\begin{table}[t]\footnotesize
\begin{center}
\begin{tabular}{|l|p{3.7cm}|p{4.3cm}|p{3cm}|p{1.5cm}|}
\hline
\hline
\hline
\multicolumn{5}{|c|}{\textbf{GGonGround goal}} \\
\hline
\hline
\hline
  &Differential acceleration between test masses       &$a \, [\rm{ms^{-2}}]$                         &$r=a\frac{T_d^2}{4\pi^2}\, [{\rm m}]$&Integration time\,[$\rm d$]\\
  &$a$~@~$1.7\cdot10^{-4}\, \rm Hz$                     &                                                    &                &      \\
\hline
\hline
{\bf GG goal in space}      &$a_{GG}=\eta g(h)$                                   &$8\cdot10^{-17}$                                     &$6\cdot10^{-13}$&$1$      \\
                    &(upconverted to $1\,\rm Hz$)                         &($\eta=10^{-17}\, ,\, h\simeq600\, \rm km$)            &($T_d\simeq540\,\rm s$)    &       \\
\hline
\hline
{\bf GGonGround}   &$a_{GGG}=10 a_{GG}$                                &$8\cdot10^{-16}$                                    &$3.3\cdot10^{-14}$  &$30$    \\
{\bf goal}          &(upconverted to $0.2\div 3\,\rm Hz$)                 &                                                    &($T_d\simeq40.5\,\rm s$)    &       \\
\hline
\hline
\hline
\end{tabular}
\begin{tabular}{|l|l|p{2.3cm}|p{1.8cm}|p{2.5cm}|p{4.7cm}|}
\hline
\multicolumn{6}{|c|}{\textbf{GGonGround noise budget @~$1.7\cdot10^{-4}\, \rm Hz$}} \\
\hline
Noise Source &$\Delta  a$                                   &Integrated $\Delta a$   &$\Delta  r$                             & Integrated $\Delta  r$ & Conditions\\
             &                                              &($T_{int}=30$~days)      &($T_{d}\simeq40$~s)                     &($T_{int}=30$~days)     &           \\
             &$[10^{-13}\frac{\rm{ms}^{-2}}{\sqrt{\rm{Hz}}}]$ &$[10^{-16}\rm{ms}^{-2}]$ &$[10^{-11}\frac{\rm{m}}{\sqrt{\rm{Hz}}}]$ & $[10^{-14}\rm{m}]$     &           \\
\hline
\multicolumn{6}{|l|}{Tilt noise sources: $a_{tilt}=\frac{k_c}{mgL}\frac{k_{shaft}}{M_{tot}gL_{shaft}}g\theta_{tilt}$} \\
\hline
terrain          & 8.2&5.1 &3.3 &2.1 & $\theta_{terrain}\simeq8\cdot10^{-6}\, \frac{\rm{rad}}{\sqrt{\rm{Hz}}}$\\
\cline{1-5}
air bearing      &4.1 &2.5 &1.7 &1.0 & $\theta_{ab}\simeq4\cdot10^{-6}\, \frac{\rm{rad}}{\sqrt{\rm{Hz}}}$\\
                 &    &    &    &    & $k_c\simeq k_{shaft}\simeq0.04\, \rm Nm/rad$ \\
                 &    &    &    &    & $m=10\,\rm kg$  $L=0.5\,\rm m$ \\
                 &    &    &    &    & $M_{tot}\simeq80\,\rm kg$ $L_{shaft}\simeq4\,\rm m$\\
\hline
\multicolumn{6}{|l|}{Thermal noise sources} \\
\hline
suspensions      &1.3 &0.8 &0.5 &0.3 & internal damping, $\nu_{s}=0.2$~Hz\\
\hline
eddy currents    &1.3 &0.8 &0.5 &0.3 & no magnetic shield\\
\hline
residual gas     &0.5 &0.3 &0.2 &0.1 & 2 cm gap, $\rm{P}=10^{-6}$~mBar\\
\hline
\multicolumn{6}{|l|}{ReadOut noise: $a_{ROnoise}=4\pi^2 r_{ROnoise}/T_{d}^2$} \\
\hline
laser gauge      &7.4 &4.6 &3.0 &1.8 & $T_{d}\simeq40$~s\\
\hline
\bf{Total}       &12 &7.4 &4.8  &3.0 & \\
\hline
\end{tabular}
\label{tab:GGGErrorBudget1}
\caption{GG on Ground Goal and Noise Budget}
\end{center}
\end{table}