which i mentioned , took about 230,000 man hours. 8 daneshmanian companies cooperated with sanayeh electronics company of the ministry of defense in this project, and what i noticed was that we offered this at a value of $300,000. this is the total cost of this satellite for the islamic republic of iran, if we wanted to order this from a country with a high-tech industry , the price would be below 6 million dollars, which is one-twentieth of the price . our production systems and our production lines were used in this field, the laboratories were used, and the entire expert force was used to support this matter at a cost of under 300,000 dollars. in terms of knowledge , it was really a great contribution to the country, chamran one and first satellite it was a satellite that was used in the field of orbit change and orbit correction using cold propulsion. in this field, we used cold gas. there are different techniques, there are electric ones, there are solid fuels, and different techniques, but we used cold gas in this project. this is the first time that we succeeded in changing the orbit, changing