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Single-source, single-field observations

That's the simplest case. The point source sensitivity in this case is

\begin{displaymath}
\ensuremath{\sigma_\ensuremath{\mathrm{Jy}}} = \frac{\ensur...
...athrm{pol}}}\,\ensuremath{\Delta t_\ensuremath{\mathrm{on}}}}}
\end{displaymath} (21)

where \ensuremath{\Delta t_\ensuremath{\mathrm{on}}} is the time spent on-source. It is related to the total elapsed telescope time \ensuremath{\Delta t_\ensuremath{\mathrm{tel}}} through:
\begin{displaymath}
\ensuremath{\Delta t_\ensuremath{\mathrm{on}}}= \frac{\ensu...
...mathrm{tune}}}}{\ensuremath{\eta_\ensuremath{\mathrm{tel}}}}
\end{displaymath} (22)

For single source projects, \ensuremath{\eta_\ensuremath{\mathrm{tel}}} is estimated to be about 1.6. Note that the exact value will depend on several parameters such as the number of calibrators and the distance between the source and the calibrator(s).



Gildas manager 2023-06-01