Iridium NEXT

Iridium NEXT
Name	Iridium NEXT
Country	United States
Organization	Iridium Communications
Launch date	2017-2021
Launch vehicle	SpaceX Falcon 9
Launch site	Vandenberg Space Force Base
Constellation size	66
Orbit	Low Earth orbit

Iridium NEXT is a second-generation global satellite constellation developed by Iridium Communications to provide L-band communications services, including mobile satellite communications and machine-to-machine Internet of Things connectivity, in partnership with Thales Alenia Space, Northrop Grumman, and SpaceX. The constellation is designed to replace the original Iridium constellation, which was launched in the late 1990s by Motorola and Lockheed Martin. The development of Iridium NEXT involved collaboration with various organizations, including NASA, European Space Agency, and Canadian Space Agency. The project also received support from U.S. Department of Defense, Federal Communications Commission, and International Telecommunication Union.

Introduction

Iridium NEXT is a complex system that consists of 66 operational satellites, as well as six spare satellites, which are designed to provide global coverage and ensure continuity of service. The constellation is equipped with advanced L-band transponders, which enable communication services such as voice, data, and Internet of Things connectivity. The system is also compatible with various satellite phones, including those manufactured by Motorola Solutions, Thales, and Hughes Network Systems. Iridium NEXT has partnerships with several organizations, including Amazon Web Services, Microsoft Azure, and IBM Cloud, to provide cloud-based services and support Internet of Things applications. The system also supports search and rescue operations, in collaboration with Cospas-Sarsat, National Oceanic and Atmospheric Administration, and European Organisation for the Exploitation of Meteorological Satellites.

History

The development of Iridium NEXT began in the early 2000s, when Iridium Communications started planning for a next-generation satellite constellation. The company partnered with Thales Alenia Space to develop the new satellites, which were designed to provide improved performance and capacity compared to the original Iridium constellation. The project involved collaboration with various organizations, including NASA Jet Propulsion Laboratory, European Space Agency, and Canadian Space Agency. The development of Iridium NEXT was supported by U.S. Department of Defense, Federal Communications Commission, and International Telecommunication Union. The project also received funding from private equity firms, including MatlinPatterson and Cerberus Capital Management.

Spacecraft_Description

Each Iridium NEXT satellite is equipped with a L-band transponder, which provides communication services such as voice, data, and Internet of Things connectivity. The satellites are designed to operate in Low Earth orbit, at an altitude of approximately 780 kilometers, and have a lifespan of up to 15 years. The spacecraft are built by Thales Alenia Space and Northrop Grumman, and are based on the ELiTeBus platform. The satellites are powered by solar panels and have a mass of approximately 860 kilograms. The system is designed to be compatible with various satellite phones, including those manufactured by Motorola Solutions, Thales, and Hughes Network Systems. Iridium NEXT also supports search and rescue operations, in collaboration with Cospas-Sarsat, National Oceanic and Atmospheric Administration, and European Organisation for the Exploitation of Meteorological Satellites.

Launch_and_Deployment

The Iridium NEXT satellites were launched by SpaceX using the Falcon 9 rocket, with the first launch taking place on January 14, 2017, from Vandenberg Space Force Base. The launches were conducted in eight batches, with the final launch taking place on January 11, 2019. The satellites were deployed into Low Earth orbit, at an altitude of approximately 780 kilometers, and were positioned to provide global coverage. The launch and deployment of Iridium NEXT involved collaboration with various organizations, including NASA, European Space Agency, and Canadian Space Agency. The project also received support from U.S. Department of Defense, Federal Communications Commission, and International Telecommunication Union.

System_Capabilities

Iridium NEXT provides a range of communication services, including voice, data, and Internet of Things connectivity. The system is designed to support machine-to-machine communications, as well as search and rescue operations, in collaboration with Cospas-Sarsat, National Oceanic and Atmospheric Administration, and European Organisation for the Exploitation of Meteorological Satellites. The system is also compatible with various satellite phones, including those manufactured by Motorola Solutions, Thales, and Hughes Network Systems. Iridium NEXT has partnerships with several organizations, including Amazon Web Services, Microsoft Azure, and IBM Cloud, to provide cloud-based services and support Internet of Things applications. The system is designed to provide global coverage, with a network of 66 operational satellites, as well as six spare satellites.

Operations_and_Maintenance

Iridium NEXT is operated by Iridium Communications, which is responsible for the management and maintenance of the satellite constellation. The company has a network of ground stations, including those located at Vandenberg Space Force Base, Hawaii, and Australia, which are used to control and monitor the satellites. The system is also supported by a team of engineers and technicians, who are responsible for ensuring the continuity of service and performing routine maintenance tasks. Iridium NEXT has partnerships with several organizations, including NASA, European Space Agency, and Canadian Space Agency, to support the operation and maintenance of the system. The project also receives support from U.S. Department of Defense, Federal Communications Commission, and International Telecommunication Union.

Category:Satellite constellations