PROLOGUE

Luboš Perek

The main aim of the website www.geostationary.cz is to study the relation between active spacecraft in the geostationary orbit and radio networks notified in the same orbit by the International Telecommunication Union in the Master International Frequency Register. The reader is invited to peruse the file „Actual Occupation of the Geostationary Orbit” which refers to the situation in March to June 2012 and contains an explanation of the tables. Since the situation changes with time, updated versions of tables and diagrams will be appended in the following sections as soon as feasible after the nominal dates:

• Section 1. Comparison Table of Space Networks and Satellites (from TLE and ISON), version of February 12, 2017
  
• Section 2. GEO Satellites in a short time period (from the NASA TLE) Diagrams, Lists of Satellites, and Lists of Satellites arranged according to longitude, Version of 2023, March 16.
• Section 3. The archive of GEO Satellites in a short time period (from the NASA TLE)