accum – Accumulate incremental calibration solutions into a calibration table – calibration task

Description

Accum will interpolate and extrapolate a calibration table onto a new table that has a regularly-space time grid.

The first run of accum defines the time grid and fills this table with the results from the input table.

Subsequent use of accum will combine additional calibration tables onto the same grid of the initial accum table to obtain an output accum table. See below for concrete examples.

Accum tables are similar to CL tables in AIPS Incremental tables are similar to SN tables in AIPS

Parameters

Title
Parameter	Default	Description
vis	`''`
tablein	`''`
incrtable	`''`
caltable	`''`
field	`numpy.array( [ ] )`
calfield	`numpy.array( [ ] )`
interp	`'linear'`
accumtime	`float(1.0)`
spwmap	`numpy.array( [ ] )`

Parameter Explanations

vis

''

Name of input visibility file

tablein

''

Input cumulative calibration table; use '' on first run

incrtable

''

Input incremental calibration table to add

caltable

''

Output (cumulative) calibration table

field

numpy.array( [ ] )

List of field names to process from tablein

calfield

numpy.array( [ ] )

List of field names to use from incrtable.

interp

'linear'

Interpolation mode to use for resampling incrtable solutions

accumtime

float(1.0)

Time-interval when create cumulative table

spwmap

numpy.array( [ ] )

Spectral window combinations to apply