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🛰️ SATELLITE · HISTORICAL RECORD

DoT-1

Re-entered 4 Feb 2025

DoT-1 (NORAD 44399, COSPAR 2019-038P) was a UK satellite that re-entered Earth's atmosphere on 4 Feb 2025, launched on 5 Jul 2019 on the Soyuz Rideshare 8 mission. It was operated by SSTLA as part of the SSTL programme. The spacecraft was built by SSTLA on the DoT bus, with a mass of 18 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.

2019
launched
2025
re-entered
6
years on orbit
18
kg mass

Lifecycle

Launched5 Jul 2019 · on the Soyuz Rideshare 8 mission
Operational1 Jan 2025 · entered service
Retired1 Jan 2025 · end of operational service
Re-entered4 Feb 2025 · atmospheric re-entry — object destroyed

Specifications

NORAD ID44399
COSPAR2019-038P
TypeSatellite
OperatorSSTLA
Country / StateUK
ManufacturerSSTLA
BusDoT
Mass18 kg
ProgrammeSSTL
CategoryTECH
OrbitLEO (LLEO/S)
Altitude564 × 591 km
Inclination97.7°

Frequently asked questions

What happened to DoT-1?

DoT-1 re-entered Earth's atmosphere on 4 Feb 2025, ending a mission that began with its launch in 2019. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did DoT-1 re-enter the atmosphere?

DoT-1 re-entered on 4 Feb 2025, according to Orbital Radar's historical catalogue records.

Who operated and built DoT-1?

DoT-1 was operated by SSTLA and built by SSTLA (UK).

Launched together

Meteor-M No. 2-2NORAD 44387D-Star OneRe-entered 2023Lemur FM108Re-entered 2024BEESAT 9Re-entered 2024Lemur FM103Re-entered 2024CarboNIXRe-entered 2025ROBUSTA 1CRe-entered 2023ICEYE-X5NORAD 44389
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.