Program: Tianlian

Also called CTDRS, Tian Lian

Chinese data relay satellite program to provide near realtime communication with LEO spacecrafts. Known as the Chinese TDRS

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Specifications of Tianlian 1

Prime contractor	CAST
Platform	DFH-3
Mass at launch	< 3800 kg
Payload mass	220 kg
Dimension
Solar array
Stabilization
DC power	1700 W
Design lifetime

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Specifications of Tianlian 2

Prime contractor	CAST
Platform	DFH-4
Mass at launch	< 5000 kg
Payload mass
Dimension
Solar array
Stabilization
DC power
Design lifetime

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