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H3 Rocket

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Japan's H3 Rocket Makes Comeback, Deploys Six Satellites on Return-to-Flight
space-exploration28 days ago

Japan's H3 Rocket Makes Comeback, Deploys Six Satellites on Return-to-Flight

Japan's JAXA successfully launched the H3 rocket on its first flight since December's failure, delivering six payloads—PETREL, STARS-X, BRO-22, VERTECS, HORN-L, and HORN-R—to their orbits from Tanegashima Space Center. The mission used the rocket's three LE-9 engines, marked the vehicle's return-to-flight, and confirmed nominal separation of all payloads about 16 minutes after liftoff, following a previous mishap caused by a damaged payload adapter.

via Space|
#h3-rocket#jaxa#michibiki-5
Japanese MMX Moves to Launch Pad for Phobos Sample-Return Mission
space-exploration2 months ago

Japanese MMX Moves to Launch Pad for Phobos Sample-Return Mission

Japan’s Martian Moons eXploration (MMX) has reached Tanegashima for a late-2026 launch on the H3 rocket. The mission will collect about 10 grams from Phobos and return the samples to Earth in 2031, aided by the IDEFIX rover to scout a landing site. MMX aims to help determine whether Phobos and Deimos are captured asteroids or Mars ejecta, offering insights into Mars’ history and the inner solar system; after delays tied to H3 issues, the project targets a Mars-orbit phase in 2027 and a Phobos landing in 2029.

via Space|
#h3-rocket#mmx#phobos
Japan’s H3 rocket loses 5-ton Michibiki 5 satellite after payload fairing separation
technology5 months ago

Japan’s H3 rocket loses 5-ton Michibiki 5 satellite after payload fairing separation

Japan’s eighth H3 rocket failed after its payload fairing separated, causing the roughly 5-ton Michibiki 5 navigation satellite to be lost in Pacific debris; telemetry hints at a LH2 tank pressure drop and possible damage to the satellite mounting, with investigators considering a fairing–satellite impact or residual stress as potential causes. The second stage briefly placed the vehicle in a low-altitude orbit before reentry hours later, and Japan’s MMX mission launch remains awaiting a full investigation before proceeding.

via Ars Technica|
#h3-rocket#jaxa#michibiki-5
Japan’s H3 Rocket Fails to Deploy Satellite in Multiple Launches
space6 months ago

Japan’s H3 Rocket Fails to Deploy Satellite in Multiple Launches

Japan's H3 rocket experienced a second-stage failure during its seventh launch, resulting in the loss of the QZS-5 navigation satellite. The issue involved premature shutdown of the second stage engine, disrupting the planned orbit and leading to the satellite's likely reentry. This marks the second failure for the H3 rocket and impacts Japan's upcoming space missions, including a Mars moon exploration and an asteroid mission.

via SpaceNews|
#h3-rocket#japan#launch-failure
Japan Successfully Launches Kirameki 3 Satellite with H3 Rocket
space1 year ago

Japan Successfully Launches Kirameki 3 Satellite with H3 Rocket

Japan's H3 rocket successfully launched the Kirameki 3 military communications satellite from Tanegashima Space Center, marking its fourth flight. The satellite, also known as DSN-3, will be used for military communications by the Japanese military and is positioned in geostationary orbit. This launch follows the H3's initial failed attempt and subsequent successful missions, solidifying its role as Japan's new medium-lift workhorse rocket.

via Space.com|
#h3-rocket#japan#jaxa
"Japan's Successful Launch of H3 Rocket Marks Next-Generation Milestone"
space-technology2 years ago

"Japan's Successful Launch of H3 Rocket Marks Next-Generation Milestone"

Japan's new H3 rocket successfully completed its second test flight, marking a significant milestone for the country's space program. The rocket, which is set to power most of Japan's space missions in the coming decade, demonstrated its capabilities by deploying a dummy payload and two smaller satellites into orbit. While Japan aims for the H3 to compete in the global commercial launch market, it faces tough competition from established players like SpaceX. Nonetheless, the H3 is crucial for Japan's space program, offering improved cost-effectiveness and capabilities compared to its predecessor, the H-IIA rocket.

via Ars Technica|
#commercial-launch#h3-rocket#japan
"Japan's H3 Rocket Successfully Reaches Orbit on Second Launch"
space2 years ago

"Japan's H3 Rocket Successfully Reaches Orbit on Second Launch"

Japan's flagship H3 rocket successfully reached orbit and released two small observation satellites in its second test following a failed debut launch last year, marking a significant achievement for the country's space program. The launch is a crucial step in Japan's efforts to secure independent access to space and be competitive in the global satellite launch market. The successful mission comes after a recent streak of space successes for Japan, including a historic precision moon landing.

via CBS News|
#h3-rocket#japan#jaxa
"Successful Second Launch: Japan's H3 Rocket Reaches Orbit"
space-technology2 years ago

"Successful Second Launch: Japan's H3 Rocket Reaches Orbit"

Japan's H3 rocket successfully reached orbit and released two small observation satellites in a crucial test following a failed debut last year, marking a significant achievement for the country's space program. The launch, which was closely watched as a test for Japan's space development, is a boost for the country's space ambitions after recent successes, including a historic precision moon landing. The H3 rocket's main missions are to secure independent access to space and be competitive in the global satellite launch market, with hopes to achieve better price competitiveness after about a dozen more launches.

via The Associated Press|
#h3-rocket#japan#jaxa
"Japan's Successful Second Launch of H3 Rocket Marks Return to Orbit"
space-technology2 years ago

"Japan's Successful Second Launch of H3 Rocket Marks Return to Orbit"

Japan successfully launches its second test model of the H3 rocket, a year after the inaugural flight failed. The Japan Aerospace Exploration Agency (Jaxa) and Mitsubishi Heavy Industries have designed the H3 to replace the H-IIA, aiming for lower costs and greater payload capacity. The successful liftoff is a boost to Japan's space program, with plans to launch about 20 satellites and probes by 2030, including lunar exploration missions and cargo spacecraft for the US-led Artemis program. The H3's launch aims to compete with affordable commercial vehicles like SpaceX's Falcon 9, as other new rockets are being tested this year.

via The Guardian|
#h3-rocket#japan#jaxa
"Japan's H3 Rocket Successfully Reaches Orbit on Second Launch"
space2 years ago

"Japan's H3 Rocket Successfully Reaches Orbit on Second Launch"

Japan's H3 rocket successfully reached orbit on its second launch, nearly a year after its inaugural launch failed due to an engine ignition issue. The rocket, launched by JAXA, deployed multiple payloads, including an imaging satellite and a mass simulator, demonstrating its ability to perform controlled reentry. The H3 rocket is crucial to Japan's future space missions, including launching cargo to the International Space Station, and is designed to operate at lower costs than its predecessor, the H-2A.

via SpaceNews|
#h3-rocket#japan#jaxa