Last updated:November 5, 2018
HTV7 Mission Timeline
| Flight Day |
Major mission events |
| FD1 |
- Launch, Orbit Insertion
- Post-insertion auto sequence
- HTV subsystem activations
- Attitude control
- Anomaly check
- Establishment of communication with the Tracking and Data Relay Satellite (TDRS)
- Initiation of communication with the HTV Mission Control Room (HTV MCR) at the Tsukuba Space Center
- Initiation of Rendezvous Maneuver
|
| FD1 to FD5 |
- Rendezvous Maneuver with the ISS
|
| FD5 |
- Proximity Operations, Final Approach
- Capture by the Space Station Remote Manipulator System (SSRMS)
- Berthing to the ISS
- Berthing to the Common Berthing Mechanism (CBM) on the Harmony's Nadir Port
- Vestibule outfitting (connection of power and communication line)
- Switching of the communications line (Radio wave to fixed line)
|
| - |
- Crew ingress to the Pressurized Logistics Carrier (PLC)
- Hatch open
- Activation of the Inter-Module Ventilation (IMV)
|
| - |
- Cargo Transfer from the PLC to the ISS
|
| - |
- Removal of the Exposed Pallet (EP) from the HTV's Unpressurized Logistics Carrier (ULC), and transfer to the ISS truss using the SSRMS/Mobaile Transporter (MT)
|
| - |
- Transfer of the ISS battery ORUs assembled Japanese lithium-ion battery cells※ out of the EP using SPDM
※Nickel hydride batteries currently used on the ISS will be replaced by the lithium-ion batteries delivered by KOUNOTORI.
|
| - |
- Reinstallation of the EP back into the HTV's ULC
※Due to Launch failure of Soyuz MS-10, HTV7 mission is changed to not reinstall the EP on ULC.
|
| - |
- Cargo transfer / Trash loading
|
| 2 days before departing |
- Assemble HTV Small Re-entry Capsule (HSRC) Part 1
- Unpack and assemble pressurized bulkhead (top board and cylinder) for HSRC, inside the Pressurized Logistics Carrier (PLC)
|
A day before
departure
from the ISS |
- Assemble HSRC Part 2
- Store collected samples in the HSRC container at “Kibo”
- Install the separation mechanism onto HSRC and temporarily attach HSRC to the pressurized bulkhead
- Combine HSRC with the pressurized bulkhead
- Connect the pressurized bulkhead with cables
- Install HSRC with pressurized bulkhead onto the hatch of HTV PLC
- Preparation for the HTV Unberthing Operations
- IMV de-activation
- Switching of the communications line (Fixed line to radio wave)
|
| Unberthing Day |
- HTV7 unberthing
- Deactivation of HTV power supply from ISS
- Disconnection of power and communication line
- HTV grapple by the SSRMS
- CBM bolts release
- SSRMS moves HTV to the release position
- Activation of the Guidance Navigation Control (GNC), activation of HTV propulsion system
- SSRMS releases HTV
- HTV begins separation maneuvers
|
| De-orbit Maneuver |
- After de-orbit Maneuver, HTV Small Re-entry Capsule will be released
|
| Reentry |
|
* In-flight schedule of the HTV7 mission is subject to change depending on the ISS's operational timeline.
* Photos used in the table were taken during the previous HTV missions. Some Computer Graphics (CG) images are included.
