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Version 1.9 Build 1488

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dish.getvf - Function

	Package	dish
	Module	dish
	Tool	dish

Prints the velocity and frequency for a specified channel.

Synopsis
getvf(chan, dop, refframe)

Description
This function will print the value of the velocity and frequency for a specified channel (units of km/s and Hz) of the currently displayed spectrum.

Arguments

chan		channel of interest
		Allowed:	integer
		Default:	no default
dop		Doppler convention
		Allowed:	RADIO, OPTICAL or TRUE
		Default:	RADIO
refframe		Reference Frame
		Allowed:	LSRK, LSRD, BARY, GEO, TOPO or GALACTO
		Default:	LSRK

Returns
Boolean

Example

- d.getvf(1)
Channel  1     RADIO LSRK 1.40984264e+09 46301.7957
T 
- d.getvf(1,'OPTICAL','BARY')
Channel  1     OPTICAL BARY 1.40992869e+09 54737.4952
T