Example of position switched observations using the L-band RX.
These observations were taken as part of the GBT observer training.
The frequencies observed are: 
1420.4057517,1612.231,1665.4018,1667.3590,1720.5299 MHz
With 23 MHz wide spectral windows split into 32768 channels.
The integration time was set to 2 s, and the scans were 5 minutes long.
The velocity definition used was optical and corrected to the 
barycentric reference frame.

An example with commands used to calibrate the data is in gbtidl-commands.pro.


Directories:
   * data : contains the raw SDFITS data and its associated index and flag files.
   * logs : contains observing logs (generated using psum and getastridlog).
   * outputs : data products generated running gbtidl-commands.pro.