 
|  Firewheel Credit: Manufacturer Image | 
Status: Operational 1980. First Launch: 1980-05-23. Last Launch: 1980-05-23. Number: 5 . Gross mass: 1,080 kg (2,380 lb).
| Firewheel Subsats 1, 2, 3, 4 Research satellite, Germany. Launched 1980. | 
|  | Firewheel Credit: Manufacturer Image |