“ proton - M” carrier rocket is 4 class rocket of heavy-duty liquid fuel, can send aerospace 700 tons object, its are main fuel is asymmetry 2 methylic hydrazine. Telstar weighs Arabia 4B 3300 kilogram, it is the satellite of the 4th acting commerce that makes by group of defense of European space navigation. It time of Yu Mosi division on November 9 before dawn 3 when the earthly synchronism path that enters booked 36000 kilometers height. Enlist in army in what anticipate 15 years inside deadline, it will be North Africa area, middle east area, and area of Western Europe part provides TV and phone signal service.
This year on Feburary 28, it is to doing obeisance to emissive field of division exert Er likewise, because fail to send the satellite,book orbit, carrier rocket of “ proton ” sends Arabia 4A Telstar failure. Telstar arrives at Arabia 4A only at that time the height of 15000 kilometers, be apart from 36000 kilometers height to differ very far. Below the situation that remedies all up, this star will be in on March 24 aerosphere burn down. Russian spaceflight branch suffers serious blow accordingly, relevant section established an accident technically to survey a group, investigate accident matter, sum up unsuccessful lesson. Through effort of near one year, arabia 4B Telstar enters the space successfully eventually, redeemed a Russian to be in the fame of spaceflight domain.