Mission Demonstration Satellite 1 "Tsubasa" (MDS-1) was a Japanese technology test mission. Its aim was to test commercial off the shelf components in space, especially in the radiation belt. The whole weight of the satellite was 475 kg.
It was launched by the second H-2A on February 4, 2002. Tsubusa got retired on February 26, 2003. MDS-2 was cancelled because of budget reasons.
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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