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atmosphere.getNonDispersivePhaseDelay - Function

4.1.1 get the integrated zenith H2O Atmospheric Phase Delay (Non-Dispersive part)


Description

Get the integrated zenith H2O Atmospheric Phase Delay (Non-Dispersive part) for the current conditions, for channel number nc of spectral window spwid.

Arguments





Inputs

nc

Channel number (0-based; defaults to reference channel)

allowed:

int

Default:

-1

spwid

Int standing for spectral window id (0-based). The value must be >= 0.

allowed:

int

Default:

0

Returns
Quantity

Example

 
 
w = at.getUserWH2O()  
numSpw = at.getNumSpectralWindows()  
for spwid in range(numSpw):  
        numCh = at.getNumChan(spwid)  
        print "Spectral window ", spwid, " has ", numCh, " frequency channels"  
        for n in range(numCh):  
                freq = at.getChanFreq(n, spwid)  
                print "Total Dispersive Phase Delay at ", freq[’value’][0], freq[’unit’], " for 1.0 air mass: ",\  
                      (at.getDispersivePhaseDelay(n,spwid)[’value’][0])/(w[’value’][0])," degrees per mm of water vapor (",\  
                      ((100*at.getDispersivePhaseDelay(n,spwid)[’value’][0])/(w[’value’][0]))/(at.getNonDispersivePhaseDelay(n,spwid)[’value’][0]/w[’value’][0]),\  
                      "% of the Non-dispersive one )"  
 
 

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