Jump to content

Kounotori 9

From Wikipedia, the free encyclopedia

Kounotori 9
Mission typeISSresupply
OperatorJAXA
COSPAR ID2020-030AEdit this at Wikidata
SATCATno.45607
Mission duration92 days
Spacecraft properties
SpacecraftKounotori 9
Spacecraft typeH-II Transfer Vehicle
ManufacturerMitsubishi Heavy Industries
Launch mass16500 kg[1]
Payload mass6200 kg
Dimensions9.8 meters in length,
4.4 metres in diameter
Start of mission
Launch date20 May 2020, 17:31:00 UTC[2]
RocketH-IIBF9 (last)
Launch siteTanegashima,LA-Y2
ContractorMitsubishi Heavy Industries
End of mission
DisposalDeorbited
Decay date20 August 2020, 07:07 UTC
Orbital parameters
Reference systemGeocentric orbit
RegimeLow Earth orbit
Inclination51.66°
Epoch20 May 2020
Berthing atInternational Space Station
Berthing portHarmonynadir
RMScapture25 May 2020, 12:13 UTC[3]
Berthing date25 May 2020, 14:46 UTC[3]
Unberthing date18 August 2020, 13:51 UTC
RMS release18 August 2020, 17:36 UTC
Time berthed85 days, 2 hours, 50 minutes
Cargo
Mass6200 kg
Pressurised4300 kg
Unpressurised1900 kg

Kounotori 9(こうのとり9 hào cơ),also known asHTV-9was the 9th flight of theH-II Transfer Vehicle,a robotic cargo spacecraft to resupply theInternational 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 theHTV-X.[4][7]

Spacecraft[edit]

Major difference from the previousKounotoriare:[8]

  • Camera assembly unit and Wireless LAN communication unit (WLD), described below.

Wireless LAN Demonstration[edit]

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 awireless 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 arendezvous.[8]

Cargo[edit]

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 bySatlantis
    • Equipment for the space media business collaboration (Space Frontier Studio KIBO)
    • Confocal Space Microscopy (COSMIC)
  • NASA cargo:

Cargo in the unpressurized compartment (Unpressurized Logistics Carrier, ULC) was the Exposed Pallet (EP9) which carries the sixlithium-ion batteriesOrbital Replacement Units(ORUs) for replacing theISS's existing nickel-hydrogen batteries.This was the last of the series of transportation of replacement batteries, following the previousKounotori 6,Kounotori 7,andKounotori 8.

On departure from ISS, Kounotori 9 was loaded with the Exposed Pallet ofKounotori 8(EP8) carrying the replaced nickel-hydrogen batteries. It was left on ISS due to the missedextravehicular activityduring theKounotori 7mission for the launch failure ofSoyuz MS-10in 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 usingSpace 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 from this cargo survived the reentry, damaged a house inNaples, Florida.[13][14]

Operations[edit]

Launch[edit]

Kounotori 9 in proximity of ISS to be captured by the SSRMS

Kounotori 9 was launched aboard the ninth and final launch ofH-IIBrocket on 20 May 2020, at 17:31:00 UTC.[2]The launch took place amid theCOVID-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.[15]

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.[16]It was mated to theHarmony's Common Berthing Mechanism (CBM). Berthing operation completed at 18:25 UTC.[17]

Operation while berthed to ISS[edit]

ISS crew opened the hatch of the Kounotori's PLC, and entered at 19:24 UTC.[18]Cargo transfer of the pressurized cargo by the crew began on 26 May 2020.[19]

Exposed Pallet (EP9), which carries lithium-ion batteries, was extracted from the ULC by the ground-operated SSRMS on 1 June 2020.[20]Then,Kounotori 8's Exposed Pallet (EP8), carrying old nickel-hydrogen batteries, was stowed into the ULC on 02:48 UTC, 2 June 2020.[21]

Departure and reentry to the Earth atmosphere[edit]

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[edit]

  1. ^abVũ trụ ステーション bổ cấp cơ “こうのとり” 9 hào cơ ( HTV9 ) に hệ る an toàn đối sách について ( điều tra thẩm nghị kết quả )(PDF)(in Japanese). Working Group on Space Development and Utilization,MEXT.19 May 2020.Retrieved22 May2020.
  2. ^ab"Launch Result of the H-II Transfer Vehicle KOUNOTORI9 aboard the H-IIB Vehicle No. 9".Mitsubishi Heavy Industries. 21 May 2020.Retrieved26 May2020.
  3. ^ab"Expedition 63".Retrieved26 May2020.
  4. ^abKrebs, Gunter Dirk (11 July 2016)."HTV 1,..., 9 (Kounotori 1,..., 9)".Gunter's Space Page.Retrieved19 July2016.
  5. ^"HTV-Kounotori sets sail for the ISS".NASASpaceFlight.com.18 August 2015.Retrieved19 December2015.
  6. ^"Nasa launch announcement".NASA.12 May 2020.Retrieved21 May2020.Public DomainThis article incorporates text from this source, which is in thepublic domain.
  7. ^Krebs, Gunter Dirk (11 July 2016)."HTV-X 1, 2, 3".Gunter's Space Page.Retrieved19 July2016.
  8. ^abcdefVũ trụ ステーション bổ cấp cơ “こうのとり” 9 hào cơ ( HTV9 ) ミッションプレスキット(PDF)(in Japanese). JAXA. 14 May 2020. Archived fromthe original(PDF)on 7 June 2020.Retrieved15 May2020.
  9. ^"HTV9 Mission Timeline".JAXA.1 May 2020.Retrieved21 May2020.
  10. ^"2020 niên ( lệnh hòa 2 niên )5 nguyệt lý sự trường định lệ ký giả hội kiến"(in Japanese).JAXA.15 May 2020.Retrieved21 May2020.
  11. ^"ISS Daily Summary Report – 5/12/2020".NASA.12 May 2020.Retrieved21 May2020.Public DomainThis article incorporates text from this source, which is in thepublic domain.
  12. ^"ISS Daily Summary Report – 3/11/2021".NASA. 11 March 2021.Retrieved13 March2021.
  13. ^Clark, Stephen (2 April 2024)."Trash from the International Space Station may have hit a house in Florida".Ars Technica.Retrieved2 April2024.
  14. ^Weatherbed, Jess (16 April 2024)."NASA confirms origin of space junk that crashed through Florida home".The Verge.Retrieved16 April2024.
  15. ^Đả ち thượng げ chuẩn bị もコロナ cảnh giới kiến học tự 粛 hô び quải け― chủng tử đảo(in Japanese). Jiji Press. 21 May 2020. Archived fromthe originalon 11 July 2020.Retrieved6 June2020.
  16. ^“こうのとり” 9 hào cơ がSSRMSに bả trì されました(in Japanese). JAXA. 25 May 2020.Retrieved6 June2020.
  17. ^"Successful berthing of the H-II Transfer Vehicle" KOUNOTORI9 "(HTV9) to the International Space Station (ISS)".JAXA. 26 May 2020.Retrieved6 June2020.
  18. ^“こうのとり” 9 hào cơ にクルーが nhập thất(in Japanese). JAXA. 26 May 2020.Retrieved6 June2020.
  19. ^Keeter, Bill (26 May 2020)."ISS Daily Summary Report – 5/26/2020".NASA.Retrieved6 June2020.Public DomainThis article incorporates text from this source, which is in thepublic domain.
  20. ^Bộc lộ パレット dẫn xuất し khai thủy(in Japanese). JAXA. 1 June 2020.Retrieved6 June2020.
  21. ^Bộc lộ パレットの thâu nạp hoàn liễu(in Japanese). JAXA. 2 June 2020.Retrieved6 June2020.

External links[edit]

Retrieved from "https://en.wikipedia.org/w/index.php?title=Kounotori_9&oldid=1219232713"