 | |
| Mission type | ISS resupply |
|---|---|
| Operator | JAXA |
| COSPAR ID | 2020-030A |
| SATCAT no. | 45607 |
| Mission duration | 92 days |
| Spacecraft properties | |
| Spacecraft | Kounotori 9 |
| Spacecraft type | H-II Transfer Vehicle |
| Manufacturer | Mitsubishi Heavy Industries |
| Launch mass | 16500 kg[1] |
| Payload mass | 6200 kg |
| Dimensions | 9.8 meters in length, 4.4 metres in diameter |
| Start of mission | |
| Launch date | 20 May 2020, 17:31:00 UTC[2] |
| Rocket | H-IIB F9 (last) |
| Launch site | Tanegashima, LA-Y2 |
| Contractor | Mitsubishi Heavy Industries |
| End of mission | |
| Disposal | Deorbited |
| Decay date | 20 August 2020, 07:07 UTC |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Inclination | 51.66° |
| Epoch | 20 May 2020 |
| Berthing at International Space Station | |
| Berthing port | Harmony nadir |
| RMS capture | 25 May 2020, 12:13 UTC[3] |
| Berthing date | 25 May 2020, 14:46 UTC[3] |
| Unberthing date | 18 August 2020, 13:51 UTC |
| RMS release | 18 August 2020, 17:36 UTC |
| Time berthed | 85 days, 2 hours, 50 minutes |
| Cargo | |
| Mass | 6200 kg |
| Pressurised | 4300 kg |
| Unpressurised | 1900 kg |
Kounotori 9 (こうのとり9号機), also known as HTV-9 was the 9th flight of the H-II Transfer Vehicle, a robotic cargo spacecraft to resupply the International Space Station (ISS).[4][5] It was launched on 20 May 2020, at 17:31:00 UTC.[6]
Kounotori 9 is the last HTV of the original model, with following missions replaced with the HTV-X.[4][7]
YouTube Encyclopedic
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HTV-9 Installation
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Expedition 63 - HTV 9 JAXA Launch - May 20, 2020
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HTV-9 capture
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HTV-9 berthing
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WATCH a 32 ft Long Japanese Cargo Craft Release from Space Station
Transcription
Spacecraft
Major difference from the previous Kounotori are:[8]
- Camera assembly unit and Wireless LAN communication unit (WLD), described below.
Wireless LAN Demonstration
Wireless LAN Demonstration, or WLD (pronounced wild)[8] is an experiment that will be performed during Kounotori 9's flight. During the test, a video taken by Kounotori 9 will be broadcast in real time on board the space station, via a wireless LAN (WLAN) datalink.[9] The experiment will be conducting during Kounotori 9's approach, departure, and while berthed to the ISS.[10] For WLD, the spacecraft has a camera attached to its propulsion module, while a data processor and WLAN antenna is located at the Unpressurized Logistics Carrier's aperture.[8] The technology to be tested by WLD will enable ISS crews to monitor approaching vehicles during an autonomous docking.[11] According to JAXA, if successful this will be the first time for two spacecraft to communicate using WLAN during a rendezvous.[8]
Cargo
Kounotori 9 carried about 6200 kg of cargo mass, consisting of 4300 kg in the pressurized compartment and 1900 kg in the unpressurized compartment.[8] In addition to food items and crew commodities, the pressurized compartment (Pressurized Logistics Carrier; PLC)'s cargo consists of:[8]
- JAXA cargo:
- Solid Combustion Experiment Module (SCEM)
- Integrated Standard Imager for Microsatellites (iSIM), a commercial technology demonstration payload by Satlantis
- Equipment for the space media business collaboration (Space Frontier Studio KIBO)
- Confocal Space Microscopy (COSMIC)
- NASA cargo:
- EXPRESS Rack 11B (ER11B)
- Tank for Water Storage System (WSS)
- High-pressure nitrogen tank for Nitrogen Oxygen Recharge System (NORS)
- ESA cargo:
- European Drawer Rack Mark II (EDR2)
Cargo in the unpressurized compartment (Unpressurized Logistics Carrier, ULC) was the Exposed Pallet (EP9) which carries the six lithium-ion batteries Orbital Replacement Units (ORUs) for replacing the ISS's existing nickel-hydrogen batteries. This was the last of the series of transportation of replacement batteries, following the previous Kounotori 6, Kounotori 7, and Kounotori 8.
On departure from ISS, Kounotori 9 was loaded with the Exposed Pallet of Kounotori 8 (EP8) carrying the replaced nickel-hydrogen batteries. It was left on ISS due to the missed extravehicular activity during the Kounotori 7 mission for the launch failure of Soyuz MS-10 in 2018. The Exposed Pallet of Kounotori 9 (EP9) was left on ISS, and subsequently, it was disposed of by jettisoning into orbit on 11 March 2021 using Space Station Remote Manipulator System (SSRMS), carrying old nickel-hydrogen batteries.[1][12]
The Exposed Pallet of Kounotori 9 (EP9) reentered to Earth atmosphere on 8 March 2024. An object which could be from this cargo damaged a house in Naples, Florida.[13]
Operations
Launch
Kounotori 9 was launched aboard the ninth and final launch of H-IIB rocket on 20 May 2020, at 17:31:00 UTC.[2] The launch took place amid the COVID-19 pandemic, so that the usual launch viewing places were closed to spectators, and the local town offices requested not to visit for launch observation.[14]
After the successful launch, the Kounotori 9 arrived to the proximity of the International Space Station on 25 May 2020, and it was captured by SSRMS at 12:13 UTC.[15] It was mated to the Harmony's Common Berthing Mechanism (CBM). Berthing operation completed at 18:25 UTC.[16]
Operation while berthed to ISS
ISS crew opened the hatch of the Kounotori's PLC, and entered at 19:24 UTC.[17] Cargo transfer of the pressurized cargo by the crew began on 26 May 2020.[18]
Exposed Pallet (EP9), which carries lithium-ion batteries, was extracted from the ULC by the ground-operated SSRMS on 1 June 2020.[19] Then, Kounotori 8's Exposed Pallet (EP8), carrying old nickel-hydrogen batteries, was stowed into the ULC on 02:48 UTC, 2 June 2020.[20]
Departure and reentry to the Earth atmosphere
On 18 August 2020, Kounotori 9 was detached from Harmony's CBM by the SSRMS, and it was released into orbit at 17:36 UTC. It was disposed by the destructive reentry to the Earth atmosphere at around 07:07 UTC, on 20 August 2020.
References
- ^ a b 宇宙ステーション補給機「こうのとり」9号機（HTV9）に係る安全対策について（調査審議結果） (PDF) (in Japanese). Working Group on Space Development and Utilization, MEXT. 19 May 2020. Retrieved 22 May 2020.
- ^ a b "Launch Result of the H-II Transfer Vehicle KOUNOTORI9 aboard the H-IIB Vehicle No. 9". Mitsubishi Heavy Industries. 21 May 2020. Retrieved 26 May 2020.
- ^ a b "Expedition 63". Retrieved 26 May 2020.
- ^ a b Krebs, Gunter Dirk (11 July 2016). "HTV 1, ..., 9 (Kounotori 1, ..., 9)". Gunter's Space Page. Retrieved 19 July 2016.
- ^ "HTV-Kounotori sets sail for the ISS". NASASpaceFlight.com. 18 August 2015. Retrieved 19 December 2015.
- ^ "Nasa launch announcement". NASA. 12 May 2020. Retrieved 21 May 2020.
This article incorporates text from this source, which is in the public domain.
- ^ Krebs, Gunter Dirk (11 July 2016). "HTV-X 1, 2, 3". Gunter's Space Page. Retrieved 19 July 2016.
- ^ a b c d e f 宇宙ステーション補給機「こうのとり」9号機（HTV9）ミッションプレスキット (PDF) (in Japanese). JAXA. 14 May 2020. Archived from the original (PDF) on 7 June 2020. Retrieved 15 May 2020.
- ^ "HTV9 Mission Timeline". JAXA. 1 May 2020. Retrieved 21 May 2020.
- ^ "2020年(令和2年)5月理事長定例記者会見" (in Japanese). JAXA. 15 May 2020. Retrieved 21 May 2020.
- ^ "ISS Daily Summary Report – 5/12/2020". NASA. 12 May 2020. Retrieved 21 May 2020. This article incorporates text from this source, which is in the public domain.
- ^ "ISS Daily Summary Report – 3/11/2021". NASA. 11 March 2021. Retrieved 13 March 2021.
- ^ Clark, Stephen (2 April 2024). "Trash from the International Space Station may have hit a house in Florida". Ars Technica. Retrieved 2 April 2024.
- ^ 打ち上げ準備もコロナ警戒 見学自粛呼び掛け―種子島 (in Japanese). Jiji Press. 21 May 2020. Archived from the original on 11 July 2020. Retrieved 6 June 2020.
- ^ 「こうのとり」9号機がSSRMSに把持されました (in Japanese). JAXA. 25 May 2020. Retrieved 6 June 2020.
- ^ "Successful berthing of the H-II Transfer Vehicle "KOUNOTORI9" (HTV9) to the International Space Station (ISS)". JAXA. 26 May 2020. Retrieved 6 June 2020.
- ^ 「こうのとり」9号機にクルーが入室 (in Japanese). JAXA. 26 May 2020. Retrieved 6 June 2020.
- ^ Keeter, Bill (26 May 2020). "ISS Daily Summary Report – 5/26/2020". NASA. Retrieved 6 June 2020. This article incorporates text from this source, which is in the public domain.
- ^ 曝露パレット引出し開始 (in Japanese). JAXA. 1 June 2020. Retrieved 6 June 2020.
- ^ 曝露パレットの収納完了 (in Japanese). JAXA. 2 June 2020. Retrieved 6 June 2020.
External links
H-II Transfer Vehicle (Kounotori) spaceflights | ||
|---|---|---|
| HTV missions |  | |
| HTV-X missions | ||
| See also | ||
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| 2000–2004 |  | |
| 2005–2009 | ||
| 2010–2014 | ||
| 2015–2019 | ||
| 2020–2024 | ||
| Future | ||
| Spacecraft | ||
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This page was last edited on 2 April 2024, at 10:50