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Japan launched a rocket dwarf

Media-holding “star” reports. Japan Aerospace Exploration Agency (JAXA) made a successful launch of the carrier rocket SS-520, designed for ultra-small satellites.

According to Nikkei , rocket launch from Baikonur carried Utinoura in Kagoshima Prefecture. Launched missile is the smallest in the world. Its length is 9,54 m, diameter – 52 cm, and weight – 2,6 tons. Expected, that the rocket will orbit developed by the University of Tokyo trehkilogrammovy microsatellite, designed, in particular, for photographing the surface of the Earth.

earlier it was reported , We returned to developing a reusable rocket in Russia. Crown project involved experts Makeyev State Rocket Center.

Japan launched a rocket dwarf

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Website polit.info clarifies, what, through the use of publicly available batteries and other relatively low-cost components, Japan Aerospace Exploration Agency (JAXA) able to minimize the cost of developing and launching rockets. Total expenditure did not exceed 400 million yen (3,6 million dollars).

SS-520 ran before, last month. However, if the launch is unsuccessful. The reason was the inadequate design of electric cable protection. That flight had to be suspended, machine fell into the Sea of ​​Japan.

About the circumstances of the previous – unsuccessful – run a mini-rocket wrote in detail editorial portal topwar.ru. true, Their version differs slightly from the one, which he introduced polit.info.

According to preliminary information, newspaper writes, damage is caused by the, that the fuel, is in the 2 nd stage of the carrier rocket, for some reason failed to ignite. Thereafter, the missile continued coasting, but in the end the beginning of the fall.

All emphasis in this story finally parted professional publications in specialized journals “All about space” (aboutspacejornal.ru). here is what scientific editors: Analysis of remote tracking data showed, gazoreaktivnaya that the control system was not able to guide the missile towards the horizon – it means, that the inclusion of the second stage of the engine would not lead to success run.

Further, the publication considers the features of the design and requirements in the market space technology.

The pilot launch of a modified SS-520 missiles with solid-added third stage was scheduled for output to low-Earth orbit 3-pound kubsata TRICOM-1. Start was funded by the Ministry of Economy, Trade and Industry; start value of about 400 million yen (3,5 million $). At launch, it was the smallest rocket to launch payloads into orbit.

 

Japan launched a rocket dwarf

foto-i-mir.ru

At launch missiles formed the need for rapid and low-cost start-up of small dimensions satellites – kubsatov. Since the advent in 2003 kubsatov year and the beginning of 2017 It was launched more than a year 300 such satellites. In the coming 2017 year, it was announced plans to launch about 200 kubsatov. At the time of startup SS-520-4 all such satellites were launched as oilfield load at startup significantly larger spacecrafts. The cost of these launches is quite high, and the launch itself kubsata rigidly attached to the base load start. In this situation, the market launch of ultra-small satellite appeared economic niche for ultra-small rockets. It is to fill this niche and designed rocket SS-520-4. 27 May 2016 the Ministry of Economy, Trade and Industry of Japan announced the financing of the project of creating ultra-light booster rocket. One of the stages of the project was announced the creation of the launch vehicle based on SS-520 high-altitude research rocket. The main purpose of the launch– demonstrate technology, allowing to run kubsat upgraded high-altitude research rocket.

Plan launch and flight of the launch vehicle had the sequence is specific for solid high-altitude research rockets: motion with great acceleration and several traffic areas on a ballistic trajectory, ending the beginning of the active portion of the following steps.

 

Japan launched a rocket dwarf

foto-i-mir.ru

The launch was carried out from the ramp – the initial section of the missile moves along the rail, which is part of the launch facility. Such a starting technique conventional for launching missiles and geophysical allows to set the initial rocket azimuth angles of movement and so on. D. The active section of the first stage was to last 32 seconds and during that time the rocket was to reach a height of 26 km. From that moment on was to begin the first movement portion along a ballistic trajectory, duration 2 minutes 19 seconds. During the first portion of the ballistic nose cone planned reset (on high 78 km), undocking the first stage (on high 79 km), stabilizing twist-rocket (94 km), update since the start of the second stage (168 km). Across 2 minutes 50 seconds after launch at an altitude 174 km should turn on the engine of the second stage, which was supposed to work 24 seconds and, reaching a height 186 km, the second step was to separate. AT 3:48 inclusion should occur through the third stage and 25 seconds, the engine should be switched off. Across 7 minutes 30 seconds after the rocket launch was expected to reach heights 201 km, velocity 8,1 km / s, distance from the starting point 1818 km, and at this time to happen separation of the payload from the launch vehicle

 

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