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 Knowledgebase
Knowledgebase : CASA > General
On some computers CASA starts with an "Xvfb" error message. The "X virtual frame buffer" is only used by the viewer to transfer non-GUI outputs to the terminal. For most applications this is not really needed. But for a permanent fix, one may install x...
The following link provides information about how to balance system configurations regarding processing power, file I/O, and memory. https://science.nrao.edu/facilities/evla/data-processing/hardware-recommendations
The geodetic information used by CASA is updated regularly using the TAI_UTC table in the CASA data repository, which is derived from measurements provided by the Earth Rotation and Reference Systems Service (IERS). A slightly outdated table is not lik...
A new feature that has been requested from the users has finally come to the HelpDesk! You can now reply to your open tickets via email. When you get a notification of a reply to your HelpDesk ticket, you can now hit reply in your email client instea...
When running gaincal in CASA 4.0 and higher on a dataset that was previously calibrated using an earlier version of CASA, the following error may be generated: Caught exception: RecordInterface: field numthreads is unknown This will cause the gainca...
A bug has been revealed in clean (CASA 4.1.0 r24668) when using the outlierfile parameter to point to a file containing additional field information to include in cleaning. Clean will run normally but will skip producing some of the field output files. ...
You can link your NRAO and ALMA users accounts. This means you are then allowed you to navigate between help desk systems with one click and activate advanced features available in both help desks. If you click the link to the left 'ADD ACCOUNT LINKA...