Kounotori 5
View of the docked Kounotori 5 spacecraft from the Cupola, with Aurora Australis in the background.
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| Mission type | ISS resupply |
|---|---|
| Operator | JAXA |
| COSPAR ID | 2015-038A |
| SATCAT no. | 40873 |
| Spacecraft properties | |
| Spacecraft type | HTV |
| Manufacturer | Mitsubishi Heavy Industries |
| Start of mission | |
| Launch date | 19 August 2015, 11:50:49 UTC |
| Rocket | H-IIB |
| Launch site | Tanegashima Y2 |
| Contractor | Mitsubishi Heavy Industries |
| End of mission | |
| Disposal | Deorbited |
| Decay date | 29 September 2015, 20:33 UTC |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee | 400 kilometres (250 mi) |
| Apogee | 402 kilometres (250 mi) |
| Inclination | 51.65 degrees |
| Period | 92.58 minutes |
| Epoch | 24 August 2015, 11:32:20 UTC |
| Berthing at ISS | |
| Berthing port | Harmony nadir |
| RMS capture | 24 August 2015, 10:28 UTC |
| Berthing date | 24 August 2015, 17:28 UTC |
| Unberthing date | 28 September 2015, 11:12 UTC |
| RMS release | 28 September 2015, 16:53 UTC |
| Time berthed | 34 days, 23 hours, 25 minutes |
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Kounotori 5, also known as HTV-5, is the fifth flight of the H-II Transfer Vehicle, an uncrewed cargo spacecraft launched to resupply the International Space Station. It was launched on August 19, 2015.
Major changes of Kounotori 5 from previous Kounotori are:
When approaching to ISS, previous missions were held at Approach Initiation (AI) point at 5 km behind the ISS for system checkout, but Kounotori 5 was changed to continue the approach without holding, to simplify the operation.
Kounotori 5 was planned to carry about 5.5 tonnes cargo, consisting of 4.5 t in the pressurised compartment and 1 t in the unpressurised compartment. Due primarily to the launch failure of SpaceX CRS-7, additional 0.2 tonnes were added as the late access cargo. Total cargo weight was 6,057 kg.
Pressurised cargo include potable water (600 liter), food, crew commodities, system components, and science experiment equipments. System components include: UPA Fluids Control and Pump Assembly (FCPA), WPA Multifiltration Beds (WFB), a galley rack to be placed in Unity, and Simplified Aid For EVA Rescue (SAFER). Science experiment equipments include Mouse Habitat Unit (MHU), Electrostatic Levitation Furnace (ELF), Multi-Purpose Small Payload Rack (MSPR-2), Exposed Experiment Handrail Attachment Mechanism (ExHAM 2), NanoRacks External Platform (NREP), and CubeSats (SERPENS, S-CUBE, fourteen Flock-2b,AAUSAT5, and GOMX-3).
Unpressurised cargo consists of the Calorimetric Electron Telescope (CALET).
Originally a NASA unpressurised cargo was planned, but it was canceled.
On departure from ISS, unpressured cargo bay will carry Multi-mission Consolidated Equipment (MCE), Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES), and a NASA experiment module Space Test Program Houston 4 (STP-H4), to dispose by destructive reentry to Earth atmosphere.
It was originally planned for launch in 2014 but was later postponed due to delay in the construction and qualification testing of payload to fly on the capsule.
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