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🛰️ SATELLITE · HISTORICAL RECORD

Lemur FM21

Re-entered 4 Oct 2018

Lemur FM21 (NORAD 42068, COSPAR 1998-067LD) was a US satellite that re-entered Earth's atmosphere on 4 Oct 2018, launched on 9 Dec 2016 on the 77KM No. 17501 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.

2016
launched
2018
re-entered
2
years on orbit
4
kg mass

Lifecycle

Launched9 Dec 2016 · on the 77KM No. 17501 mission
Operational1 Oct 2018 · entered service
Retired1 Oct 2018 · end of operational service
Re-entered4 Oct 2018 · atmospheric re-entry — object destroyed

Specifications

NORAD ID42068
COSPAR1998-067LD
TypeSatellite
OperatorSpire Global
Country / StateUS
ManufacturerSPIREG
BusCubesat 3U
Mass4 kg
ProgrammeSpire
CategoryCOM/MET-RO
OrbitLEO (LLEO/I)
Altitude396 × 408 km
Inclination51.6°

Frequently asked questions

What happened to Lemur FM21?

Lemur FM21 re-entered Earth's atmosphere on 4 Oct 2018, ending a mission that began with its launch in 2016. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Lemur FM21 re-enter the atmosphere?

Lemur FM21 re-entered on 4 Oct 2018, according to Orbital Radar's historical catalogue records.

Who operated and built Lemur FM21?

Lemur FM21 was operated by Spire Global and built by SPIREG (US).

Launched together

STARS-C OyakiRe-entered 2018FREEDOMRe-entered 2017TANCREDO-1Re-entered 2017ITF-2Re-entered 2019Waseda-SAT 3Re-entered 2018EGGRe-entered 2017AOBA-VeloxIIIRe-entered 2018TuPODRe-entered 2017
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.