Gildas Tips & Tricks

Gildas/Clic

• Change the bandpass calibrator :

let band_source "sourcename" after clicking on select
180 degree Jumpy Phase :
set phase degree jumpy
PLOT /IDENTIFY col
SOLVE phase /PLOT

• Change the number of time interval for spline interpolation :

SET STEP 4 (in hours, default 3)

• Make polynomial phase fit instead of spline :

SOLVE phase /PLOT /POLYNOMIAL 6

• Remove the last drawn plot layer :

CLEAR seg
Plot the closure relations :
PLOT closure

• Change the averaging in time when plotting :

SET AVERAGING none
SET AVERAGING TIME 5 (seconds)

• Change the reference antenna for RF and phase calibration :

SET REFERENCE x (logical number)

• See the correspondance physical/logical antenna :

SET ANTENNA ALL

Gildas/Mapping

• Reproject one image to another :

run reproject