NOAA 20 only partly give visual channels

VIIRS Sensor Data Record

NOAA 20 only partly give visual channels

Postby trygveas » Mon Oct 08, 2018 7:32 am

Hi

Using CSPP 3.0 I see now that for NOAA 20 it partly gives empty visual channels.

As an example here is the output of todays pass over Northern Europe starting around 1011UTC for channel I01:
-rw-r--r-- 1 polarsat polarsat 49226624 Oct 8 10:27 SVI01_j01_d20181008_t1011027_e1012272_b04599_c20181008102720489376_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 49226664 Oct 8 10:27 SVI01_j01_d20181008_t1012284_e1013529_b04599_c20181008102723797646_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 49226664 Oct 8 10:27 SVI01_j01_d20181008_t1013542_e1015187_b04599_c20181008102729549383_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 49226664 Oct 8 10:27 SVI01_j01_d20181008_t1015199_e1016444_b04599_c20181008102729420386_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 49226664 Oct 8 10:27 SVI01_j01_d20181008_t1016457_e1018084_b04599_c20181008102723366970_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 49226664 Oct 8 10:27 SVI01_j01_d20181008_t1018096_e1019342_b04599_c20181008102726364803_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 37280 Oct 8 10:27 SVI01_j01_d20181008_t1019354_e1020599_b04599_c20181008102715347212_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 37280 Oct 8 10:27 SVI01_j01_d20181008_t1021012_e1022257_b04599_c20181008102716297299_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 37280 Oct 8 10:27 SVI01_j01_d20181008_t1022269_e1023496_b04599_c20181008102715322539_cspp_dev.h5
-rw-r--r-- 1 polarsat polarsat 37240 Oct 8 10:27 SVI01_j01_d20181008_t1023509_e1025154_b04599_c20181008102714295126_cspp_dev.h5

Channel I02, I03, M01, M02, M03, M04, M05, M06 and M09 gives similar results. That is the first 6 segments are filled with data, the last( most northern) 4 is filled with some empty data.
Winter is coming, but still there is enough sunlight to light up these parts of the world.

I dont have the logs for this processing, but could do a reprocessing if this is needed.

Is this something you have seen before?

Regards
Trygve Aspenes
Attachments
20181008101215noaa_2020181008102511.png
Here is a plot of the calculated area of the pass(red rectangle). The dark area is sun below horizon
20181008101215noaa_2020181008102511.png (128.43 KiB) Viewed 1033 times
quicklook-20181008101102.png
Here is a quicklook of the data
quicklook-20181008101102.png (490.35 KiB) Viewed 1033 times
trygveas
 
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Joined: Mon Oct 08, 2018 7:18 am

Re: NOAA 20 only partly give visual channels

Postby trygveas » Mon Oct 08, 2018 2:17 pm

Hi again

I ran a test on the same RDR and got the same result again.

As the run is successfull there are no logs. I have captured to out put from the run.

I can provide you the RDR I use, but its 600MB. Should upload it here? Or use like filebin?

Regards

Trygve Aspenes
trygveas
 
Posts: 2
Joined: Mon Oct 08, 2018 7:18 am

Re: NOAA 20 only partly give visual channels

Postby scottm » Mon Oct 08, 2018 2:37 pm

If you run the SDR with the -d option the log file will not be deleted.
You can put some RDRs on our server ftp.ssec.wisc.edu/pub/incoming

Send me an email to let me know when you pushed them. scott.mindock@ssec.wisc.edu

I think you are just seeing differences in behavior by ADL.
scottm
 
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Joined: Thu Jan 06, 2011 9:25 am


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