Information about the SKA-AWS Astrocompute proposal called: "Calibration of LOFAR ELAIS-N1 data in the Amazon cloud". Maintained by J. Sabater (Institute for Astronomy, University of Edinburgh).
We have created an AMI with the LOFAR software pre-installed:
ami-bdab83c6. It is based on the Ubuntu 16.04 LTS official AMI.
- casacore libraries.
- casarest libraries.
- LOFAR software (release 2.21).
- Some additional Python libraries like astropy, Jupyter, etc.
- GRID certificates and tools.
- SRM tools.
- AWS tools and Python libraries.
- ddf pipeline.
We keep some old AMIs with Ubuntu 14.04 LTS for compatibility reasons:
- LOFAR 2.19:
- LOFAR 2.18 pre-release:
- LOFAR 2.17:
- LOFAR 2.17 pre-release:
- LOFAR 2.15 head:
Packaging of LOFAR
The Kern PPA keeps all the LOFAR dependencies packaged and updated. However, we decided to independently generate the LOFAR package for each release to maintain control of the compilation process and to be able to quickly deploy patched versions of the LOFAR software when a bug is found. The generation of the packages is explained in: Github vagrant
The LOFAR data of the ELAIS-N1 field is released in the S3 bucket
lofar-elais-n1. A list with the data can be found in: data.
The calibration of the data is performed in two steps: a) the prefacet calibration and b) the facet calibration. All the steps are already implemented in: Github pipeline.
- Calibration of LOFAR data on the cloud (published in Astronomy & Computing): lofar_cloud.pdf