| Major contractors | NPO PM/Reshetnev |
|---|---|
| Carrier rocket | Proton-K/DM Proton-K/DM-2 |
| Launch site | Baikonur |
| Mission duration | 3 year design life |
| Mass | 2,110kg |
| Orbital elements | |
| Regime | Geostationary |
Gorizont, (Russian: Горизонт, Horizon), GRAU index 11F662, is a series of 35 Russian, previously Soviet, geosynchronous communication satellites launched between 1978 and 2000. The programme was started in order to develop a satellite system to relay coverage of the 1980 Olympic Games from Moscow. The first four satellites were originally launched for this sole purpose.[1] Following this, the Gorizont system was integrated into the YeSSS Unified Satellite Communication System,[1] and used to relay both civilian and military communications. From 1988 onwards, the satellites were also used in support of the Okean programme.[1]
Gorizont satellites are based on the KAUR-3 satellite bus, which provides three-axis stabilisation, and liquid manoeuvring engines.[1]