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🛰️ SATELLITE · HISTORICAL RECORD

Lemur FM25

Re-entered 23 May 2023

Lemur FM25 (NORAD 41994, COSPAR 2017-008AY) was a US satellite that re-entered Earth's atmosphere on 23 May 2023, launched on 15 Feb 2017 on the PSLV Rideshare 09 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.

2017
launched
2023
re-entered
6
years on orbit
4.6
kg mass

Lifecycle

Launched15 Feb 2017 · on the PSLV Rideshare 09 mission
Operational1 Feb 2020 · entered service
Retired1 Feb 2020 · end of operational service
Re-entered23 May 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID41994
COSPAR2017-008AY
TypeSatellite
OperatorSpire Global
Country / StateUS
ManufacturerSPIREG
BusCubesat 3U
Mass4.6 kg
ProgrammeSpire
CategoryCOM/MET-RO
OrbitLEO (LLEO/S)
Altitude496 × 507 km
Inclination97.5°

Frequently asked questions

What happened to Lemur FM25?

Lemur FM25 re-entered Earth's atmosphere on 23 May 2023, ending a mission that began with its launch in 2017. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Lemur FM25 re-enter the atmosphere?

Lemur FM25 re-entered on 23 May 2023, according to Orbital Radar's historical catalogue records.

Who operated and built Lemur FM25?

Lemur FM25 was operated by Spire Global and built by SPIREG (US).

Launched together

Cartosat-2DNORAD 41948Dove 1010Re-entered 2023Dove 1021Re-entered 2023Dove 1022Re-entered 2023Dove 101FRe-entered 2023Dove 101BRe-entered 2023Dove 1009Re-entered 2023Dove 1014Re-entered 2023
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.