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🛰️ SATELLITE · HISTORICAL RECORD

PJ-1

Re-entered 8 Mar 2024

PJ-1 (NORAD 40925, COSPAR 2015-051A) was a CN satellite that re-entered Earth's atmosphere on 8 Mar 2024, launched on 25 Sep 2015 on the TW-1? mission. It was operated by SAST as part of the Pujiang programme. The spacecraft was built by SAST/SISE on the PJ bus, with a mass of 347 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.

2015
launched
2024
re-entered
9
years on orbit
347
kg mass

Lifecycle

Launched25 Sep 2015 · on the TW-1? mission
Operational1 Jan 2023 · entered service
Retired1 Jan 2023 · end of operational service
Re-entered8 Mar 2024 · atmospheric re-entry — object destroyed

Specifications

NORAD ID40925
COSPAR2015-051A
TypeSatellite
OperatorSAST
Country / StateCN
ManufacturerSAST/SISE
BusPJ
Mass347 kg
ProgrammePujiang
CategoryTECH
OrbitLEO (LLEO/S)
Altitude468 × 486 km
Inclination97.3°

Frequently asked questions

What happened to PJ-1?

PJ-1 re-entered Earth's atmosphere on 8 Mar 2024, ending a mission that began with its launch in 2015. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did PJ-1 re-enter the atmosphere?

PJ-1 re-entered on 8 Mar 2024, according to Orbital Radar's historical catalogue records.

Who operated and built PJ-1?

PJ-1 was operated by SAST and built by SAST/SISE (CN).

Launched together

TW-1CRe-entered 2021TW-1BRe-entered 2021TW-1ARe-entered 2022
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.