HomeLibraryRe-entered SatellitesTBEx 1
🛰️ SATELLITE · HISTORICAL RECORD

TBEx 1

Re-entered 9 Mar 2021

TBEx 1 (NORAD 44356, COSPAR 2019-036T) was a US satellite that re-entered Earth's atmosphere on 9 Mar 2021, launched on 25 Jun 2019 on the STP-2 mission. It was operated by UMI / SRII as part of the UMI programme. The spacecraft was built by UMI/SRII on the Cubesat 3U bus, with a mass of 4 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
2021
re-entered
2
years on orbit
4
kg mass

Lifecycle

Launched25 Jun 2019 · on the STP-2 mission
Operational1 Jun 2020 · entered service
Retired1 Jun 2020 · end of operational service
Re-entered9 Mar 2021 · atmospheric re-entry — object destroyed

Specifications

NORAD ID44356
COSPAR2019-036T
TypeSatellite
OperatorUMI / SRII
Country / StateUS
ManufacturerUMI/SRII
BusCubesat 3U
Mass4 kg
ProgrammeUMI
CategorySCI
OrbitLEO (LLEO/I)
Altitude298 × 846 km
Inclination28.5°

Frequently asked questions

What happened to TBEx 1?

TBEx 1 re-entered Earth's atmosphere on 9 Mar 2021, 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 TBEx 1 re-enter the atmosphere?

TBEx 1 re-entered on 9 Mar 2021, according to Orbital Radar's historical catalogue records.

Who operated and built TBEx 1?

TBEx 1 was operated by UMI / SRII and built by UMI/SRII (US).

Launched together

Prox-1NORAD 44339Oculus-ASR Sphere 1Re-entered 2019Prometheus 2.6Re-entered 2022LightSail-BRe-entered 2022NPSAT-1NORAD 44340Orbital Test BedNORAD 44341GPIMRe-entered 2020COSMIC-2 FM3NORAD 44343
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.