forked from spacecruft/SNOUG
.fits.png example
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104c5ee522
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@ -123,3 +123,39 @@ Sample data from \texttt{.cat} file, just the top select lines of a 1,033 line f
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786.5237 1.8174 6.0213 98.05751 27.88283 16.09418
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...
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\end{minted}
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\subsection{\texttt{.fits.png} FITS PNG Files}
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\index{FITS}\index{PNG}\index{stvid}
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The \texttt{stvid} application can generate multiple \gls{PNG} files,
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depending how many satellites it finds. In every case it creates at
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least one \gls{PNG} file, with a name like:
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\texttt{2022-08-23T04:16:26.633.fits.png}
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In this image, as can be see in figure \ref{fig:stvid-png}, page \pageref{fig:stvid-png},
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no detected satellites are indicated.
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The blue lines are from the ``Catalog'', which in this case means \glspl{TLE}.
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The blue lines are drawn whether no, a few, or many satellites are detected.
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They are generated by taking data from the \gls{plate-solver} about where the picture
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\gls{FOV} is, and overlaying satellite \glspl{orbit} that are calculated from
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\glspl{TLE}.
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The main blue line is slightly offset from where the satellite is calculated to
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appear.
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The blue line forms a small \texttt{L} shape.
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The smaller segment indicates the area where the satellite may pass.
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Next to the small segment line is the \gls{NORAD ID} for the satellite.
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If it is unknown, it will be given the number 90000 or larger.
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\begin{figure}[p!]
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\begin{center}
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\includegraphics[keepaspectratio=true,height=1.00\textheight,width=1.00\textwidth,angle=0]{stvid/data/2022-08-23T04:16:26.633.fits.png}
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% \includegraphics[keepaspectratio=true,height=1.00\textheight,width=1.00\textwidth,angle=0]{stvid/data/2022-08-23T04:16:26.633.fits.png}
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\caption{\texttt{stvid} PNG.}
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\label{fig:stvid-png}
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\index{stvid}\index{PNG}\index{FITS}
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\end{center}
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\end{figure}
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