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🛰️ SATELLITE · HISTORICAL RECORD

Iridium SV021

Re-entered 13 Feb 2025

Iridium SV021 (NORAD 24873, COSPAR 1997-034E) was a US satellite that re-entered Earth's atmosphere on 13 Feb 2025, launched on 9 Jul 1997 on the Iridium MS-2 mission. It was operated by IRID as part of the Iridium programme. The spacecraft was built by MOTO/LMMS on the LM700 bus, with a mass of 662 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.

1997
launched
2025
re-entered
28
years on orbit
662
kg mass

Lifecycle

Launched9 Jul 1997 · on the Iridium MS-2 mission
Operational1 Jul 1997 · entered service
Retired1 Jul 1997 · end of operational service
Re-entered13 Feb 2025 · atmospheric re-entry — object destroyed

Specifications

NORAD ID24873
COSPAR1997-034E
TypeSatellite
OperatorIRID
Country / StateUS
ManufacturerMOTO/LMMS
BusLM700
Mass662 kg (556 kg dry)
ProgrammeIridium
CategoryCOM
OrbitLEO (LEO/P)
Altitude626 × 645 km
Inclination86.4°

Frequently asked questions

What happened to Iridium SV021?

Iridium SV021 re-entered Earth's atmosphere on 13 Feb 2025, ending a mission that began with its launch in 1997. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Iridium SV021 re-enter the atmosphere?

Iridium SV021 re-entered on 13 Feb 2025, according to Orbital Radar's historical catalogue records.

Who operated and built Iridium SV021?

Iridium SV021 was operated by IRID and built by MOTO/LMMS (US).

Launched together

Iridium SV015Re-entered 2018Iridium SV017NORAD 24870Iridium SV020NORAD 24871Iridium SV018Re-entered 2018
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.