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🛰️ SATELLITE · HISTORICAL RECORD

Shi Jian 25

Re-entered 21 Jul 2025

Shi Jian 25 (NORAD 62485, COSPAR 2025-002A) was a CN satellite that re-entered Earth's atmosphere on 21 Jul 2025, launched on 6 Jan 2025 on the Shi Jian 25 mission. It was operated by SAST as part of the SJ21 programme. The spacecraft was built by SAST? on the SJ21 bus, with a mass of 5,000 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.

2025
launched
2025
re-entered
0
years on orbit
5,000
kg mass

Lifecycle

Launched6 Jan 2025 · on the Shi Jian 25 mission
Re-entered21 Jul 2025 · atmospheric re-entry — object destroyed

Specifications

NORAD ID62485
COSPAR2025-002A
TypeSatellite
OperatorSAST
Country / StateCN
ManufacturerSAST?
BusSJ21
Mass5,000 kg (2,500 kg dry)
ProgrammeSJ21
CategoryTECH
OrbitMEO (MEO)
Altitude8,078 × 34,498 km
Inclination22.3°

Frequently asked questions

What happened to Shi Jian 25?

Shi Jian 25 re-entered Earth's atmosphere on 21 Jul 2025, ending a mission that began with its launch in 2025. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Shi Jian 25 re-enter the atmosphere?

Shi Jian 25 re-entered on 21 Jul 2025, according to Orbital Radar's historical catalogue records.

Who operated and built Shi Jian 25?

Shi Jian 25 was operated by SAST and built by SAST? (CN).

Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-11-02.