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\large
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\centerline {\bf 2.12\_V2.1 HRMA FLUX TRANSFER STANDARD SOURCES MEASUREMENTS }
\vspace{0.25in}

\normalsize
\noindent{\it Last Revised: August 10,1999}\\
\noindent{\bf Filename: hrma\_fcm} \\

\noindent {\bf BRIEF FUNCTIONAL DESCRIPTION:} \\
\normalsize
The HRMA Flux Transfer Standard (FTS) sources were used during the
XRCF phase of the mission to provide a baseline to compare against to
identify any contaminants which may have built up on the HRMA since
XRCF.  The XRCF measurements produced a total of $\sim8$~hr of
integration time, so we will plan to integrate twice as long on-orbit.
The sources are on the inside of the Forward Contamination Cover
(FCC), so the Aft Contamination Cover (ACC) must be open for ACIS to
see the sources. The focal plane temperature at XRCF was -109.2~C, so
this procedure will set that same temperature in order to facilitate
the comparison. The procedure configures and executes science runs
with ACIS-I and ACIS-S.


\vspace{0.25in}
\noindent The sequence of actions will be: 
\be
\item warm boot and start DEA HKP if necessary
\vspace{-0.10in}
\item set the focal plane temperature to -109.2~C
\vspace{-0.10in}
\item configure the instrument to collect imaging array data
\vspace{-0.10in}
\item execute the science run including a dump of the complete configuration information
\vspace{-0.10in}
\item configure the instrument to collect spectroscopy array data
\vspace{-0.10in}
\item execute the science run including a dump of the complete configuration information
\vspace{-0.10in}
\item return to thermal standby state if necessary
\ee


\vspace{0.15in}
\normalsize
\noindent {\bf ASSUMED INSTRUMENT STATE:} \\
\normalsize
Assumes the ACIS door is open. \\
Assumes the instrument is in the canonical thermal standby state.\\
Assumes the standard patches are loaded.\\

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\normalsize
\noindent {\bf SPECIAL INITIAL CONDITIONS:} \\
\normalsize
Assumes the Aft Contamination Cover is open. \\

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\normalsize
\noindent {\bf OPERATIONAL CONSTRAINTS/CAUTIONS:} \\
\normalsize


\vspace{0.15in}
\normalsize
\noindent {\bf REFERENCES:} \\
\normalsize

\normalsize
\noindent {\bf CHANGE HISTORY:} \\
\normalsize

{\bf V1.2}
\begin{itemize}
\item changed filenames from ``ccd\_fcm'' to ``hrma\_fcm''
\end{itemize}

{\bf V1.3}
\begin{itemize}
\item changed step 1 to include an optional warm boot and start DEA
HKP run
\item added step 2 to set the focal plane temperature to -109.2~C
\item edited step 3 to power up the FEPs and imaging video boards with
the command ``WSPOW0CF3F''
\item edited step 4 to put the dumps after the start science run command
\item added step 5 to power up the FEPs and spectroscopy video boards with
the command ``WSPOW3F03F''
\item edited step 6 to put the dumps after the start science run command
\item added step 7 to return to thermal standby state if necessary
\end{itemize}

{\bf V2.0}
\begin{itemize}
\item ACIS Team signed-off version
\item changed expected version number of flight SW to either 26 or 27
since either would be acceptable
\item changed expected value of ``1STAT7ST'' in step 1.6
\item changed time required for step 2.3 to 20~m
\item changed comment in ``Description'' field of step 6.2 to
``S0--S5'' in step 6.2
\item added step 7 to set the focal plane temperature to -120~C and
step 8.4 to monitor the focal plane temperature
\end{itemize}

{\bf V2.1}
\begin{itemize}
\item changed SW command mnemonic in step 4.1 to ``WT00170014'' from
``WT000A6014''
\item changed SW command mnemonic in step 6.1 to ``WT00172014'' from
``WT000C2014''
\end{itemize}

\newcommand{\tablecaptiontext}{HRMA Flux Transfer Standard Sources Measurement}
\input{hrma_fcm.tab}

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