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simulator.setfield - Function

2.4.1 Set one or more observed fields


Description

Set one or more observed fields, including name, coordinates, calibration code. Can be invoked multiple times for a complex observation. Must be invoked at least once before observe.

If the distance to the object is set then the phase term includes a curvature for the near-field effect at the center of the image.

Arguments





Inputs

sourcename

Name of source or field (must be specified)

allowed:

string

Default:

SOURCE

’unknown’

sourcedirection

Direction Measure of Coordinates of source to be observed. E.g me.direction(’J2000’, ’30.5deg’,’-20.2deg’).

allowed:

any

Default:

variant

calcode

Calibration code

allowed:

string

Default:

’OBJ’

distance

Distance to the object

allowed:

any

Default:

variant 0m

Returns
bool

Example

 
 
    sm.setconfig(telescopename=’VLA’, x=xx, y=yy, z=zz, dishdiameter=diam,  
                 mount=’alt-az’, antname=’VLA’,  
                 coordsystem=’local’, referencelocation=dm.observatory(’vla’));  
 
    sm.setspwindow(spwname=’XBAND’, freq=’8GHz’, deltafreq=’50MHz’,  
                   freqresolution=’50MHz’, nchannels=1, stokes=’RR  
                   LL’);  
    dir0 = me.direction(’B1950’,  ’16h00m0.0’, ’50d0m0.000’)  
    sm.setfield(sourcename=’SIMU1’, sourcedirection=dir0);  
    sm.observe(’SIMU1’, ’XBAND’, integrationtime=’10s’, usehourangle=T,  
               starttime=’0s’, stoptime=’3600s’,  
    referencetime=reftime);  
 
 

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