Keywords: flux

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## Use of W3OH as Flux Calibrator

W3OH has been extensively and intensively studied with the interferometer. Its flux is very well known between 84 and 115 GHz. Moreover its structure, partially resolved by the interferometer (except on short baselines) is easy to model. This is the reason why W3OH is observed about 10-15 minutes in CROSS-CORRELATION mode in all porjects. The command SOLVE FLUX takes now into account this model by comparing its flux to the predicted flux. This is very usefull to check that your flux determination is good. Check it by doing:

            CLIC\SET SOURCE W3OH
            CLIC\SET PROC CORR
            CLIC\FIND
            CLIC\SOLVE FLUX (On all cross-correlations)