Kosmos 2473 is the first garpun satellite. Garpun, which have the GRAU index 14F136, are the replacement for the Geizer satellites of the Potok data system. They transmit data from other satellites to ground stations. It was announced that the first launch would be in 2009, but it was delayed until 2011. The last Geizer satellite was Kosmos 2371 which was launched in 2000 and stopped operating in 2009.