Geostationary orbital slot
A slot on the geostationary orbit, a scarce resource allocated through international coordination, whose loss or delayed occupation can cost an operator more than the satellite itself.
The geostationary orbit, about 35,786 kilometers above the equator, allows a satellite to stay fixed relative to the Earth, making it the favored location for telecommunications and television. But it is unique, and satellites must be spaced along it to avoid interference: slots, associated with frequency bands, are therefore a scarce resource. They are assigned through a coordination process conducted under the aegis of the International Telecommunication Union, based on filings by states, which must then be brought into use within regulatory deadlines, or the rights may be lost. For an operator, an occupied and coordinated slot is a strategic asset, often more valuable than the satellite occupying it. For insurance, this creates a risk distinct from physical damage: a launch failure or in-orbit breakdown can cause loss of rights over a slot if replacement is delayed, a loss conventional insurance does not cover. Slots are also a subject of political tension, since their allocation and protection against jamming involve relations between states.
Hypothetical case: a regional operator holds a coordinated slot it must bring into use before a deadline set by international regulations. Its satellite is lost at launch; insurance pays the spacecraft's value, but building a replacement will take three years. To avoid losing its rights, the operator urgently leases an end-of-life satellite and moves it to the slot.
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