VLA: Getting Started

From CASA Guides
Jump to navigationJump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.


Before delving into data calibration, editing, etc., it is very important to understand the structure and contents of a measurement set (the format in which EVLA data are stored). These pages will guide the new user through loading and initial inspection of their data, including information on loading and inspecting EVLA data, as well as on the structure and organization of the measurement set (MS). For a Guide on getting started with the CASA software, please see Getting Started in CASA.

If you are using AIPS to reduce your EVLA data please refer to Appendix E of the AIPS cookbook.

Getting Started CASA Guides

  • Obtaining data from the archive
    • Selecting a set of scans
    • Choosing to average data
    • Retrieval process
  • Starting CASA and initial inspection: listobs
  • Initial data flagging: online flags, zero flags, and shadow flags
  • Checking the online flags
  • Checking the weather information
  • Initial inspection: listobs
  • Graphical display: plotms
  • Graphical display: viewer
  • The measurement set directory structure and contents
  • Inspecting MS contents in CASA
  • Advanced: using information about MS structure
  • More advanced: EVLA Guides