| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Fanhui Shi Weixing - Variants |  |  |  |  |
| 3 | - | FSW-0 | FSW-1 | FSW-2 | FSW-3 |
| 4 | Satellite Mass (kg) | 1800 | 2100 | 2800~3100 | - |
| 5 | Satellite Volume (m3) | 7.6 | 7.6 | 12.8 | - |
| 6 | Return Load (kg) | 260 | 260 | 400 | - |
| 7 | Launch Load (kg) | 340 | 450 | 500~600 | - |
| 8 | Mission Duration (day) | 3~5 | 8 | 15~17 | - |
| 9 | Microgravity Gradient (g) | 10−3~10−5 | 10−3~10−5 | 10−3~10−5 | - |
| 10 | Orbital Inclination (°) | 57~68 | 57~70 | 57~70 | - |
| 11 | Periapsis (km) | 172~180 | 200~210 | 175~200 | - |
| 12 | Apoapsis (km) | 400~500 | 300~400 | 300~400 | - |
| 13 | Orbit Period (min) | ~90 | ~90 | ~90 | - |
| 14 | Launch Rocket Type | Long March C | Long March C | Long March D | Long March C or D |

Question: What were the 5 models of the satellites?
Answer: Four models of the satellites were FSW-0, FSW-1, FSW-2, and FSW-3.