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% Introduction.tex
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% SatNOGS Optical Unofficial Guide
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% Copyright (C) 2022, Jeff Moe
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% This document is licensed under the Creative Commons Attribution 4.0
% International Public License (CC BY-SA 4.0) by Jeff Moe.
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The SatNOGS Optical Unofficial Guide documents how to set up and run an
\gls{optical-ground-station} for the \gls{LSF}'s \gls{SatNOGS} network.

\section{Unofficial Guide Overview}
First,  an overview of the this text, then the \gls{LSF},
some of it's key projects, such as the \gls{SatNOGS} network.

Chapters:

% Perhaps more LaTeXy ref XXX
\begin{itemize}
  \item Satellites --- What are we looking at?
  \item Ground Stations --- How Earth talks to satellites and back.
  \item SatNOGS Optical Process Overview --- The big picture of what
   hardware and software is needed to set up an optical ground station
   for use on the distributed network.
  \item Hardware --- Details on appropriate hardware configurations,
   and example setups.
  \item Software --- A look at the myriad software related to satellites,
   and what works best at present for SatNOGS Optical.
  \item Acquire --- Convert photons to bits. Pointing a camera at the
   sky works.
  \item Solve --- Pictures of stars reveal the time and location of
   the photo. Plate solvers reviewed.
  \item Detect --- The plate solver says where the photo is,
   now detect if are there moving tracks that aren't stars that could
   be satellites.
  \item Identify --- With time, location, satellite detection, \glspl{TLE}
   are overlaid and compared with detected satellites.
   Satellite identification by computers and humans.
  \item Upload --- When ready, data will be pushed to the SatNOGS network.
  \item Support --- Where development is occurring and questions answered!
\end{itemize}


\section{Libre Space Foundation}
The \gls{LSF} supports
``free and accessible space for all, creating \gls{open-source} space technologies.''%
\footnote{\url{https://libre.space}}
\index{Open Source}

\begin{figure}[h!]
	\includegraphics[keepaspectratio=true,height=1.10\textheight,width=1.00\textwidth,angle=0]{lsf-web.png}
	\caption{Libre Space Foundation Website.}
	\label{fig:lsf-web}
	\index{Libre Space Foundation}
\end{figure}

Select \gls{LSF} projects:
\index{UPSat}

\begin{itemize}
  \item SatNOGS --- Global network of satellite ground stations \\
    \url{https://satnogs.org}
  \item UPSat --- First open source hardware and software satellite in the world \\
    \url{https://upsat.gr/}
\end{itemize}


\section{SatNOGS Network}
SatNOGS is the \gls{LSF}'s global network of satellite ground stations.

\begin{figure}[h!]
	\includegraphics[keepaspectratio=true,height=1.10\textheight,width=1.00\textwidth,angle=0]{satnogs-web.png}
	\caption{SatNOGS Website.}
	\label{fig:satnogs-web}
	\index{SatNOGS}
\end{figure}


\section{Network Status}
The SatNOGS \gls{RF} network has been running successfully for years.
Adding an optical network is a new development. At present there
are zero nodes on the network.

Some software already exists,
some is being ported from C to Python, and other parts remain to be done.
There is software available for acquiring optical data of satellites.
There is no facility at present for pushing data back to the network.