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🛰️ SATELLITE · HISTORICAL RECORD

GRBAlpha

Re-entered 10 Jun 2025

GRBAlpha (NORAD 47959, COSPAR 2021-022AD) was a SK satellite that re-entered Earth's atmosphere on 10 Jun 2025, launched on 22 Mar 2021 on the Soyuz Rideshare 9 mission. It was operated by TUKE as part of the TUKE programme. The spacecraft was built by TUKE/KONK on the Cubesat 1U bus, with a mass of 1 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.

2021
launched
2025
re-entered
4
years on orbit
1
kg mass

Lifecycle

Launched22 Mar 2021 · on the Soyuz Rideshare 9 mission
Operational9 Jun 2025 · entered service
Retired9 Jun 2025 · end of operational service
Re-entered10 Jun 2025 · atmospheric re-entry — object destroyed

Specifications

NORAD ID47959
COSPAR2021-022AD
TypeSatellite
OperatorTUKE
Country / StateSK
ManufacturerTUKE/KONK
BusCubesat 1U
Mass1 kg
ProgrammeTUKE
CategoryAST
OrbitLEO (LLEO/S)
Altitude535 × 562 km
Inclination97.6°

Frequently asked questions

What happened to GRBAlpha?

GRBAlpha re-entered Earth's atmosphere on 10 Jun 2025, ending a mission that began with its launch in 2021. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did GRBAlpha re-enter the atmosphere?

GRBAlpha re-entered on 10 Jun 2025, according to Orbital Radar's historical catalogue records.

Who operated and built GRBAlpha?

GRBAlpha was operated by TUKE and built by TUKE/KONK (SK).

Launched together

CAS500-1NORAD 47932ChallengeOneRe-entered 2025BEESAT 6Re-entered 2024KMSLRe-entered 2026OrbiKraft-ZorkiyRe-entered 20253B5GSATRe-entered 2024STECCORe-entered 2024ArduiCubeRe-entered 2023
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.