The main routine in a pointing run is fivept which makes point-by-point cross scans on a source to determine offsets. It's usually called during a pointing run in the aquire procedure but can also be called manually. The syntax for fivept is as follows (taken from the documentation at /usr2/fs/help/fivept.___:

fivept=axis,rep,pts,stp,intp,dev,wait

and acquire calls fivept with the following options:

fivept=azel,-2,9,.4,9,1u,120

where:

• axis: The axis system for the scan (hadec, azel, xyns or xyew). For the 12m antennas it's azel
• rep: Number of repetitions: -10 to -1 and 1 to 10 allowed. Default is -2. Negative repetition counts are described in the fivpt manual. The absolute value implies a maximum repetitions count, but once the scans are well centered on both axes, additional repetitions will be skipped.
• pts: Number of points on each axis, if even, it is increased by 1. pts must be between -31 to -3 or 3 to 31, inclusive. Default is 7. Negative point counts cause the system temperature measurement to be skipped. The absolute value is used as the number of points.
• stp: Step size for distance between points, in multiples of a beamwidth. Default is 0.5.
• intp: Integration period, 1 to 32 seconds.
• dev: Mnemonic for the device to be used as the detector.
• wait: Seconds to wait for onsource for each point, 1-1200 seconds allowed, default 120.

fivept first attempts a scan in latitude (Elevation) and will show data for each of the sampled points (9 in the default case). At the end, a Gaussian with an underlying line is fit to the data. Typical output looks like this:

                                 N  Time    Offset     Amp    Err
2013.043.22:30:54.52#fivpt#lat   1  81050.  -0.3650    0.611  0.074 
2013.043.22:31:08.52#fivpt#lat   2  81064.  -0.2800    0.508  0.033 
2013.043.22:31:22.54#fivpt#lat   3  81078.  -0.1950    0.844  0.098 
2013.043.22:31:36.51#fivpt#lat   4  81092.  -0.1099    1.119  0.054 
2013.043.22:31:50.53#fivpt#lat   5  81106.  -0.0249    1.345  0.113 
2013.043.22:32:04.54#fivpt#lat   6  81120.   0.0601    0.679  0.093 
2013.043.22:32:18.54#fivpt#lat   7  81134.   0.1451    0.178  0.092 
2013.043.22:32:32.50#fivpt#lat   8  81148.   0.2301    0.014  0.054 
2013.043.22:32:46.50#fivpt#lat   9  81162.   0.3151   -0.151  0.048 
                                    Offset   Width   Amp     C       M        E_code
2013.043.22:32:46.50#fivpt#latfit  -0.04835  0.2266  1.0818  0.2310 -0.0065   4 
2013.043.22:32:46.50#fivpt#laterr   0.00792  0.0221  0.0778  0.0473  0.0008   0.0810