Artemis (satellite)

The Artemis satellite operated at the 21.5E orbital position[1] until 2016, when it was moved to 123E to cover the L-Band spectrum rights for Indonesia's Ministry of Defense.

Then, its RIT-10 gridded ion thruster — originally intended for station keeping and for firing a few minutes at a time — was instead kept running for most of 18 months, pushing the spacecraft into an outward spiral trajectory.

[18] As of 2005[update], Artemis was used operationally for data relay from ESA's satellites in low Earth orbit; a SILEX link to SPOT-4 was typically established daily.

[19] It was also used on a situational basis; for example, it was used in 2008 to relay information from the automated transfer vehicle Jules Verne while mission control at Houston was unavailable due to a hurricane.

[21][22] In November 2017, Artemis was retired into the graveyard orbit after the Indonesian Ministry of Defence failed to pay outstanding rental lease for hiring the satellite to Avanti Communications.