SpaceX has scheduled to launch Falcon 9 rocket by carrying two payloads to orbit, and this launch is said to be another interesting launch by the company. In this launch, it will be carrying five satellites for Iridium which is needed to get past at least 500 miles up, but NASA mission will be starting from 300-mile mark. To achieve this SpaceX has planned to make a pit stop at 300-mile mark.
NASA is planning to launch two new satellites which are known as GRACE, and it will replace the other two who are going to retire after 16 years in orbit. GRACE or Gravity Recovery and Climatic Experiment is the name of the new satellite, and it will help in measuring the changes occurs in the gravitational field. They will also help in predicting the earthquake and also change in weather.
SpaceX has planned to take the rocket’s first stage on the outside of the earth atmosphere, and then it will separate the stage from first, and it will land safely. The second stage will then start to ignite to take the payload to the orbit. This second stage will burn till it reaches the desired altitude required for deployment of the payload.
When the rocket reaches at 305 miles, it will make a nose dip os about 30 degrees down and roll a bit up to put twin GRACE-FO satellites in the position. The one will be pointing towards the earth and the other towards space. When they are in position, then the separation system will send the two satellites out of the rocket and at a speed of about a foot per second.
After placing them, Falcon 9 will resume its journey by again reigniting the second stage engine and place the IRIDIUM NEXT satellites which are about 485 miles up. The engine will then cut off, and the rest payload will be deployed in the space.