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Hello Jaroslav,

If this error happens again, I have a temporary solution for you.

If you tick “Debug Message”, you will be able to see which date does this error occur exactly. Then you can manually download the orbital files for this date. The instruction could be found…[Read more]

Hello,
The problem has really gone by itself. Thank you for assistance.
If this kind of error happens again, do I just wait a couple of days for this error to be gone?

Jaroslav

Hello Jaroslav,

This looks like an orbital file downloading failure to me. I believe that clicking on “Set Orbits” again should have your issue resolved by now. Could you please try that?

yuxiao

Sorry for late response.
The of the file, i have found there: S1B_OPER_AUX_RESORB_OPOD_20171001T085309_V20171001T040012_20171001T071742.EOF

Jaroslav

Could you please also check ORBITS/S1B/2017/10/aux_resorb ? (S1B)

The log shows there’s something wrong with the orbit file in October. It is better we check it well.

Thanks!

yuxiao

Tenth directory was empty, however I suggest, that you kept in mind ninth one.
There was only one file: S1A_OPER_AUX_RESORB_OPOD_20170925T091232_V20170925T040053_20170925T071823.EOF

Jaroslav

Hello Jaroslav,

It looks to me that one downloaded orbit is corrupted. Can you help me confirm that?

You can go to ORBITS/S1A/2017/10/aux_resorb and paste the filenames here.

If my inference is true, we will go from there.

yuxiao

We encourage you to ask as many questions as possible.

I will wait for Dr. Perissin on this question, but I think it is only a very simple geometry that you could draw yourself.

I append here a 2D (horizontal and vertical) decomposition here:

https://www.dropbox.com/s/kftq8qf8nhkrp87/Practice1.png?dl=0

Now, with only one pass, it is…[Read more]

Hello sorry, again me making questions:
which are the formula used by this software to make the projections in the horizontal and vertical direction?
If it is possible to know of course

cheers
Cecilia

For each image, go to the folder and look for YOUR_DATA/EXT/yyyymmdd/yyyymmdd.meta.mat .

You can load this mat file, and one field is called doppler. When you read it, it contains all the information you will need for calculating the Doppler centroid: the coefficients, time tag, etc. The Doppler centroid can be then calculated for each image.

yuxiao

This is a similar discussion:
https://www.sarproz.com/groups/sarproz-group/forum/topic/import-sentinel-1a-data/

and in this link one can see the correct folder tree:
https://www.dropbox.com/s/k4odh9ye4k422in/Screenshot%202017-09-29%2019.12.36.png?dl=0

Hi Dimitris,
1. please take the time to read the messages from the software. You can learn a lot from them. They are included in the log file you attached.
2. one of the messages says: “If you need assistance, please include the file lasterror.mat “. without that file we cannot help.
3. here you have some material to learn how to use the software…[Read more]

Hi Daniele,

I did exactly has you showed me yesterday and I don’t see any problem about the xml files (please find the capture in attachments) or any files. I corrected all of those which were empty. They work fine on SNAP.
So I don’t understand what problem might be. Only works if I import only one S1 dataset.

Hi Joana,
such message is a warning, not an error. The log also says that the file you cannot modify is a file contained in the original SLC data, and this is not a problem, since the software is not going to overwrite those files.
Your problem is that your SLC data are partial or corrupted. The log says:
Error in s1_slc2file(): can not find…[Read more]

Just to note here that this issue has been solved.

For other’s reference, when one is importing SLC data:
1. Check if the input latitude/longitude is consistent with the MasterArea.kml (that is generated by clicking “View”);
2. Check if the extracted Master image is corresponding to the MasterArea.kml (you can see the master image by “View…[Read more]

Hello Alicia,

I suggest we set up a remote session for me to take a look at your dataset. Are you familiar with using teamviewer?

In this way, we could quickly go over your dataset and diagnose the problem.

If you have teamviewer installed, then email me at qyuxiao@sarproz.com so that I can quickly connect and see the dataset.

yuxiao