\begin{table}%T1
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\caption{Transition region observing instruments (100--200~nm).}
\label{table:1}
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\small
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\begin{tabular}{llllllll}
\hline \hline
Instruments$^a$
     &  Type   & Wavelength  & ${\Delta \lambda}$ & ${\Delta x}$ & Science & FOV  & Status  \\
     &  & [nm] &  [pm]  & [arcsec] & & [arcsec] & \\
\hline
Sounding rockets & & & & & & &\\
%\hline
   SUMI   & Spectrograph & 155 \& 280        & 2 \& 5  & 1   & Magnetography        & 180  & Under\\
          &&& &&& &   Construction \\
   HRTS   & Spectrograph & 120-170           & 5       & 1   & Line profiles        & 1000 & Flown \\ 
   VAULT  & Spectrograph & 120-120           & 7       & 0.3 & Line profiles        & 3600 & Flown \\ 
   MSSTA  & Imager       & 155+14$\lambda$'s & 10~nm   & 1   & Multiple $\lambda$'s & 2000 & Flown \\ 
\hline
Orbiting missions & & & & & & &\\
%\hline
  SUMER & Spectrograph    & 39-161                        & 4-8   & 1.5 & Line profiles        & 300  & On orbit \\ 
  UVCS  & Spectrograph    & 49-150                        & 9-14  & 7   & Coronal lines        & 300  & On orbit \\ 
  TRACE & Imager          & 155, 160, 170 + 4$\lambda$'s  & 3.7~nm & 1   & Multiple $\lambda$'s & 510  & On orbit \\ 
  AIA   & Imager          & 160, 170 + 8$\lambda$'s       & 20~nm  & 1   & Multiple $\lambda$'s& 2460 & Under \\  
          &&& &&& &   Construction \\
\hline
\end{tabular}
Notation: SUMI= Solar Ultraviolet Magnetograph Instrument (MSFC); 
   HRTS=High Resolution Spectrograph (NRL); 
   VAULT=Very high Angular resolution Ultraviolet Telescope (NRL); 
   MSSTA=Multi-Spectral Solar Telescope Array(Stanford); 
   SUMER=Solar Ultraviolet Measurements of Emitted Radiation (SOHO/Lindau); 
   UVCS=Ultraviolet Coronal Spectrometer (SOHO/CfA); 
   TRACE=Transition Region and Coronal Explorer (SMEX/LMSAL); 
   AIA=Atmospheric Imaging Assembly (SDO/LMSAL); 
   $\Delta\lambda =$ spectral resolution, $\Delta x =$ spatial resolution.
\end{table}