Launch report · Mitsubishi Heavy Industries

H3-24 | Martian Moons eXploration (MMX)

H3-24 by Mitsubishi Heavy Industries from Yoshinobu Launch Complex LP-2, Tanegashima Space Center, Japan, NET 2026-10-19 19:41 UTC. Outcome: launch successful. Our final pre-flight call was GO at 85% confidence, T-4d 9h - and it was right.

Open live in mission control →

LAUNCH FACTS

VEHICLE
H3-24
PROVIDER
Mitsubishi Heavy Industries
PAD
Yoshinobu Launch Complex LP-2
LOCATION
Tanegashima Space Center, Japan
NET
2026-10-19 19:41 UTC
WINDOW
Instantaneous
ORBIT
Mars Orbit
LL2 STATUS
Launch Successful

MISSION

MMX is a Japanese scientific mission to land on Phobos, one of the two moons of Mars, to collect samples before bringing them back to Earth. The mission includes a small French/German rover to explore the surface of Phobos.

OUTCOME + OUR CALL

Official outcome: Launch successful

Our final pre-flight call was GO at 85% confidence, T-4d 9h - and it was right.

✓ Call matched the outcome

Scoring rule: a launch that reached flight means the countdown proceeded, so a GO or HOLDING call is right and a SCRUB call is a false alarm. Only the last call made before T-0 counts.

ANALYST READ

Final pre-flight read · 2026-10-15 10:37 UTC · T-4d 9h · GO 85%

Countdown green; media briefings underway for Oct 19 NET

X posts center on NASA/JAXA briefings and mission hardware with no reported anomalies or holds. Organic chatter from established accounts reinforces nominal status.

CALL TIMELINE (2)

Logged (UTC)T-minusCallConfidenceSource
2026-10-15 10:37T-4d 9hGO92%grok
2026-10-15 10:37T-4d 9hGO85%grok

Launch data: Launch Library 2 · Calls: RocketScan (Grok over live X chatter) · Report URL: /launches/h3-24-martian-moons-exploration-mmx