| Command | Comments |
|---|
| |
| %sdfits -scans=10:13 -backends=dcr /home/gbtdata/TREG_111504 | The first step in reducing GBT data with the gbtidl program is to convert (or "fill") the data from the raw GBT FITS files into an sdfits file. This step accomplishes the task. The output file will be called TREG_111504.raw.dcr.fits. Additional information is available on the sdfits command |
| %gbtidl | Starts gbtidl and loads the appropriate scripts needed to reduce GBT data. |
| cont | Puts the program in continuum mode, which is appropriate for reducing tipping data |
| filein,'TREG_111504.raw.dcr.fits' | This identifies the input data set. If the data is contained all in one file, the filein command is appropriate. It is also possible to use a directory of sdfits files as the input, in which case the dirin command is used to identify the input directory. |
| peak,10 | Calibrates the tip scan and fits an atmospheric model to determine the opacity. Additional help on the peak? procedure is available in the Reference Manual. Peak does not yet exist in GBTIDL. |