The M-V rocket, also called M-5 or Mu-5, was a Japanese solid-fuel rocket designed to launch scientific satellites. It was a member of the Mu family of rockets. The Institute of Space and Astronautical Science (ISAS) began developing the M-V in 1990 at a cost of 15 billion yen. It has three stages and is 30.7 meters high, 2.5 meters in diameter, and weighs about 140 tonnes (310,000 pounds). It was capable of launching a satellite weighing 1.8 tonnes (2 short tons) into an orbit as high as 250 km (155 miles).
The first M-V rocket launched the HALCA radio astronomy satellite in 1997, and the second the Nozomi Mars explorer in July 1998. The third rocket attempted to launch the Astro-E X-ray satellite on February 10, 2000 but failed.
A next generation of M-V rockets was planned and developing, the "Advanced Solid Rocket", with lowering the hurdles to space.
Lawmakers made national security arguments for keeping Japan's solid-fuel rocket technology alive after ISAS was merged into the Japan Aerospace Exploration Agency, which also has the H-IIA liquid-fuelled rocket. in 2003. The ISAS director of external affairs, Yasunori Matogawa, said, "It seems the hard-line national security proponents in parliament are increasing their influence, and they aren't getting much criticism…I think we’re moving into a very dangerous period. When you consider the current environment and the threat from North Korea, it’s scary.
The M-V design could be weaponised quickly although this would be politically difficult.
|February 12 1997 04:50:00||M-V-1||Muses B (HALCA)||Success|
|July 3 1998 18:12:00||M-V-3||Planet B (Nozomi)||Success|
|February 10 2000 01:30:00||M-V-4||ASTRO-E||Failure|
|May 9 2003 04:29:25||M-V-5||Muses C (Hayabusa)||Success|
|July 10 2005 03:30:00||M-V-6||ASTRO-E2 (Suzaku)||Success|
|February 21 2006 21:28:00||M-V-8|| ASTRO-F (Akari)|
SSP (solar sail sub payload)
SSP failed to open completely
|September 22 2006 21:36||M-V-7|| Solar-B (Hinode) |
SSSat failed after launch