HTV-X1

HTV-X1
Mission type	ISS resupply
Operator	JAXA
Spacecraft properties
Spacecraft	HTV-X1
Spacecraft type	HTV-X
Manufacturer	MHI
Start of mission
Launch date	2025 (planned)
Rocket	H3-24W
Launch site	Tanegashima LA-Y2
Contractor	MHI
Berthing at ISS
	← Kounotori 9 HTV-X2 →

HTV-X1 is the first flight and the technical demonstration mission of HTV-X, an uncrewed expendable cargo spacecraft. As of December 2023^[update], it is intended to be launched in 2025 to resupply the International Space Station (ISS).^[1]

Cargo

In addition to the primary mission of carrying the resupply cargo to the ISS, HTV-X1 will carry the following payloads:^[2]

i-SEEP, an exposed experiment platform
DELIGHT, a technology demonstration of lightweight expandable flat antenna
Mt.FUJI, a technology demonstration for satellite laser ranging
Microsatellites to be deployed from HTV-X1 after departure from ISS

References

^ ^a ^b "宇宙基本計画⼯程表 (令和５年度改訂)" [Basic Plan on Space Policy (2023 Revision)] (PDF) (in Japanese). Cabinet Office. 22 December 2023. p. 45. Archived (PDF) from the original on 25 December 2023. Retrieved 26 December 2023.
^ ^a ^b 新型宇宙ステーション補給機（HTV‐X）の開発状況について (PDF) (in Japanese). Ministry of Education, Culture, Sports, Science. 9 February 2021. Retrieved 4 March 2021.

External links

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[cao-fy05-1] "宇宙基本計画⼯程表 (令和５年度改訂)" [Basic Plan on Space Policy (2023 Revision)] (PDF) (in Japanese). Cabinet Office. 22 December 2023. p. 45. Archived (PDF) from the original on 25 December 2023. Retrieved 26 December 2023.

[jaxa20210209-2] 新型宇宙ステーション補給機（HTV‐X）の開発状況について (PDF) (in Japanese). Ministry of Education, Culture, Sports, Science. 9 February 2021. Retrieved 4 March 2021.

[1]

[2]

v t e H-II Transfer Vehicle (Kounotori) spaceflights
HTV missions	1 (Sep 2009) 2 (Jan 2011) 3 (Jul 2012) 4 (Aug 2013) 5 (Aug 2015) 6 (Dec 2016) 7 (Sep 2018) 8 (Sep 2019) 9 (May 2020)
HTV-X missions	X1 X2 X3
See also	H-IIB H3 JAXA Tanegashima (Yoshinobu) Uncrewed spaceflights to the ISS

v t e Uncrewed spaceflights to the International Space Station
See also: {{Crewed ISS flights}} {{ISS expeditions}}
2000–2004	2000 2R / Zvezda 1P 2P 3P 2001 4P 5P SO1 / Pirs 6P 2002 7P 8P 9P 2003 10P 11P 12P 2004 13P 14P 15P 16P
2005–2009	2005 17P 18P 19P 20P 2006 21P 22P 23P 2007 24P 25P 26P 27P 2008 28P ATV-1 29P 30P 31P 2009 32P 33P 34P HTV-1 35P MIM2 / Poisk
2010–2014	2010 36P 37P 38P 39P 40P 2011 HTV-2 41P ATV-2 42P 43P 44P† 45P 2012 46P ATV-3 47P SpX-D HTV-3 48P SpX-1 49P 2013 50P SpX-2 51P ATV-4 52P HTV-4 Orb-D1 53P 2014 Orb-1 54P 55P SpX-3 Orb-2 56P ATV-5 SpX-4 Orb-3† 57P
2015–2019	2015 SpX-5 58P SpX-6 59P† SpX-7† 60P HTV-5 61P OA-4 62P 2016 OA-6 63P SpX-8 64P SpX-9 OA-5 65P† HTV-6 2017 SpX-10 66P OA-7 SpX-11 67P SpX-12 68P OA-8E SpX-13 2018 69P SpX-14 OA-9E SpX-15 70P HTV-7 71P NG-10 SpX-16 2019 SpX-DM1 72P NG-11 SpX-17 SpX-18 73P 60S HTV-8 NG-12 SpX-19 74P Boe-OFT†
2020–2024	2020 NG-13 SpX-20 75P HTV-9 76P NG-14 SpX-21 2021 77P NG-15 SpX-22 78P Nauka NG-16 SpX-23 79P M-UM / Prichal SpX-24 2022 80P NG-17 Boe-OFT 2 81P SpX-25 82P NG-18 SpX-26 2023 83P SpX-27 84P SpX-28 NG-19 85P SpX-29 86P 2024 NG-20 87P SpX-30 88P
Future	2024 SNC Demo-1 NG-21 SpX-31 89P 2025 HTV-X1 SNC-1
Spacecraft	Roscosmos Progress ESA ATV (past) JAXA HTV NASA CRS SpaceX Dragon 1 (past) SpaceX Dragon 2 Northrop Grumman Cygnus Sierra Nevada Dream Chaser (future)
Ongoing spaceflights in underline Future spaceflights in italics † - mission failed to reach ISS