This is page https://mrt-lx1.iram.es/mainWiki/TelescopeControlWithoutMovingAntenna , moderated by WB.
Telescope Control without Moving Antenna
Some observing modes can be used without moving the antenna, There are two possibilities:
Use Telescope Control in "Special Mode"
last checked: 2009-10-07 (wb,hu)
You can restart the telescope control in a special mode that does not send any command to [AntennaMountDrive] .
For those observing modes where the duration of a subscan is controlled by AntennaMountDrive, the duration is fixed to 30 sec.
In order to use this special mode, do under account mrt@mrt-lx1:
cdCoordinator # set def directory ./goKill # stop current control processes export ncsAntennaMDOffline=yes # set environment variable ncsAntennaMDOffline to anything you like ./go
To get back to normal observations with antenna mount drive:
./goKill unset ncsAntennaMDOffline ./go
if the offline mode is used, a NCS warning is generated during antCS.py restart (go). In case offline is wanted ignore the warning. See also AntennaControlSystemMessages
- you can also force the "unset" restarting the xterm used for ./go .
Using the offline mode, the secondary axes have to be in state computer accept otherwise you might get a timeout and warning message.
Put Axes in "Manual Control Mode"
Anchor(ManualControl Another possiblity is that the operator puts the control of axes az,el in manual mode. This mode does NOT require export ncsAntennaMDOffline=yes In this case, only observing modes that do not need antennaMD for their synchronization can be used. The only observing mode currently possible is a calibration without sky.
Bolometer absorber maps
Put the telescope control in the "special mode" described above.
Don't forget to remove completely the absorber (one part can be left inside) to start astronomical observations.
This is page https://mrt-lx1.iram.es/mainWiki/NcsMrtOperatorGuide, moderated by WB