IRIDIUM-8 Launch
Posted: Fri Jan 11, 2019 11:17 am
I just watched the live stream of the SpaceX FALCON 9 launch of the IRIDIUM-8 payload. The launch was from Vandenberg Air Force Base in California, with a trajectory to the South. The main engine FALCON 9 booster rocket was successfully recovered in the Pacific Ocean by autonomously landing itself on the drone ship, MV JUST READ THE INSTRUCTIONS. To be able to control the rocket, return it to Earth, and land it on a ship is really, well, rocket science. It looks like the rocket landed about 6-inches off target center. This is just amazing stuff. Landing a rocket on a ship requires some rather careful navigation--of both the rocket and the ship.
The mission payload consists of ten IRIDIUM-Next satellites, numbers 66 to 75. The IRIDIUM satellite constellation and network is what provides most "sat-phone" service for the entire globe. The name "Iridium" was taken from the atomic number of the element Iridium, 77, because the original plan called for having 77 satellites in orbit. The satellite constellation was later reduced to 66. The original constellation began to be launched in 1998. The IRIDIUM-Next is the second generation of satellites, with the first launch about two years ago. With this eighth mission, the $3-billion refresh of the satellites will be complete. SpaceX has provided the launch service for all the IRIDIUM-Next missions.
The mission payload consists of ten IRIDIUM-Next satellites, numbers 66 to 75. The IRIDIUM satellite constellation and network is what provides most "sat-phone" service for the entire globe. The name "Iridium" was taken from the atomic number of the element Iridium, 77, because the original plan called for having 77 satellites in orbit. The satellite constellation was later reduced to 66. The original constellation began to be launched in 1998. The IRIDIUM-Next is the second generation of satellites, with the first launch about two years ago. With this eighth mission, the $3-billion refresh of the satellites will be complete. SpaceX has provided the launch service for all the IRIDIUM-Next missions.