HTV-X1 is the first flight and the technical demonstration mission of HTV-X, an

uncrewed An uncrewed vehicle or unmanned vehicle is a vehicle without a person on board. Uncrewed vehicles can either be under telerobotic control—remote controlled or remote guided vehicles—or they can be autonomously controlled—autonomous vehicl ...

expendable

cargo spacecraft Uncrewed spacecraft or robotic spacecraft are spacecraft without people on board. Uncrewed spacecraft may have varying levels of autonomy from human input, such as remote control, or remote guidance. They may also be autonomous, in which the ...

. , it is intended to be launched in 2025 to resupply the

International Space Station The International Space Station (ISS) is a large space station that was Assembly of the International Space Station, assembled and is maintained in low Earth orbit by a collaboration of five space agencies and their contractors: NASA (United ...

(ISS).

Cargo

In the pressurised compartment, HTV-X1 carries the following cargo: * foods * DRCS (Demonstration of Removing Carbon-dioxide System) * NORS (Nitrogen/Oxigen Recharge System) tank * RST (Water Resupply Tank) As unpressurised cargo, HTV-X1 carries following cargo: * i-SEEP, an exposed experiment platform In addition to the primary mission of carrying the resupply cargo to the ISS, HTV-X1 carries the following payloads: * DELIGHT, a technology demonstration of lightweight expandable flat antenna * Mt.FUJI, a technology demonstration for satellite laser ranging * H-SSOD, to deploy a CubeSat (Ten-Koh 2) after departure from ISS

References

External links

H-II Transfer Vehicles Supply vehicles for the International Space Station 2025 in spaceflight Long stubs with short prose {{Japan-spacecraft-stub