Hi Pete,
I wonder if this is at least partially responsible:
https://www.ospo.noaa.gov/data/messages/2025/08/MSG_20250805_1758.html
That says it has completed, if you don't see these issues anymore that
would lend to the theory. Do you notice if the timing of when this started
and/or stopped lines up with the planned maintenance mentioned above?
-Mike
On Wed, Aug 6, 2025 at 12:35 PM Pete Pokrandt <poker@xxxxxxxxxxxx> wrote:
> Hi all,
>
> I've noticed the past several days there are gaps in many of the GRB data
> files. Here's an example from the GOES 19 ABI channel 2 (red visible band)
> from this morning.
>
> Here are the file sizes for the files that I have received for the past
> few hours
>
> -rw-rw-r--. 1 ldm ldm 328635079 Aug 6 07:10
> OR_ABI-L1b-RadF-M6C02_G19_s20252181200206_e20252181209514_c20252181209552.nc
> -rw-rw-r--. 1 ldm ldm 334304629 Aug 6 07:21
> OR_ABI-L1b-RadF-M6C02_G19_s20252181210206_e20252181219514_c20252181219537.nc
> -rw-rw-r--. 1 ldm ldm 339713187 Aug 6 07:31
> OR_ABI-L1b-RadF-M6C02_G19_s20252181220206_e20252181229514_c20252181229553.nc
> -rw-rw-r--. 1 ldm ldm 344622117 Aug 6 07:40
> OR_ABI-L1b-RadF-M6C02_G19_s20252181230206_e20252181239514_c20252181239545.nc
> -rw-rw-r--. 1 ldm ldm 99635697 Aug 6 07:50
> OR_ABI-L1b-RadF-M6C02_G19_s20252181240206_e20252181249514_c20252181249552.nc
> -rw-rw-r--. 1 ldm ldm 355223647 Aug 6 08:00
> OR_ABI-L1b-RadF-M6C02_G19_s20252181250206_e20252181259514_c20252181259545.nc
> -rw-rw-r--. 1 ldm ldm 361019443 Aug 6 08:10
> OR_ABI-L1b-RadF-M6C02_G19_s20252181300206_e20252181309514_c20252181309546.nc
> -rw-rw-r--. 1 ldm ldm 365952779 Aug 6 08:21
> OR_ABI-L1b-RadF-M6C02_G19_s20252181310206_e20252181319514_c20252181319547.nc
> -rw-rw-r--. 1 ldm ldm 371623853 Aug 6 08:31
> OR_ABI-L1b-RadF-M6C02_G19_s20252181320206_e20252181329514_c20252181329556.nc
> -rw-rw-r--. 1 ldm ldm 376025396 Aug 6 08:40
> OR_ABI-L1b-RadF-M6C02_G19_s20252181330206_e20252181339514_c20252181339541.nc
> -rw-rw-r--. 1 ldm ldm 381338035 Aug 6 08:50
> OR_ABI-L1b-RadF-M6C02_G19_s20252181340206_e20252181349514_c20252181349561.nc
> -rw-rw-r--. 1 ldm ldm 385625318 Aug 6 09:00
> OR_ABI-L1b-RadF-M6C02_G19_s20252181350206_e20252181359514_c20252181359542.nc
> -rw-rw-r--. 1 ldm ldm 390331029 Aug 6 09:10
> OR_ABI-L1b-RadF-M6C02_G19_s20252181400206_e20252181409514_c20252181409535.nc
> -rw-rw-r--. 1 ldm ldm 89401307 Aug 6 09:20
> OR_ABI-L1b-RadF-M6C02_G19_s20252181410206_e20252181419514_c20252181419555.nc
> -rw-rw-r--. 1 ldm ldm 400133060 Aug 6 09:31
> OR_ABI-L1b-RadF-M6C02_G19_s20252181420206_e20252181429514_c20252181429551.nc
> -rw-rw-r--. 1 ldm ldm 404980007 Aug 6 09:41
> OR_ABI-L1b-RadF-M6C02_G19_s20252181430206_e20252181439514_c20252181439557.nc
> -rw-rw-r--. 1 ldm ldm 232816097 Aug 6 09:50
> OR_ABI-L1b-RadF-M6C02_G19_s20252181440206_e20252181449514_c20252181449557.nc
> -rw-rw-r--. 1 ldm ldm 154056273 Aug 6 10:00
> OR_ABI-L1b-RadF-M6C02_G19_s20252181450206_e20252181459514_c20252181459553.nc
> -rw-rw-r--. 1 ldm ldm 416413968 Aug 6 10:11
> OR_ABI-L1b-RadF-M6C02_G19_s20252181500206_e20252181509514_c20252181509546.nc
> -rw-rw-r--. 1 ldm ldm 418900344 Aug 6 10:25
> OR_ABI-L1b-RadF-M6C02_G19_s20252181510206_e20252181519514_c20252181519543.nc
> -rw-rw-r--. 1 ldm ldm 421060195 Aug 6 10:31
> OR_ABI-L1b-RadF-M6C02_G19_s20252181520206_e20252181529514_c20252181529552.nc
> -rw-rw-r--. 1 ldm ldm 423133036 Aug 6 10:41
> OR_ABI-L1b-RadF-M6C02_G19_s20252181530206_e20252181539514_c20252181539551.nc
> -rw-rw-r--. 1 ldm ldm 425821389 Aug 6 10:51
> OR_ABI-L1b-RadF-M6C02_G19_s20252181540206_e20252181549514_c20252181549552.nc
> -rw-rw-r--. 1 ldm ldm 207945828 Aug 6 11:00
> OR_ABI-L1b-RadF-M6C02_G19_s20252181550206_e20252181559514_c20252181559539.nc
>
> To make sure it isn't just me, I checked on the Unidata THREDDS server and
> the file sizes seem to match what I got
>
> OR_ABI-L1b-RadF-M6C02_G19_s20252181200206_e20252181209514_c20252181209552.nc
> 328.6 Mbytes 2025-08-06T12:10:32.322Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181210206_e20252181219514_c20252181219537.nc
> 334.3 Mbytes 2025-08-06T12:20:31.238Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181220206_e20252181229514_c20252181229553.nc
> 339.7 Mbytes 2025-08-06T12:30:36.489Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181230206_e20252181239514_c20252181239545.nc
> 344.6 Mbytes 2025-08-06T12:40:33.348Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181240206_e20252181249514_c20252181249552.nc
> 99.63 Mbytes 2025-08-06T12:50:07.355Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181250206_e20252181259514_c20252181259545.nc
> 355.2 Mbytes 2025-08-06T13:00:31.939Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181300206_e20252181309514_c20252181309546.nc
> 361.0 Mbytes 2025-08-06T13:10:33.105Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181310206_e20252181319514_c20252181319547.nc
> 365.9 Mbytes 2025-08-06T13:20:33.494Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181320206_e20252181329514_c20252181329556.nc
> 371.6 Mbytes 2025-08-06T13:30:37.876Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181330206_e20252181339514_c20252181339541.nc
> 376.0 Mbytes 2025-08-06T13:40:31.790Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181340206_e20252181349514_c20252181349561.nc
> 381.3 Mbytes 2025-08-06T13:50:10.795Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181350206_e20252181359514_c20252181359542.nc
> 385.6 Mbytes 2025-08-06T14:00:10.330Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181400206_e20252181409514_c20252181409535.nc
> 390.3 Mbytes 2025-08-06T14:10:06.199Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181410206_e20252181419514_c20252181419555.nc
> 89.40 Mbytes 2025-08-06T14:20:01.406Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181420206_e20252181429514_c20252181429551.nc
> 400.1 Mbytes 2025-08-06T14:30:34.302Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181430206_e20252181439514_c20252181439557.nc
> 404.9 Mbytes 2025-08-06T14:40:35.296Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181440206_e20252181449514_c20252181449557.nc
> 232.8 Mbytes 2025-08-06T14:50:04.090Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181450206_e20252181459514_c20252181459553.nc
> 154.0 Mbytes 2025-08-06T15:00:02.672Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181500206_e20252181509514_c20252181509546.nc
> 416.4 Mbytes 2025-08-06T15:10:39.942Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181510206_e20252181519514_c20252181519543.nc
> 418.9 Mbytes 2025-08-06T15:20:37.597Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181520206_e20252181529514_c20252181529552.nc
> 421.0 Mbytes 2025-08-06T15:30:37.023Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181530206_e20252181539514_c20252181539551.nc
> 423.1 Mbytes 2025-08-06T15:40:45.582Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181540206_e20252181549514_c20252181549552.nc
> 425.8 Mbytes 2025-08-06T15:50:50.557Z
> OR_ABI-L1b-RadF-M6C02_G19_s20252181550206_e20252181559514_c20252181559539.nc
> 207.9 Mbytes 2025-08-06T16:00:25.938Z
>
> Here's what the imagery looks like when you plot those files
>
> https://whirlwind.aos.wisc.edu/~wxp/goes16/vis/goes16_fulldisk.html
>
> Whatever is causing this is affecting the GOES18 west GRB feed as well.
>
> I did a little poking around and didn't see any admin messages about any
> data processing issues for GOES east/west data.
>
> Any idea what might be causing this?
>
> Thanks,
> Pete
>
> Pete Pokrandt - System Engineer IV
> UW-Madison Dept of Atmospheric and Oceanic Sciences
> 608-262-3086 - poker@xxxxxxxxxxxx
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--
- Mike Zuranski
