# \#satellite-constellation

**URL:** https://scanalyst.fourmilab.ch/tag/satellite-constellation/5100.md

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## [Communications Satellites, Part 7: Iridium and Globalstar—False Dawn of Global Satellite Constellations](https://scanalyst.fourmilab.ch/t/communications-satellites-part-7-iridium-and-globalstar-false-dawn-of-global-satellite-constellations/4140)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 1\
**Last updated:** [27 December 2023 16:11 UTC](https://scanalyst.fourmilab.ch/t/communications-satellites-part-7-iridium-and-globalstar-false-dawn-of-global-satellite-constellations/4140 "2023-12-27T16:11:12Z")

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Most ambitious of the “Big LEO” satellite constellations planned in the 1990s was Teledesic, which originally planned to provide downlink speeds of 720 megabits per second and uplink of 100 Mbit/sec with a …