HTV Satellite Bus

Data current as of 2026-07-20.

The HTV bus accounts for 11 cataloged objects, of which 0 are in orbit and 0 are active. 11 have reentered. Most are built by MHITO. The largest operator on this bus is JAXA. The first launched in 2009, the most recent in 2020.

0
In orbit
0
Active
11
Total launched
11
Reentered

HTV launched per year

1 2 3 2009: 3 launched, 3 since reentered 2010: 0 objects launched 2011: 1 launched, 1 since reentered 2012: 1 launched, 1 since reentered 2013: 1 launched, 1 since reentered 2014: 0 objects launched 2015: 1 launched, 1 since reentered 2016: 1 launched, 1 since reentered 2017: 0 objects launched 2018: 1 launched, 1 since reentered 2019: 1 launched, 1 since reentered 2020: 1 launched, 1 since reentered 2009 2011 2013 2015 2017 2019
Still in orbit Since reentered Click a year to list its satellites.

Typical specifications

Most common values across cataloged HTV satellites.

Manufacturer MHITO
Purpose Supply
Launch mass 6225 kg
Dry mass 6225 kg
Length 9.8 m
Diameter 4.4 m
Span 9.8 m
Shape Cyl
Power Solar cells (body mounted), batteries
Propulsion HBT-5 x 4
Design life 30 days

Top operators

Top countries

J 11

HTV satellites

Track any of them live in KeepTrack.

Name NORAD COSPAR Owner Launched Orbit Status Track
HTV-9 (KOUNOTORI 9) Kounotori 9 gouki 45607 2020-030A JAXA May 20, 2020 93 min, 51.6° Reentered
HTV-8 (KOUNOTORI 8) Kounotori 8 gouki 44546 2019-062A JAXA Sep 24, 2019 90 min, 51.6° Reentered
HTV-7 (KOUNOTORI 7) Kounotori 7 gouki 43630 2018-073A JAXA Sep 22, 2018 92 min, 51.6° Reentered
HTV-6 (KOUNOTORI 6) Kounotori 6 gouki 41881 2016-076A JAXA Dec 9, 2016 92 min, 51.6° Reentered
HTV-5 (KOUNOTORI 5) Kounotori 5 gouki 40873 2015-038A JAXA Aug 19, 2015 93 min, 51.6° Reentered
HTV-4 (KOUNOTORI 4) Kounotori 4 gouki 39221 2013-040A JAXA Aug 3, 2013 90 min, 51.7° Reentered
HTV-3 (KOUNOTORI 3) Kounotori 3 gouki 38706 2012-038A JAXA Jul 21, 2012 93 min, 51.6° Reentered
HTV-2 (KOUNOTORI 2) Kounotori 2 gouki 37351 2011-003A JAXA Jan 22, 2011 91 min, 51.6° Reentered
H-2B DEB HTV adapter panel 35820 2009-048D JAXA Sep 10, 2009 89 min, 51.6° Reentered
H-2B DEB HTV adapter panel 35819 2009-048C JAXA Sep 10, 2009 89 min, 51.6° Reentered
HTV-1 HTV 1 35817 2009-048A JAXA Sep 10, 2009 91 min, 51.6° Reentered

Frequently asked questions

How many HTV satellites are there?

The catalog lists 11 objects built on the HTV bus. 0 are in orbit and 11 have reentered.

How many HTV satellites are in orbit?

0 HTV objects are currently in orbit, of which 0 carry an active status.

Who builds the HTV bus?

The HTV bus is most commonly built by MHITO.

When did the first HTV satellite launch?

The first cataloged HTV satellite launched in 2009, and the most recent in 2020.

Satellite data compiled by KeepTrack from CelesTrak, Space-Track, and GCAT, provided under CC BY-NC 4.0.