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CASA Simulator & Configuration Files

The ALMA Sensitivity Calculator allows a user to simulate interferometric observations, including the ALMA observatory. The simulations consider the configuration of the ALMA array, the receiver specifics and atmospheric conditions.

Array Configuration Files

The simulation of ALMA observations depends on the actual array configurations. As outlined in Appendix A of the ALMA Proposers Guide and, in more detail, the ALMA Technical Handbook, there are 8 different configurations representing the 12-m array during Cycle 4 and one configuration representing the 7-m array. These 8+1 configurations are included in the Cycle 3 tar file below and can be used together with the CASA Simulator to produce representative models of ALMA Cycle 4 observations. The same files are also included in the web based simulation done with the ALMA Observation Tool (OST). DDT proposals during Cycle 4 need to use the Cycle 4 configuration files.

ALMA Cycle 1 configurations file
ALMA Cycle 2 configurations file
ALMA Cycle 3 configurations file
ALMA Cycle 4 configurations file