Re: Gaps in AVHRR images yesterday.


Robert Moore
 

David I started this email mid-morning and finished it in the afternoon!

Robert



"Unused files": The EARS AVHRR Manager should be handling the NOAA-19 data.
Is there an image on the NOAA_19 tab, and if so, what is the date of that image in the lower left corner.

** Yes, currently 2020-09-23 1341 N19

On the Ground Stations tab, is NOAA-19 checked (I don't think that makes a difference) and it the Kepler status showing a sensible age? The program version here is a beta 4.1.1.241 2019-Mar-11, although 4.1.2 is the release version.

**Kepler status says NOAA-19 and Metop A, B and C are all 5.3 days old. Last file reload 2020-Sep 23 13:07:35 that doesn’t quite make sense.

"BUFR and BIN data": Is the "Process AVHRR polar winds" box checked in the relevant Metop Managers?
** Yes

- I know that in the past you have had problems with the network link between receiver PC and processing PC. Perhaps you are still running a two-receiver system (as I do here)? If there are still network link issues those need to be resolved first. My suit of programs /must/ be able to delete files in the receive directory tree, so check whether there is unprocessed data being left behind in EUMETSAT_data_channel_1.
** EUMETSAT_data_channel_1 does have build-up of files but trimTree deals with them every 24 hours.


- I assume your TelliCast software is at least version 2.14.5. The current version is 2.14.6 but there's no specific need to upgrade [yet] if 2.14.5 is working correctly.
** Version 2_14.4_7 perhaps I need to udate

- You should have a separate receive directory for EUMETSAT Data Channel 1, and be pointing the EARS AVHRR Manager to that directory. The channel entry should be something like:

[channel]
name=EUMETSAT Data Channel 1
receive_buffer_size=8000000
target_directory=\EUMETCast\received\EUMETSAT_Data_Channel_1

** Yes - OK

- what you describe (high segment loss) is symptomatic of having TWO EARS AVHRR Managers running. Is that possible? Is there a third-party program which might be accessing the received directory?
** No

** So far I haven’t accessed the Novra console.

I’m currently only running one version of Metop manager, METOP-A. this tends to ‘lock’ while running and to get into it I have to use Task Manager to close it down and then open it in the usual way. The program doesn’t appear to freeze – it just won’t let me in, but sits in the taskbar processing files from the receiver.
Here are my missed segments (as of this afternoon)
Date: 2020-Sep-23, day 267, 19 passes

02:41 METOP-B 21 minutes, 02:56 02:58 03:00
04:33 METOP-B 11 minutes, 04:39 04:40 04:41 04:42
05:26 NOAA-19 17 minutes, 05:27 05:28 05:29 05:31 05:33 05:34 05:35 05:36 05:37 05:39 05:40 05:41
06:14 METOP-B 24 minutes, 06:15 06:18 06:22 06:23
06:40 METOP-A 28 minutes, 06:50 06:51 06:52 06:53 06:54
07:58 METOP-B 24 minutes, 08:07 08:08 08:09 08:10 08:12 08:13 08:14
08:21 METOP-A 30 minutes, 08:31 08:32 08:33 08:34
08:44 NOAA-19 26 minutes, 08:53 08:54 08:55 08:56 08:58
10:02 METOP-A 29 minutes, 10:12 10:13 10:14 10:15 10:16
11:42 METOP-A 19 minutes, 11:53 11:54 11:55 11:56 11:57

Date: 2020-Sep-23, day 267

Missing Metop-A global AVHRR chunks
0001 .. 0504 [orbit 72277]
0655 .. 0658 [orbit 72279]
0722 [orbit 72279]
0807 [orbit 72279]
0816 .. 0825 [orbit 72279]
0849 [orbit 72280]
0858 [orbit 72280]

I will try disabling HVS-1 later - perhaps at weekend

Robert
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