4.1.1.0 atmosphere.getDispersivePhaseDelay

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atmosphere.getDispersivePhaseDelay - Function

4.1.1 get the integrated zenith H2O Atmospheric Phase Delay

Description

Get the integrated zenith H2O Atmospheric Phase Delay (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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