Tianwen-4
Tianwen-4, (Chinese: 天问四号) formerly known as Gan De, (Chinese: 甘德) is a planned interplanetary mission by China to study the Jovian system and its environs, sharing a launch with a spacecraft which will make a flyby of Uranus.
| Mission type | Jupiter and Callisto orbiter Uranus flyby |
|---|---|
| Operator | CNSA |
| Spacecraft properties | |
| Manufacturer | CAST |
| Launch mass | Total: 5,000 kg (11,000 lb) Jupiter-Callisto Orbiter: 4,000 kg (8,800 lb) Interplanetary flyby probe: 1,000 kg (2,200 lb) |
| Start of mission | |
| Launch date | September 2029 (proposed) |
| Rocket | Long March 5 |
| Launch site | Wenchang |
| Flyby of Venus (gravity assist) | |
| Closest approach | April 2030 (proposed) |
| Flyby of Earth (gravity assist) | |
| Closest approach | February 2031 (proposed) |
| Flyby of Earth (gravity assist) | |
| Closest approach | May 2033 (proposed) |
| Jupiter orbiter | |
| Orbital insertion | December 2035 (proposed) |
| Orbital departure | February 2038 (proposed) |
| Callisto orbiter | |
| Orbital insertion | February 2038 (proposed) |
| Flyby of Uranus (Interplanetary flyby probe) | |
| Closest approach | March 2045 (proposed) |
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