Operator`s manual

LST:06:00:00 /wait until LST 06:00:00, taking data, before proceeding to the
next line
2005:148:00:00:00 /wait until UT= yyyy:ddd:hh:mm:ss, before proceeding to the
next line
Example Set: Instructions can be set in order to perform an observation. The following set of
instructions will command the SRT to take 1420.4 MHz hydrogen spectra in 5 degree spacing
along a section of the galactic equator. The user must start data recording, unstow the telescope,
calibrate the receiver, set the observing frequency center and frequency scan and then repeat the
spectral line observations for ten points along the equator. Note: Allow a space between the colon
and the command
: record rotation.rad (Start data recording of file rotation.rad)
: galactic 206 20 (unstow and move to calibration position)
: freq 1419 (Off-hydrogen calibration frequency)
: calibrate
: freq 1420.4 4 (Set center frequency mode 4)
: galactic 205 0 (Move to first data point)
: galactic 210 0 (Next point)
: galactic 215 0
: galactic 220 0
: galactic 225 0
: freq 1419 ( Off-hydrogen calibration frequency)
: galactic 225 20 ( Calibration point)
: calibrate
: freq 1420.4 4 ( Set center frequency mode 4)
: galactic 230 0 ( Move to sixth data point)
: galactic 235 0 ( Next point)
: galactic 240 0
: galactic 245 0
: galactic 250 0
: roff ( End data recording)
If this input command file were named galactic.cmd, the user could initiate this observation by
clicking in the command text box:
galactic.cmd
The SRT will read each line in turn and report the current line read as green text in the message
board area. If, for example, the start time was 1400 Universal Time on March 15, 2002; and no
output file name was entered, the default OUTPUT file would automatically be written and
labeled 0414814.rad.
Where the file label is: yydddhh.rad
Information about the output data file can be found in section 1.6