Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

Tongxin Jishu Shiyan 21

active

通信技术试验卫星二十一号

Technology DemonstrationHEOCOSPAR 2025-269ALaunched 11/21/2025

Mission & Launch

Launch Mission: TJS 21
Launch Vehicle: Long March 3B G2
Launch Date: 11/21/2025

Orbit & Mass

Orbit Class: HEO
Altitude: 20,175.5 km
Inclination: 63.29 deg
Dry Mass: 2,500 kg
Total Mass: 4,000 kg

Payload Classification

Mission Type

Technology Demonstration

Payload Category

TECH

Payload Class

D

Organizations

Operator: Chinese People’s Liberation Army
Manufacturer: Shanghai Academy of Space Technology (SAST)

Registry

COSPAR ID: 2025-269A