Communications satellite constellations

Starlink is a satellite internet constellation operated by Starlink Services, LLC, an international telecommunications provider that is a wholly owned subsidiary of American aerospace company SpaceX, providing coverage to around 150 countries and territories. It also aims to provide global mobile broadband. Starlink has been instrumental to SpaceX's growth.

series of multipurpose geo-stationary satellites launched by ISRO

satellite constellation providing voice and data coverage

IRIS² (Infrastructure for Resilience, Interconnectivity and Security by Satellite) is a planned multi-orbit satellite internet constellation to be deployed by the European Union by 2027. Initial government services are expected to start in 2030. IRIS² will consist of 264 satellites in low Earth orbit (LEO), at an altitude of 1,200 km, and 18 satellites in medium Earth orbit (MEO), at 8,000 km.

Qianfan (), officially known as the Spacesail Constellation and also referred to as G60 Starlink, is a planned Chinese low-Earth orbit satellite internet megaconstellation to create a system of worldwide internet coverage. It was created by Shanghai Spacecom Satellite Technology (SSST), a firm backed by the Shanghai Municipal People's Government and the Chinese Academy of Sciences. The project was started in 2024 as a rival to the Starlink satellite constellation installed by SpaceX, and plans to be constituted of over 15,000 satellites by the project's end.

Amazon's satellites and space-based systems project

Gorizont (, ), GRAU index 11F662, was a series of 35 Russian, previously Soviet, geosynchronous communications satellites launched between 1978 and 2000. The program 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. Following this, the Gorizont system was integrated into the YeSSS Unified Satellite Communication System, and was used to relay both civilian and military communications. From 1988 onwards, the satellites were also used in support of the Okean program.

network of communication satellites and ground stations

The GSAT (Geosynchronous Satellite) series is a family of Indian communications satellites, indigenously developed and operated by the ISRO. The prorgamme was initiated in the early 2000s to create indigenous, multi-purpose, geostationary spacecrafts capable of supporting India's growing needs in telecommunications, broadcasting, broadband, emergency management, reconnaissance and navigation. The programme was supported by the development of Geosynchronous Satellite Launch Vehicle.

defense satellite communications project

United States military communications satellite constellation

Ekspress ( meaning Express), is a series of geostationary communications satellites owned by Russian Satellite Communications Company (RSCC). The first satellite of this kind was launched on 13 October 1994. The satellites are produced by the company Information Satellite Systems Reshetnev (ISS Reshetnev).

network of communications satellites and ground stations used

Tianlian (Simplified Chinese: 天链, Traditional Chinese: 天鏈, English: Sky Link) also known as CTDRS, is a Chinese data relay communication satellite constellation. The constellation serves to relay data from ground stations to spacecraft and rockets, most significantly China's crewed spaceflight program. The system currently consists of ten satellites in two generations, with the first satellite being launched in 2008.

O3b is a satellite constellation in Medium Earth orbit (MEO) owned and operated by SES, and designed to provide lower-latency broadband connectivity to remote locations for mobile network operators and internet service providers, maritime, aviation, and government and defence. It is often referred to as O3b MEO to distinguish these satellites from SES's O3b mPOWER constellation.

ChinaSat () is the brand name of communications satellites operated by China Satellite Communications.

defense satellite communications project

family of communications satellites

Guowang (), officially Satellite Internet Series Satellites () is a Chinese low-Earth orbit satellite internet megaconstellation to create a system of worldwide internet coverage. It was created by China Aerospace Science and Industry Corporation (CASIC), a state-owned enterprise backed by the Chinese Academy of Space Technology (CAST). The project was started in 2022 as a rival to the Starlink satellite constellation installed by SpaceX, and plans to be constituted of over 13,000 satellites by the project's end.

SpaceX satellite series aimed at government customers

set of communications satellites

computer network architecture based on orbital satellites