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🛰️ SATELLITE · HISTORICAL RECORD

Lemur FM40

Re-entered 5 Aug 2023

Lemur FM40 (NORAD 42780, COSPAR 2017-036R) was a US satellite that re-entered Earth's atmosphere on 5 Aug 2023, launched on 23 Jun 2017 on the PSLV Rideshare 10 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 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
kg mass

Lifecycle

Launched23 Jun 2017 · on the PSLV Rideshare 10 mission
Operational1 Jun 2020 · entered service
Retired1 Jun 2020 · end of operational service
Re-entered5 Aug 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID42780
COSPAR2017-036R
TypeSatellite
OperatorSpire Global
Country / StateUS
ManufacturerSPIREG
BusCubesat 3U
Mass4 kg
ProgrammeSpire
CategoryCOM/MET-RO
OrbitLEO (LLEO/S)
Altitude496 × 509 km
Inclination97.5°

Frequently asked questions

What happened to Lemur FM40?

Lemur FM40 re-entered Earth's atmosphere on 5 Aug 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 FM40 re-enter the atmosphere?

Lemur FM40 re-entered on 5 Aug 2023, according to Orbital Radar's historical catalogue records.

Who operated and built Lemur FM40?

Lemur FM40 was operated by Spire Global and built by SPIREG (US).

Launched together

QB50-GB03Re-entered 2023skCUBERe-entered 2023Venta-1Re-entered 2024ROBUSTA 1BRe-entered 2023CICERO-6Re-entered 2024D-SATNORAD 42794TYVAK-53BRe-entered 2023
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.