*I acknowledge that the land I live and work on is the traditional home of
The **Chahiksichahiks (**Pawnee), The **Umoⁿhoⁿ (**Omaha), and The **Jiwere
(**Otoe).*
*"There are decades where nothing happens; and there are weeks where
decades happen" *


On Tue, Dec 10, 2024 at 11:04 AM Sebenste, Gilbert <sebensteg@xxxxxxx>
wrote:

> A follow-up to this. The duplicate product count is due to “keep alive”
> messages being sent across numerous NWS interfaces. This has or will be
> taken care of. Otherwise,
> I haven’t lost any packets, nor do any appear out of order now. Stonie,
> can you verify this on your end?
>
>
>
> Gilbert Sebenste
>
> Meteorology Support Analyst
>
>
>
> *From:* Gilbert Sebenste <gilbert@xxxxxxxxxxxxxxxx>
> *Sent:* Monday, December 9, 2024 5:47 PM
> *To:* Sebenste, Gilbert <sebensteg@xxxxxxx>
> *Cc:* NOAAPORT <noaaport@xxxxxxxxxxxxxxxx>; Pete Pokrandt via ldm-users <
> ldm-users@xxxxxxxxxxxxxxxx>
> *Subject:* [External] Re: [ldm-users] GOES-16 missing tiles, and packets
> arriving out of sequence
>
>
>
> CAUTION: This email originated from outside of COD’s system. Do not click
> links, open attachments, or respond with sensitive information unless you
> recognize the sender and know the content is safe.
>
>
>
> Follow-up: They switched to the BNCF at 14:15Z this morning. I i'm not
> seeing missing satellite images, but I am seeing a huge number of
> re-transmits and duplicates that the LDM is rejecting at AllisonHouse and
> COD. A contact I have at NCF emailed me to check on it, and I have given
> him log samples so he can see what's going on.
>
>
>
> Gilbert
>
>
>
> On Dec 9, 2024, at 4:11 PM, Sebenste, Gilbert <sebensteg@xxxxxxx> wrote:
>
> 
>
> Good day everyone,
>
> I am going to try to kill two birds with one stone here.
>
> 1. The GOES-16 missing tiles issue has been resolved when SBN/NOAAport is
> sending their uplink via the ANCF and primary uplink. This problem was due
> to multiple
>
> issues, but they have gotten them taken care of on the NESDIS side of
> things. They had a nagging problem with channel 10, but that has been
> resolved (they had an issue at 14:10 with
>
> a missing tile this morning, but NOAAport was down for 5 minutes while
> they made expected changes to the SBN this morning, and all channels had a
> glitch at that time).
>
>
>
> 2. Additionally, the out-of-sequence packet issue when they are on the
> ANCF has been resolved, and was determined to be an NCF issue.
>
>
> But…
>
> When they are on the BNCF, and transmitting from their alternate uplink
> site, they still experience out-of-sequence packets, numerous missing
> products
>
> that have to be resent (we see a LOT of duplicate products here at COD
> when they are on the BNCF), missing satellite tiles…and even missing
> satellite images.
>
> NCF is aware of the situation. Last week they switched to the BNCF for 3
> hours, and the problems were still there, so they switched back to the
> primary. They are working on it.
>
>
> Gilbert Sebenste
>
> Meteorology Support Analyst
>
>
> <image001.png>
>
>
>
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