Beskrivning : Over the years several Iridium satellites have ceased to work and are no longer in active service, some are partially functional and have remained in orbit whereas others have tumbled out of control or have reentered the atmosphere.
Iridium 21, 27, 20, 11, 24, 71, 44, 14, 79, 69 and 85 all suffered from issues before entering operational service soon after their launch in 1997. Of which Iridium 27, 79 and 85 have since decayed out of orbit; Iridium 11, 14, 20 and 21 have been since renamed to Iridium 911, 914, 920 and 921 respectively since replacements of the same name were launched.