Processing SMA Data
1.2 m Telescopes
SMA Data Calibration with MIR
MIR (Millimeter Interferometer Reduction) is an IDL based software package. Originally developed at Caltech for use at OVRO, it has been adapted for the reading and calibration (but not imaging) of SMA data. MIR is currently the recommended software for SMA data calibration. Be aware that IDL requires a license.
Download MIR at github
See the effects of each calibration step at MIR Calibration Steps Explained.
4 Feb 2020: A new version of MIR has been released in github. CASA flux models are now used by default with no additional keywords needed. To use the original flux models, the users should use the '/orig' keyword.
You can also find fixes for specific issues between 2005 and 2010 at SMA Data Errors and MIR Fixes.
MIR is available on all RTDC machines. Simply type
IDL is single threaded and has considerable memory requirements - typically 2.5-3 x the size of the data. For large SWARM datasets you may to rechunk, or only read in a single receiver or sideband at a time.
We are developing a MIR based pipeline for the calibration of SMA data. This is an ongoing project so you can expect updates to this section.
You can run any MIR script as a batch job from the command line. Be aware however, that the script names must be consistent. For example, if your script is called testscript.pro, then the first line of your script must be
When running batch jobs you can force any MIR task to accept the default options rather than waiting for user input at the prompt by using the /nowait flag.
SMA calibration script (under development)
You can email firstname.lastname@example.org for general help. Or contact the MIR project scientist, Dr. Qi, at email@example.com with detailed questions.