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Introduction

This wiki contains specification of software dedicated to control cube satellite PWSat2. PWSat2 is design by group of students from Warsaw University of Technology (Politechnika Warszawska - www.pw.edu.pl). Students are members of Student Space Association (www.ska.pw.edu.pl, www.pw-sat.pl). Software that controls On-Board Computer (OBC) is developed in cooperation with Future Processing (FP - www.future-processing.com).

Aim of the project

The aim of project is to acquire skills and knowledge useful in the aerospace industry.

Scope of the document

In order to achieve the aim, there has been defined following mission assumptions:

The main objective of the mission is to test the deorbiting system,
the minor objective of the mission is to receive photos, which document the opening of deorbiting sail,
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Document purpose

This document was created to assist in the supervision of software development and to gather all the necessary information to develop and complete the project. Document provides specification for the construction of satellite and environment in which it will works. These informations should help to get familiar with space environment, people that want to get involved in. There are defined requirements for the satellite control system, testing and coding standards.

Document organization

In general, the document consists of four parts. The first part describes fundamentally the construction of the satellite and its subsystems and space environment. The second part describes the requirements for the process of creating, testing and documenting software. It describes a workflow of team members and determines the technology used. The third part contains a detailed description of the on-board computer and its relationship with subsystems. The content in this section is also functional and interface specifications. The fourth section sets out the plan for software testing. Functional and structural tests of classes, libraries, subsystem and coupled with each other subsystems.