SpaceX one of the leading satellite launcher today has set 19th of May 2018 as the launching date for a Falcon 9 expedition on board are commercial fleet operator (Iridium) satellites and a joint exploration for Germany and NASA, this is what Iridium said. 

The expedition is set to launch in California In Vandenberg Air Force Base, delivering the 2 Gravity Recovery and Climate Experiment Follow-On GRACE-FO satellites, to low-earth orbit next is 5 Iridium satellites. 

The launch of Falcon 9 satellite substitutes two Dnepr expedition after the Kosmotras, a Russian-Ukrainian firm stopped setting off the satellite in year 2015. According to Iridium, Russian regulatory authorization banned its mission that was thought to orbit dual Iridium Next satellites previous to the other constellation.

On the other hand, in spite of being the 8th Falcon 9 set off, Iridium ordered from renowned launch provider, Gravity Recovery and Climate Experiment Follow- and Iridium Next expedition will be the 6th in the constellation deployment of Iridium. In an April nine release. Iridium stated that the launching on May 19, “maintains scheduled completion of the Iridium NEXT manifest in 2018.”

Iridium gets hold of the joint launch in 2017 of January, which is 7 years after agreeing an earlier agreement to launch seventy Iridium Next satellites on the Falcon 9 rockets in sets of ten each. Iridium Company has fifty Next rockets in orbit, and another twenty five awaiting launch.

According to Iridium, “our next five satellites ship to Vandenberg this week where they will join the Gravity Recovery and Climate Experiment Follow-On satellites”. 

The 2 more Falcon Nine sets off of ten satellites every satellite will complete the Iridium’s fleet refresh. And the last constellation will be consisting of sixty six active satellites, 9 of these will be in orbit spares while the six satellites will be in ground spares. 

Thales Alenia Space, a manufacturer of satellites based in Europe is creating the satellites as well as including them at Orbital ATK factory located in Arizona. 

Gravity Recovery and Climate Experiment Follow-On is a shared project of GFZ or German Research Centre for Geosciences and National Aeronautics and Space Administration or NASA. It succeeds the novel GRACE mission which launched in year 2002. The aim of this mission is to map the gravity field of earth, providing essential and valuable information regarding the movement of mass within and in the region of the Earth.