GBT Data Analysis The primary tool for reduction and analysis of GBT spectral line data is GBTIDL.  GBTIDL consists of a set of straightforward yet flexible calibration, averaging, and analysis procedures (the "GUIDE layer") modeled after the UniPOPS and CLASS data reduction philosophies, a customized plotter with many built-in visualization features, and Data I/O and toolbox functionality that can be used for more advanced tasks.  GBTIDL works with pointed spectroscopy observations, and currently has only limited support for imaging and continuum observations. GBT spectral line imaging data can be reduced and analyzed in AIPS++, the Astronomical Information Processing System. Here are some Tips on how to run the AIPS++ system optimally in GB.  A customized application has been developed within the AIPS++ system to handle single-dish radio spectral data, called DISH. DISH includes both a graphical and a command line interface.  DISH and AIPS++ are the preferred packages for on-the-fly maps and GBTIDL is the preferred package for pointed spectroscopy. A continuum imaging package called OBIT is under development.  Contact Bill Cotton for details and status of OBIT.  For general continuum data reduction, users can run GFM, the DCR tool (which handles pointing, focusing, and the like) or the AIPS++ imager application (an alternative to OBIT for continuum imaging).

Basics GBTIDL AIPS++ Main Page Tips on Running AIPS++ in GB DISH User's Guide GBT Continuum Single Dish Imaging in AIPS++ Example spectral line reduction session DCR Tool documentation Running Classic AIPS in GB

 

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last modified on: 23-Oct-2001 JAB