Table of Contents
1 Introduction.....................................................................................................7
1.1 What is Gpredict?.............................................................................................................7
1.2 Features of Gpredict......................................................................................................... 8
1.3 About this Document........................................................................................................8
1.4 Your Feedback is Appreciated..........................................................................................9
2 Getting Started with Gpredict.......................................................................11
2.1 The Basic Idea................................................................................................................ 11
2.2 The Module Pop-Up Menu..............................................................................................13
2.3 Configuring the Module..................................................................................................14
2.3.1 Setting Up the Ground Station................................................................................15
2.3.2 Selecting the Satellites............................................................................................16
2.3.3 Module Properties...................................................................................................17
2.4 Creating a New Module..................................................................................................19
2.5 Predicting Satellite Passes.............................................................................................19
2.5.1 Upcoming Passes for a Satellite..............................................................................19
2.5.2 The Sky at a Glance.................................................................................................20
2.6 Moving On...................................................................................................................... 21
3 Customising Gpredict....................................................................................23
3.1 Overview......................................................................................................................... 23
3.2 Number Formats ........................................................................................................... 25
3.2.1 Show Local Time Instead of UTC............................................................................25
3.2.2 Time Format............................................................................................................ 25
3.2.3 Geographical Coordinates.......................................................................................28
3.2.4 Measurement Units.................................................................................................28
3.3 Ground Stations.............................................................................................................. 28
3.4 TLE Update..................................................................................................................... 30
3.5 Message Logs................................................................................................................. 30
4 Modules and Views........................................................................................31
4.1 Data Fields...................................................................................................................... 31
4.2 Views.............................................................................................................................. 32
4.2.1 The List View........................................................................................................... 32
4.2.2 The Map View.......................................................................................................... 33
4.2.3 The Polar View........................................................................................................36
4.2.4 The Single-Satellite View........................................................................................39
4.2.5 The Upcoming Passes View.....................................................................................40
5 Advanced Pass Predictions............................................................................41
5.1 Customising the Prediction Parameters.........................................................................41
5.1.1 Pass Conditions.......................................................................................................41
5.1.2 Multiple Passes.......................................................................................................42
5.1.3 Single Pass.............................................................................................................. 44
5.2 Sky at a Glance............................................................................................................... 44
5.3 Communication Windows...............................................................................................45
5.4 The Advanced Predictor.................................................................................................45
6 Updating the Orbital Elements.....................................................................47
6.1 Overview......................................................................................................................... 47
6.2 Automatic Update from the Internet..............................................................................48
6.2.1 Auto-Update............................................................................................................ 48
6.2.2 Update from the Internet........................................................................................49
6.3 Semi-Automatic Update from Local Files.......................................................................50
6.4 Manual Update............................................................................................................... 50
7 Controlling Radios and Rotators...................................................................51
7.1 Overview......................................................................................................................... 51
7.2 Hamlib Tutorial............................................................................................................... 52