T1H-1

Overview

Destination: Suborbital
Mission: Test Flight

Suborbital Launch Complex 3B Esrange Space Center
T1H - Launch Complex 3 Landing Pad

First low-altitude hop test of a Themis demonstrator, with a targeted altitude up to 100 m.

Updates


Nosu • Sept. 16, 2025, 9:15 a.m.

Adding launch


Themis Demonstrator

Family:
Configuration:

Themis is an ESA rocket prototype – a flagship European demonstrator for low-cost rocket recovery and reuse technologies. Powered by the reusable, methane-fuelled engine Prometheus, it is developed with ArianeGroup as prime contractor and building on decades of European research and experience in rocketry and space operations, Themis is designed to launch, land vertically and live on for another mission.

See Details
Specifications
  • Stages
    1
  • Length
    28.0 m
  • Diameter
    3.5 m
  • Fairing Diameter
  • Launch Mass
    170.0 T
  • Thrust
    980.0 kN
Family
  • Name
    Themis Demonstrator
  • Family
  • Variant
  • Alias
  • Full Name
    Themis Demonstrator
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
  • Geostationary Transfer Orbit
  • Direct Geostationary
  • Sun-Synchronous Capacity

Booster Info


T1H


Type: Core
Flight Proven: No

Landing Information

The Themis T1H demonstrator will attempt a soft vertical landing back at its launch site.

Landing Attempt Confirmed

ArianeGroup

ArianeGroup

(AG)

CEO: Christophe Bruneau Founded: 2015 Successes: 0 Failures: 0 Pending: 0

Agency Type:

ArianeGroup (formerly Airbus Safran Launchers) is an aerospace company based in France. A joint venture between Airbus and Safran, the company was founded in 2015 and is headquartered in Issy-les-Moulineaux. It consists of three core arms: aerospace, defence and security.

INFO WIKI

Related News

ESA

Themis stands on the launch pad

From the ESA Blogs.

Arstechnica

After a very slow start, Europe’s reusable rocket program shows signs of life

Although Themis is making progress, the program is several years behind schedule.

European Spaceflight

ArianeGroup Completes Themis Integration Ahead of Combined Tests

ArianeGroup has announced that the first Themis reusable rocket demonstrator has been fully integrated and is on its own four legs on a launch pad in Sweden. The demonstrator will now be put through a combined test campaign before an initi…

European Spaceflight

ESA “Waiting for Spring” to Launch Themis Reusable Rocket Demonstrator

The European Space Agency (ESA) has revealed that, with the launch facility in Sweden currently “under snow,” it is “waiting for spring” to launch an initial hop test of its Themis reusable rocket booster demonstrator. ESA began work on th…

European Spaceflight

SSC Space Opens Orbital Launch Control Center at Esrange

SSC Space has officially opened the Esrange Space Center’s new Orbital Launch Control Center, which will be used to manage future rocket launches from the facility. The Esrange Space Center in northern Sweden has hosted suborbital rocket l…

Esrange Space Center

Launch Complex 3B


Long March 2D
Success
3 days, 7 hours ago
4 x SatNet test satellites
Launch Complex 3 (LC-3/LA-1) - Xichang Satellite Launch Center, People's Republic of China

Officially described as "Satellite-Internet Technology Demonstration Satellites". Probably 4 test satellites for the Chinese state-owned LEO commu…


Falcon 9
Success
3 days, 9 hours ago
Starlink Group 17-41
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Atlas V 551
Success
4 days, 1 hour ago
Amazon Leo (LA-07)
Space Launch Complex 41 - Cape Canaveral SFS, FL, USA

Amazon Leo, formerly known as Project Kuiper, is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, thi…


Falcon 9
Success
4 days, 12 hours ago
Starlink Group 10-53
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 7A
Success
1 week ago
TJSW-24
201 - Wenchang Space Launch Site, People's Republic of China

Chinese classified satellite claimed to be for communication technology test purposes. Actual mission not known.


Falcon 9
Success
1 week ago
Starlink Group 17-37
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon 9
Success
1 week, 1 day ago
Starlink Group 10-47
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 2F/G
Success
1 week, 2 days ago
Shenzhou 23
Launch Area 91 (SLS-1 / 921) - Jiuquan Satellite Launch Center, People's Republic of China

Shenzhou 23 will be the 23rd flight of the Shenzhou program.


Starship
Success
1 week, 4 days ago
Flight 12
Orbital Launch Pad 2 - SpaceX Starbase, TX, USA

12th test flight of the two-stage Starship launch vehicle. Maiden Flight of Starship V3. The flight test’s primary goal will be to demonstrate eac…


Electron
Success
1 week, 4 days ago
Viva La StriX (StriX Launch 9)
Rocket Lab Launch Complex 1B - Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand

Synthetic aperture radar satellite for Japanese Earth imaging company Synspective.