description Yohkoh Overview
Yohkoh was Japan's 1991 Solar-A observatory, notable for a decade of X-ray solar flare and corona observations with NASA and UK partners.
insights Why this score
Yohkoh ranks #131 of 212 in the Space Mission ranking, behind Mars Orbiter Mission, ahead of GALEX.
help Yohkoh FAQ
How good is Yohkoh?
Yohkoh scores 7.40/10 (Good) on Lunoo, making it a well-rated option in the Space Mission category.
What are the best alternatives to Yohkoh?
See our alternatives page for Yohkoh for a ranked list with scores. Top alternatives include: TRACE, RHESSI, Hitomi.
How does Yohkoh compare to TRACE?
See our detailed comparison of Yohkoh vs TRACE with scores, features, and an AI-powered verdict.
Is Yohkoh worth it in 2026?
With a score of 7.40/10, Yohkoh is a solid option in Space Mission. See all Space Mission ranked.
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