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How to watch DESTINY+ & RAMSES

Thu, Apr 20 (time not set yet)

H3-24 · Mitsubishi Heavy Industries · Tanegashima Space Center, Japan

Add this launch to your calendar (.ics) · every launch from Tanegashima

How firm is the date: Day known, time not set
Date history: No date change recorded for this launch.
At the pad when the window opens: Unknown until an exact time is set.

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What to expect

We have not checked this mission's landing plan by hand. If a booster flies back to a landing zone on land, its landing brings a sonic boom; the provider's mission page says where the booster lands.
Sound travels about a kilometre every 3 seconds (a mile every 5), so at a distance you see liftoff before you hear it.

Will it go on time?

A launch date is a "no earlier than" target. Weather, a technical hold, the range or a boat in the hazard area can each stop a count on the day, and the provider then names a new time. We do not publish launch odds we cannot back; here is what we recorded.

1 launch has flown from Tanegashima since we started recording date changes on Aug 29, 2026; 0 of them had the date or time moved at least once after we first recorded it, and 0 slipped by a day or more. That is too few launches to call it a rate.
Of the 39 launches that have flown from every site we track since we started recording date changes on Aug 29, 2026, 24 (62%) had the date or time moved at least once after we first recorded it, and 6 (15%) slipped by a day or more.

Sources

Launch time, status and pad: the Launch Library 2 manifest as synced by SpaceNexus; times move, and this page follows them.
Day or night: computed from the sun's position at the pad at the time shown. Distances: computed from coordinates.

The launch page: countdown, stream, date history →Every Tanegashima launch this month →Which launches slip, and by how much →

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Watch online

What to expect

Will it go on time?

Sources