BackForward Satellite: YunYao-1 

Satellite details
Acronym YunYao-1
Full name YunYao-1 constellation
WIGOS Station Identifier ---
Satellite Description
  • Constellation of nano-satellites for GNSS-RO sounding
  • Orbit heights around 535 km and various orbits for 50o inclined orbits
  • Main missions: radio occultation sounding of atmosphere
  • Substantial contribution to surface variable using reflected signal
  • Substantial contribution to Space weather.
Mass at launch Dry mass
Data access link no link provided
Data access information
  • Data policy being formulated
Orbit Sunsynchronous orbit Altitude 535 km


Space agency CASC
Status Operational
Details on Status
(as available)
  • YunYao-1 18-20 launched on 11 Jan 2024
Launch 11 Jan 2024 EOL ≥2030
Last update: 2024-02-26
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on YunYao-1

Acronym Full name
YunYao-receiver YunYao GNSS receiver
Show instrument status and calibration