Help with collating S1 GRDH and S3 SL-1-RBT

snap
#1

Hi,
I have made a graph(.xml) in which I want to collocate Sentinel-1 and Sentinel-3 RBT images. It does not work, and I wondered if anyone could help out:

I couldn’t make the graph using the graph-builder for some reason, so I made it by writing in notepad and copy-paste, the graph is attached here.

I want to load both a Sentinel-1, and a Sentinel-3 image, I then want to process the S1 image slightly, and then collocate them, with S1 as Master, and write it out as a GeoTiff. My inputs in the graph are the sentinel-1 GRDH image, the sentinel-3 SL-1-RBT image and my targetfile.
s1_s3_collocate_step_forum5.xml (5.2 KB)
I am calling it in the cmd as so:

gpt “C:\graph_folder\s1_s3_collocate_step_forum5.xml” -PtargetFile=C:\target_folder\name_collated -SsourceProduct_s1=“C:\s1_folder\s1_GRD_data.zip” -SsourceProduct_s3=“C:\s3_folder\S3A_SL_1_RBT_name.SEN3"”

I have two problems:

  1. it keeps on giving me errors, e.g. “Error: [NodeId: Subset] Operator ‘SubsetOp’: Mandatory source product (field ‘sourceProduct’) not set.”

  2. In actuality, I would like to take a subset of the S3 bands. Can this be done by this snippet for each band, or would I have to write it afterwards? If yes, how to I send all the subsets to be collated? Would it be better to take a subset of the bands after I have collated?

    BandSelect

    Reproject S2_radiance_an

I am working on Windows 10, 16 Gb ram,

best regards,
Kristian

#2

This is an image of your graph

grafik
grafik737×264 16.4 KB

Even when you give the input products with the GPT you need the Read node at the beginning of each thread (before Subset and before Reproject)

#3

Hi Andreas,

Thanks for the quick reply! I have put in two read nodes.
I still get the same error though.
When I try to edit my graph using the grapbuilder (with my files loaded) it takes like 5 min to change one single thing. Is that normal? (it’s not the case when I’m only working with s1 files).
This is my updated graph
s1_s3_collocate_step_forum6.xml (5.6 KB)

I ran the the command with the -e option, and the extensive error message is attached
here.

cmd_error_msg
cmd_error_msg1516×1171 81.9 KB

Obviosly, I can see that the error is in the ReadNode2, and that it’s not reading the file. I’m just too green to see why.

This is my exact command:
gpt “C:\Users\krist.snap\graphs\s1_s3_collocate_step_forum6.xml” -e -PtargetFile=C:\Users\krist\Documents\Syntese\data\collocate_testfolder\xfdumanifest.xml_collated -SsourceProduct_s1=“C:\Users\krist\Documents\Syntese\data\collocate_testfolder\S1A_IW_GRDH_1SDV_20180721T053041_20180721T053106_022888_027B77_8EC0.zip” -SsourceProduct_s3=“C:\Users\krist\Documents\Syntese\data\collocate_testfolder\S3A_SL_1_RBT____20180721T200909_20180721T201209_20180723T011520_0180_033_342_0900_LN2_O_NT_003.SEN3”

Best,

#4

this usually happens when the Apply Orbit File operator is added, but in this case I have no explanation.

grafik
grafik734×311 20.8 KB

I am not an expert with graphs, but I guess the GPT cannot relate
ReadNode to -SsourceProduct_s1
ReadNode2 to -SsourceProduct_s3