Self Calibration

From CASA Guides
Jump to: navigation, search


Temporary edit link

edit me in CASA Guides

Overview

If a target is sufficiently bright, it will be possible (and likely advantageous) to perform calibration on that source after, or perhaps in lieu of, applying calibration from a separate source. While simple in principle, there are subtleties to this approach as well -- for example, if you start with self-calibration and do not have any external phase calibration, absolute position information will be lost, and the source will be placed at the phase center. This and other effects are discussed below.

Using an external phase and amplitude source, then self-cal

Approaching with only self-cal

Possible pitfalls