Information for Astronomers
Information for Astronomers
This is an old revision of the document!
(Erstmal intern, bis alles ausgiebig getestet ist)
It is possible to change the TOPO modes via scripts. There are two different ways:
@tauto
, @tnorth
, or @tsouth
to load a TOPO item into the observing queue. When control
encounters one of these items, it will simply change the TOPO mode.TopoMode <TOPO>
(with one of AUTO, NORTH, SOUTH) to have control
change the TOPO. Note, that subsequent measurements won't switch back to the previous TOPO.Sometimes, it is desired to mix different types of measurement in a single script, e.g., pointings and position switches. In the normal case, ObsInp will interpret a script as of such a type, as the input tab which was used, e.g., if one would call a pointing script from the FSwitch tab, Obsinp would load the source as FSwitch.
To avoid this behavior, one can simply add the Form
keyword to the script, followed by the name of the input mask
3C123 ; Catalog Default ; CoordinateSystem Equatorial ; Equinox B1950 ; Help Defaults ; ObjectLatitude 29 34 14.0 " ; ObjectLongitude 04 33 55.2 s ; POINTcorr 1 ; SCANDirection Longitude/Latitude ; SCANLength -4 ; SCANRepeats 2 ; SCANRotation 0.0 ; SCANTime 30 ; Scanning_in Azimuth/Elevation ; ZigZag True; Form Pointing
(a pointing on 3C123)
3C48 ; Amplitude 0 ; Catalog Default ; CoordinateSystem Equatorial ; CosDrv No ; Equinox B1950 ; FreqThrowHi -4.0 ; FreqThrowLo 0 ; Help Defaults ; LatOff 0.0 ; LonOff -1d ; NRepeats 1 ; ObjectLatitude 52 26 13 " ; ObjectLongitude 14 09 33.5 s ; Offset_in CoordinateSystem ; SCANRepeats 1 ; SCANTime 120 ; SourceVelocity 0.0 ; StartPosAng 180 ; TrackParAng On ; VMode Fixed ; VelSystem VLSR; Form FSwitch
(an fswitch on 3C48)
Lets assume these scripts were saved in the files poitest
and fswtest
. Then one can call both from the same Script
@poitest @fswtest
Of course one can also set the receiver, frequencies and use different sources
FE: S110mm; VERn 1; Frequency 2.6 @poitest:3C295 @fswtest:3C295 FE: S110mm; VERn 1; Frequency 2.5 @poitest:3C295 @fswtest:3C295
Using the Form
keyword, one has also access to pointing and focus offsets.
3C48 ; Catalog Default; NULE 10; SetAbsolut Yes; Form PointingCorrection
Use SetAbsolut Yes
or SetAbsolut No
to set the value of the associated Combobox.
3C48 ; Catalog Default; ZLinear -10; QPosition 1; Form Focus_Offsets
QPosition 1
means, the focus offset will be put at the top of the queue, while QPosition 0
puts it to the current position (the latter being more useful in a script). Note, that one has to use a (dummy) source and catalog in the script.
Some devices can be configured via scripts, e.g., the current receiver (and version) can be changed, MultiFiBa and Filterbox can be configured:
# Receiver commands FE: P50mm; VERn 2; Frequency 6.0 FE: S110mm; VERn 1; Frequency 2.6 # MultiFiBa MF:S99128 MF:A03@100 # Filterbox FB:spare1 FB:spare2 # note: currently, only spare1/spare2 setups are possible, these also set certain bandwidths at the XFFTS, # so only use this if you know what you're doing!
A feature often used is to apply scripts to different sources. Although each script contains a source and catalog name (at least when created with ObsInp), one can call the script with a different source name, e.g. @poitest:3C48
. It is even possible to recursively use this feature. Assume you want to use the script
FE: S110mm; VERn 1; Frequency 2.6 @poitest:3C295 @fswtest:3C295 FE: S110mm; VERn 1; Frequency 2.5 @poitest:3C295 @fswtest:3C295
(lets call it masterscript
) on many sources. Then you just have to remove all source names from the script
FE: S110mm; VERn 1; Frequency 2.6 @poitest @fswtest FE: S110mm; VERn 1; Frequency 2.5 @poitest @fswtest
Now one can call @masterscript:W3MAIN
from any form, and it will correctly replace the sources. If it is called without source name, ObsInp will use the sources it finds in the root scripts (it doesn't work, if the masterscript still contains source names).