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🛰️ SATELLITE · HISTORICAL RECORD

Starlink 3729

Re-entered 15 Jun 2026

Starlink 3729 (NORAD 52135, COSPAR 2022-029AZ) was a US satellite that re-entered Earth's atmosphere on 15 Jun 2026, launched on 19 Mar 2022 on the Starlink Group 4-12 mission. It is catalogued as Starlink Group 4-12-48. 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 297 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.

2022
launched
2026
re-entered
4
years on orbit
297
kg mass

Lifecycle

Launched19 Mar 2022 · on the Starlink Group 4-12 mission
Operational5 Apr 2026 · entered service
Retired2 Jun 2026 · end of operational service
Re-entered15 Jun 2026 · atmospheric re-entry — object destroyed

Specifications

NORAD ID52135
COSPAR2022-029AZ
TypeSatellite
OperatorSpaceX
Country / StateUS
ManufacturerSPXS
BusStarlink
Mass297 kg (275 kg dry)
ProgrammeStarlink 1.5 G4
CategoryCOM
OrbitLEO (LLEO/I)
Altitude313 × 316 km
Inclination53.2°

Frequently asked questions

What happened to Starlink 3729?

Starlink 3729 re-entered Earth's atmosphere on 15 Jun 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 3729 re-enter the atmosphere?

Starlink 3729 re-entered on 15 Jun 2026, according to Orbital Radar's historical catalogue records.

How long was Starlink 3729 operational?

Starlink 3729 was operational for roughly 2 months, from 5 Apr 2026 to 2 Jun 2026.

Who operated and built Starlink 3729?

Starlink 3729 was operated by SpaceX and built by SPXS (US).

Launched together

Starlink Group 4-12-01Re-entered 2025Starlink Group 4-12-25NORAD 52112Starlink Group 4-12-26NORAD 52113Starlink Group 4-12-27NORAD 52114Starlink Group 4-12-28NORAD 52115Starlink Group 4-12-29NORAD 52116Starlink Group 4-12-30NORAD 52117Starlink Group 4-12-31NORAD 52118
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-16.