View Full Version : Japan's H2 HTV for the ISS and other Japanese space plans

Launch window
2005-Jul-17, 06:20 PM
Perhaps inspired by the Russian-Progress and the European design for the jules-verne ATV, the Japanese H-2 Transfer Vehicle or HTV seems to be on track. Back in the 1980s Japan was the big talk, everyone was so hyped up about how good the Tokyo technology was and how Jpaan might even build craft that would surpass NASA's designs. The Japanese had launched communications satellites, probes to comets Suisei and Sakigake and craft for Earth sciences. However economic stagnation has hurt the economy and the space industry and Japan has been struggling to get out from under the shadow of China, which put its first astronaut into orbit in October 2003 plus Beijing has since announced it is aiming for the moon. The 1988 Space Station Intergovernmental Agreement allowed ESA and NASDA or JAXA to use the Ariane-5, H-2A or other indigenous launchers for resupplying their Station modules and Japan were to start developing a rocket to launch the 15,000 Kg payload but selected contractor MHI-Mitsubishi Japan reported that the net payload was down to 6 tonnes.


Japan has had trouble in recent years, six major failures in the past 6 or 7 years, last year it launch of spy satellites turned into an expensive H-2 fireball, million of dollars down the drain. Years earlier a bad motor sent the communication satellite to be burnt in the radiation belts, Nozomi the Mars craft went Kaput, recently they have failed to launch spy satellites over N Korea in 98 the H 2 second-stage went sayonara, then during a second attempt the first-stage H2 engine failed. Japanese government officials are now increasingly worried about the Japanese Experiment Module's future operating costs and Japan will be expected to contribute $410-450 million per year which would be half of it for ISS operations NASDA's share is 12.8% and the rest for ancillary infrastructure costs. The total budget could amount to almost a third of NASDA's total budget by 2005. Japan will now try to get out from under the shadow of China who have stared uptting people into orbit in October 2003 and the Chinese announced they were aiming for the Moon. Japan plans to start building a manned base on the moon and a space shuttle within the next 20 years newspaper reports have said.

Currently Japan is doing the HAYABUSA mission due to rendevous with the asteroid Itokawa (1998SF36), Japanese manned missions and Moon base ? Japan hopes to launch its first moon lander, a spacecraft called Selene, it was supposed to launch in 2003 but the H2 rockets started to see some failure, another lunar orbiter named Lunar-A will drop two penetrators onto the moon’s surface. The spacecraft's landing technology is now undergoing tests. Japan's next solar physics mission, Solar-B, is a follow-on to the highly successful Japan/US/UK Yohkoh or Solar-A. It is also likely that Japan will take part in the mission for Europe's twin BepiColumbo orbiters at Mercury. The Japanese have also recently launched the JapanAstro-E2 Satellite, Suzuka, is a replacement for the Astro-E satellite, which was destroyed because of a launch failure in 2000, innovative instrumentation on board the satellite will explore the Universe in energetic x-rays. Once it's operational, Suzuka will help astronomers understand the evolution of galaxies and the supermassive black holes at their centres. Japanese HTV launches to the ISS are planned in 2009 and 2010 for cargo lifts to the space station. Here is some more info on Japan's space plan
link (http://www.badastronomy.com/phpBB/viewtopic.php?t=19268&highlight=)
http://www.skyrocket.de/space/doc_sdat/vstar.htm]link (http://www.skyrocket.de/space/index_frame.htm?

Can Japan go to the Moon ?

2005-Jul-20, 10:34 PM
I seem to remember some talk about a wide-body H2. Like us--they are going to need a bigger rocket to go to the moon.

Launch window
2006-Feb-09, 12:25 AM
ASTRO-F is the next generation Japanese infrared space telescope due for launch in it will have imaging and spectroscopic capabilities allowing it to carry out pointings on individual sources or to take extremely deep images of selected areas of the sky.
Will they be able to do this great IR-telescope
The next flight Mu-V or M-5 with ASTRO-F is scheduled for 21st of Feb 2006, Launch of the Solar-B mission is around September 2006.

They have been unlucky with some of their other space projects
the Asteroid sampling Hayabusa mission probably failed
the first ASTRO-E Xray telescope exploded, while ASTRO-EII seems to have malfunctioned

2006-Feb-09, 10:07 PM
The H-2B looks to be R-7 class.

It's a **start**

Launch window
2006-Mar-06, 06:49 PM
Building the International Space Station (ISS) has been a painful political and technological struggle from the beginning. When Ronald Reagan agreed to allow NASA to go ahead with its space station dream in 1984, it was to be a symbol of American technological prowess, made possible and perhaps easy by regular flights of the space shuttle. Tragically, it didn’t turn out that way. The Shuttle’s flaws prevented it from becoming the low cost and reliable “DC-3 of space” that so many people in and out of NASA had hoped it would be....
...It will take at least seven shuttle missions to complete the truss, solar array, and heat radiator assembly. This mean that the heads of agency decision to launch ESA’s Columbus and Japan’s Kibo modules before the main power and temperature control system is fully installed was not made on the basis of logic. Instead, it looks as if two factors are involved: first, the Europeans and Japanese are afraid that unless they get their station elements up there as fast as possible they will never arrive. Second, once their modules are attached they automatically receive certain privileges, including a bigger say in ISS operations. Mike Griffin seems to have decided to humor them.

Launch window
2006-Mar-24, 07:36 PM
Time to reconsider intl space station
Keiko Chino Yomiuri Shimbun Staff Writer
Japan's laboratory facility has been stored in the United States, ready to be transported, since 2003.
The lab has already cost 330 billion yen, and the overall cost of sending the lab into space is expected to be 650 billion yen. The program will probably come in for strong criticism if the three launches required to put the lab into orbit are not completed.
A space shuttle has not been launched since July.
In January 2005, NASA announced it planned to launch 28 shuttle flights by 2010. The number was revised down to 18 flights in September and to 16 in the latest revision on March 2.
Prospects for a successful completion of the program are dimming.

Launch window
2007-Feb-23, 06:11 PM
Crew set for Japanese lab, Canadian robotics mission
NASA has assigned the crew for space shuttle mission STS-123. The flight will deliver both the first component of the Japanese Experiment Module Kibo and the new Canadian Dextre robotics system to the International Space Station.