This chapter describes the various data-taking programs available for use with the 14 meter telescope, the combination of previously defined and new keywords required to utilize them, and examples of their use. Table 4.1 lists the programs available to the user and the keywords that are needed to display the parameters related to each type of observation. The remainder of this section will introduce keywords that affect all of the data-taking routines and will discuss the events that can cause data-taking to pause.
The following keywords are used to initiate or terminate the data-taking routines listed in column 1 of Table 4.1.
Terminating FIVE or MAP with either STOP or END clears all offsets to their state just prior to initiation of the data-taking procedure. The keyword RESULTS followed by a device identifier, will direct printed output from some routines in the continuum mode to a device (for example, five point mapping results from program FIVE or position switching on-off measurements from PS or CAL ).
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| Keyword | Available Modes | Remarks |
| CAL | CONT, SPEC | Channel by channel Filterbank |
| DPS | CONT, SPEC | Double position switching |
| FIVE | CONT, SPEC | Five point map |
| FS | SPEC | Frequency switching |
| MAP | CONT, SPEC | Raster scan maps |
| APOINT | CONT, SPEC | Automatic Pointing and Focusing |
| OFF | CONT, SPEC | Off-source tracking and data-taking |
| ON | CONT, SPEC | On-source tracking and data-taking |
| PS | CONT, SPEC | Position switching |
| PLSW | SPEC | Polarization switching |
Entering one of the above keywords causes the keywords and parameters relevant to that type of observation to appear on the screen 1 display so that parameters can be changed if desired. In continuum mode, these routines print out information which must be directed to a device designated with the keyword RESULTS (device code).