What does the Constellation Deployment Monitor show?
Whether each large satellite constellation is deploying fast enough to meet the size it is licensed or filed for and the dated milestones it is held to. It tracks 8 constellations with 12,810 operating satellites, using the public satellite catalogue for what is in orbit and FCC orders, ITU rules, agency and company statements for the deadlines.
Why do deployment milestones matter?
Regulators grant spectrum and orbital rights on condition that satellites are actually launched. The FCC generally requires half of a licensed fleet within six years and all of it within nine; the ITU requires 10% of a filing within two years of its bring-into-use deadline, 50% within five and all within seven. A fleet that misses a milestone can lose part of its authorisation or its priority, which affects its spectrum position and its suppliers’ order books.
How is the projected date calculated?
By carrying forward the fleet’s net additions over the last twelve months: satellites launched minus satellites re-entered, divided by twelve. It is arithmetic on the catalogue record, not a forecast of the operator’s launch plan, and it changes as soon as the pace does.
Where does the data come from?
Satellites launched, operating and re-entered come from the CelesTrak SATCAT, refreshed daily. Licensed and filed sizes and milestones come from FCC orders, the ITU milestone rule, and agency and company statements, each cited on this page.
Who uses it?
Suppliers of satellites, components and launch who need to know which fleets will keep ordering; lenders and investors assessing an operator’s plan against its record; and governments and regulators following spectrum and orbital use.