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Stratosat TK-1-B

Re-entered 13 May 2026

Stratosat TK-1-B (NORAD 57323, COSPAR 2023-091AX) was a RU satellite that re-entered Earth's atmosphere on 13 May 2026, launched on 27 Jun 2023 on the Soyuz Rideshare 11 mission. It was operated by Stratonavtika / MKS as part of the StratoSat programme. The spacecraft was built by MKS on the TinySat 1TU bus, with a mass of 0.125 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
2026
re-entered
3
years on orbit
0.125
kg mass

Lifecycle

Launched27 Jun 2023 · on the Soyuz Rideshare 11 mission
Operational1 Mar 2026 · entered service
Retired1 Mar 2026 · end of operational service
Re-entered13 May 2026 · atmospheric re-entry — object destroyed

Specifications

NORAD ID57323
COSPAR2023-091AX
TypeSatellite
OperatorStratonavtika / MKS
Country / StateRU
ManufacturerMKS
BusTinySat 1TU
Mass0.125 kg
ProgrammeStratoSat
CategoryCOM
OrbitLEO (LLEO/S)
Altitude543 × 569 km
Inclination97.7°

Frequently asked questions

What happened to Stratosat TK-1-B?

Stratosat TK-1-B re-entered Earth's atmosphere on 13 May 2026, 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-B re-enter the atmosphere?

Stratosat TK-1-B re-entered on 13 May 2026, according to Orbital Radar's historical catalogue records.

Who operated and built Stratosat TK-1-B?

Stratosat TK-1-B was operated by Stratonavtika / 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 2026-09-16.