Watch the Launch

Additional Media

Inmarsat-6 F1 launch

Tune in to watch the launch of I-6 F1 from the JAXA Tanegashima Space Centre in Japan with Mitsubishi Heavy Industries.

I-6 F1

Inmarsat owns and operates 14 satellites in geostationary orbit 35,786km (22,236 miles) above the Earth, delivering three market-leading networks.

Inmarsat-6 F1

Circle Image

Overview

Destination: Geostationary Transfer Orbit
Mission: Communications

Geostationary Transfer Orbit Yoshinobu Launch Complex Tanegashima, Japan

Inmarsat-6 is the sixth generation of satellites for the London-based global mobile satellite communications operator Inmarsat. It consists of a dual mission to augment both L-band and Ka-band Global Xpress services. Airbus Defence and Space has been awarded a contract by Inmarsat to design and develop the first two Inmarsat-6 (I-6) mobile communications satellites, creating the most versatile mobile services satellites in its fleet. The two I-6 satellites are based on Airbus Defence and Space's Eurostar platform in its E3000e variant, which exclusively uses electric propulsion for orbit raising. The satellites take advantage of the reduction in mass that this electric propulsion technology enables for a dual payload mission, with an exceptionally large next generation digitally processed payload. I-6 F1 and F2 both carry a large 9 m aperture L-band antenna and nine multibeam Ka-band antennas, and feature a high level of flexibility and connectivity. A new generation modular digital processor provides full routing flexibility over up to 8000 channels and dynamic power allocation to over 200 spot beams in L-band. Ka-band spot beams are steerable over the full Earth disk, with flexible channel to beam allocation.

Updates

SwGustav • Dec. 22, 2021, 6:26 p.m.

Successful launch confirmed by Inmarsat


Cosmic_Penguin • Dec. 19, 2021, 6:43 a.m.

One day slip due to weather forecasts.


Nosu • Dec. 18, 2021, 10:41 p.m.

T-0 confirmed


H-IIA

Family: H-II
Configuration: A 204

H-IIA (H2A) is an active expendable launch system operated by Mitsubishi Heavy Industries (MHI) for the Japan Aerospace Exploration Agency. The liquid-fueled H-IIA rockets have been used to launch satellites into geostationary orbit, to launch a lunar orbiting spacecraft, and to launch Akatsuki, which studied the planet Venus. Launches occur at the Tanegashima Space Center.

Specifications
  • Stages
    2
  • Length
    53.0 m
  • Diameter
    4.0 m
  • Fairing Diameter
    4.0 m
  • Launch Mass
    445 T
  • Thrust
    2260 kN
Family
  • Name
    H-IIA
  • Family
    H-II
  • Variant
    A 204
  • Alias
  • Full Name
    H-IIA 204
Payload Capacity
  • Launch Cost
    $90M
  • Low Earth Orbit
  • Geostationary Transfer Orbit
    6000 kg
  • Direct Geostationary
  • Sun-Synchronous Capacity

Mitsubishi Heavy Industries

Circle Image
Seiji Izumisawa Founded: 1884 Successes: 82 Failures: 3 Pending: 9

Agency Type: Commercial

Mitsubishi Heavy Industries, Ltd. is a Japanese multinational engineering, electrical equipment and electronics company headquartered in Tokyo, Japan. MHI is one of the core companies of the Mitsubishi Group. MHI's products include aerospace components, air conditioners, aircraft, automotive components, forklift trucks, hydraulic equipment, machine tools, missiles, power generation equipment, printing machines, ships and space launch vehicles. Through its defense-related activities, it is the world's 23rd-largest defense contractor measured by 2011 defense revenues and the largest based in Japan.

INFO WIKI

Related News

Spaceflight Now

H-2A rocket deploys powerful satellite for mobile telecom operator Inmarsat

The first in a new line of powerful dual-band satellites for Inmarsat’s communications network linking ships, airplanes, and other mobile customers successfully launched Wednesday aboard a Japanese H-2A rocket.

SpaceNews

MHI launches Inmarsat’s first dual-band satellite

Inmarsat’s first dual-band telecommunications satellite launched Dec. 22 aboard Mitsubishi Heavy Industries’ H-2A rocket.

NASA Spaceflight

H-IIA launches next-generation Inmarsat-6 Flight 1 satellite

Japan is set to launch the Inmarsat-6 Flight 1 (I-6 F1) satellite Wednesday as a part of Inmarsat’s next-generation satellite broadband service. I-6 F1 will launch aboard an H-IIA 204 rocket during a two-hour launch window that opens at 11…

Tanegashima, Japan

Yoshinobu Launch Complex


Falcon 9
Success
2 days, 5 hours ago
Starlink Group 4-6
Launch Complex 39A - Kennedy Space Center, FL, USA

A batch of 49 satellites for Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 2D
Success
4 days, 5 hours ago
Shiyan 13
Launch Complex 9 - Taiyuan, People's Republic of China

Chinese satellite declared for technological demonstration purposes, details TBD.


LauncherOne
Success
1 week ago
Above the Clouds
Mojave Air and Space Port - Air launch to orbit

Mission to a 500 km circular orbit inclined at 45 degrees carrying eight R&D satellites from US government agencies with communications and navigatio…


Falcon 9
Success
1 week ago
Transporter 3 (Dedicated SSO Rideshare)
Space Launch Complex 40 - Cape Canaveral, FL, USA

Transporter 3 mission is a dedicated rideshare flight to a sun-synchronous orbit with dozens of small microsatellites and nanosatellites for commerci…


Falcon 9
Success
2 weeks ago
Starlink Group 4-5
Launch Complex 39A - Kennedy Space Center, FL, USA

A batch of 49 satellites for Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Simorgh
Failure
3 weeks, 1 day ago
3 unknown payloads
Imam Khomeini Spaceport - Semnan Space Center, Islamic Republic of Iran

Three unknown research payloads are reported to have been sent into space, according to the Iranian Ministry of Defense. However, no new objects are …


Long March 3
Success
3 weeks, 1 day ago
TJSW-9
Launch Complex 2 (LC-2) - Xichang Satellite Launch Center, People's Republic of China

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


Long March 2D
Success
3 weeks, 1 day ago
Tianhui 4
Launch Area 4 (SLS-2 / 603) - Jiuquan, People's Republic of China

Chinese cartography satellite, details TBD.


Angara A5/Persey
Failure
3 weeks, 3 days ago
Dummy payload
35/1 - Plesetsk Cosmodrome, Russian Federation

This is the third test flight of Angara A5 launch vehicle and its first flight with Persey upper stage. Since it's a test flight, the rocket carries …


Soyuz 2.1b/Fregat-M
Success
3 weeks, 3 days ago
OneWeb 12
31/6 - Baikonur Cosmodrome, Republic of Kazakhstan

A batch of 36 satellites for the OneWeb satellite constellation, which is intended to provide global Internet broadband service for individual consum…