Polaris Intelligence
Polaris
Intelligence
About
Ctrl K
Sign in
© Polaris Intelligence 2026
PrivacyTermsAdmin

Shiyan 21

active

试验二十一号卫星

Technology DemonstrationLEOCOSPAR 2022-172ALaunched 12/16/2022
Admin Edit
Mission & Launch
Launch Mission
Shiyan-21
Launch Vehicle
Long March 11
Launch Date
12/16/2022
Orbit & Mass
Orbit Class
LEO
Altitude
482.5 km
Inclination
36 deg
Dry Mass
100 kg
Total Mass
100 kg
Payload Classification
Mission Type
Technology Demonstration
Payload Category
TECH
Payload Class
C
Organizations
Operator
China Academy of Space Technology (CAST)
Manufacturer
China Academy of Space Technology (CAST)
Registry
COSPAR ID
2022-172A
UN Registration
ST/SG/SER.E/1123
Track
Mentions
1
All verified mentions of this spacecraft in source documents.
0.0-5.0
Actions

The Long March 11 most recently launched the Shiyan-21 satellite from Xichang in southwest China.

PlanGeneralValue 4.0Mar 15, 2023China launches classified Shiyan-19 test satellite from the Gobi Desert