|Units or mass||1U|
|Status||Reentry 2022-07-05. Was operational, but 2 of 3 had solar panel failures and negative power budget (Signals reported on Twitter and SatNOGS as of 2021-03-27)|
|Deployer||J-SSOD (JEM Small Satellite Orbital Deployer)|
|Deployment||Deployed from ISS on 2021-03-14|
|Organisation||Kyushu Institute of Technology|
|Entity||Academic / Education|
|Manufacturer||AIVT by Kyushu Institute of Technology|
Educational and amateur radio mission.
The primary mission of BIRDS-4 CubeSat constellation is to provide digital message relay service to the amateur radio community by means of an APRS (Automatic Packet Reporting System) digipeater onboard.
|Failure cause||Two BIRDS-4 had one solar panel failure and negative power budget. Need to confirm which ones.|
|Sources||   |
|Photo sources||      |