Five years of additional service have been added to the Intelsat 901 satellite by a Mission Extension Vehicle (MEV).
The world’s first MEV, developed by Northrop Grumman Corporation’s Space Logistics LLC, successfully detached from IS-901 after moving the satellite to the graveyard orbit, where the satellite will be decommissioned after nearly 24 years of service. The MEV first docked with IS-901 in February of 2020 nearly 19 years after the satellite was first launched.
“The MEV mission proved that in-orbit servicing enhances satellite sustainability and efficiency in space,” said Jean-Luc Froeliger, SVP of Space Systems, Intelsat. “We were able to provide five additional years of reliable service to our Network, Media and Mobility customers and paved the way for future advancements in satellite servicing.”
Geostationary satellites use propellant to remain at a specific orbital location, relocate to a new location or eventually be moved to a graveyard orbit. The MEV has its own propellant and thrusters that operate independently of the satellite. Through in-orbit docking, the MEV allows Intelsat to extend the life of a satellite by several years when the original propellant of that satellite has been depleted.
“Using the MEV to extend the life of IS-901 was a great commercial success for our customers, as well as a historic technical achievement,” Froeliger said. “We had to do a rendezvous and approach of two spacecraft moving at 3km per second,” Froeliger said. Following this success, Intelsat partnered with Northrop Grumman on a second mission in 2021, using MEV-2 to extend the life of Intelsat 10-02, a combination that remains operational today.
