Unable to read ERS XCA file - new ERS .E1 format

Microwave Toolbox Problem Reports
#1

I download and unpack the “new” ERS-data(format) .E1 if i want to remove antenna pattern or calibrate the data i get the following error:

A problem occurred during the target product initialisation.
Type: OperatorException
Message: Calibration: Unable to read ERS XCA file no protocol: /

org.esa.snap.core.gpf.OperatorException: RemoveAntennaPattern: Unable to read ERS XCA file no protocol: /
at org.esa.snap.engine_utilities.gpf.OperatorUtils.catchOperatorException(OperatorUtils.java:386)
at org.esa.s1tbx.calibration.gpf.RemoveAntennaPatternOp.initialize(RemoveAntennaPatternOp.java:89)
at org.esa.snap.core.gpf.internal.OperatorContext.initializeOperator(OperatorContext.java:499)
at org.esa.snap.core.gpf.internal.OperatorContext.getTargetProduct(OperatorContext.java:278)
at org.esa.snap.core.gpf.Operator.getTargetProduct(Operator.java:359)
at org.esa.snap.core.gpf.GPF.createProductNS(GPF.java:311)
at org.esa.snap.core.gpf.GPF.createProduct(GPF.java:286)
at org.esa.snap.core.gpf.GPF.createProduct(GPF.java:265)
at org.esa.snap.graphbuilder.rcp.dialogs.SingleOperatorDialog.createTargetProduct(SingleOperatorDialog.java:172)
[catch] at org.esa.snap.graphbuilder.rcp.dialogs.SingleOperatorDialog.onApply(SingleOperatorDialog.java:287)
at org.esa.snap.ui.AbstractDialog.lambda$initUI$17(AbstractDialog.java:494)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

How could i work with the new dataformat for ERS within Snap ?

#2

This problem exists since the standalone tbx1 and nobody cares about this error ?

#3

Calibrating ERS-1 .E1 products appears to work fine. Are you using the latest version of SNAP?

#5

Before we calibrate the ERS data we have to remove the antenna pattern but nothing of this work with the newest version. I tried different ERS scenes and also download new scenes and i get all the time the same error ? Is there a special preprocesing for the .E1 format required ?
Moreover it does not run since the Sentinel-1 Toolbox !

#6

this error message of yours seems strange “Message: Calibration: Unable to read ERS XCA file no protocol:”

are you passing the “*.E1” file to the the Read module of gpt (or opening this in the user interface?), and then give the imported *.dim format to Antenna Correction and Calibration? Maybe I am wrong, but this error message sounds like your input to calibration is not the *.dim format?

I just now process such files with SNAP and works fine with me as well …

#7

So i could explain my workflow. First of all i take the SNAP user interface.

  1. File --> Import --> SAR Sensors --> ERS1/ 2 SAR (.E1/-E2)
    (now it is visible in the product explorer)
  2. Radar --> Radiometric --> Calibrate OR Remove Antenna Pattern
    (and now if i run the module with the predefined values (save as: beam-dimap & save as db) i get the error message above)

We tested this workflow in “Next ESA SAR Toolbox” and it works…

#8

What’s the version of snap and the operating system? What’s the path to your user home/.snap/auxdata folder. It could be that it’s not handling spaces or unicode characters in a path?

#9

It`s version SNAP 2.0-beta-07 and S1TBX version 2.0.2. I’m running Windows 7 (64-bit). The path only consists of simple letters without any space or special characeters (> C:\Users…\ .snap\auxdata)

#10

You should make a clean installation of SNAP and S1TBX. The final SNAP 2.0 is already available.
After installation you can get the latest S1TBX version again.

#11

Great, it work’s ! Thank you !

Why did you not inform the beta users that there is now the correct version, you do have the email addresses ? For the next time it will be very helpful.