Task: calred Purpose: Analyse flux densities of sources with poor phase stability Categories: uv analysis, plotting CALRED is a program used to analyse flux densities of sources where phase stability is poor. It uses either the amplitude of the data or an averaged triple product. Normally a point source model is assumed, but if a planet is found in the input, CALRED uses the model visibility for each baseline/channel to correct the calculations. CALRED produces a table with the following columns: Sca (mJy) - the scalar average fluxdensity estimate, calculated as the rms of the visibility amplitudes Vec (mJy) - the vector average fluxdensity estimate, not listed with options=triple Tri (mJy) - the triple product fluxdensity estimate, this is the cube root of the real part of the average of V12*V23*conj(V13) (note that this can be negative). Only listed with options=triple. Con - the confusion percentage, calculated from the ratio of the rms in the imaginary and real component of the triple ampl. The - the theoretical noise in mJy Act - the actual noise in mJy NCorr - the number of correlations contributing Key: vis The input visibility datasets. Several datasets can be given. Key: select Standard visibility selection. See help on select for more information. Key: line Standard visibility linetype. See the help line for more information. Key: stokes Normal Stokes/polaization selection. The default is to process all parallel-hand polarisation. Key: interval Seperate estimates of the various parameters are determined for data over an interval. This parameter gives the interval, in minutes. The default is 5 minutes. Key: options triple Do triple processing. nocal Do not perform gain calibration. nopol Do not perform polarisation calibration on the data. nopass Do not perform bandpass calibration on the data. norm Divide the noise estimates by the square root of the number of points. Revision: 1.11, 2021/11/20 23:24:20 UTC

Generated by miriad@atnf.csiro.au on 21 Nov 2021