Spire Lemur / eo constellation
sourcing7 factsrfUnited Statesactive
The Lemur satellite is a nanosatellite developed by Spire Global, operating in low Earth orbit. It carries multiple sensors and instruments, including an Automatic Identification System (AIS) receiver, a weather sensor, and a GPS receiver. The satellites collect data on factors such as weather, maritime traffic, and aircraft tracking.
stock
NYSE: SPIR (source, as of 2026-07-05)
faq
Who operates Spire Lemur?
Spire Lemur is operated by Spire Global. (source, as of 2026-07-05)
How many Spire Lemur satellites are active on orbit?
CelesTrak's catalog currently tracks 73 objects for Spire Lemur. (source, as of 2026-07-11)
facts
operatorSpire Global
countryUnited States
sensor typesrf
sats launched (total)unknown
sats active (claimed)unknown
sats active (verified)73
sats plannedunknown
orbitlow Earth orbit
first launchunknown
latest launchunknown
statusactive
websitespire.com
sats active (verified) counts objects currently tracked in CelesTrak's catalog for this constellation. It is a tracking count, not an operator claim about satellite health.
orbit
orbitlow Earth orbit
sats launched (total)unknown
sats active (claimed)unknown
sats active (verified)73
sats plannedunknown
events
timeline
- 20252025-04-25Spire Global completes sale of maritime business to Kpler, eliminates debt (source, as of 2026-07-05)
- 20212021-11-29Spire Global completes acquisition of exactEarth Ltd (source, as of 2026-07-05)
- 2021-09-14Spire Global agrees to acquire exactEarth for about 161 million dollars (source, as of 2026-07-05)
- 2021-08-17Spire Global completes NavSight merger and begins trading on NYSE (source, as of 2026-07-05)
- 20192019-04-01Spire launches 100th Lemur satellite, calls it world's largest weather constellation (source, as of 2026-07-05)
- 20142014-06-19Spire (as NanoSatisfi) launches prototype Lemur-1 satellite on Dnepr (source, as of 2026-07-05)