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Stratosat TK-1-E

Re-entered 5 Aug 2025

Stratosat TK-1-E (NORAD 57327, COSPAR 2023-091BB) was a RU satellite that re-entered Earth's atmosphere on 5 Aug 2025, launched on 27 Jun 2023 on the Soyuz Rideshare 11 mission. It was operated by STRAT / MKS as part of the StratoSat programme. The spacecraft was built by MKS on the TinySat 2TU bus, with a mass of 0.25 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.

2023
launched
2025
re-entered
2
years on orbit
0.25
kg mass

Lifecycle

Launched27 Jun 2023 · on the Soyuz Rideshare 11 mission
Operational1 Jul 2025 · entered service
Retired1 Jul 2025 · end of operational service
Re-entered5 Aug 2025 · atmospheric re-entry — object destroyed

Specifications

NORAD ID57327
COSPAR2023-091BB
TypeSatellite
OperatorSTRAT / MKS
Country / StateRU
ManufacturerMKS
BusTinySat 2TU
Mass0.25 kg
ProgrammeStratoSat
CategoryCOM
OrbitLEO (LLEO/S)
Altitude543 × 569 km
Inclination97.7°

Frequently asked questions

What happened to Stratosat TK-1-E?

Stratosat TK-1-E re-entered Earth's atmosphere on 5 Aug 2025, ending a mission that began with its launch in 2023. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Stratosat TK-1-E re-enter the atmosphere?

Stratosat TK-1-E re-entered on 5 Aug 2025, according to Orbital Radar's historical catalogue records.

Who operated and built Stratosat TK-1-E?

Stratosat TK-1-E was operated by STRAT / MKS and built by MKS (RU).

Launched together

Meteor-M No. 2-3NORAD 57166Nanozond-1Re-entered 2026Polytech Univers-3NORAD 57191SITRO-AIS-6NORAD 57192SITRO-AIS-8NORAD 57193SITRO-AIS-7NORAD 57194Avion-Kaluga 650NORAD 57195Khors No. 2NORAD 57196
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.