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🛰️ SATELLITE · HISTORICAL RECORD

DOTSI

Re-entered 2 Jul 2021

DOTSI (NORAD 44347, COSPAR 2019-036J) was a US satellite that re-entered Earth's atmosphere on 2 Jul 2021, launched on 25 Jun 2019 on the STP-2 mission. It was operated by USAFA as part of the Falconsat programme. The spacecraft was built by USAFA 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.

2019
launched
2021
re-entered
2
years on orbit
5
kg mass

Lifecycle

Launched25 Jun 2019 · on the STP-2 mission
Operational25 Jun 2019 · entered service
Retired25 Jun 2019 · end of operational service
Re-entered2 Jul 2021 · atmospheric re-entry — object destroyed

Specifications

NORAD ID44347
COSPAR2019-036J
TypeSatellite
OperatorUSAFA
Country / StateUS
ManufacturerUSAFA
BusCubesat 3U
Mass5 kg
ProgrammeFalconsat
CategoryTECH
OrbitLEO (LLEO/I)
Altitude306 × 851 km
Inclination28.5°

Frequently asked questions

What happened to DOTSI?

DOTSI re-entered Earth's atmosphere on 2 Jul 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 DOTSI re-enter the atmosphere?

DOTSI re-entered on 2 Jul 2021, according to Orbital Radar's historical catalogue records.

Who operated and built DOTSI?

DOTSI was operated by USAFA and built by USAFA (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.