Tianzhou 4

Tianzhou 4

A 1:144 scale Tianzhou 1 model
Mission type	Tiangong space station resupply
Operator	CNSA
COSPAR ID	2022-050A
SATCAT no.	52509
Website	www.cnsa.gov.cn
Mission duration	6 months and 5 days
Spacecraft properties
Spacecraft	Tianzhou-4
Spacecraft type	Tianzhou
Manufacturer	China Aerospace Science and Technology Corporation
Dry mass	6,640 kg (14,640 lb)
Dimensions	10.6 m × 3.35 m (34.8 ft × 11.0 ft)
Power	2
Expedition
Space station	Tiangong space station
Start of mission
Launch date	9 May 2022, 17:56:37 UTC[1]
Rocket	Long March 7
Launch site	Wenchang Satellite Launch Center, LC-2
Contractor	China Academy of Launch Vehicle Technology
End of mission
Disposal	Deorbited
Decay date	14 November 2022, 23:21 UTC
Orbital parameters
Reference system	Geocentric orbit
Regime	Low Earth orbit
Inclination	41.5°
Docking with Tiangong space station
Docking port	Tianhe Aft port
Docking date	10 May 2022, 00:54:00 UTC
Undocking date	9 November 2022, 06:55 UTC
Time docked	183 days, 6 hours and 1 minute
Tiangong program ← Shenzhou 13 Shenzhou 14 →   Tianzhou program ← Tianzhou 3 Tianzhou 5 →

Tianzhou 4 (Chinese: 天舟四号) was the fourth mission of the Tianzhou-class uncrewed cargo spacecraft, and the third resupply mission to Tiangong Space Station carrying 5 tons of cargos and 1 ton of propellant. It is the largest load capacity cargo spacecraft that is on active duty. It launched on 9 May 2022,^[1] docking successfully with the Tiangong space station at the aft port 6 hours after launch.^[2] Like previous Tianzhou missions, the spacecraft launched from the Wenchang Satellite Launch Center in Hainan, China on a Long March 7 rocket.^[3]

It is a part of the construction of the Tiangong space station, and is the third cargo resupply mission to the already launched Tianhe core module (CCM).