Iran Press/Iran News: Iran is now among the 10 countries with space technology. Currently, the construction of satellite launch bases is in the hands of 6 countries, and Iran has the next rank in terms of space base development. The space industry is part of HiTech. Despite all the restrictions, Iran has access to space technology.
Designing and building satellite launchers and important steps in building home-made satellites, launching them, receiving data, and finally using the received data shape the complete cycle of the technology.
The United States and Europe have claimed that the launch of Iranian satellite carriers and scientific and research satellites were developed within the framework of Iran's missile program and see it as a threat to international security.
In remarks on the occasion of the National Space Technology Day on February 3, Minister of Defense Brigadier General Amir Hatami wrote: "The difficult path, full of limited space progress, was taken step by step, and it shows the internal capability of advanced science and technology."
Importance of space and satellitesSpace technology, especially the launch of satellites, has become very important. According to Morteza Barari, head of the Iranian Space Agency; Today, satellite applications are so pervasive that I would say life without satellites would be impossible or very difficult.
Satellite services are currently widely used, including communications, satellite broadcasting, the environment, natural hazard management, agriculture, forests and pastures, mining, energy, water resources, urban development, meteorology, and urban services, and... Also, satellite monitoring can provide very useful information and data for the country's management to decision-makers. Thus, satellite and space services are increasing day by day. All this would be impossible without satellites.
Zoljanah Launching
By launching Zoljanah, another great step has been taken in Iran's access to space. It also was widely covered in the world media.
Researchers in the country, after designing and building 7 satellite satellites, have been building the Zoljanah satellite carrier for the past two years and successfully launched its first research project with the aim of sub-orbital testing and achieving the technology of the most powerful solid-fuel engine. By launching the satellite carrier; an important step was taken in this field. At the same time, the successful launch of Zoljanah shows that space industry, despite the imposition of the most extensive sanctions against Iran, has not only not stopped but have continued their rapid path. One of the most important achievements of the test is achieving the most powerful solid-fuel engine in the country with a thrust greater than 75 tons.
Overview
Zoljanah, a three-stage carrier, which can technically compete with the world's top satellite carriers, and has two stages of solid propulsion and a single liquid one, and is capable of carrying satellites weighing up to 220 kg in a 500-kilometre orbit. The satellite is 25.5 meters long and weighs about 52 tons. The first and second stages' diameter is 1.5 meters, and the diameter of the third stage is 1.25 meters. In this satellite, the most Iran-made powerful solid-fuel engine has been used. Solid fuel is mainly used in the early stages of satellite flight because it generates a lot of energy in a short period of time.
The spokesman for the Iranian Ministry of Defense's Space Group Ahmad Hosseini said: "In phase one, the satellite operates on Zoljanah for about 70 seconds and reaches a height of 15 km, at which the booster detaches. The researchers placed a research payload on the satellite and tested part of the subsystems at this stage, measuring the amount of vibration, temperature, and so on. According to him, the goal was not to reach orbit, and the launch was aimed at the submarine, and the flight was carried out as far as it was intended. The Zoljanah satellite's mission is to place a satellite with a maximum weight of 220 kg at an altitude of 500 km.
Ahmad Hosseini stressed, using the carrier, both a 220 kg satellite and a set of satellites with a total weight of 220 kg can be placed in orbit. In fact, with Zoljanah, 10 cube satellites can be placed at an altitude of 500 km. While Safir as the first generation of Iranian satellite carrier in the propulsion was about 1.25 meters in diameter and its total weight was 26 tons and finally, a 50 kg satellite could reach an orbit of 450 km.
To better understand the power of Zoljanah, it should be said that the carrier can send about 10 Noor carrier into space in one launch in three complete stages. Features
An important feature of the Zoljanah is its solid-fuel engine, which is even more powerful than solid military engines. Its traction force is 75 tons, which can be upgraded to 100 tons, which is the first time this has happened in solid fuel engines made in Iran.
Another important point about the Zoljanah carrier rocket is that it fires on a mobile launcher, which means that its launch location is not limited to a specific site and can be launched from other parts of the country as well. Other features of the satellite carrier rocket include reducing costs and increasing the speed of achieving goals, and due to the ability to launch from a moving platform, it is possible to place the satellite in the Sun-synchronous orbit, which provides special capabilities for metering satellites. The orbit is usually suitable for photography, meteorological and remote sensing satellites.
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