sarproz-group

Error importing Sentinel-1 external orbits

This topic contains 8 replies, has 2 voices, and was last updated by  mihaelagheorghe 3 months, 4 weeks ago.

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    Posts
  • #3085

    mihaelagheorghe
    Participant

    Hello,

    Today, when I tried to import a Sentinel-1 dataset and set the orbits I have encountered a few errors, such as:
    WARNING: An error occurred Downloading external S1 orbit. Built-in Orbit is used for date 2016/04/29.

    !No external orbit available for image 20160429

    An error occurred and was saved in the file lasterror.mat, directory D:\SARproz

    If you need assistance, please include the file lasterror.mat

    You may include also file 09_Jul_2018_19_00_03_sarproz.log

    Here a glimpse:

    Java exception occurred:
    java.net.SocketException: Connection reset by peer: socket write error
    at java.net.SocketOutputStream.socketWrite0(Native Method)
    at java.net.SocketOutputStream.socketWrite(Unknown Source)
    at java.net.SocketOutputStream.write(Unknown Source)
    at sun.nio.cs.StreamEncoder.writeBytes(Unknown Source)
    at sun.nio.cs.StreamEncoder.implFlushBuffer(Unknown Source)
    at sun.nio.cs.StreamEncoder.implFlush(Unknown Source)
    at sun.nio.cs.StreamEncoder.flush(Unknown Source)
    at java.io.OutputStreamWriter.flush(Unknown Source)
    at java.io.BufferedWriter.flush(Unknown Source)
    at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:472)
    at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:534)
    at org.apache.commons.net.ftp.FTP.port(FTP.java:862)
    at org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:463)
    at org.apache.commons.net.ftp.FTPClient.listNames(FTPClient.java:1950)!

    I have reinstalled Matlab MCR, and disabled all firewalls, but the problem persits. I know I can download the orbits manually, but since until now I didn’t have any any problems downloading the orbits for the very same dataset, I thought it would be helpful to ask first for some suggestions

    I attached also the error file.

    Thank you in advance,
    Mihaela

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  • #3087

    Yuxiao
    Spectator

    Update your software to the newest version first, please.

    YQ

    • #3104

      mihaelagheorghe
      Participant

      Thank you,

      I have updated my software to the newest version, but unfortunately, the problem persists.

      Kind regards,
      Mihaela

  • #3105

    Yuxiao
    Spectator

    Hello,

    Can you go to your browser and enter the following url:

    ftp://johndoe:psinsar12138@128.46.174.159/data/S1A/

    And see if you can connect. If you can, also try to go into the folder and randomly download a few orbits.

    If you cannot connect it means something is still blocking your ftp protocol. If you can connect, then let me know and I will try to understand what is happening.

    Thanks,
    Yuxiao

  • #3106

    mihaelagheorghe
    Participant

    Thank you for your answer!
    I tried connecting to the url and it worked.
    I have uninstalled the antivirus to make sure there’s no left firewall on. The one from windows is disabled.

    I have attached another type of message I receive when I open the program besides the Java error after I try setting the orbits

    Regards,
    Mihaela

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    • #3108

      Yuxiao
      Spectator

      Could you please send me the new lasterror.mat and log regarding the orbits downloading issue? – and before that, please update to the newest version of sarproz. I see in the previous log that you are using an old version from September last year. Please make sure you are using the newest version of sarproz.

      yuxiao

  • #3109

    mihaelagheorghe
    Participant

    The software has been updated since I uploaded the document.
    These are the new log and lasterror files now:

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    • #3115

      Yuxiao
      Spectator

      Hello,

      The FTP site is working well. There is either a network blocking issue (not necessarily from your side) or there also might be a proxy issue (if for any chances you are using a proxy).

      I would try to test the following to rule out problems:
      1. try to connect using a client, i.e., filezilla, and check if the connection works;
      2. If you have matlab, try to use the ftp() command to connect and see if you can connect;
      3. Try with another machine with another IP to make sure this is a network problem instead of a software problem.

      yuxiao

  • #3117

    mihaelagheorghe
    Participant

    Thanks a lot! Seems like it was a network problem. The precise orbits were successfully applied when I switched to another internet connection.
    Now I will have to figure out how to repair my other connection too

    Kind regards,
    Mihaela

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