
During the period June 29th - August 24th 2015 the ASTRON pipelines wrote LOFAR Measurement Sets (MSs) in a manner inconsistent with the MS definition v2 because:
Also, all LOFAR MS have been generated with two tables (STATE,PROCESSOR) missing. However, since release 4.1 a check for tables is done by CASA, thus causing a failure.
Users working with CASA 4.1 or higher on MS generated before September 2nd 2015 need to fix their MSes.
A script to add missing tables in the MS to conform with CASA standards and to make a fix in the MeasInfo in the spectral window table is available here. The software requirements to run this script on your systems are:
1. TaQL (so casacore)
2. pyrap
Usage:
> tar -xvf fixLofarMSAug2015.py.tar
> python fixLofarMSAug2015.py <name MS>
In case you experience issues when running this script, please contact SDC Operations through the ASTRON helpdesk which is hosted at https://support.astron.nl/rohelpdesk