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🛰️ SATELLITE · HISTORICAL RECORD

PTD 1

Re-entered 3 Feb 2024

PTD 1 (NORAD 47482, COSPAR 2021-006BX) was a US satellite that re-entered Earth's atmosphere on 3 Feb 2024, launched on 24 Jan 2021 on the Transporter-1 mission. It was operated by ARC / TYVAK as part of the Ames programme. The spacecraft was built by TYVAK on the Cubesat 6U bus, with a mass of 11 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
2024
re-entered
3
years on orbit
11
kg mass

Lifecycle

Launched24 Jan 2021 · on the Transporter-1 mission
Operational1 Jan 2024 · entered service
Retired1 Jan 2024 · end of operational service
Re-entered3 Feb 2024 · atmospheric re-entry — object destroyed

Specifications

NORAD ID47482
COSPAR2021-006BX
TypeSatellite
OperatorARC / TYVAK
Country / StateUS
ManufacturerTYVAK
BusCubesat 6U
Mass11 kg
ProgrammeAmes
CategoryTECH
OrbitLEO (LLEO/S)
Altitude525 × 536 km
Inclination97.5°

Frequently asked questions

What happened to PTD 1?

PTD 1 re-entered Earth's atmosphere on 3 Feb 2024, 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 PTD 1 re-enter the atmosphere?

PTD 1 re-entered on 3 Feb 2024, according to Orbital Radar's historical catalogue records.

Who operated and built PTD 1?

PTD 1 was operated by ARC / TYVAK and built by TYVAK (US).

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.