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🛰️ SATELLITE · HISTORICAL RECORD

Lemur FM79

Re-entered 6 Feb 2023

Lemur FM79 (NORAD 43558, COSPAR 2018-046E) was a US satellite that re-entered Earth's atmosphere on 6 Feb 2023, launched on 21 May 2018 on the Cygnus OA-9 mission. It was operated by Spire Global as part of the Spire programme. The spacecraft was built by SPIREG on the Cubesat 3U bus, with a mass of 4.6 kg. Like most satellites in low orbits, it was gradually slowed by atmospheric drag until re-entry. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

2018
launched
2023
re-entered
5
years on orbit
4.6
kg mass

Lifecycle

Launched21 May 2018 · on the Cygnus OA-9 mission
Operational1 Jan 2021 · entered service
Retired1 Jan 2021 · end of operational service
Re-entered6 Feb 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID43558
COSPAR2018-046E
TypeSatellite
OperatorSpire Global
Country / StateUS
ManufacturerSPIREG
BusCubesat 3U
Mass4.6 kg
ProgrammeSpire
CategoryCOM/MET-RO
OrbitLEO (LLEO/I)
Altitude477 × 487 km
Inclination51.6°

Frequently asked questions

What happened to Lemur FM79?

Lemur FM79 re-entered Earth's atmosphere on 6 Feb 2023, ending a mission that began with its launch in 2018. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Lemur FM79 re-enter the atmosphere?

Lemur FM79 re-entered on 6 Feb 2023, according to Orbital Radar's historical catalogue records.

Who operated and built Lemur FM79?

Lemur FM79 was operated by Spire Global and built by SPIREG (US).

Launched together

CubeRRTRe-entered 2020TEMPEST-DRe-entered 2021RainCubeRe-entered 2020HaloSatRe-entered 2021RadixRe-entered 2020Endurosat OneRe-entered 2020EquisatRe-entered 2020RadSat-gRe-entered 2021
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.