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🛰️ SATELLITE · HISTORICAL RECORD

Astrocast-1.x4

Re-entered 28 Nov 2025

Astrocast-1.x4 (NORAD 47519, COSPAR 2021-006DK) was a CH satellite that re-entered Earth's atmosphere on 28 Nov 2025, launched on 24 Jan 2021 on the Transporter-1 mission. It was operated by ACAST as part of the Astrocast programme. The spacecraft was built by ACAST on the Cubesat 3U bus, with a mass of 5 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
5
kg mass

Lifecycle

Launched24 Jan 2021 · on the Transporter-1 mission
Operational1 Oct 2025 · entered service
Retired1 Oct 2025 · end of operational service
Re-entered28 Nov 2025 · atmospheric re-entry — object destroyed

Specifications

NORAD ID47519
COSPAR2021-006DK
TypeSatellite
OperatorACAST
Country / StateCH
ManufacturerACAST
BusCubesat 3U
Mass5 kg
ProgrammeAstrocast
CategoryCOM
OrbitLEO (LLEO/S)
Altitude524 × 537 km
Inclination97.5°

Frequently asked questions

What happened to Astrocast-1.x4?

Astrocast-1.x4 re-entered Earth's atmosphere on 28 Nov 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 Astrocast-1.x4 re-enter the atmosphere?

Astrocast-1.x4 re-entered on 28 Nov 2025, according to Orbital Radar's historical catalogue records.

Who operated and built Astrocast-1.x4?

Astrocast-1.x4 was operated by ACAST and built by ACAST (CH).

Launched together

Starlink TSP1-01Re-entered 2021UVSQ-SATRe-entered 2024YUSAT-1Re-entered 2024CharlieRe-entered 2024ASELSATRe-entered 2024SpaceBEE 63Re-entered 2024SpaceBEE 50Re-entered 2023SpaceBEE 51Re-entered 2023
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.