Recorded mission

Watch

Institute of Space and Astronautical Science

Mu-3S-II | Yohkoh

Launch Successful

Coverage link pending

Recorded mission coverage

A coverage link has not been published yet. Mission status and timing remain available here.

Playing a video connects to YouTube. Coverage may be scheduled, live or recorded. If a player is unavailable, use “Open source”.

Mission brief

The flight at a glance.

The objective of Solar A or Yohkoh (Japanese for sunbeam) is to study the high-energy radiations from solar flares (hard and soft X-rays and energetic neutrons) as well as quiet structures and pre-flare conditions. The mission is a successor to Hinotori, a previous Japanese spacecraft flown at the previous solar activity maximum in 1981.

Open the full mission →

Published flight sequence

Know what comes next.

Planned timings relative to the target. These steps do not indicate live progress.

A flight sequence has not been published for this mission.