2.3.1.0 imager.setvp

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imager.setvp - Function

2.3.1 Set the voltage pattern model for subsequent processing

Description

Set the voltage pattern model (and hence, the primary beam) used for a telescope. There are currently two ways to set the voltage pattern: by using the extensive list of defaults which the system knows about, or by creating a voltage pattern description with the vpmanager. The default voltage patterns include both a high and a low frequency VP for the WSRT, a VP for each observing band at the AT, several VP’s for the VLA, including the appropriate beam squint for each observing band, and Gaussian for the BIMA dishes. Due to temporary limitations in the internal structure of the visibility buffer, only one telescope’s voltage pattern can be applied to a particular MeasurementSet. This will be corrected shortly.

Arguments


Inputs
dovp	Do voltage pattern (ie, primary beam) correction
	allowed:	bool
	Default:	false
usedefaultvp	Look up the default VP for this telescope and frequency?
	allowed:	bool
	Default:	true
vptable	If usedefaultvp is False, provide a VP Table made with vpmanager
	allowed:	string
	Default:
dosquint	Activate the beam squint in the VP model
	allowed:	bool
	Default:	false
parangleinc	Parallactice angle increment for squint application
	allowed:	any
	Default:	variant 360deg
skyposthreshold	Sky position threshold
	allowed:	any
	Default:	variant 180deg
telescope	Which default telescope to use; if empty use the one in encoded in MS
	allowed:	string
	Default:
verbose	If false, suppress some messages from being sent to the logger.
	allowed:	bool
	Default:	true

Returns
bool

Example

im.setvp(dovp=True, usedefaultvp=True, dosquint=False)

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