Expected Source Properties

One of the reasons for providing this information is to aid in technical assessment. All relevant items should be filled in or the project will not validate. This means that a continuum flux must be entered for a continuum project and a line flux and width must be filled in for a spectral line project. If full polarization is selected, at least one of the line or continuum polarization percentages must also be given.

If observing the sun, there will only be two choices:

To compensate for the sun's prodigious flux density, solar observations will often make use of a special observing mode known as mixer debiasing. Which mode will be used will depend on the level of solar activity and the frequency band.

The ALMA OT Team, 2024 May 21