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\subsubsection{Collecting Area}  We will use $A$ in this document as each array element collecting area (thus we could also write $\pi \cdot D^2$, with $D$ being the dish diameter).  \subsubsection{Efficiency}  We will use $\eta_a$ in this document as the antenna efficiency with $\eta_a \begin{equation}\label{eq:antenna_efficiency}  \eta_a  = \eta_{\text{surface efficiency}} \cdot \eta_{\text{aperture blockage}} \cdot \eta_{\text{feed spillover efficiency}} \cdot \eta_{\text{illumination taper efficiency}}$ efficiency}}  \end{equation}  (as defined in \cite{antenna}). \subsubsection{Quantity}  We will use $N$ in this document as the number of array elements.  \subsection{Pad Aspects} 
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\subsection{Correlator Aspects}  \subsubsection{Position}  \subsubsection{Efficiency}  We will use $\eta_c$ as correlator efficiency in this document, with $\eta_c(t_{int}) \begin{equation}\label{eq:antenna_efficiency}  \eta_c(t_{int})  = \frac{\text{correlator sensitivity}}{\text{sesitivity of a perfect analog correlator having the same } t_{int}}$ t_{int}}  \end{equation}  (as defined in \cite{sensitivity}). \cite{antenna}).  as defined in \cite{sensitivity}.  \section{Objectives}\label{sec:obj}  This section aims to include array performance objectives that might be influenced by design variables in \S~\ref{sec:var}.  \subsection{Brightness Sensitivity Limit} 
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