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International Space Flight (ESA, Russia, China and others) => Japanese Launchers => Topic started by: woods170 on 06/24/2019 06:31 pm

Title: M-3SII missions
Post by: woods170 on 06/24/2019 06:31 pm
In the 1980s the original M-3 launch vehicle was upgraded to increase performance. The resulting launch vehicle M-3SII was used to launch Japan's contributions to "the Halley armada" in 1985.

M-3SII-1 - January 8, 1985

This was the first flight of the M-3SII vehicle and it launched the MS-T5 interplanetary probe (renamed SAKIGAKE after launch) on an intercept trajectory to comet Halley.

More details about this mission here:
- https://space.skyrocket.de/doc_sdat/ms-t5.htm (https://space.skyrocket.de/doc_sdat/ms-t5.htm-)
- (https://space.skyrocket.de/doc_sdat/ms-t5.htm-) https://en.wikipedia.org/wiki/Sakigake (https://en.wikipedia.org/wiki/Sakigake)
Title: Re: M-3SII missions
Post by: woods170 on 06/24/2019 06:36 pm
M-3SII-2 - August 18, 1985

Second mission of the M-3SII launch vehicle. It launched the Planet-A interplanetary probe (renamed SUISEI after launch) on an intercept trajectory to comet Halley. SUISEI was a near identical copy of SAKIGAKE, but carried a different main instrument.

More details about this mission here:
- https://space.skyrocket.de/doc_sdat/planet-a.htm (https://space.skyrocket.de/doc_sdat/planet-a.htm)
- https://en.wikipedia.org/wiki/Suisei_(spacecraft)
Title: Re: M-3SII missions
Post by: woods170 on 06/24/2019 06:42 pm
M-3SII-4 - February 21, 1989

Fourth successful mission of the M-3SII launch vehicle. The EXOS-D upper atmosphere research satellite was launched into a highly inclined, highly elliptical orbit. The satellite was renamed AKEBONO upon reaching orbit, per Japanese traditions.

More details about this mission here:
- https://space.skyrocket.de/doc_sdat/exos-d.htm (https://space.skyrocket.de/doc_sdat/exos-d.htm)
- https://en.wikipedia.org/wiki/Akebono_(satellite (https://en.wikipedia.org/wiki/Akebono_(satellite))