forked from spacecruft/SNOUG
stvid tracks on PNGs
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@ -148,9 +148,9 @@ 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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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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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{figure}[h!]
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\begin{center}
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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=0.80\textheight,width=0.80\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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\caption{\texttt{stvid} PNG.}
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\label{fig:stvid-png}
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\label{fig:stvid-png}
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\index{stvid}\index{PNG}\index{FITS}
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\index{stvid}\index{PNG}\index{FITS}
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@ -158,7 +158,7 @@ If it is unknown, it will be given the number 90000 or larger.
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\end{figure}
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\end{figure}
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\subsection{\texttt{.fits.png} FITS PNG Files}
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\subsection{\texttt{catalog.png} catalog PNG Files}
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\index{FITS}\index{PNG}\index{stvid}\index{NORAD ID}
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\index{FITS}\index{PNG}\index{stvid}\index{NORAD ID}
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When \texttt{stvid} identifies a satellite, it creates a new \gls{PNG} file for each
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When \texttt{stvid} identifies a satellite, it creates a new \gls{PNG} file for each
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satellite detected in the image. A file name example follows, with satellite
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satellite detected in the image. A file name example follows, with satellite
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@ -167,13 +167,49 @@ NORAID ID 48473 detected, also shown in figure
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\texttt{2022-08-23T04:16:26.633\_48473\_catalog.png}
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\texttt{2022-08-23T04:16:26.633\_48473\_catalog.png}
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\begin{figure}[p!]
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\begin{figure}[h!]
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\begin{center}
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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_48473_catalog.png}
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\includegraphics[keepaspectratio=true,height=0.80\textheight,width=0.80\textwidth,angle=0]{stvid/data/2022-08-23T04:16:26.633_48473_catalog.png}
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\caption{\texttt{stvid} PNG of satellite NORAD ID 48473 indentified, in red.}
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\caption{\texttt{stvid} PNG of the satellite track of NORAD ID 48473 identified in red.}
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\label{fig:stvid-png-48473-catalog}
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\label{fig:stvid-png-48473-catalog}
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\index{stvid}\index{PNG}\index{FITS}\index{NORAD ID}
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\index{stvid}\index{PNG}\index{FITS}\index{NORAD ID}
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\end{center}
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\end{center}
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\end{figure}
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\end{figure}
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If multiple satellites are detected in the image, they will each get a \gls{PNG} file.
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For the example image, a satellite with \gls{NORAD ID} 52718 was also identified.
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The file name is:
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\texttt{2022-08-23T04:16:26.633\_52718\_catalog.png}
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\begin{figure}[h!]
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\begin{center}
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\includegraphics[keepaspectratio=true,height=0.80\textheight,width=0.80\textwidth,angle=0]{stvid/data/2022-08-23T04:16:26.633_52718_catalog.png}
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\caption{\texttt{stvid} PNG of the satellite track of NORAD ID 52718 identified in red.}
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\label{fig:stvid-png-52718-catalog}
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\index{stvid}\index{PNG}\index{FITS}\index{NORAD ID}
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\end{center}
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\end{figure}
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\subsection{\texttt{unid.png} Unidentified PNG Files}
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\index{FITS}\index{PNG}\index{stvid}\index{NORAD ID}
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As shown previously, \texttt{stvid} will create a new \gls{PNG} with a
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red line when it identifies a satellite.
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When \texttt{stvid} finds a track it can't identify in the
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\gls{TLE} catalogs, it gives it a \gls{NORAD ID} starting with 90000,
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incrementing by one.
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See figure \ref{fig:stvid-png-90000-unid}, page \pageref{fig:stvid-png-90000-unid},
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for an example of \texttt{stvid} marking an unidentified track red.
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In this case, the track was created by an airplane, but \texttt{stvid} would
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do the same with an unknown satellite track.
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\index{airplane}
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\begin{figure}[h!]
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\begin{center}
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\includegraphics[keepaspectratio=true,height=0.80\textheight,width=0.80\textwidth,angle=0]{stvid/data/2022-08-23T04:16:26.633_90000_unid.png}
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\caption{\texttt{stvid} PNG of an unidentified track in red.}
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\label{fig:stvid-png-90000-unid}
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\index{stvid}\index{PNG}\index{FITS}\index{NORAD ID}
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\end{center}
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\end{figure}
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