The QQW or DQ (Da Qui) were two balloon satellites for studies of the density of the upper atmosphere.
The two satellites were launched on 3 September 1990 together with the prime payload FY 1B on a CZ-4 rocket. The satellites weighted 2.6 kg and 3.3 kg and were deployed from the CZ-4 upper stage using a special adapter.
| Nation: | China |
|---|---|
| Type / Application: | Research, air density |
| Operator: | |
| Contractors: | |
| Equipment: | |
| Configuration: | Balloon |
| Propulsion: | |
| Power: | |
| Lifetime: | |
| Mass: | 2.6 kg (#1); 3.3 kg (#2) |
| Orbit: |
| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| QQW 1 (DQ 1) | 1990-081B | 03.09.1990 | TY LC-7 | CZ-4 | with FY 1B, QQW 2 | |
| QQW 2 (DQ 2) | 1990-081CB | 03.09.1990 | TY LC-7 | CZ-4 | with FY 1B, QQW 1 |
