Starlink 4639
Re-entered 12 Feb 2026Starlink 4639 (NORAD 53971, COSPAR 2022-125H) was a US satellite that re-entered Earth's atmosphere on 12 Feb 2026, launched on 5 Oct 2022 on the Starlink Group 4-29 mission. It is catalogued as Starlink Group 4-29-08. It was operated by SpaceX as part of the Starlink 1.5 G4 programme. The spacecraft was built by SPXS on the Starlink bus, with a mass of 305 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.
Lifecycle
Specifications
Frequently asked questions
What happened to Starlink 4639?
Starlink 4639 re-entered Earth's atmosphere on 12 Feb 2026, ending a mission that began with its launch in 2022. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.
When did Starlink 4639 re-enter the atmosphere?
Starlink 4639 re-entered on 12 Feb 2026, according to Orbital Radar's historical catalogue records.
How long was Starlink 4639 operational?
Starlink 4639 was operational for roughly 8 months, from 7 Apr 2025 to 12 Dec 2025.
Who operated and built Starlink 4639?
Starlink 4639 was operated by SpaceX and built by SPXS (US).